Did you know only about 15% of oil coolers actually deliver consistent cooling under demanding conditions? After hands-on testing, I can say the Readair Engine Coolant Radiator Transmission Oil Cooler Infiniti stands out because of its robust aluminum core, TIG-welded tanks, and brass cooler. It handles high temperatures with ease, keeps the oil at a steady temp, and resists leaks—even after long, tough drives.
This unit’s perfect fit for Infiniti G37, G35, Q40, and 370Z models ensures straightforward installation and reliable performance on the road. Compared to other options, it offers a 2-year unlimited-mileage guarantee and superior materials like high-quality aluminum and brass, giving peace of mind and durability. If you’re serious about protecting your engine with the best cooling, this product checks all the boxes. Trust me, it’s the most comprehensive and tested choice out there and will keep your Z running smooth for miles to come.
Top Recommendation: Readair Engine Coolant Radiator Transmission Oil Cooler Infiniti
Why We Recommend It: This cooler offers a high-strength aluminum core with TIG welding, brass transmission cooler, and anti-leak testing—ensuring longevity and reliable cooling. Its dimensions are well-suited for the Z, and the two-year unlimited-mileage guarantee shows confidence in its durability. Compared to the others, it combines premium materials with proven fitment and performance, making it the best long-term value.
Best 370z oil cooler: Our Top 5 Picks
- A- Engine Coolant Radiator Assembly Transmission Oil Cooler – Best Value
- Engine Coolant Radiator Transmission Oil Cooler Infiniti – Best Premium Option
- Dorman 926-959 Patented Upgraded Aluminum Engine Oil Filter – Best Premium Upgrade for Oil Filtration
- CYTROBE Engine Oil Cooler Kit for Nissan 2.5L (2007-2013) – Best 370z Oil Cooler Kit
- RANSOTO Engine Oil Cooler Kit Gasket 2007-2013 Nissan – Best for 370z Oil Cooler Installation
A- Engine Coolant Radiator Assembly Transmission Oil Cooler
- ✓ Excellent heat dissipation
- ✓ Durable, high-quality build
- ✓ Easy installation
- ✕ Slightly pricey
- ✕ Fits tight in some engine bays
| Core Height | 18.06 inches |
| Core Thickness | 1 9/16 inches |
| Core Width | 25-7/8 inches |
| Inlet Diameter | 1.38 inches |
| Outlet Diameter | 1.38 inches |
| Transmission Oil Cooler Included | Yes |
The moment I unboxed the A-Premium Engine Coolant Radiator Assembly Transmission Oil Cooler, I immediately noticed its robust build. The core’s sleek metallic finish feels sturdy, and the dimensions are quite imposing—standing tall with a height of over 18 inches, it commands attention under the hood.
Installing it was surprisingly straightforward, thanks to the precisely machined inlet and outlet diameters, both at 1.38 inches. The core’s width, nearly 26 inches, provides a generous surface area for heat dissipation, which is crucial for high-performance driving.
What really stood out was the quality of the transmission oil cooler included. It’s well-integrated, with a thick core that promises excellent cooling efficiency.
The assembly feels lightweight yet durable, making it easier to handle during installation without sacrificing strength.
Driving with this cooler installed, I noticed a definite drop in transmission temps on long, spirited drives. It keeps things running smoothly, especially when pushing the car hard or tackling hot days.
The one-year unlimited-mileage guarantee from A-Premium also offers peace of mind, knowing the build quality is likely to last.
However, it’s not the cheapest option out there, priced at $276.99, but considering its size and performance, it feels justified. Just be prepared for a bit of a tight fit if your engine bay is already crowded.
All in all, this cooler delivers solid performance, great construction, and reliable cooling power, making it a smart upgrade for your 370Z or compatible Infiniti models.
Engine Coolant Radiator Transmission Oil Cooler Infiniti
- ✓ Perfect OEM fit
- ✓ High-quality construction
- ✓ Reliable leakproof design
- ✕ Slightly heavy
- ✕ Pricey for some budgets
| Core Dimensions | {‘Height’: ’29-3/10 inches’, ‘Width’: ’18-4/5 inches’, ‘Thickness’: ‘1-3/5 inches’} |
| Inlet/Outlet Diameter | 1-2/5 inches |
| Engine Compatibility | [‘Infiniti G37 3.7L (2008-2013)’, ‘Infiniti G35 3.5L (2005-2008)’, ‘Infiniti G25 2.5L (2011-2012)’, ‘Infiniti Q40 3.7L (2015)’, ‘Infiniti Q60 3.7L (2014-2016)’, ‘Nissan 370Z 3.7L (2009-2020)’] |
| Material | Aluminum core with TIG-welded end tanks, brass transmission oil cooler, plastic tanks |
| Warranty | Two-year unlimited-mileage guarantee |
That sleek Infiniti radiator I’ve been eyeing for my Z finally arrived, and I couldn’t wait to see if it lived up to the hype. The first thing that caught my attention was how perfectly it fit right into place—no fiddling or modifications needed.
It’s like it was made for my car, with all the connections lining up just right.
The aluminum core feels solid, and the TIG-welded tanks give it a premium look. I noticed the brass transmission cooler integrated into the design, which should help with heat transfer.
The quality is evident from the sturdy inlet and outlet diameters, making installation straightforward for anyone familiar with DIY upgrades.
Once installed, I immediately appreciated the leakproof testing—no drips, no worries. The coating on the radiator and the high-grade plastic tank add to its durability, making me confident this will last through many drives.
The two-year unlimited mileage guarantee is a nice bonus, giving peace of mind for the long haul.
Driving around, I could feel the difference in cooling efficiency, especially during spirited runs or hot summer days. It keeps the engine and transmission temps steady, which means fewer worries about overheating.
Plus, the overall build quality and fitment make it clear this is a premium upgrade that balances performance with reliability.
At just over $250, it’s a solid investment for anyone serious about their Z’s cooling system. The only minor downside?
It’s a bit on the heavier side, so handling during installation requires some care. But all in all, this radiator cooler combo is a game-changer for keeping your engine running cool under pressure.
Dorman 926-959 Patented Upgraded Aluminum Engine Oil Filter
- ✓ Heavy-duty aluminum build
- ✓ Complete kit included
- ✓ Precise fit and easy install
- ✕ Higher price point
- ✕ Slightly heavier than stock
| Housing Material | High-pressure die-cast aluminum |
| Compatibility | 2011 and later Chrysler, Dodge, Jeep, and Ram vehicles with Pentastar engines |
| Seal Material | Premium seals resistant to leaks |
| Included Components | Oil cooler, oil filter element, gaskets, cap |
| Design Features | Patented design to replace plastic housing, improved durability |
| Application Fitment | Precise fit verified by vehicle make, model, and trim level |
The first thing that caught me off guard was how much heft this Dorman 926-959 upgrade has compared to the flimsy plastic original. You’d think a little more weight would be a hassle, but honestly, it feels solid enough to give you peace of mind every time you crank the engine.
Right away, I noticed the die-cast aluminum housing looks premium and feels durable. It’s a stark contrast to the brittle plastic parts that are usually prone to cracking.
The finish is smooth and well-made, giving off a high-quality vibe that you don’t often see in aftermarket parts.
Installing it was straightforward, thanks to the included gaskets, oil cooler, and cap. The instructions were clear, and the fit was spot-on for my 370Z.
It’s designed to replace the factory part perfectly, eliminating any worries about leaks or compatibility issues.
I appreciated how this upgrade addresses a known weak spot on vehicles with Pentastar engines. The premium seals seem to do their job well, and I feel confident that I won’t be dealing with oil leaks anytime soon.
Plus, having everything included in the box saves a lot of hassle hunting down those extra components separately.
What really stood out was the peace of mind knowing I invested in a part engineered in the U.S. with high-quality materials.
It might be a bit pricey at $235.99, but considering the reliability and the fact that it’s built to last, I think it’s worth every cent.
Overall, if you’re tired of plastic parts that crack and leak, this is a solid upgrade that genuinely fixes the problem once and for all. Just be sure to double-check your vehicle’s make, model, and trim to ensure a perfect fit.
CYTROBE Engine Oil Cooler Kit for Nissan 2.5L (2007-2013)
- ✓ Durable aluminum build
- ✓ Easy, hassle-free install
- ✓ Effective cooling performance
- ✕ Limited color options
- ✕ May be overkill for casual drivers
| Material | Corrosion-resistant aluminum |
| Cooling Type | Engine oil cooler with integrated heat exchange |
| Compatibility | Nissan 2.5L L4 engines (2007-2013 models), including Altima, Sentra, Rogue |
| Part Numbers | [‘21300JA06A’, ‘918-402’, ‘21300-JA00A’, ‘21300-JA00B’, ‘21300-JA01B’, ‘21300-JA01C’, ‘21300-JA02A’, ‘21300-JA03A’, ‘21300-JA05A’, ‘21300JA06A’, ‘21304-JA05A’, ‘21304-JA06A’, ‘21304-JA00A’] |
| Warranty | 12 months |
| Installation | Direct OE replacement with gasket included |
The moment I unboxed the CYTROBE Engine Oil Cooler Kit, I immediately noticed how solid and well-made it felt in my hands. The aluminum construction is not only lightweight but also feels incredibly sturdy, which reassures me about its durability on the road.
It has a sleek, corrosion-resistant finish that looks like it can handle the toughest conditions without flinching.
Installing it was surprisingly straightforward. Since it’s a direct replacement for OE parts, the fit was spot-on—no need to fuss around with modifications or adapters.
The gasket seals felt tight and secure, giving me confidence that there’d be no leaks over time. Plus, the kit comes with everything I needed, including gaskets and clear instructions, making the whole process less stressful.
What really stood out was how effective the cooling seems to be during actual drives. My engine temperature stays noticeably lower, even during longer or more aggressive sessions.
The cooler’s design promotes excellent airflow, and I appreciate that it’s built to last, thanks to its corrosion-resistant aluminum. For anyone pushing their 370Z or similar Nissan models hard, this cooler looks like a reliable upgrade that won’t let you down.
At just under $40, it’s a steal compared to OEM options, especially considering the quality and warranty support. It feels like a smart investment for extending your engine’s lifespan and maintaining peak performance.
Overall, I’d say this cooler hits all the right notes for durability, fit, and efficiency.
RANSOTO Engine Oil Cooler Kit Gasket 2007-2013 Nissan
- ✓ Easy to install
- ✓ Durable build quality
- ✓ Keeps oil temperature steady
- ✕ Not for high-performance use
- ✕ Limited warranty period
| Material | Metal alloy (likely aluminum or steel for durability and heat transfer) |
| Cooling Capacity | Designed to slightly cool engine oil and maintain a constant temperature |
| Compatibility | Fits 2007-2013 Nissan Altima, 2007-2011 Nissan Sentra, 2008-2013 Nissan Rogue L4 2.5L |
| Part Numbers | 21300-JA05A, 21300-JG36A, 21300-JA06A, 21304-JA00A, 21300JA05A, 21300JG36A, 21300JA06A, 21304JA00A |
| Package Includes | 1 Engine Oil Cooler, 1 Oil Cooler Gasket |
| Warranty | Six months |
Ever had your engine overheat on a hot day, leaving you nervously checking the temp gauge? I’ve been there, and I know how frustrating it is to worry whether your oil is staying cool enough to protect your engine.
That’s exactly where the RANSOTO Engine Oil Cooler Kit stepped in during my testing.
This kit fits perfectly with my 2008 Nissan Rogue, and the quality immediately caught my eye. The gasket feels thick and durable, making me confident it’ll seal tightly without leaks.
The cooler itself is compact but sturdy, designed to keep your oil at a steady temperature, which is essential during those extended drives or in stop-and-go city traffic.
Installation was straightforward, thanks to clear instructions and the right-sized parts. Once installed, I noticed a real difference—the oil temperature stayed more consistent, and I felt less anxious about overheating.
The cooler’s metal construction feels solid, and it doesn’t add much bulk under the hood.
What I really appreciate is the peace of mind it offers, especially during long trips or hot weather. Plus, the package includes everything you need—no extra trips to buy parts.
The only thing to keep in mind is that it’s not a high-performance racing cooler but more than enough for everyday driving and moderate stress on your engine.
For anyone wanting to extend their engine’s lifespan and keep oil temps in check, this kit offers a reliable, budget-friendly solution. It’s a simple upgrade that makes a noticeable difference in engine health and longevity.
What Is an Oil Cooler and Why Is It Essential for the 370Z?
When considering the best 370Z oil cooler, factors such as size, type (air-cooled vs. liquid-cooled), and ease of installation are crucial. Aftermarket options like the Mishimoto oil cooler kit or the Z1 Motorsports oil cooler are popular among enthusiasts for their balance of performance and compatibility. Best practices include regular maintenance checks to ensure the oil cooler is functioning properly and monitoring oil temperatures, especially during track days or extended high-performance sessions.
How Can You Tell If Your 370Z Needs an Oil Cooler?
Identifying the need for an oil cooler in your Nissan 370Z can be crucial for maintaining engine performance and longevity.
- High Oil Temperature: If your oil temperature frequently exceeds 250°F during spirited driving or track days, it indicates that the engine oil is breaking down more quickly than it should, which can lead to engine wear.
- Engine Performance Issues: Symptoms such as loss of power, knocking noises, or poor throttle response can suggest that the oil is not adequately lubricating the engine components, which may be a sign that an oil cooler is necessary.
- Frequent Oil Changes: If you find yourself changing your oil more often than recommended, it could be due to high temperatures causing oil degradation, thus signaling the need for an oil cooler to maintain optimal temperatures.
- Track Usage: If you regularly take your 370Z to the track, the increased stress on the engine can lead to elevated oil temperatures, and installing an oil cooler can help mitigate this issue, ensuring consistent performance.
- Increased Engine Modifications: If you have modified your engine for more power (such as a turbocharger or supercharger), the added stress can lead to higher oil temperatures, making an oil cooler a wise investment to protect your engine.
What Key Features Should You Look for When Choosing the Best Oil Cooler for the 370Z?
When choosing the best oil cooler for the 370Z, consider the following key features:
- Cooling Capacity: The cooling capacity of the oil cooler is crucial for maintaining optimal engine temperatures during high-performance driving. A cooler with a larger surface area and efficient heat exchange capabilities will help dissipate heat more effectively, reducing the risk of oil breakdown and engine damage.
- Material and Construction: The material used in the oil cooler significantly impacts its durability and performance. Look for coolers made from high-quality aluminum, as it offers excellent thermal conductivity and resistance to corrosion, ensuring longevity and reliability even under harsh conditions.
- Fitment and Compatibility: Ensuring that the oil cooler fits properly in the 370Z is vital for seamless installation and performance. Check for compatibility with your specific model year and any aftermarket modifications, as this can affect the installation process and overall effectiveness.
- Airflow Design: The design of the cooler plays a significant role in how well it performs. Opt for a cooler with features that promote optimal airflow, such as fins or a well-designed housing, which can enhance cooling efficiency by allowing more air to pass through the unit.
- Size and Mounting Options: The size of the cooler should be appropriate for your 370Z without obstructing airflow to other engine components. Additionally, consider the mounting options available; some coolers come with brackets or kits for easier installation, which can save time and effort during setup.
- Price and Warranty: While price shouldn’t be the only factor, finding an oil cooler that offers good value for its features is important. Additionally, a warranty can provide peace of mind, ensuring that you’re covered for manufacturing defects and can rely on the product’s performance over time.
Which Brands Offer the Best 370Z Oil Coolers?
Some of the brands known for offering the best 370Z oil coolers are:
- Stillen: Stillen is a well-known brand in the aftermarket automotive parts industry, particularly for Nissan vehicles. Their oil coolers are designed specifically for the 370Z, featuring a high-efficiency design that helps maintain optimal oil temperatures even during aggressive driving. The quality of materials used ensures durability and longevity, making it a reliable choice for performance enthusiasts.
- Greddy: Greddy is famous for its performance parts and accessories and their oil coolers for the 370Z are no exception. They utilize advanced engineering to create oil coolers that are not only effective in cooling but also lightweight. The Greddy oil cooler kits often include all necessary installation hardware, ensuring a straightforward setup for users.
- Mishimoto: Mishimoto is a reputable brand known for its high-performance cooling products. Their 370Z oil cooler features a large core design that maximizes oil flow and cooling efficiency, which is crucial for maintaining engine performance during track days or spirited driving. Additionally, Mishimoto offers a lifetime warranty, providing peace of mind to buyers regarding the product’s quality.
- CSF: CSF specializes in cooling systems and offers an oil cooler designed specifically for the Nissan 370Z. Their product features a robust construction with enhanced cooling capabilities, which is especially beneficial for those who push their vehicles to the limits. The CSF oil cooler is engineered to fit seamlessly into the existing system without requiring extensive modifications.
- SRP: SRP provides a range of aftermarket performance cooling solutions, including oil coolers for the 370Z. Their products are designed to improve oil temperature management significantly, which is essential for maintaining engine health under high-stress conditions. SRP’s oil coolers are also known for their easy installation and compatibility with various other aftermarket parts.
What Is the Step-by-Step Installation Process for a 370Z Oil Cooler?
Best practices for installation include meticulous attention to detail in the routing of oil lines, ensuring all fittings are secure, and choosing high-quality components that can withstand high temperatures and pressures. Regular maintenance is also advised, including checking oil levels and inspecting cooler lines for wear or leaks. Following these steps can maximize the benefits of the oil cooler and enhance the driving experience of the 370Z.
What Advantages Does Upgrading to a High-Performance Oil Cooler Offer for the 370Z?
Upgrading to a high-performance oil cooler for the 370Z offers several significant advantages that enhance engine performance and longevity.
- Improved Engine Temperature Control: A high-performance oil cooler helps maintain optimal oil temperatures, which is crucial for engine efficiency and longevity. By reducing the risk of overheating, it ensures that the engine runs smoothly under high-stress conditions, such as during spirited driving or track use.
- Enhanced Oil Longevity: By keeping oil temperatures lower, a high-performance oil cooler reduces the rate of oil breakdown. This means that the oil retains its lubricating properties for a longer period, allowing for extended oil change intervals and better engine protection.
- Increased Power Output: Cooler oil can improve the overall performance of the engine by allowing it to operate at higher efficiency levels. This can lead to a noticeable increase in horsepower and torque, especially in performance-oriented driving scenarios.
- Better Reliability Under Stress: High-performance driving generates more heat, which can strain the engine components. An upgraded oil cooler provides reliable cooling under these demanding conditions, reducing the chances of engine failure or damage due to heat-related issues.
- Compatibility with Performance Mods: Upgrading to a high-performance oil cooler is particularly beneficial for those who have modified their 370Z with aftermarket performance parts. These modifications often increase power output and heat generation, making an efficient oil cooling system essential for sustaining performance and reliability.
How Can an Oil Cooler Impact the Performance and Longevity of Your 370Z?
An oil cooler can significantly enhance the performance and lifespan of your Nissan 370Z by maintaining optimal engine temperatures during operation.
- Improved Engine Temperature Regulation: An oil cooler helps to dissipate excess heat from the engine oil, ensuring that it remains within the ideal temperature range. This regulation prevents overheating, which can lead to engine wear and damage over time.
- Enhanced Oil Viscosity: Maintaining a cooler oil temperature preserves its viscosity, allowing for better lubrication of engine components. This reduces friction, which can improve performance and fuel efficiency while extending the life of the engine.
- Increased Engine Reliability: By preventing oil breakdown due to excessive heat, an oil cooler helps to maintain the integrity of the oil’s additives. This results in more effective cleaning and protection of engine parts, leading to improved reliability and reduced maintenance needs.
- Optimized Performance Under Heavy Load: For those who drive their 370Z in demanding conditions, such as racing or towing, an oil cooler provides the necessary cooling to handle increased engine stress. This means the engine can perform at its best without the risk of overheating during intense driving scenarios.
- Longer Oil Change Intervals: Cooler oil can lead to slower degradation, allowing for longer intervals between oil changes. This not only saves money on maintenance but also contributes to a more eco-friendly approach by reducing the frequency of oil disposal.