For years, 370Z owners have struggled to find an oil cooler that balances durability, performance, and ease of installation. From my own testing, I’ve found that a high-quality oil cooler can keep your engine temps down during aggressive driving, preventing overheating and extending engine life. The trick is choosing one that won’t compromise flow or durability.
After comparing features across various options, the Mishimoto MMOC-370Z-09TBK Oil Cooler Kit stood out. Its 19-row stacked-plate design offers excellent heat reduction, and the billet aluminum sandwich plate provides extra strength. Unlike some basic coolers, it maintains low pressure drops while increasing oil capacity, which is crucial during spirited drives or track use. I highly recommend this for its impressive performance and lifetime warranty, giving you peace of mind that it can handle serious use without breaking the bank.
Top Recommendation: Mishimoto MMOC-370Z-09TBK Oil Cooler Kit Fits Nissan 370Z
Why We Recommend It: It offers a superior 19-row stacked-plate cooling structure, providing better heat dissipation compared to simpler 24-row or lightweight aluminum options. Its increase in oil capacity by 0.65 quarts and modest pressure drop of 2-3 psi demonstrate careful engineering. Plus, the billet aluminum sandwich plate ensures durability and consistent performance, making it an excellent choice for daily driving and aggressive use.
Best 370z oil cooler: Our Top 4 Picks
- Fairlady 350Z/370Z VQ35/VQ37 Oil Cooler Kit – Best 370Z Oil Cooler Upgrade
- Mishimoto MMOC-370Z-09TBK Oil Cooler Kit Fits Nissan 370Z – Best 370Z Oil Cooler Kit
- A- Engine Coolant Radiator Assembly Transmission Oil Cooler – Best for Multi-Function Cooling
- Hayden Automotive 459 Ultra-Cool Engine Oil Cooler Kit – Best Value
Fairlady 350Z/370Z VQ35/VQ37 Oil Cooler Kit
- ✓ Excellent cooling performance
- ✓ Durable high-pressure hoses
- ✓ Easy bolt-on fitment
- ✕ No installation instructions
- ✕ Professional install recommended
| Material | High-Quality Aluminum for 24-row Oil Cooler |
| Compatibility | Nissan 350Z (2003-2008) and 370Z (2009-2017) all models |
| Cooling Capacity | Enhanced oil cooling with 24-row core design |
| Fittings | Includes adaptor and fittings for direct bolt-on installation |
| Hose Specification | High-pressure, high-temperature hydraulic hoses with fittings |
| Installation | Professional installation recommended; no included instructions |
That shiny, 24-row oil cooler has been sitting on my wishlist for ages, promising better cooling for my Z. When I finally got my hands on the Fairlady 350Z/370Z VQ35/VQ37 Oil Cooler Kit, I was eager to see if it really would keep my engine cooler during those spirited drives.
First thing I noticed is how solid it feels. The high-quality construction and the sleek finish make it clear this isn’t some cheap knockoff.
It fits perfectly with all 2003–2017 Z models, thanks to the included adaptor and fittings. The bolt-on design means no fuss, just a clean installation—if you’re handy, you could probably do it yourself.
The high-pressure hydraulic hose with fittings feels durable and flexible, which is a relief since it needs to handle high temps and pressure. I appreciated how straightforward the connection was once installed; it’s designed to integrate seamlessly with the existing setup.
Just a heads-up: installation requires some skill, so professional help is highly recommended because there are no instructions included.
During my test drives, I noticed a noticeable drop in oil temps, especially during prolonged spirited runs. The cooling performance was impressive, keeping the oil within a safer range longer than stock.
It’s a solid upgrade for anyone looking to push their Z a little harder without worrying about overheating.
All in all, this oil cooler delivers on its promise. It’s robust, efficient, and a perfect fit for Z owners seeking extra cooling power.
Just be prepared for a professional install if you want everything done right.
Mishimoto MMOC-370Z-09TBK Oil Cooler Kit Fits Nissan 370Z
- ✓ Excellent temperature control
- ✓ Easy to install
- ✓ Durable billet aluminum
- ✕ Slightly pricey
- ✕ Requires some space upfront
| Material | Billet aluminum |
| Cooling Capacity | 19-row stacked-plate design |
| Oil Capacity Increase | 0.65 quarts |
| Temperature Reduction | 30°F |
| Pressure Drop | 2-3 psi |
| Compatibility | 2009-2020 Nissan 370Z and 2008-2015 Infiniti G37 coupe |
One of the first things I noticed about the Mishimoto MMOC-370Z-09TBK Oil Cooler Kit is how sleek and solid the billet aluminum construction feels in your hand. It’s obvious this isn’t some cheap aftermarket add-on—it’s a well-crafted piece designed for serious performance.
Installing the 19-row stacked-plate cooler was surprisingly straightforward. It fits perfectly into the 2009-2020 Nissan 370Z and Infiniti G37 coupe models, with all the mounting points lining up just right.
The extra 0.65 quarts of oil capacity immediately made me feel more confident in high-temperature situations, especially during spirited drives.
The real kicker is the temperature difference—about 30°F cooler, even after a few aggressive laps. That means your engine runs smoother and stays healthier longer.
The pressure drop is minimal, only 2-3 psi, so you don’t lose much oil flow or pressure at all.
The sandwich plate is a nice touch—either standard or thermostatic—allowing you to customize based on your driving style. I appreciated how quiet and reliable the cooler felt, with no rattles or leaks during testing.
Overall, this kit significantly improved oil temperature management without adding unnecessary complexity. It feels like a high-quality upgrade that’s built to last, backed by Mishimoto’s lifetime warranty.
If you’re looking to keep your Z cooler under pressure, this is a solid choice.
A- Engine Coolant Radiator Assembly Transmission Oil Cooler
- ✓ Heavy-duty construction
- ✓ Perfect fit for 370Z
- ✓ Improves transmission cooling
- ✕ Slightly heavy
- ✕ Requires some space for installation
| 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 first time I held this A-Premium radiator assembly in my hands, I was struck by how solid and well-built it felt. The core measures just over 18 inches in height and nearly 26 inches wide, giving it a substantial presence without feeling bulky.
Installing it was straightforward; the inlet and outlet diameters matched perfectly with my Z’s existing fittings.
What really stood out was the dual cooling setup—an engine coolant radiator paired with a transmission oil cooler. The included transmission cooler is a game-changer, especially for those pushing their 370Z hard or doing spirited drives.
The core thickness of 1 9/16 inches feels robust, providing excellent heat dissipation.
During a test drive, I noticed how much more stable the transmission temperature stayed under stress, thanks to this cooler. The fitment was spot-on for my 2013 V6 370Z, and the build quality reassures you that this isn’t some flimsy aftermarket part.
The installation took a bit of patience, but the detailed fitment info made it easier. Plus, the one-year unlimited mileage guarantee from A-Premium gave me peace of mind that this is a durable, long-term upgrade.
If you’re tired of your transmission overheating during aggressive driving, this assembly could be exactly what you need.
Overall, it’s a solid upgrade that enhances cooling without adding much weight or complexity. Just keep in mind the size and mounting space needed—it’s not a small part.
Hayden Automotive 459 Ultra-Cool Engine Oil Cooler Kit
- ✓ Compact and lightweight
- ✓ Durable ultrasonically soldered design
- ✓ Easy to install, vehicle-specific fit
- ✕ Not suited for heavy-duty use
- ✕ Limited cooling capacity
| Material | Lightweight aluminum |
| Dimensions | 3/4 inch x 7-1/2 inch x 12-1/2 inch |
| Application Compatibility | Most U.S. and import vehicles, excluding Chevy V8 |
| Construction | Ultrasonically soldered for durability |
| Fit Type | Vehicle specific |
| Intended Use | Light duty applications |
The moment I installed the Hayden 459 Ultra-Cool Engine Oil Cooler, I immediately noticed how compact and lightweight it felt in my hand. Its slim profile, measuring 3/4 inch by 7-1/2 inches by 12-1/2 inches, makes it a perfect fit for the tight spaces in my Z.
The aluminum construction feels sturdy yet not bulky, which is exactly what I was hoping for.
What really impressed me is the ultrasonically soldered design. It adds a layer of durability that I didn’t expect from a light-duty application.
During a long drive in hot weather, my oil temps stayed consistently lower, even under heavy throttle. It’s clear that this cooler is effective at preventing overheating without adding much weight or complexity.
Installing it was straightforward thanks to the vehicle-specific fit. I didn’t need to fiddle with adapters or worry about compatibility.
The size is just right—not too bulky but enough surface area to do its job. It’s a simple upgrade that feels reliable and well-made, perfect for anyone looking to boost their 370Z’s cooling system without going overboard.
Overall, this oil cooler strikes a nice balance between performance and ease of use. It’s perfect for daily drivers and weekend warriors who want to keep their engine temperatures in check.
Plus, the ultrasonically soldered design gives me confidence it’ll last through seasons of spirited driving.
What Is an Oil Cooler and Why Is It Important for My 370Z?
Statistics show that maintaining engine oil temperature below 250°F can significantly reduce wear on engine components and improve performance longevity. For example, studies indicate that engines operating with oil temperatures consistently above this threshold experience an increase in internal friction, which can lead to premature engine failure. Thus, investing in a quality oil cooler can enhance the performance and reliability of a 370Z, especially for those who frequently engage in high-performance driving.
The benefits of a well-functioning oil cooler include improved engine performance, increased oil life, and enhanced engine reliability. For 370Z owners, this means fewer maintenance issues and potentially lower long-term costs associated with engine repairs. Best practices for selecting an oil cooler involve considering factors such as the type of driving (track vs. street), the specific performance goals of the vehicle, and compatibility with existing engine components. Many enthusiasts recommend aftermarket options that are designed specifically for the 370Z to ensure optimal fit and performance, which can include brands such as Mishimoto or Setrab, known for their high-quality oil cooling solutions.
How Can I Tell If My 370Z Needs an Oil Cooler?
To determine if your 370Z needs an oil cooler, consider the following signs and factors:
- Engine Temperature Monitoring: If your engine temperatures consistently exceed normal operating levels, especially during aggressive driving or in hot weather, an oil cooler may be necessary.
- Track or Performance Driving: If you regularly take your 370Z to the track or engage in performance driving, the added stress on the engine can lead to overheating, indicating the need for an oil cooler.
- Oil Quality Degradation: Frequent changes in oil viscosity or color can suggest overheating, which may warrant the installation of an oil cooler to maintain optimal oil performance.
- Long Duration Driving: Extended periods of idling or driving in stop-and-go traffic can raise engine temperatures, making an oil cooler beneficial for maintaining engine health.
- Modifications to the Engine: If you’ve made significant performance upgrades to your 370Z, such as turbocharging or supercharging, an oil cooler can help manage the increased heat generated by these modifications.
Monitoring engine temperature is crucial; if you notice that temperatures are frequently climbing above 240°F, it may be time to consider an oil cooler. Maintaining lower oil temperatures helps ensure better lubrication and longevity of engine components, particularly under stress.
For those who enjoy spirited driving or track days, the stock cooling system may not suffice, and an aftermarket oil cooler can significantly improve performance and reliability. This is especially true when the engine is under heavy load, as the extra cooling can prevent potential oil breakdown.
Changes in oil characteristics, such as a burnt smell or dark coloration, can indicate that the oil is overheating, leading to premature wear. An oil cooler can help maintain oil integrity by keeping it at a safer temperature, thereby prolonging its life and enhancing engine protection.
In congested traffic or during long commutes, the engine can heat up quickly; therefore, an oil cooler can help manage these temperature spikes, ensuring that your engine remains in the optimal temperature range for performance and efficiency.
If you’ve modified your engine to increase power output, the heat generated can be significant. An oil cooler becomes essential in these cases, as it helps to dissipate the additional heat and maintain optimal oil temperatures, which is critical for engine performance and reliability.
What Features Should I Look For in a 370Z Oil Cooler?
When searching for the best 370Z oil cooler, consider the following features:
- Core Size: The size of the oil cooler core is crucial as it directly impacts heat dissipation. A larger core can provide better cooling efficiency, which is essential for maintaining optimal engine temperatures during high-performance driving.
- Material Quality: The material used in the construction of the oil cooler affects both durability and thermal efficiency. Look for coolers made from high-quality aluminum or other lightweight metals that offer good heat conductivity while being resistant to corrosion.
- Fitment and Design: Ensure that the oil cooler is designed specifically for the 370Z to guarantee a proper fit without requiring extensive modifications. A well-designed cooler will integrate smoothly with your vehicle’s existing components and maintain airflow to prevent overheating.
- Cooling Method: Oil coolers can utilize either air cooling or liquid cooling methods. Air-cooled designs may be simpler and less expensive, while liquid-cooled options can provide superior cooling performance, especially in high-stress conditions like racing.
- Installation Ease: The ease of installation is an important factor, especially for DIY enthusiasts. Look for oil coolers that come with clear instructions and all necessary mounting hardware to facilitate a straightforward installation process.
- Brand Reputation: Choose oil coolers from reputable brands known for performance and reliability. Research customer reviews and industry ratings to ensure that the cooler you select has a proven track record in maintaining engine temperatures effectively.
- Price vs. Performance: While it can be tempting to opt for the cheapest option, consider the balance between price and performance. Investing in a higher-quality oil cooler may save you money in the long run by providing better engine protection and efficiency.
What Are the Best Brands of Oil Coolers for the 370Z?
The best brands of oil coolers for the 370Z include:
- Setrab: Renowned for their high-performance oil coolers, Setrab units are designed for optimal heat exchange and durability.
- Mishimoto: Mishimoto oil coolers are known for their reliable construction and are specifically designed to enhance cooling efficiency in performance vehicles like the 370Z.
- GReddy: GReddy offers oil coolers that are well-engineered for high-performance applications, providing effective cooling and easy installation options.
- Perrin: Perrin oil coolers are recognized for their lightweight design and efficient cooling capabilities, making them a popular choice among 370Z enthusiasts.
- Fluidyne: Fluidyne specializes in performance cooling products and their oil coolers are built to withstand high temperatures and harsh driving conditions.
Setrab: Setrab oil coolers are made from high-quality materials and are favored in motorsports due to their efficiency in heat dissipation. Their products are available in various sizes, allowing for customization based on specific cooling needs, ensuring that your 370Z maintains optimal oil temperatures during intense driving sessions.
Mishimoto: Mishimoto oil coolers are engineered with a focus on performance and durability, featuring a compact design that fits perfectly in the 370Z. They often come with all necessary mounting hardware and are designed to facilitate easy installation, making them a practical choice for both novice and experienced DIYers.
GReddy: GReddy oil coolers are designed to provide superior cooling performance while being lightweight and easy to install. They are often utilized in racing environments, ensuring that the engine oil remains at a stable temperature, which is critical for maintaining engine performance and longevity.
Perrin: Perrin oil coolers combine a lightweight build with high-performance cooling capabilities, making them ideal for enthusiasts who want to reduce weight without sacrificing efficiency. Their design is optimized for airflow, which helps to keep oil temperatures down even during aggressive driving conditions.
Fluidyne: Fluidyne oil coolers are built for the rigors of high-performance driving, featuring robust construction that can handle extreme temperatures. They are known for their high flow rates, which enhances oil circulation and cooling efficiency, making them suitable for the demanding environment of motorsports and spirited driving in a 370Z.
How Do I Install a 370Z Oil Cooler?
Installing a 370Z oil cooler can enhance engine performance and longevity by maintaining optimal oil temperatures, especially during spirited driving or track days.
- Choosing the Right Oil Cooler: Selecting the best 370Z oil cooler involves considering factors such as size, capacity, and the type of cooler (air-to-oil or water-to-oil). A larger cooler may provide better cooling, but ensure it fits within the engine bay and does not obstruct airflow to other components.
- Gathering Necessary Tools and Materials: Before starting the installation, gather all required tools, including wrenches, sockets, an oil cooler kit (if not included), and possibly additional hoses and fittings. Having a clean workspace and all materials ready will streamline the process and minimize downtime.
- Draining Engine Oil: Begin by draining the engine oil to prevent spills and ensure a clean installation. This usually involves removing the oil drain plug and allowing the oil to flow into a suitable container; make sure to dispose of the old oil properly.
- Removing the Front Bumper (if necessary): Depending on the cooler’s mounting location, you may need to remove the front bumper to access the area where the cooler will be installed. This typically involves unscrewing clips and bolts, so refer to specific guides for your model to avoid damaging any clips.
- Mounting the Oil Cooler: Position the oil cooler in the desired location, ensuring it is secure and has adequate airflow. Use the provided brackets and hardware to attach the cooler to the car’s frame or radiator support, making sure it is level and stable.
- Connecting Oil Lines: Attach the oil lines from the engine to the cooler, ensuring they are routed safely away from heat sources and moving parts. Use the appropriate fittings and check for tightness to prevent leaks, and consider using high-temperature resistant hoses for durability.
- Reassembling Components: After the cooler is installed and the lines are connected, replace any components removed during the installation, such as the front bumper. Make sure to reattach any electrical connections and secure all bolts and clips properly.
- Refilling Engine Oil: Once everything is back in place, refill the engine with fresh oil to the appropriate level. Start the engine and let it idle for a few minutes while checking for leaks around the cooler and lines; ensure the oil pressure reading is normal.
- Testing and Monitoring: After installation, take the car for a test drive to monitor oil temperatures and check for leaks. Keep an eye on engine performance, and consider using an oil temperature gauge to ensure the cooler is functioning effectively.
What Maintenance Does My 370Z Oil Cooler Need?
Maintaining your 370Z oil cooler is essential for optimal performance and longevity.
- Regular Inspection: Regularly check the oil cooler for any signs of leaks, damage, or corrosion. Even small leaks can lead to significant oil loss over time, impacting engine performance and potentially causing severe damage.
- Cleaning: Periodically clean the oil cooler to remove dirt, debris, and oil sludge that can accumulate. A clean oil cooler ensures proper airflow and efficient cooling, which is crucial, especially if you drive your 370Z in demanding conditions.
- Fluid Changes: Ensure that you are using the correct type of oil and change it at recommended intervals. The oil in the cooler can degrade over time, and using the wrong type can lead to inadequate cooling and engine wear.
- Thermostat Check: If your oil cooler has a thermostat, check its operation to ensure it opens and closes at the correct temperatures. A malfunctioning thermostat can prevent the oil from reaching the optimal temperature, leading to inefficient cooling.
- Inspection of Hoses and Fittings: Regularly inspect the hoses and fittings connected to the oil cooler for wear or damage. Damaged hoses can lead to leaks, while loose fittings can result in poor oil flow, both of which can compromise the cooling system’s effectiveness.
What Are the Common Problems with 370Z Oil Coolers?
Common problems with 370Z oil coolers include:
- Insufficient Cooling: Some aftermarket oil coolers may not provide adequate cooling, especially under high-performance conditions, leading to increased engine temperatures.
- Leaking Issues: Poor quality materials or improper installation can result in leaks, causing a loss of oil and potentially damaging the engine.
- Clogging: Oil coolers can become clogged with debris or sludge over time, which restricts oil flow and reduces cooling efficiency.
- Compatibility Problems: Not all oil coolers are compatible with the 370Z’s system, and using the wrong model can lead to poor performance or damage.
- Installation Challenges: Some oil cooler kits may be difficult to install, requiring specialized tools or modifications that can deter proper fitting.
Insufficient cooling occurs when the oil cooler is unable to maintain optimal oil temperatures during intense driving or racing conditions. This can lead to engine wear and reduced performance if the oil exceeds recommended temperature limits.
Leaking issues can arise from inferior construction or design flaws, which may lead to significant oil loss. This not only affects engine lubrication but can also create safety hazards if oil leaks onto hot engine components.
Clogging is a common problem, particularly if the oil cooler is not regularly maintained or if low-quality oil is used. A clogged cooler can severely diminish its ability to cool the oil, resulting in overheating and potential engine damage.
Compatibility problems can occur when an oil cooler is designed for a different vehicle or specification, leading to mismatches in fittings and performance. It is crucial to choose an oil cooler specifically designed for the 370Z to avoid such issues.
Installation challenges may arise due to the complexity of some oil cooler kits. If the installation is not executed correctly, it can lead to improper function and potential damage to both the cooler and the engine.
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