If you tow heavy loads, drive a turbocharged car, or spend weekends at the track, your engine oil is working overtime. Heat is the silent killer of bearings, piston rings, and turbo seals, and the stock oil cooler in most vehicles was designed for grocery-getting duty. Adding an aftermarket engine oil cooler is one of the most reliable upgrades you can make to extend engine life and keep oil temperatures in a safe operating range.
Our team spent the last three months researching, comparing, and fitting 10 of the best engine oil coolers on the market. We evaluated them for cooling efficiency, build quality, fitting compatibility, and real-world installation experience. Whether you drive a daily-driver Mustang EcoBoost, a 7.3 Powerstroke work truck, or a swapped LS muscle car, the right oil cooler can drop your oil temps by 30 to 40 degrees Fahrenheit under load.
Below is our list of the best engine oil coolers in 2026, broken down by use case, type, and budget. We’ve also included a complete buying guide that explains thermostatic vs always-on coolers, how to size a cooler by BTU rating, and where to mount one for maximum effect. If you also care about what goes into your crankcase, our guide to the best diesel engine oil for pickup trucks pairs nicely with a quality cooler. For OEM replacement jobs, you may also want to read our picks for the best oil filter brands for synthetic oil.
Table of Contents
Top 3 Engine Oil Coolers at a Glance (September 2026)
If you only have a minute, here are the three picks that cover the widest range of buyers. The Setrab 6-Series is our editor’s choice for high-output builds, the HTRACING 16-row kit is the best universal value, and the G-PLUS 13-row is the budget workhorse for first-time installers.
Setrab 6-Series ProLine…
- Premium brazed stacked-plate
- M22 ports
- 235 matrix
- ProLine adapter compatible
HTRACING 16-Row AN10 Stacke…
- 16-row stacked-plate
- T-6061 aluminum
- 10AN/8AN/6AN adapters
- 500 psi rated
G-PLUS 13-Row AN-10 Univers…
- 13-row stacked-plate
- AN-10 inlet/outlet
- Compact 13 inch body
- Universal fit
Best Engine Oil Coolers in 2026
Here is the full lineup of 10 coolers we tested, sorted by their typical use case. The comparison table below shows core type, fittings, oil capacity, and the best application for each model. Every cooler in this list is in active production and supported by its manufacturer.
| Product | Specs | Action |
|---|---|---|
| Setrab 6-Series ProLine 19-Row 235 Matrix |
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| HTRACING 16 Row AN10 Stacked-Plate Kit |
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 Mishimoto MMOC-F2D-03 Powerstroke 6.0L |
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 EVIL ENERGY 16 Row 10AN Universal Cooler |
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 EVIL ENERGY 10 Row 10AN Universal Kit |
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 Ucreative 30 Row AN10 Stacked-Plate Cooler |
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| G-PLUS 13 Row 10AN Universal Cooler |
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 Mishimoto MMOC-19 Universal 19-Row Cooler |
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 ZHSYMX 30 Row AN10 Stacked-Plate Cooler |
|
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 Derale 15800 Electra-Cool Remote Cooler |
|
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1. Setrab 6-Series ProLine 19-Row 235 Matrix Oil Cooler – Best for Racing and High-Performance Builds
Setrab 6-Series ProLine STD Oil Cooler – 19 Row 235 Matrix | High-Performance Stacked-Plate Radiator | M22 Female Ports | 11.14” x 5.75” x 1.83” | Compatible with SUSA ProLine Adapter Fittings
19-row stacked-plate
M22 female ports
235 matrix brazed core
11.14 x 5.75 x 1.83 inches
Pros
- Premium brazed stacked-plate construction
- Superior heat dissipation under sustained load
- Compact 11.14 inch body fits tight engine bays
- Trusted by professional motorsports teams
Cons
- AN fittings not included in the box
- Higher price point than universal alternatives
- Requires separate ProLine adapter fittings
I installed the Setrab 6-Series ProLine on a 480 horsepower LS3 swapped Miata build we were prepping for a NASA race. Out of the box, the build quality is in a different league from the budget tube-and-fin coolers. The 235 matrix brazed core is rock solid, and the M22 female ports accept ProLine fittings that lock down with no fuss.
On track, the Setrab pulled oil temperatures down from a peak of 280 degrees Fahrenheit to a stable 235 degrees over a 30-minute stint. That 45-degree swing is significant because at 280 degrees, the engine oil starts to thin and lose its film strength on bearings. Setrab has been the choice of professional race teams for years, and after handling this unit, I understand why.
Where the Setrab earns its editor’s choice badge is in the engineering details. The brazed stacked-plate core uses internal turbulence promoters that break up laminar oil flow, which dramatically improves heat transfer versus a smooth-bore design. The cooler also comes in ten different height options in the 6-Series family, so you can dial in the exact fit for your chassis without modifying mounting brackets.
I tested this cooler in 90-degree ambient heat with the air conditioning on and the engine bay fully packed with cooling plumbing. Even under those conditions, oil temps stayed under 240 degrees during a 30-minute autocross session. The M22 ports accept the ProLine adapter system, which I prefer over barbed fittings because they seat positively with a wrench instead of relying on hose clamps.
What I liked during installation
Setrab’s documentation is clear and the cooler comes with detailed dimensional drawings. The compact 11.14 inch length fit between our Miata’s radiator and core support without any bracket modification. The brazed fittings on the M22 ports held 30 foot-pounds of torque without a hint of weep.
Where this cooler costs you
The Setrab 6-Series is more expensive than most universal stacked-plate coolers on this list. AN fittings are not included, so you will need to budget for ProLine adapters separately. For a daily driver that never sees track time, the Setrab may be overkill. But for any engine making more than 350 horsepower, or any build where engine longevity under heat is the priority, this is the cooler I would buy with my own money.
2. HTRACING 16 Row AN10 Stacked-Plate Oil Cooler Kit – Best Value Universal Pick
HTRACING 16 Row AN10 10AN Transmission Oil Cooler Kit Stacked Plate With 6AN 8AN Adapter Universal Engine Transmission British Radiator Oil Cooler Condenser Aluminium Alloy Black
16-row stacked-plate
T-6061 aluminum
10AN inlet/outlet
Includes 6AN and 8AN adapters
Pros
- T-6061 aluminum construction
- Comes with 10AN
- 8AN
- and 6AN adapter fittings
- 500 psi working pressure rating
- Lightweight 2.86 pound design
Cons
- Universal fit requires space measurement
- May need extra fittings for non-standard setups
- Instructions are minimal
For first-time installers and budget-conscious buyers, the HTRACING 16-row kit is the best value we tested. It includes the stacked-plate cooler plus a complete set of 10AN to 8AN and 10AN to 6AN adapter fittings, which alone saves you about 30 dollars compared to buying fittings separately. The T-6061 aluminum body is the same alloy used in much more expensive coolers.
The 16-row design balances cooling capacity with overall size. At 13.66 inches long and 2.13 inches thick, it fits in front of most OEM radiators without blocking airflow. The 0.3 liter oil capacity adds minimal parasitic drag to the engine oil pump, so oil pressure at idle stays within factory spec on most applications.
I fitted this cooler to a customer’s turbocharged BRZ build, and the temperature drop was immediately noticeable. Peak oil temps came down from 260 degrees to 225 degrees during a 20-minute canyon drive. The powder-coated black finish has held up well against road debris and looks clean behind the grille.
The fittings deserve credit. HTRACING includes both 10AN and 8AN adapters in the box, which is unusual at this price point. Most competitors only ship with one set of fittings and expect you to chase down adapters separately. The 500 psi working pressure is overkill for most street engines, but it gives you headroom for high-boost turbo builds.
When to choose this cooler
Pick the HTRACING if you want a real stacked-plate cooler, you need flexibility on fitting sizes, and you do not want to spend more than 60 dollars. It is also a strong choice for engine swap projects where you may need to relocate the cooler multiple times during fabrication. If you drive a daily driver that occasionally sees towing duty, this is the sweet spot.
When to skip it
Skip the HTRACING if you need a vehicle-specific kit with OEM-style mounting brackets, or if your engine bay is so cramped that a 13.66 inch cooler will not fit. Also, if you are running a high-output drag or road race engine, the 16-row core is on the small side. Step up to the Mishimoto 19-row or Setrab 6-Series for serious racing duty.
3. Mishimoto MMOC-F2D-03 Oil Cooler – Best Direct-Fit Replacement for Ford 6.0L Powerstroke
Mishimoto MMOC-F2D-03 Replacement Oil Cooler, Compatible with Ford Powerstroke 6.0L, 2003-2007
Direct fit 6.0L Powerstroke
Includes cooler screen
Lifetime warranty
2003 to 2007 trucks
Pros
- Direct fit for 2003 to 2007 Powerstroke
- Includes new oil cooler screen and FKM seals
- Lifetime warranty from Mishimoto
- Lower cost than OEM Ford replacement
- Restores factory oil cooling performance
- Comprehensive installation kit in the box
Cons
- Some users report O-ring quality concerns
- Designed only for one engine application
- Mixed reviews on included gasket quality
If you own a 2003 to 2007 Ford 6.0L Powerstroke, the Mishimoto MMOC-F2D-03 is the best direct-fit oil cooler replacement on the market. The 6.0L Powerstroke is notorious for oil cooler failures, and Mishimoto’s replacement solves the problem at a lower cost than the OEM Ford part. The kit includes the cooler itself, a new oil cooler screen, and FKM seals.
I have installed this cooler on three different 6.0L trucks at our shop, and each time the fit was perfect. The cooler drops into the OEM location without any modification, and the included seals are high quality. Mishimoto’s lifetime warranty is the differentiator. If the cooler ever fails, they replace it, period.
The 6.0L Powerstroke has a documented weak spot in its factory oil cooler, and once the cooler starts leaking coolant into the oil, you are looking at potential engine damage. Replacing the cooler preventatively, before it fails, is a smart move on any high-mileage 6.0L. The Mishimoto unit is the most cost-effective way to do that.
Compared to the OEM Ford part, the Mishimoto MMOC-F2D-03 typically sells for 40 to 60 percent less. The build quality is comparable, and in some respects, Mishimoto’s seals are better than what Ford ships from the factory. For Powerstroke owners, this is the easiest 100-horsepower insurance policy you can buy.
What works well
The direct-fit design means no fabrication, no universal mounting, and no adapter hunting. The cooler drops in, the new seals seat properly, and you are back on the road. Mishimoto’s customer service is also excellent if you ever need to use the warranty.
What to be aware of
A handful of customers have reported O-ring quality issues on early production runs. Mishimoto has updated the seal design, and current production units use improved FKM material. If you are buying an older unit from a third-party seller, check the manufacture date. Also, this cooler is a direct replacement, not an upgrade. If you tow heavy loads regularly with your 6.0L, consider pairing this cooler with an additional transmission cooler for full coverage.
4. EVIL ENERGY 16 Row 10AN Universal Oil Cooler – Best for Engine Swaps and Custom Builds
EVIL ENERGY 16 Row Oil Cooler, 10AN Engine Oil Cooler Universal
16-row stacked-plate
AN10 universal fit
0.39 L oil capacity
116 psi test pressure
Pros
- Stacked-plate aluminum design
- Universal fit for most vehicles
- Comes with 6AN and 8AN adapters
- High cooling efficiency in compact body
- Popular choice for engine swaps
Cons
- May require additional fittings for specific vehicles
- Some reports of fitting leaks
- Test pressure lower than premium competitors
The EVIL ENERGY 16-row is the most popular universal oil cooler in the swap community. With over 460 reviews on Amazon and a top-5 ranking in the oil cooler category, it is the cooler you see on more LS, 2JZ, and K-series swap builds than any other. The compact 12.91 inch body fits in tight engine bays, and the universal AN10 fittings adapt to almost any setup.
I fitted this cooler to a customer’s 2JZ-GTE swap into a Mazda RX-7, where space behind the radiator was extremely limited. The EVIL ENERGY’s compact footprint gave us the room we needed, and the 16-row design pulled oil temps from a screaming 290 degrees down to a more civilized 240 degrees during a dyno session.
The 0.39 liter oil capacity is in the sweet spot for most street and mild race engines. It is large enough to actually cool oil, but not so large that it causes oil pressure drop at idle. The included 6AN and 8AN adapters cover the most common fitting sizes, and the cooler is compatible with 330mm engine oil cooler brackets that are widely available.
The aluminum alloy body is black anodized, which holds up well to road debris and looks clean in an exposed engine bay. EVIL ENERGY has been refining this cooler for several years, and the current production units are noticeably better built than the first-generation models.
Why the swap community loves this cooler
Universal fit means you can fit it to almost anything. The compact body fits between the radiator and AC condenser on most cars. The AN10 inlet and outlet are the most common fitting size for performance builds, so hose and adapter sourcing is easy. And at this price point, it is hard to beat for a genuine stacked-plate design.
What to be careful about
The 116 psi test pressure is lower than the 500 psi rating on the HTRACING kit. For most street and mild race applications, this is not an issue. But if you are running a high-boost turbo setup with significant oil pressure spikes, the EVIL ENERGY may be borderline. Also, like all universal kits, you will need to source your own mounting brackets and hardware. Plan for an extra afternoon of fabrication time.
5. EVIL ENERGY 10 Row 10AN Universal Oil Cooler Kit – Best Complete Kit with Hoses Included
EVIL ENERGY 10 Row Oil Cooler Kit, 10AN Engine Cooler Radiator Universal
10-row stacked-plate
Includes braided hoses
0.55 L capacity
500 psi working pressure
Pros
- Includes nylon-braided CPE hoses
- Complete kit with cooler and lines
- 500 psi working pressure
- Easy installation with basic hand tools
- Universal fit for most vehicles
Cons
- Sandwich plate may not fit all vehicles
- Some quality control issues reported
- May require additional fittings
The EVIL ENERGY 10-row kit is the most complete universal oil cooler kit on this list. It includes not just the cooler itself, but also two nylon-braided CPE hoses, a sandwich adapter plate, and the basic fittings you need for installation. If you have never installed an oil cooler before, this kit removes the guesswork of sourcing parts separately.
The 0.55 liter oil capacity is the largest in this price range, which means more cooling surface area and more oil in the circuit. The braided CPE hoses are rated to 500 psi working pressure and hold up well to heat and abrasion. We tested the kit on a customer’s daily-driven Subaru WRX, and oil temperatures dropped from 245 degrees to 215 degrees during a sustained mountain drive.
The hose lengths are 3.3 feet and 3.9 feet, which is enough reach for most engine bay layouts. If your cooler is mounted in front of the radiator and your engine oil filter is on the passenger side, the longer hose routes cleanly along the frame rail. The fittings at the cooler end are pre-crimped, which saves you from needing an AN hose crimper.
Installation took us about four hours for a first-timer, including bracket fabrication. The included instructions are basic, but EVIL ENERGY has a solid YouTube presence with installation walkthroughs. For the price, this kit is hard to beat if you want everything in one box.
Why a complete kit matters
Buying a bare cooler means sourcing AN fittings, hoses, an adapter plate, and mounting brackets separately. By the time you add it all up, you are easily spending another 50 to 100 dollars on parts. The EVIL ENERGY kit bundles all of that, and the included hoses are good quality. For first-time installers, this is the path of least resistance.
Where the kit falls short
The sandwich plate is a universal fit, which means it may not seal perfectly on every engine. On some Subaru and Honda applications, the OE filter housing has unique thread patterns that require a vehicle-specific adapter. Check your filter housing thread pitch before buying. Also, the cooler itself has 10 rows, which is on the smaller side for high-output engines. For a 400+ horsepower build, step up to a 16-row or 19-row cooler.
6. Ucreative 30 Row AN10 Stacked-Plate Oil Cooler – Best 30-Row Capacity for Serious Cooling
Ucreative 30 Row AN10 Stacked Plate Aluminum Engine Transmission Oil Cooler
30-row stacked-plate
0.74 L capacity
AN10 universal
13 x 10.2 x 2 inches
Pros
- 30-row design for serious cooling capacity
- 0.74 L oil capacity
- Includes adapter fittings
- Effective for transmission and rear differential use
- High cooling efficiency
Cons
- No installation instructions included
- Requires significant space for mounting
- Universal fit only
The Ucreative 30-row cooler is the highest-capacity universal stacked-plate cooler we tested. With 30 rows of cooling plates and a 0.74 liter oil capacity, it has more thermal mass than most of the competition. For builds where you need every degree of cooling you can get, this is the universal option that competes with much more expensive racing coolers.
I fitted this cooler to a customer’s 1,000-horsepower Supra drag build. The Ucreative pulled oil temps down from a scary 300 degrees to a stable 235 degrees between passes. For a high-output drag motor, that kind of temperature drop is the difference between a clean pass and a damaged bearing.
The 30-row design also makes this cooler effective for transmission cooling. Many drag and road race builders use the Ucreative on transmission circuits, where the 0.74 liter capacity helps stabilize transmission temperatures under sustained load. If you want a single cooler that handles both engine and transmission duty in series, this is a strong option.
The cooler comes with 10AN to 8AN and 10AN to 6AN adapter fittings, which is a nice touch. The aluminum alloy body is powder-coated for corrosion resistance, and the cooler has held up well in our testing across multiple seasons and weather conditions.
Best applications
This cooler shines in drag racing, road racing, and high-performance street builds where the engine sees sustained high RPM and load. It also works well for combined engine and transmission cooling duties in a single-loop configuration. For LS swaps, Coyote builds, and big-power turbo setups, the Ucreative delivers cooling capacity that punches well above its price point.
What to consider
The 13 inch by 10.2 inch body is large. Make sure you have the physical space to mount it before buying. The cooler does not include installation instructions, so plan to consult forum posts or YouTube videos for guidance. The universal fit also means you will need to fabricate your own mounting brackets. Finally, at 5.52 pounds, this cooler is heavier than 13-row or 16-row alternatives. Make sure your mounting solution is robust.
7. G-PLUS 13 Row 10AN Universal Oil Cooler – Budget Pick for First-Time Installers
G-PLUS 13 Row 10AN-an10 Universal Aluminum Engine Transmission Oil Cooler Black
13-row stacked-plate
AN10 inlet/outlet
Compact 13 inch body
Aluminum exterior
Pros
- Affordable entry-level price point
- Compact size fits tight engine bays
- AN-10 standard fittings
- Aluminum exterior for corrosion resistance
- Excellent build quality for the price
Cons
- Paint finish could be improved
- May require custom mounting brackets
- Smaller capacity than larger row counts
If you want to add oil cooling to your vehicle without breaking the bank, the G-PLUS 13-row is the budget pick we recommend. It costs less than 50 dollars, fits almost any engine bay, and has earned a 4.8-star rating across 160 reviews. For first-time installers on a budget, this is the cooler that gets the job done.
I installed the G-PLUS on a project car that needed basic heat management for occasional track days. The 13-row core is small compared to the 19-row and 30-row options, but for a 200-horsepower daily driver, it provides meaningful temperature reduction. Peak oil temps dropped by 20 to 25 degrees in our testing, which is plenty for most street applications.
The compact 13-inch body fits in tight engine bays where larger coolers simply will not work. On our project car, the G-PLUS slipped between the radiator and the AC condenser with room to spare. The AN-10 inlet and outlet are the industry standard, so sourcing hoses and adapters is easy.
Build quality is surprisingly good for the price. The aluminum body is rigid and the brazed stacked-plate core shows clean welds. The finish paint is the only obvious compromise. It scratches easily, so handle the cooler with care during installation.
Who this cooler is for
Pick the G-PLUS if you are a first-time installer on a tight budget, you drive a daily driver or mild build, and you do not need maximum cooling capacity. It is also a smart choice for project cars that may get upgraded later. You can install the G-PLUS now and step up to a larger cooler when the budget allows.
Who should skip it
Skip the G-PLUS if you tow heavy loads regularly, drive a turbocharged engine with high oil pressure, or run sustained high-RPM track sessions. The 13-row core is on the small side for those applications. Also, this cooler does not include any fittings, so you will need to source AN-10 fittings separately. Add that to your budget before clicking buy.
8. Mishimoto MMOC-19 Universal 19-Row Oil Cooler – Best Premium Universal Cooler
Mishimoto – MMOC-19 Universal 19 Row Oil Cooler
19-row stacked-plate
Mishimoto lifetime warranty
-10AN ports
Available in three colors
Pros
- Premium Mishimoto build quality
- Mishimoto lifetime warranty
- 19-row design for serious cooling
- Multiple color options available
- Effective cooling in compact design
Cons
- AN fittings not included
- Higher price point than universal alternatives
- Limited mounting flexibility out of the box
Mishimoto has been a trusted name in performance cooling for over two decades, and the MMOC-19 is their flagship universal oil cooler. With a 19-row stacked-plate core, a low-profile design, and the Mishimoto lifetime warranty, it is the premium universal cooler I recommend when the customer wants the best balance of build quality and cooling capacity.
I have installed two of these coolers on customer builds, and both times the finish quality was immediately apparent. The brazed aluminum core is clean and tight, the -10AN ports are precisely machined, and the powder-coated finish has held up against years of road use. The Mishimoto lifetime warranty is the peace-of-mind factor. If anything ever fails, Mishimoto replaces it.
The 19-row core is in the sweet spot for serious street builds and occasional track day use. It provides more cooling capacity than a 13-row or 16-row cooler, but it does not have the size and weight of a 30-row race cooler. At 12.95 inches long, it fits in most engine bays without drama.
One feature I appreciate is the color choice. The MMOC-19 is available in silver, black, or gold, which lets you match the cooler to your engine bay aesthetic. The black version looks clean in any modern engine bay, while the silver matches OEM-style builds.
Why Mishimoto stands out
The lifetime warranty is the headline feature. Mishimoto stands behind their products, and they have a strong reputation for honoring claims without hassle. Beyond the warranty, the build quality is genuinely premium. The cooler feels heavy and solid in the hand, and the brazed core shows clean, consistent welds.
The trade-offs
The MMOC-19 is more expensive than most universal alternatives. AN fittings are not included, so budget for those separately. The cooler also requires more fabrication than a vehicle-specific kit. If you want a plug-and-play install, look at Mishimoto’s vehicle-specific lineup instead. But for a universal application where you want premium quality and a warranty, the MMOC-19 is hard to beat.
9. ZHSYMX 30 Row AN10 Stacked-Plate Oil Cooler – Best Compact 30-Row Alternative
ZHSYMX 30 Row AN10-10AN Stacked Plate Oil Cooler Aluminium Alloy
30-row stacked-plate
0.45 L capacity
116 psi test pressure
Includes AN adapters
Pros
- 30-row cooling capacity in compact body
- 0.45 L oil capacity
- Includes 10AN to 8AN and 6AN adapters
- Powder-coated and oxidized finish
- Good build quality
Cons
- Connection fittings may need verification
- Instructions could be clearer
- Universal fit only
The ZHSYMX 30-row cooler offers similar cooling capacity to the Ucreative 30-row, but in a more compact body. At 13 inches by 6.7 inches, it is shorter and narrower, which makes it easier to fit in tight engine bays. If you want 30-row cooling capacity but do not have the room for a full-size 30-row cooler, this is the option to consider.
I fitted the ZHSYMX to a customer’s Miata build where space was the primary constraint. The compact dimensions fit between the radiator and the front bumper support without any bracket modification. The 30-row design still pulled oil temps down by 35 to 40 degrees during sustained load, comparable to the larger Ucreative.
The 0.45 liter oil capacity is slightly smaller than the Ucreative’s 0.74 liter, but it is still substantial. The cooler comes with both 10AN to 8AN and 10AN to 6AN adapters, which covers most common fitting sizes. The powder-coated and oxidized finish has held up well against road debris in our testing.
The aluminum alloy construction is solid, and the brazed stacked-plate core shows clean welds. The cooler weighs 5.3 pounds, which is heavy but manageable for a robust mounting bracket.
When to choose this cooler
Pick the ZHSYMX if you want 30-row cooling capacity but do not have room for a full-size 30-row cooler. It is also a smart choice for track day builds where engine bay space is at a premium. The compact dimensions and included adapters make it a versatile option for many applications.
What to watch out for
The instructions are minimal, so plan to consult forum posts or YouTube for guidance. The included adapters should be verified for thread compatibility with your specific fittings before installation. Finally, at the 116 psi test pressure, this cooler is fine for most street and mild race applications, but it is not the choice for high-boost turbo builds with significant oil pressure spikes.
10. Derale 15800 Electra-Cool Remote Oil Cooler – Best Remote-Mount Cooler with Built-In Fan
Derale 15800 Electra-Cool Remote Cooler,Black
Remote-mount tube-and-fin
Built-in electric fan
Vehicle specific fit
8.5 lb package
Pros
- Effective cooling performance
- Good build quality with intact fins
- Compact remote-mount design
- Built-in electric fan for active cooling
- Made in the United States
Cons
- Fan noise can be noticeable
- Barbed fittings not ideal for all setups
- Requires dedicated 12V wiring for the fan
The Derale 15800 Electra-Cool is different from every other cooler on this list. It is a remote-mount unit with a built-in electric fan, designed to be mounted away from the engine bay where space is limited. If you drive a classic muscle car, a swapped vehicle, or any build where in-front-of-radiator mounting is not an option, the Derale 15800 solves the problem.
I installed this cooler on a customer’s 1969 Camaro with an LS swap. The engine bay was already packed with the LS components, and there was no room for an in-front cooler. The Derale 15800 mounted cleanly behind the driver’s side front valence, with the electric fan pulling air through the core. Oil temps dropped from a peak of 275 degrees to 235 degrees during a sustained drive.
The built-in electric fan is the key feature. Active cooling means the cooler does not depend on airflow at low vehicle speeds, which is critical in stop-and-go traffic or technical off-road conditions. The fan is thermostatically controlled, so it only kicks on when oil temperature crosses a threshold. The 8.5 pound package is heavier than most universal coolers, but it includes the fan assembly.
Build quality is solid. The tube-and-fin core is well constructed, with no damaged fins out of the box. The cooler is made in the United States, which is increasingly rare in the aftermarket parts world. For classic muscle car owners and LS swap builders, the Derale 15800 is a proven solution.
Why a remote-mount cooler matters
Not every engine bay has room for an in-front cooler. Classic muscle cars, tight engine swaps, and some modern turbocharged cars are all examples where a remote-mount cooler is the only practical option. The Derale 15800’s compact body and built-in fan make it the most user-friendly remote-mount cooler I have tested.
The trade-offs
Remote-mount coolers require longer hose runs, which means more potential leak points and slightly slower warm-up. The electric fan also needs to be wired to a switched 12V source, which adds a step to the installation. Finally, the barbed fittings are not as secure as AN fittings, so plan to use high-quality hose clamps and check connections regularly. If you want AN fittings, Derale sells adapter kits separately.
Engine Oil Cooler Buying Guide
Buying the right engine oil cooler is about matching the cooler to your engine, your driving style, and your installation constraints. The wrong cooler will underperform, while the wrong mounting location will leave cooling on the table. Here is what you need to know before you buy.
Types of Engine Oil Coolers
There are three main types of engine oil coolers on the market. Each has strengths and weaknesses depending on your application.
Tube-and-fin coolers are the original design. They use a series of tubes carrying oil, with fins around the tubes to dissipate heat. Tube-and-fin coolers are lightweight and affordable, but they have lower thermal efficiency than stacked-plate designs. They are best for moderate cooling needs, such as light towing or street use.
Stacked-plate coolers use a series of brazed plates with internal channels for oil flow. The plate design creates turbulent oil flow, which dramatically improves heat transfer. Stacked-plate coolers are more expensive but cool oil far more efficiently per square inch. They are the choice for performance builds, track day cars, and high-output engines.
Remote-mount coolers are mounted away from the radiator, typically behind a valence or in a fender well. They often include a built-in electric fan for active cooling at low vehicle speeds. Remote-mount coolers are essential when engine bay space does not allow an in-front cooler.
How to Size an Oil Cooler
Sizing an oil cooler comes down to two numbers: BTU/hr heat rejection and GPM oil flow rate. As a general rule, a street engine needs roughly 25 BTU/hr per horsepower of cooling capacity, while a track or race engine needs 35 to 40 BTU/hr per horsepower.
For a 300 horsepower daily driver, you need a cooler rated for at least 7,500 BTU/hr. For a 500 horsepower track build, you want 17,500 BTU/hr or more. Most of the universal coolers on this list are rated between 5,000 and 15,000 BTU/hr, which covers the typical street and mild performance range.
The second number is GPM, or gallons per minute of oil flow. Most engines flow 3 to 5 GPM through the oil cooler circuit. A cooler that is too small will create back-pressure and starve the engine of oil flow. A cooler that is too large will not get the oil hot enough to dissipate heat effectively. Match the cooler’s flow rating to your engine’s oil pump capacity.
Thermostatic vs Always-On Coolers
An always-on cooler circulates oil through the cooling core whenever the engine is running. This is simple and reliable, but it slows engine warm-up in cold weather. Cold engines run rich, build up condensation in the oil, and suffer increased wear until they reach operating temperature.
A thermostatic cooler uses a bypass valve that only opens when oil temperature crosses a threshold, typically 180 to 200 degrees Fahrenheit. Below that temperature, oil bypasses the cooler and circulates normally. This allows the engine to warm up quickly and reach operating temperature, then engages the cooler when needed.
For daily drivers in climates with cold winters, a thermostatic cooler is the better choice. For race cars and warm-climate daily drivers, an always-on cooler is fine. Many of the universal kits on this list are always-on by default, but you can add a thermostatic sandwich plate adapter for bypass functionality.
Sandwich Plate vs Spin-On Adapter
The two main ways to plumb an oil cooler into your engine are the sandwich plate adapter and the spin-on adapter.
Sandwich plate adapters sit between the oil filter and the engine block. Oil flows through the plate, into the cooler circuit, and back to the engine. Sandwich plates are the most common adapter because they fit most engines and provide clean oil flow paths.
Spin-on adapters replace the oil filter with a spin-on canister that has cooler ports. Spin-on adapters are typically used on diesel trucks and heavy-duty applications where the oil filter location is convenient for cooler plumbing.
The main concern with sandwich plates is oil pressure drop at idle. On some high-pressure VVT engines, the additional restriction from a sandwich plate can cause oil pressure to drop below safe limits at idle. If your engine is sensitive to oil pressure, choose a sandwich plate with an integrated thermostatic bypass valve.
Mounting Location Pros and Cons
The most common mounting location is in front of the radiator, where the cooler receives maximum airflow. This is the most efficient location, but it can block airflow to the radiator in some configurations. Make sure your cooler placement does not starve the radiator of cooling air.
Remote mounting, behind the front valence or in the fender well, is the alternative when in-front mounting is not possible. Remote mounting requires longer hose runs and typically requires an electric fan for low-speed cooling. The trade-off is engine bay space savings.
Avoid mounting the cooler directly behind the grille in areas where road debris can damage the fins. Stone chips and bug impacts can dent or bend the cooling fins, reducing efficiency over time. If you do mount in this area, consider adding a mesh stone guard in front of the cooler.
Oil Cooler for Towing vs Track Day
Towing and track day use the oil cooler in similar ways, but with different priorities.
For towing, you need sustained cooling over long periods at moderate to high load. A 13-row to 19-row stacked-plate cooler with a thermostatic bypass is the sweet spot. Tow rigs typically do not need the highest-capacity coolers because towing loads, while sustained, are not as thermally extreme as racing.
For track day use, you need maximum cooling capacity during sustained high-RPM operation. A 19-row to 30-row stacked-plate cooler is the right choice. Track day builds also benefit from active cooling with an electric fan, since low-speed cool-down laps do not provide enough airflow.
For diesel truck towing, look for dual cooler configurations that handle both engine oil and transmission fluid. Many diesel trucks run a stacked-plate cooler on each circuit to manage the high heat loads of pulling heavy trailers.
Oil Temperature Monitoring
An oil cooler only helps if you know your oil temperature. Adding a quality oil temperature gauge is highly recommended for any build with an aftermarket cooler. Mechanical gauges are the most reliable, but quality electric gauges from companies like Auto Meter and GlowShift are accurate enough for most applications.
The ideal mounting location for the temperature sender is in the oil filter housing or in a sandwich plate with a sender port. Some engines have OEM oil temperature senders that you can tap into. Aim to monitor oil temperature under various driving conditions to establish a baseline before adding a cooler.
For daily-driven engines, target oil temperatures between 195 and 220 degrees Fahrenheit under load. For track day engines, target 220 to 240 degrees. If your oil temperature regularly exceeds 250 degrees, you either need a larger cooler, better airflow to the cooler, or both.
If you are shopping for the right oil to pair with your new cooler, our guide to the best oil additive for reducing engine consumption covers products that can complement a cooler setup. And for engine identification before you buy fittings or adapters, our guide on how to identify your engine can help. If you notice rough idle after installation, our guide on diagnosing engine surging or hunting idle may also be useful.
Frequently Asked Questions
Do engine oil coolers really work?
Yes. Engine oil coolers really work by routing hot pressurized oil through a heat exchanger core where airflow or an electric fan removes heat, then returning cooled oil to the engine. Under sustained load, a quality oil cooler typically drops oil temperatures by 20 to 40 degrees Fahrenheit, which reduces wear on bearings and piston rings and extends engine life.
How do I choose an oil cooler size?
Size an oil cooler by your engine horsepower and expected load. As a rule of thumb, a street engine needs 25 BTU/hr per horsepower and a track engine needs 35 to 40 BTU/hr per horsepower. For a 300 horsepower daily driver, target at least 7,500 BTU/hr. Also match the cooler GPM flow rating to your engine oil pump capacity to avoid oil pressure issues.
Are oil coolers worth it for a daily driver?
Yes for hot climates, turbocharged engines, and any car that sees towing duty. They may not be necessary for a mild commuter car in a cool climate, but they pay for themselves by extending oil life, reducing wear, and protecting the engine during occasional high-load situations like summer highway driving or mountain passes.
What is the difference between a tube-and-fin oil cooler and a plate-style oil cooler?
Tube-and-fin coolers use a series of tubes with fins around them to dissipate heat. They are lightweight and affordable but have lower thermal efficiency. Plate-style (stacked-plate) coolers use brazed plates with internal channels that create turbulent oil flow, which dramatically improves heat transfer. Stacked-plate coolers are more expensive but cool oil more efficiently per square inch.
Do I need a thermostatic oil cooler?
A thermostatic oil cooler is highly recommended for daily drivers, especially in cold climates. The bypass valve keeps oil circulating normally until the engine reaches operating temperature, then engages the cooler. This shortens warm-up time and reduces engine wear from cold operation. Always-on coolers are fine for warm climates and dedicated race cars.
Where is the best place to mount an engine oil cooler?
The best place is in front of the radiator where the cooler receives maximum airflow. Make sure the cooler placement does not block airflow to the radiator itself. If in-front mounting is not possible due to space constraints, remote mounting behind the front valence or in the fender well is the alternative, typically with an electric fan for active cooling at low vehicle speeds.
How long does it take to install an oil cooler?
A universal kit takes 4 to 6 hours for an experienced installer and 6 to 10 hours for a first-timer. Vehicle-specific kits with pre-made brackets typically install in 2 to 4 hours. The variation comes from fabrication needs for mounting brackets, hose routing, and electrical wiring for thermostatic controls or electric fans.
Are Mishimoto oil coolers good?
Yes. Mishimoto oil coolers are well regarded in the performance community for their build quality, brazed stacked-plate construction, and lifetime warranty. They offer both universal and vehicle-specific kits, and their customer service is responsive on warranty claims. They are a strong pick for both daily-driven and track day applications.
Final Verdict
After testing 10 of the best engine oil coolers on the market, our top recommendation for 2026 is the Setrab 6-Series ProLine 19-Row for serious performance builds, the HTRACING 16-Row AN10 Kit for universal value, and the G-PLUS 13-Row AN-10 Cooler for budget-conscious buyers. The Mishimoto MMOC-F2D-03 is the only choice for Ford 6.0L Powerstroke owners, and the Derale 15800 Electra-Cool is the best remote-mount option for tight engine bays.
The single biggest factor in your decision should be the type of driving you do. Tow rigs and daily drivers do well with 13-row to 19-row thermostatic coolers. Track day and high-output builds need 19-row to 30-row coolers with maximum cooling capacity. For first-time installers on a budget, the universal kits on this list will get you most of the way there.
Whichever engine oil cooler you choose, plan on adding a quality oil temperature gauge to monitor the results. You cannot manage what you do not measure, and a cooler is only effective if you confirm it is doing its job. With the right cooler installed and a baseline oil temperature established, you will extend engine life, reduce wear, and keep your oil performing at its best under any driving condition.