Choosing the best oil cooler kit for air cooled motorcycles is essential for maintaining optimal engine temperatures, especially during long rides or in hot climates. The PowerMotor Universal Motorcycle Oil Cooler stands out for its versatility and broad compatibility, making it a top overall pick. For those seeking a budget-friendly option, the 65ml Motorcycle Engine Oil Cooler with Radiator System Kit offers decent cooling at a lower price point. Meanwhile, the Harley Touring Oil Cooler Radiator Kit is ideal for riders with Harley touring models who want a perfect fit and reliable performance. Each option presents tradeoffs: higher cooling capacity often means increased size and cost, while simpler setups may sacrifice some cooling efficiency. Keep reading to see a detailed breakdown of these picks and find the best fit for your motorcycle.
Key Takeaways
- Top picks balance cooling performance with ease of installation and compatibility.
- Larger radiator kits generally offer better cooling but can be more cumbersome and expensive.
- Universal kits provide versatility but may require custom fittings or modifications.
- Premium options tend to fit specific models perfectly, ensuring reliable performance and ease of use.
- Budget options can work well for casual riders but may lack durability or cooling capacity for demanding use.
| Motorcycle Engine Oil Cooler Radiator System Kit for CB CG 100CC-250CC (Black) |  | Best Overall for Small Engine Air-Cooled Motorcycles | Brand: Auttoop | Item Weight: 3.27 pounds | Package Dimensions: 10.12 x 6.1 x 3.54 inches | VIEW LATEST PRICE | See Our Full Breakdown |
| 65ml Motorcycle Engine Oil Cooler with Radiator System Kit for GY6 Engine (Silver) |  | Best Budget Pick for GY6 Engine Owners | Brand: Masyrt | Model: Masyrtd7950q8g1a-02 | Item Weight: 3.54 pounds | VIEW LATEST PRICE | See Our Full Breakdown |
| Oil Cooler Kit, Aluminum Alloy 5 Row Universal Engine Oil Cooler Cooling Radiator Replacement for Motorcycle Dirt Bike ATV Pit Bike, Silver |  | Best for Versatility and Heavy-Duty Use | Material: Aluminum Alloy | Number of Rows: 5 | Application: Motorcycles, Dirt Bikes, ATVs, Pit Bikes | VIEW LATEST PRICE | See Our Full Breakdown |
| Motorcycle Aluminum Oil Cooler Radiator Kit for Honda GY6 100CC-150CC |  | Best for Honda GY6 Owners Seeking a Reliable Upgrade | Fitment: Honda GY6 100CC-150CC | Material: Full copper hose adapter | Hose Pieces: 3-piece professional oil hose | VIEW LATEST PRICE | See Our Full Breakdown |
| Universal Motorcycle Oil Cooler Radiator for 50cc-140cc Pit Bikes and ATVs |  | Best for Broad Compatibility and Customization | Material: Aluminum alloy | Color: Red/Blue/Gold | Fitment: 50cc-140cc Chinese-made pit bikes and ATVs | VIEW LATEST PRICE | See Our Full Breakdown |
| Motorcycle Oil Cooler for 50cc-140cc Engines – Aluminum Radiator for ATV and Go Karts |  | Best for Small, Off-Road Engines | Size: Product length: 200mm; width: 42mm; installation spacing: 90mm | Material: Aluminum | Compatibility: 50cc to 140cc Chinese pit bikes, ATVs, go-karts | VIEW LATEST PRICE | See Our Full Breakdown |
| PowerMotor Motorcycle Engine Oil Cooler – Universal Cooling Kit for ATV, Pit Bike, Motorbike, Dirt Bike |  | Best for Versatile Small Motorcycle Cooling | Material: Aluminum | Compatibility: 70cc, 110cc, 125cc, 140cc engines | Application: ATV, Pit Bike, Dirt Bike | VIEW LATEST PRICE | See Our Full Breakdown |
| Motorcycle Radiator Oil Cooler Kit for Harley Touring 2017-2025 |  | Best for Harley Touring Enthusiasts | Compatibility: 2017-2025 Harley Touring with Milwaukee-Eight | Engine Type: Air/oil-cooled Milwaukee-Eight | Exclusions: Does not fit Twin-Cooled models | VIEW LATEST PRICE | See Our Full Breakdown |
| Aluminium Motorcycle Oil Cooler Radiator for Harley Touring Models (2017-2025), Black |  | Best High-Quality Aluminum Cooler for Harley Touring | Material: Aluminum alloy | Compatibility: Harley Touring 2017-2025 (excluding Twin-Cooled) | Weight: 11.2 ounces | VIEW LATEST PRICE | See Our Full Breakdown |
More Details on Our Top Picks
Motorcycle Engine Oil Cooler Radiator System Kit for CB CG 100CC-250CC (Black)
This kit stands out for its effective cooling tailored specifically to 100cc-150cc engines, making it the ideal choice for small motorcycle owners seeking to extend engine life without complicated setups. Compared to the aluminum-based Oil Cooler Kit, Aluminum Alloy 5 Row, this copper hose system offers superior durability and heat transfer, though it might be more challenging for those unfamiliar with copper fittings. Its full copper hoses ensure excellent thermal conductivity, which translates into noticeable performance improvements. Installation is straightforward for those with basic mechanical skills, but some may find it tricky without proper tools. The kit’s durable build and compatibility with small engines make it a reliable upgrade, especially for riders focused on longevity and performance. However, it’s not suited for larger engines or bikes that need a more universal fit, limiting versatility.
Pros:- Effective cooling improves engine performance and longevity
- Easy to install with included hoses and adapters
- Durable copper hoses with high thermal conductivity
Cons:- Limited compatibility to small engines (100cc-150cc)
- Installation may be challenging without proper tools
Best for: Owners of small, 100cc-150cc air-cooled motorcycles looking for a durable, effective cooling upgrade.
Not ideal for: Motorcycle enthusiasts with larger bikes or those requiring a universal solution, as this kit is optimized for small engines and may not fit all models easily.
- Brand:Auttoop
- Item Weight:3.27 pounds
- Package Dimensions:10.12 x 6.1 x 3.54 inches
- Compatibility:GY6 100CC-150CC engines
- Material:Full copper hoses
- Color:Black
Bottom line: This kit is a solid choice for small engine owners prioritizing durability and performance, provided they are comfortable with copper fittings.
65ml Motorcycle Engine Oil Cooler with Radiator System Kit for GY6 Engine (Silver)
Compared with larger, multi-row coolers, this 65ml GY6-specific kit offers a cost-effective way to reduce oil temperature quickly. It’s designed for simplicity, making it accessible for riders who want a quick upgrade without extensive modifications. While the small capacity limits cooling potential for prolonged high-stress riding, it excels at maintaining optimal temperatures during casual or moderate use. Its straightforward design and durable materials make installation manageable for most, but it’s restricted to GY6 engines, so compatibility is a key consideration. For owners of GY6-powered scooters or small bikes seeking an affordable cooling boost, this kit provides reliable performance without breaking the bank. However, riders with larger or more demanding bikes should look elsewhere for more capacity.
Pros:- Cost-effective way to improve engine cooling
- Easy to install and practical for daily use
- Durable, long-lasting materials
Cons:- Limited to GY6 engines, not universal
- Only 65ml capacity may not suffice for high-stress riding
Best for: Gyll6 engine owners needing a practical, low-cost cooling solution for moderate riding conditions.
Not ideal for: Owners of larger motorcycles or those with high-performance demands that require more substantial cooling capacity.
- Brand:Masyrt
- Model:Masyrtd7950q8g1a-02
- Item Weight:3.54 pounds
- Package Dimensions:11.42 x 7.87 x 3.94 inches
- Compatibility:GY6 Engine
- Color:Silver
Bottom line: This kit is best suited for budget-conscious GY6 owners seeking straightforward, reliable cooling for casual use.
Oil Cooler Kit, Aluminum Alloy 5 Row Universal Engine Oil Cooler Cooling Radiator Replacement for Motorcycle Dirt Bike ATV Pit Bike, Silver
This five-row aluminum cooler offers high cooling capacity, making it suitable for a wide range of motorcycles, dirt bikes, ATVs, and pit bikes. Its universal fit and robust aluminum construction allow it to handle demanding conditions, often outperforming smaller, single-row coolers used in more casual setups. While its effectiveness is impressive, installation can be complex, especially for riders unfamiliar with fitting multi-row radiators or modifying mounts. Its broad compatibility makes it an attractive choice for those with multiple bikes or seeking a durable, high-capacity upgrade. The main tradeoff involves potential installation difficulty and the need for some mechanical know-how. Overall, this cooler is ideal for riders who need reliable, heavy-duty cooling across different vehicles, but it may be overkill for casual riders or smaller bikes.
Pros:- High cooling capacity with 5-row design
- Universal fit across various motorcycle types
- Durable aluminum alloy construction
Cons:- Installation may require technical skill and modifications
- May not fit all models without adjustments
Best for: Experienced riders with multiple motorcycles, dirt bikes, or ATVs seeking a durable, high-capacity cooling solution.
Not ideal for: Beginners or riders with small, simple setups that require minimal installation effort, as this kit can be technically demanding.
- Material:Aluminum Alloy
- Number of Rows:5
- Application:Motorcycles, Dirt Bikes, ATVs, Pit Bikes
Bottom line: This cooler is well-suited for seasoned riders needing a heavy-duty, universal cooling solution for multiple vehicles.
Motorcycle Aluminum Oil Cooler Radiator Kit for Honda GY6 100CC-150CC
Designed specifically for Honda GY6 engines, this radiator emphasizes quick oil cooling and easy installation, making it a practical upgrade for owners of compatible models. Its copper hose adapter ensures durable heat transfer, comparable to the copper hoses of the Motorcycle Engine Oil Cooler Radiator System Kit for CB CG. While tailored for Honda GY6 engines, its limited compatibility means owners of other models should consider more universal options. The kit’s straightforward design and cost-effectiveness make it appealing, but it may require additional fittings for some bikes. For Honda GY6 owners prioritizing reliability and ease of installation, this radiator offers a dependable solution to manage engine heat efficiently.
Pros:- Effective at cooling Honda GY6 engines
- Durable copper hose adapter for longevity
- Easy to install and cost-effective
Cons:- Limited compatibility to Honda GY6 engines
- May need additional fittings for some models
Best for: Honda GY6 engine owners wanting a direct-fit, reliable oil cooling upgrade.
Not ideal for: Riders with non-GY6 engines or those seeking a universal cooler, as this is model-specific and may require additional modifications.
- Fitment:Honda GY6 100CC-150CC
- Material:Full copper hose adapter
- Hose Pieces:3-piece professional oil hose
- Weight:3.65 pounds
- Dimensions:7.87 x 3.74 x 1.77 inches
Bottom line: This radiator is ideal for Honda GY6 owners seeking a straightforward, reliable upgrade for engine cooling.
Universal Motorcycle Oil Cooler Radiator for 50cc-140cc Pit Bikes and ATVs
This universal radiator excels in versatility, fitting a wide range of Chinese-made pit bikes and ATVs with 50cc-140cc engines. Its aluminum alloy construction ensures high thermal conductivity, providing efficient cooling for various models, including brands like Kayo, Apollo, and Xmotos. The kit’s comprehensive package, including hoses, brackets, and bolts, simplifies installation for mechanically inclined riders, though explicit instructions are absent. This flexibility makes it a prime choice for those with multiple bikes or custom builds, but compatibility depends heavily on component sizes and mounting options. The multiple color options add aesthetic appeal, but riders should verify fitment before purchase. Overall, this cooler balances performance with adaptability, suitable for riders comfortable with a bit of mechanical work.
Pros:- Universal fit for a wide range of Chinese pit bikes and ATVs
- Effective cooling with high thermal conductivity aluminum alloy
- Includes comprehensive mounting and connection components
Cons:- Installation instructions are not included
- Compatibility depends on component sizing and mounting options
Best for: Experienced riders with Chinese pit bikes or ATVs seeking a universal, customizable cooling upgrade.
Not ideal for: Beginners or those with small, simple setups who prefer plug-and-play solutions, as installation can be complex and compatibility varies.
- Material:Aluminum alloy
- Color:Red/Blue/Gold
- Fitment:50cc-140cc Chinese-made pit bikes and ATVs
- Package Includes:Radiator, hoses, bracket, bolts
- Weight:2.6 pounds
- Dimensions:9.33 x 6.42 x 5.16 inches
Bottom line: This radiator is best for experienced riders who need a flexible, high-performance cooling solution across multiple vehicles, provided they are comfortable with installation details.
Motorcycle Oil Cooler for 50cc-140cc Engines – Aluminum Radiator for ATV and Go Karts
This compact oil cooler excels in off-road applications, especially for small engines in Chinese pit bikes, ATVs, and go-karts. Its lightweight aluminum construction and 4-layer heat dissipation system work together to maintain stable oil temperatures, which can help extend engine life during demanding off-road rides. Compared with larger motorcycle-specific coolers like the Harley models, this option is more limited in scope but offers excellent value for small engine enthusiasts. Its primary tradeoff is the need for careful size compatibility, as installation can be tricky if the dimensions don’t match perfectly. Still, for riders of small, off-road machines who prioritize simple, effective cooling without high cost, this cooler makes a strong case.
Pros:- Lightweight and durable aluminum construction
- Effective 4-layer heat dissipation system
- Compatible with a wide range of small engine models
Cons:- Installation requires precise size compatibility
- Limited to specific engine sizes and types
- No additional mounting hardware included
Best for: Small engine off-road riders needing reliable cooling for Chinese pit bikes, ATVs, and go-karts
Not ideal for: Owners of larger or street-focused motorcycles who require a more robust or integrated cooling solution
- Size:Product length: 200mm; width: 42mm; installation spacing: 90mm
- Material:Aluminum
- Compatibility:50cc to 140cc Chinese pit bikes, ATVs, go-karts
- Package Includes:1 Oil Cooler with heat dissipation
Bottom line: Ideal for small off-road machines where compact size and effective cooling are priorities, but less suitable for larger street bikes.
PowerMotor Motorcycle Engine Oil Cooler – Universal Cooling Kit for ATV, Pit Bike, Motorbike, Dirt Bike
This universal cooling kit is designed to fit a broad range of small motorcycles and ATVs, making it a flexible choice for riders who own multiple small bikes or need a straightforward upgrade. Made from durable aluminum, it improves engine cooling efficiency across 70cc to 140cc engines, comparable to specialized Harley coolers but with broader applicability. Its main advantage is ease of installation via a mounting bracket, though this may require some technical skill. The 90-day warranty is relatively short, which could be a concern for long-term durability. For those seeking a cost-effective, adaptable cooling solution that covers various small engine models, this kit offers a reliable option—just be prepared for potential installation challenges.
Pros:- Improves engine cooling efficiency
- Universal fit for multiple small motorcycle types
- Durable aluminum construction
Cons:- Installation may require technical skills
- Limited warranty period of 90 days
- Specific to certain engine models, not a universal solution for all bikes
Best for: Small motorcycle and ATV owners seeking a universal and affordable cooling upgrade
Not ideal for: Long-distance or high-performance riders needing a heavy-duty, long-lasting solution
- Material:Aluminum
- Compatibility:70cc, 110cc, 125cc, 140cc engines
- Application:ATV, Pit Bike, Dirt Bike
- Warranty:90 days
Bottom line: A flexible, budget-friendly cooler ideal for small bike owners wanting a universal upgrade, but less suited for high-mileage or high-performance applications.
Motorcycle Radiator Oil Cooler Kit for Harley Touring 2017-2025
This cooler is tailored specifically for Harley Touring models from 2017 to 2025 with Milwaukee-Eight engines, offering a high-performance upgrade for long-distance riders. Compared to the more universal options like the PowerMotor kit, this cooler provides a more integrated fit and potentially better cooling efficiency for Harley bikes. Its durable construction and corrosion-resistant materials support long-term use, crucial for riders who frequent extended trips. However, it’s not compatible with Twin-Cooled models or certain OEM covers, which limits its applicability. For Harley owners looking for a dedicated, high-quality cooling solution that enhances reliability on long rides, this cooler is a compelling choice.
Pros:- Perfect fit for specific Harley models
- Durable construction for long-lasting use
- Enhances engine cooling and performance
Cons:- Not compatible with Twin-Cooled models
- May require professional installation
- Limited to specific Harley models
Best for: Harley Touring riders seeking a tailored, high-quality cooling upgrade for Milwaukee-Eight engines
Not ideal for: Owners of Twin-Cooled Harley models or those with OEM covers incompatible with this kit
- Compatibility:2017-2025 Harley Touring with Milwaukee-Eight
- Engine Type:Air/oil-cooled Milwaukee-Eight
- Exclusions:Does not fit Twin-Cooled models
Bottom line: A specialized cooler that delivers excellent cooling for Harley Touring bikes, but only for certain model years and configurations.
Aluminium Motorcycle Oil Cooler Radiator for Harley Touring Models (2017-2025), Black
This high-strength aluminum alloy cooler combines durability with effective heat dissipation, specifically for Harley Touring models equipped with Milwaukee-Eight engines from 2017 to 2025. Its lightweight design (just 11.2 ounces) helps reduce overall bike weight, beneficial for long-distance comfort. The welding craftsmanship ensures a good seal, preventing oil leaks—a common concern with lower-quality welds. Compared to the radiator-style cooler for smaller bikes, this model emphasizes corrosion resistance and longevity, making it suitable for riders who want a robust upgrade. The main limitation is its narrow compatibility: it does not fit Twin-Cooled or certain OEM covers, which may restrict its use for some Harley owners. For those seeking a premium, reliable cooler that resists corrosion, this model is a solid choice.
Pros:- High-quality aluminum alloy construction
- Effective heat dissipation and corrosion resistance
- Lightweight design reduces bike weight
Cons:- Limited compatibility with certain Harley models and covers
- Designed specifically for non-Twin-Cooled engines
- Not a universal fit for all Harley models
Best for: Harley Touring riders wanting a durable, lightweight aluminum cooler for Milwaukee-Eight engines
Not ideal for: Harley owners with Twin-Cooled models or OEM covers incompatible with this cooler
- Material:Aluminum alloy
- Compatibility:Harley Touring 2017-2025 (excluding Twin-Cooled)
- Weight:11.2 ounces
- Dimensions:8 x 6 x 3 inches
Bottom line: A premium, corrosion-resistant cooler tailored for Harley Touring bikes that value durability and lightweight design, but with limited model compatibility.
How We Picked
These products were evaluated based on their cooling efficiency, build quality, ease of installation, compatibility with various air cooled motorcycle models, and overall value. We aimed to identify options that suit different rider needs—from casual cruisers to performance enthusiasts—by considering size, material quality, and user feedback. The rankings reflect a balance between performance and practicality, ensuring each pick addresses real rider priorities. Products with better durability, versatile fitment, and proven cooling effectiveness earned higher positions, while those with significant tradeoffs in size or cost were placed lower.Factors to Consider When Choosing Best Oil Cooler Kit For Air Cooled Motorcycles
Selecting the right oil cooler kit for an air cooled motorcycle involves more than just picking the biggest radiator. Riders should consider compatibility with their specific model, the cooling capacity needed, ease of installation, and the durability of materials. Proper sizing ensures effective cooling without excessive bulk, while universal kits offer flexibility but may require additional fittings. Also, pay attention to the quality of hoses and fittings to prevent leaks and ensure long-term performance. Balancing these factors can help prevent overheating, extend engine life, and improve ride safety.Compatibility and Fitment
Ensuring the oil cooler kit matches your motorcycle’s model and size is critical. Some kits are designed specifically for certain bikes, providing a straightforward install, while universal options require custom fittings or modifications. Misfit can lead to poor cooling performance or installation issues, so verify the product’s compatibility list and measure available space before purchase.
Cooling Capacity
The effectiveness of an oil cooler depends on its size and number of rows. Larger radiators with multiple rows generally dissipate heat more effectively, making them suitable for high-performance or heavily loaded engines. However, they can be bulkier and harder to fit, especially on smaller bikes. Consider your riding style and climate to choose a kit that prevents overheating without adding unnecessary weight or complexity.
Material Quality and Durability
Look for kits made of high-quality aluminum, which offers excellent heat conduction and resistance to corrosion. Cheaper plastic or thin metals may degrade quickly, leading to leaks or reduced cooling. Durability matters most if you frequently ride in harsh conditions or plan long-term use, so investing in a well-made kit can save money and hassle over time.
Ease of Installation
A straightforward, well-documented installation process is essential, especially for DIY enthusiasts. Kits with clear instructions, compatible fittings, and minimal additional parts reduce installation time and frustration. Universal kits may require extra fittings or brackets, so assess whether you’re comfortable with modifications or prefer a plug-and-play solution.
Cost and Value
While premium kits often deliver better cooling and fit, they come at a higher price. Budget options can be sufficient for casual riding but might lack long-term durability or cooling capacity. Consider your riding needs and budget carefully—sometimes investing a bit more ensures better performance and longevity, especially if you ride frequently or in demanding conditions.
Frequently Asked Questions
Will installing an oil cooler impact my motorcycle’s oil pressure?
Installing an oil cooler can slightly affect oil pressure, as it adds additional flow resistance in the system. However, most quality kits are designed to maintain proper oil flow and pressure levels. If your motorcycle has a sensitive oil pressure gauge or you’re concerned, consult the manufacturer’s specifications or a mechanic to ensure the cooler is correctly fitted and compatible with your engine’s oil system.
Is a universal oil cooler kit suitable for all air cooled motorcycles?
Universal kits offer broad compatibility and can fit many models, but they often require modifications or custom fittings. For specific models, a dedicated kit designed for that bike may offer a cleaner fit and easier installation. If you choose a universal option, be prepared to verify dimensions, fittings, and clearance to ensure it suits your motorcycle properly.
How often should I check the oil cooler and hoses for leaks?
Regular inspections are recommended every few rides or at least once a month, especially if you ride frequently or in rough conditions. Look for signs of leaks, corrosion, or loose fittings. Promptly addressing small leaks or damage can prevent larger issues, protecting your engine and ensuring the cooler functions effectively over time.
Can installing an oil cooler improve my engine’s performance?
Yes, an oil cooler helps maintain optimal engine temperatures, preventing overheating that can lead to performance drops or engine damage. Cooler oil maintains better lubrication and reduces wear, especially during high-stress rides. However, the cooling capacity must match your riding conditions; an undersized cooler won’t provide significant benefits, and overly large ones may add unnecessary weight.
Is it worth investing in a high-end oil cooler kit for a casual rider?
For casual riders or those riding in mild conditions, a basic or mid-range cooler may suffice, offering adequate cooling without a hefty price tag. High-end kits are more suitable for riders who push their bikes hard, ride in hot climates, or want maximum durability and performance. Weigh your riding habits and climate conditions to determine whether the additional investment aligns with your needs.
Conclusion
For most casual riders or those on a budget, the 65ml Motorcycle Engine Oil Cooler with Radiator System Kit provides a decent balance of cost and performance. Performance enthusiasts or riders in hot climates will benefit more from the PowerMotor Universal Motorcycle Oil Cooler for its larger capacity and versatility, while Harley owners should consider the dedicated cooling kits for a perfect fit. Beginners will find the straightforward installation of universal kits appealing, whereas experienced riders seeking durability should opt for premium, high-quality aluminum options. Matching your riding style, bike model, and climate conditions will help you select the best oil cooler kit for your motorcycle in 2026.
