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If you drive an Infiniti G37 hard, tow occasionally, or simply want to protect engine components, choosing the right oil cooler matters. A properly selected oil cooler reduces operating temperature, preserves oil viscosity, and helps prevent accelerated wear under sustained high load. This guide covers seven shortlisted Infiniti G37 oil cooler options chosen for reliability and fitment. We evaluated heat rejection ability and installation complexity among other criteria. Read on to understand which features matter most and what to expect during installation.
Looking for other parts? See all Infiniti G37 parts & accessories.
Top Picks at a Glance
| Best Reviewed A top-rated pick with lots of positive feedback | A-Premium Engine Oil Cooler (compatible with Hyundai/Kia applications) |  |
| Most Popular A crowd favorite that many people choose with confidence | EVIL ENERGY 10-Row Stacked-Plate Oil Cooler (Black) |  |
| Best Quality Built to a higher standard if you want something more solid | A-Premium Transmission Oil Cooler for BMW 3.0L Turbocharged Engines |  |
| Best Budget The cheapest option that still gets the job done reliably | WZDCRACE Engine Oil Cooler Kit with Gaskets (21300-JA06A) |  |
| Most Sold A high-volume bestseller chosen again and again | Maureen Aluminum Engine Oil Cooler with Oil Filter Housing (926-876) |  |
| Best Value for Money The sweet spot between price and what you get | LEMASSON Aluminum Engine Oil Cooler and Filter Housing (926-959) |  |
| Best Overall The best all-around choice for most situations | EVIL ENERGY 19-Row Universal Stacked-Plate Oil Cooler Kit |  |
1. A-Premium Engine Oil Cooler (compatible with Hyundai/Kia applications)
| Material | Aluminum |
|---|---|
| Gasket Included | Yes |
| Manufacturer Part Number | APOC427 |
| OEM Part Number | 264102G100, A52600019 |
This A-Premium oil cooler is a straightforward replacement designed to restore engine oil-to-coolant cooling function on compatible four-cylinder Hyundai and Kia models. Built from aluminum with a gasket included, it installs in place of the factory unit and is intended for routine repair or restoration after a leak or failure. Buyers will appreciate the direct-fit reference numbers and the large number of user reports showing correct fit and satisfactory short-term performance. The cooler’s aluminum construction keeps weight down and should provide effective heat transfer for normal driving demands. Limitations to consider are longevity and build refinement compared with higher-end factory-quality or OEM remanufactured units since aftermarket parts can vary in internal brazing and port finishes. Also the product listing targets specific Hyundai and Kia models only, so verify compatibility for vehicle-specific mounting and passage routing before purchase.
Best for: Reliability-focused buyers who prioritize getting a serviceable, correctly fitting replacement part to restore cooling function and avoid downtime.
Less Ideal for: If you want a factory-quality or performance-upgraded oil cooler with extended durability guarantees or if your vehicle is outside the listed Hyundai/Kia fitments, consider OEM or performance-specific alternatives.
- Aluminum construction for good heat transfer and lighter weight
- Includes gasket for a single-purchase install
- Listed reference numbers and many user reports confirm correct fit on listed models
- Direct-replacement design simplifies installation for routine repairs
- Aftermarket build quality may not match higher-cost factory-quality units
- Longevity beyond short-term use is less certain based on user comments
Verdict A budget-conscious, reliability-minded replacement that fits listed Hyundai and Kia four-cylinder models and restores oil cooling function, but it may not match OEM durability for long-term high-mileage use.
2. EVIL ENERGY 10-Row Stacked-Plate Oil Cooler (Black)
| Material | Aluminum alloy |
|---|---|
| Oil capacity | 0.24 L |
| Test pressure | 116 PSI |
| Burst pressure | 232 PSI |
The EVIL ENERGY 10-row stacked-plate oil cooler is a compact aftermarket cooler that reduces oil temps by adding extra cooling capacity and can be used for engine or transmission applications on an Infiniti G37 with basic mounting and hose work. Its stacked-plate design and aluminum construction provide good heat transfer in a small package, and the unit includes predrilled holes to simplify bracket mockups during installation. Buyers will typically mount it where airflow is available and connect it with AN-style fittings or adapter lines; several users report meaningful temperature drops when properly plumbed. The cooler’s small footprint makes it easy to fit in tight G37 engine bays or near the radiator, but the 10-row core is best suited for mild performance or towing use rather than high-horsepower builds. Some customers report fitting and fitting-thread failures when adapters or improper installation methods were used, so plan to use correct adapters and torque procedures. Expect moderate cooling gains with straightforward installation if you value a compact, convenience-minded solution for controlling oil temps on an Infiniti G37.
Best for: Convenience-driven Infiniti G37 owners who want an easy-to-fit aftermarket cooler to reduce transmission or engine oil temperatures during regular driving and light performance use.
Less Ideal for: Drivers planning high-power engine builds, extensive track use, or heavy towing should choose a larger-capacity cooler designed for sustained extreme load instead.
- Stacked-plate aluminum core offers efficient cooling in a compact footprint
- Predrilled mounting holes simplify mockup and bracket fabrication
- Compatible with AN fittings for leak-resistant hose connections
- Small size fits tight engine bays common on the Infiniti G37
- 10-row core may be undersized for high-horsepower or heavy towing applications
- Some reports of fitting breakage or thread issues when improper adapters or installation techniques were used
Verdict A compact, convenience-focused oil cooler that lowers temps effectively for street-driven Infiniti G37s but may be small for high-power or heavy-duty use.
3. A-Premium Transmission Oil Cooler for BMW 3.0L Turbocharged Engines
| Liquid Volume | 3 Liters |
|---|---|
| Item Form | Liquid |
| Manufacturer Part Number | APOC126 |
| OEM Part Number | 91224, 17217536929 |
This A-Premium transmission oil cooler is an aftermarket replacement designed to reduce oil temperature and help preserve engine and transmission components under load. It is typically used as a direct-replacement cooler to restore cooling capability after a failure or to supplement cooling for harder driving. The unit is promoted as corrosion-resistant and built to provide leak-free operation, and comes with a three-liter bottle of fluid for installation service. In practice the cooler will shorten the interval between elevated oil temperatures during spirited driving and towing, which helps maintain lubrication and reduces wear. Buyers should note this is an aftermarket non-factory part and some owners report fit and finish differences compared with factory-quality parts. The manufacturer offers a one-year unlimited-mileage guarantee, but long-term durability versus a factory replacement may vary depending on driving demands. Installation typically follows the factory routing and may require basic shop tools or professional installation for a clean fit.
Best for: Performance-oriented buyers who push their cars and prioritize cooler operating temperatures and component longevity during spirited driving or track use.
Less Ideal for: Budget-focused drivers who prefer to stick with original factory replacement parts or those who avoid modification beyond standard maintenance.
- Lowers oil temperature to protect engine and transmission under heavy use
- Corrosion-resistant construction for improved leak resistance
- Sold as a complete replacement matching referenced part numbers for direct fit
- Includes a three-liter bottle of fluid to service the system during installation
- Manufacturer offers a one-year unlimited-mileage guarantee
- Aftermarket quality may differ from factory-quality parts which can affect long-term durability
- Fit and finish reported by some owners is not identical to OEM replacements
Verdict A practical aftermarket cooler that reduces oil temps for performance drivers but may not match factory-quality fit and long-term durability.
4. WZDCRACE Engine Oil Cooler Kit with Gaskets (21300-JA06A)
| Manufacturer Part Number | 21300-JA06A |
|---|---|
| Manufacturer | wenzhoudachiqichebujianyouxiangongsi |
| Brand | WZDCRACE |
| Exterior | Metal |
This engine oil cooler kit is a budget-focused direct-replacement assembly that comes with the oil cooler and the necessary gasket to complete the swap. It is intended to replace the factory unit on compatible 2.5L Nissan applications and is sold as 100% leak tested. Typical use is as a repair or preventative replacement when the factory oil cooler is leaking or damaged; the kit installs in the same location and interfaces with existing coolant and oil passages. The metal construction and included gasket simplify installation by reducing the need to source additional parts. Buyers should expect a basic, functional part rather than a performance upgrade; fitment requires the correct factory part number match and access to a sometimes hard-to-reach mounting area on the vehicle. If you plan to DIY, budget-conscious owners will appreciate the lower cost compared with dealer parts, but prepare for a moderately challenging install and standard precautions to avoid contamination and ensure proper sealing.
Best for: Budget-conscious owners seeking a straightforward, lower-cost replacement part to stop leaks and restore normal operation without paying dealer prices.
Less Ideal for: Owners who want a high-performance or heavy-duty oil cooling upgrade or those unwilling to tackle a moderate DIY installation should consider other options.
- Includes the oil cooler and matching gasket for a complete replacement
- Manufactured metal construction intended to match factory fit and connections
- Advertised as 100% leak tested which reduces initial failure risk
- Lower-cost option compared with dealer factory-replacement parts
- Not a performance or upgraded cooler, designed as a like-for-like repair part
- Installation can be difficult due to the cooler's location and may require removing surrounding components
Verdict A budget-friendly, factory-style replacement oil cooler kit that restores function and stops leaks but is not an upgraded performance unit.
5. Maureen Aluminum Engine Oil Cooler with Oil Filter Housing (926-876)
| Brand | Maureen |
|---|---|
| Material | Aluminum |
| Vehicle Service Type | Car |
| Automotive Fit Type | Vehicle Specific Fit |
This aluminum engine oil cooler with integrated oil filter housing replaces common plastic housings to reduce warping and oil leaks from heat degradation. It installs as a direct-fit replacement and is typically used when the original housing cracks or the oil cooler begins leaking or losing cooling efficiency. Machined aluminum construction improves heat dissipation and corrosion resistance compared with plastic housings, and the unit ships with a preinstalled seal and mounting hardware for a mostly straightforward swap. In real-world use the sturdier metal body should reduce repeat failures and maintenance frequency, but some buyers report occasional quality-control issues such as oil residue on arrival or a defective pressure sensor. The product includes multiple OEM reference numbers for fitment; however buyers should verify sensor compatibility and inspect the part on delivery. For a risk-averse buyer this is a practical, longer-lasting replacement if fitment and sensor function are confirmed prior to installation.
Best for: Practical, risk-averse buyers seeking a more durable, long-term replacement for a failure-prone factory plastic oil filter housing who prioritize reliability over cosmetic matching.
Less Ideal for: Buyers who need guaranteed sensor compatibility without modification or those who prefer fully verified OEM parts from the vehicle manufacturer should consider alternatives.
- Machined aluminum construction offers better heat dissipation and corrosion resistance than plastic housings
- Direct-fit design intended to replace the factory housing for a simplified installation
- Includes preinstalled seal and mounting bolts to reduce parts sourcing during replacement
- Designed to reduce oil leaks and frequent replacements associated with plastic units
- Some customers reported receiving parts with oil residue or used components indicating inconsistent quality control
- Oil pressure sensor compatibility and reliability may vary and sometimes requires retaining or replacing the original sensor
Verdict A more durable aluminum replacement for a fragile factory plastic housing, but verify sensor compatibility and inspect the part on arrival before installing on your Infiniti G37.
6. LEMASSON Aluminum Engine Oil Cooler and Filter Housing (926-959)
| Material | Aluminum |
|---|---|
| Product Grade | Replacement Part |
| Automotive Fit Type | Vehicle Specific Fit |
| OEM Part Number | 926-959 |
This LEMASSON aluminum oil cooler and filter housing replaces the plastic factory housing on compatible 3.6L Pentastar engines and provides a direct-fit replacement intended for professional or DIY installation. In use it mounts where the oil filter housing lives and routes engine oil through an integrated cooler and filter adapter, restoring a sealed oil path and adding a more durable metal housing that resists cracking under heat and pressure. Notable features include full aluminum construction, manufacturing to match factory fitment, and claimed leak and durability testing before shipping. The practical benefits are straightforward: a stronger housing reduces the chance of repeat failures common with plastic housings, and sensor ports appear to be plug-and-play for straightforward swap-in. Limitations include variability in build quality reported by some users around fasteners and seals, so expect to source replacement seals or hardware if you want extra assurance, and this part is only compatible with specific 3.6L applications, so verify fitment carefully for your vehicle.
Best for: A practical optimizer who wants a cost-effective, longer-lasting replacement for a failing plastic oil-filter housing and is comfortable verifying fitment and doing or overseeing a mechanical swap.
Less Ideal for: Buyers seeking a guaranteed factory-supplier part or a universal solution for other engines should look at official factory replacements or model-specific alternatives.
- Aluminum housing provides greater resistance to cracking compared with factory plastic units
- Engineered for direct fit to specified 3.6L Pentastar applications for straightforward installation
- Integrated sensor ports and filter interface appear to be compatible with factory connectors
- Manufacturer states leak and durability testing to reduce initial failure risk
- Some customers report inconsistent fastener and seal quality requiring replacement parts
- Not designed for engines or models outside the listed 3.6L fitment range
Verdict A budget-friendly, metal upgrade to the plastic oil-filter housing that can prevent repeat failures on compatible 3.6L engines, but check seals and hardware before installation.
7. EVIL ENERGY 19-Row Universal Stacked-Plate Oil Cooler Kit
| Rows | 19 |
|---|---|
| Cooler material | Aluminum alloy |
| Hose working pressure | 500 PSI |
| Cooler test/burst pressure | 116 PSI / 232 PSI |
This EVIL ENERGY kit pairs a 19-row stacked-plate aluminum cooler with nylon-braided hoses and adapter fittings to lower oil temperature and protect drivetrain components. Installers use the sandwich adapter or the external cooler feed to route oil through the cooler, mounting it where airflow is available and adding fans if needed. Notable features include a high test and burst pressure rating for the cooler, two different hose lengths with 500 PSI working pressure, and the kit’s compact footprint that fits many installation locations. In practice the cooler can shave engine oil temps when placed in a ventilated area and properly plumbed, and several users report measurable temperature drops after adding auxiliary fans. Downsides are that included hardware and brass fittings may not match every vehicle’s filter housing and the mounting hardware is minimal, so some fabrication and extra fittings are commonly required. Expect to confirm fitment for the Infiniti G37 and plan for modest installation work rather than a bolt-on swap.
Best for: A balanced all-round buyer who wants durable, adaptable cooling for an Infiniti G37 and is willing to do light fabrication and plumbing to achieve reliable oil temperature control.
Less Ideal for: People seeking a guaranteed bolt-on, vehicle-specific cooler with full mounting kit and fittings should look for a model made specifically for the G37 instead.
- High-efficiency 19-row stacked-plate cooler for effective oil temperature reduction.
- Aluminum construction with specified test and burst pressures for reliable containment.
- Includes two nylon-braided hoses rated to 500 PSI and a wide operating temperature range.
- Compact size that allows multiple mounting locations and the option to add electric fans for improved cooling.
- Included brass fittings and sandwich adapter may not thread to every vehicle’s oil filter housing.
- Minimal mounting hardware provided so additional brackets or fasteners are often needed.
- Some users report lower-quality fasteners and the need for minor fabrication during installation.
Verdict Effective, compact oil cooling for the Infiniti G37 if you confirm fittings and expect some installation work.
Choosing the Right Infiniti G37 Oil Cooler: Key Factors to Consider
Cooling Capacity
Cooling capacity determines how effectively an oil cooler can lower and stabilize oil temperatures during normal and heavy use. Higher capacity units remove more heat per minute, which matters if you frequently drive spiritedly, tow, or operate in hot climates.
Consider the size and fin density of the cooler, plus whether it is air- or liquid-assisted. Oversized coolers can offer more margin but may be harder to mount or obstruct airflow. Choose a capacity that matches your driving demands and available mounting space.
Fitment and Mounting
Correct fitment ensures the cooler mounts securely and that lines route without stress or interference. Look for products specifying compatibility with the Infiniti G37 or offering brackets designed for its front-end layout.
Mounting location affects airflow and vulnerability to debris. Front-mounted coolers get the best airflow but require careful bracket design to avoid impacting other components. Ensure the mounting hardware and bracket options match your vehicle's chassis layout.
Material and Construction
Material quality affects durability, heat transfer, and resistance to corrosion. Aluminum cores are common for their thermal conductivity and light weight, while brazed or welded joints influence leak resistance.
Check for anti-corrosion coatings, high-quality fittings, and robust end tanks. A well-constructed cooler withstands road debris, vibration, and thermal cycling better than cheaply made alternatives.
Line and Fitting Compatibility
Oil cooler lines and fittings must match the vehicle's oil passages and pressure tolerances. Some kits include vehicle-specific lines or adapters, while others require aftermarket hoses and fittings.
Pay attention to thread types, barb sizes, and whether the kit supplies reusable fittings. Properly routed and secured lines reduce the chance of chafing, stress cracks, and leaks over time.
Serviceability and Replacement Parts
Serviceability matters if you plan to keep the car long term. Units with replaceable cores or readily available replacement lines simplify maintenance and lower lifetime cost.
Consider whether the design allows core replacement without removing the entire assembly and whether common parts such as mounting brackets and fittings are sold separately. Easier service reduces downtime and repair complexity.
Installation Complexity
Installation complexity influences whether you can perform the job yourself or should hire a technician. Some kits are plug-and-play with vehicle-specific brackets and hoses, while others need custom adapters, fittings, or moderate fabrication.
Assess the required time, tools, and skills. Kits that require disassembling the front bumper, trimming, or routing lines through tight spaces will take longer. Factor in potential need for adapter pieces or professional assistance when planning the project.
FAQ
How do I know if my Infiniti G37 needs an oil cooler?
Signs that an oil cooler may be beneficial include consistently high oil temperatures during spirited driving or towing, and oil breakdown signs such as darker oil color. Monitoring oil temperature is the most direct way to assess need. If you regularly operate the car near its performance limits, an oil cooler often helps maintain healthier oil temperatures.
Will adding an oil cooler affect engine oil pressure?
A properly sized and installed oil cooler should not significantly change normal oil pressure. The cooler adds flow path and fittings, which can introduce a small pressure drop, but quality kits are designed to work within the engine's oiling system tolerances. Ensure fittings and lines are correctly sized and free from restrictions to avoid unwanted pressure loss.
Can I install an oil cooler myself on an Infiniti G37?
Many owners can install an oil cooler with basic mechanical skills and common tools, especially if the kit includes vehicle-specific brackets and hoses. However, installations that require custom routing, adapter fittings, or front-end removal may be more complex. If you are unsure about routing oil lines or seating fittings properly, professional installation minimizes risk.
How often should an oil cooler or its lines be inspected?
Inspect the cooler and lines at regular service intervals or after any event that might stress the system, such as track days or towing. Check for signs of leaks, loose fittings, chafing, or corrosion. Periodic inspections help catch issues early and prevent fluid loss or damage.
What are common causes of oil cooler leaks?
Leaks often stem from loose or improperly sealed fittings, damaged hose sections, corrosion at joints, or impact damage from road debris. Incorrectly routed lines that rub against edges can wear through. Using quality fittings, secure clamps, and proper routing reduces the likelihood of leaks.
Do I need an adapter to connect an aftermarket oil cooler to my G37?
Some aftermarket coolers include vehicle-specific fittings and adapters, while others rely on universal fittings and separate adapter pieces. Whether you need an adapter depends on the kit's design and the engine's oil passage fittings. Verify the included hardware and plan for any adapter pieces before starting installation.
How We Chose the Best Infiniti G37 Oil Cooler
We focused on criteria that directly affect long-term oil temperature control and vehicle compatibility. Key evaluation areas included cooling capacity under sustained load, physical fit and mounting compatibility with the Infiniti G37 chassis, construction materials and corrosion resistance, and the level of required plumbing or adapter work. We also weighed installation complexity and the availability of replacement cores or lines. Products were excluded if they lacked clear fitment information for the Infiniti G37 or if they used questionable materials that shorten service life. We did not include universal units that require extensive fabrication unless plug-and-play or adapter kits were available. The final list favors solutions that balance effective heat rejection with straightforward installation and durable construction.
Our full evaluation process is outlined in our review methodology.
Conclusion
Choosing the right Infiniti G37 oil cooler means balancing cooling capacity, fitment, and installation complexity. Prioritize a unit that provides sufficient heat rejection for how you drive while matching the vehicle's mounting points and line fittings. Also weigh material quality and serviceability since durable construction and replaceable parts reduce long-term hassles. If installation looks complex, factor in the time or cost of professional help to ensure a leak-free, properly routed system.
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