Who makes radiators for Honda?
Honda does not rely on a single radiator maker; its radiators come from several Original Equipment suppliers depending on model and region, with Denso and Nissens among the commonly cited partners.
How Honda sources radiators
As of the latest information available, Honda contracts radiator production to a mix of global manufacturers. The exact supplier for a given vehicle is determined by factors such as model, generation, market, and production year. While Denso and Nissens are frequently associated with Honda cooling components, the full list of OEM partners can vary over time and across regions.
The following suppliers are commonly associated with Honda's radiator supply across various markets:
- Denso
- Nissens
In practice, the specific radiator installed in a particular Honda car is identified by the OEM part number and the production configuration for that model and market. Supplier assignments can change as contracts are renewed or updated for new generations.
Regional and model variations
Radiator sourcing can differ by region (North America, Europe, Asia) and by model (for example, popular passenger cars versus SUVs). Production plants in different regions may use distinct supplier arrangements based on logistics, capacity, and cost considerations. For owners and mechanics, the key is to verify the exact part with the vehicle VIN and the correct Honda part number.
OEM vs aftermarket
Original Equipment radiators are typically obtained through Honda’s contracted suppliers, ensuring a precise fit and specifications. Aftermarket radiators—produced by third-party manufacturers to Honda-style specifications—offer alternatives but may vary in build quality and warranty. When replacing a radiator, it’s important to choose a part that meets Honda’s specifications for the specific model and market.
What to check when replacing
When replacing a radiator, confirm that the part matches the vehicle’s model, year, engine, and region. Check the part number, core size, inlet/outlet orientation, mounting points, and compatibility with cooling fans and hoses. If in doubt, consult the service manual or a Honda-certified parts specialist to ensure proper fit and cooling performance.
Summary
Honda’s radiator supply is built on a multi-provider framework, with Denso and Nissens among the best-known OEM partners. The exact radiator supplier varies by model, year, and market, so the correct part should be verified via the vehicle’s VIN and official Honda part number. In repairs, buyers can opt for OEM parts through Honda channels or select high-quality aftermarket radiators that meet Honda’s specifications, with healthcare for proper fit and cooling performance as the guiding principle.
Who makes good aftermarket radiators?
The best aftermarket radiator brand depends on whether you need a replacement or a performance upgrade, but top contenders include Mishimoto, CSF, Koyorad, and Denso. Mishimoto is a strong choice for performance, while Denso is a popular option for quality OEM-style replacements. Other highly-rated brands like Spectra Premium and TYC are also reliable options for both replacement and performance parts.
This video discusses some top-performing radiators and cooling fans for different car models: 1mHardware CanucksYouTube · Jul 30, 2025
Performance and upgrade radiators
- Mishimoto: Considered a leader for performance upgrades, often featuring advanced designs like two-row or three-row cores for better cooling.
- Koyorad: Known for high-quality and durable alloy radiators, they have a large fitment list and are recognized for both performance and value.
- CSF Radiators: Has a long history in the aftermarket and is a well-regarded expert in the field, offering a range of options.
OEM-replacement and general use radiators
- Denso: Often recommended for those looking for high-quality, direct-fit replacements that perform like the original part.
- Spectra Premium: A reliable brand that offers a good balance of quality and price for a replacement radiator.
- TYC: A frequently recommended and reputable brand for both stock and upgraded radiators, known for quality and availability.
Other reputable brands
- Behr (Behr Hella Service): A trusted name in the industry, especially for European vehicles.
- Valeo: Another established manufacturer with a good reputation for quality parts.
- HongDao: A lesser-known brand that is still considered a high-quality option.
You can also watch this video to learn about the differences between expensive and budget radiators: 58sDonutYouTube · Aug 16, 2020
How to choose
- Consider your needs: If you want a performance upgrade for hard driving, look at brands like Mishimoto or Koyorad. For a reliable, cost-effective replacement, Denso, Spectra Premium, or TYC are excellent choices.
- Check compatibility: Always ensure the radiator is a correct fit for your specific vehicle make, model, and year, including noting whether your car is manual or automatic transmission, which affects radiator selection.
- Read reviews and warranties: Look for user reviews and check the warranty offered, as this can vary significantly between brands and product lines.
Who makes Honda's OEM parts?
A Honda OEM part is an Original Equipment Manufacturer part, which is designed and produced by Honda manufacturers.
Who makes OEM Honda radiators?
DENSO is a leading supplier of radiators to OE car makers around the world. Manufacturers rely on our quality and innovation to remain on the leading edge of engine cooling technology. Our OE experience and know-how ensure our products provide unmatched performance, reliability, and fitment.
How long do Honda radiators last?
Most auto mechanics feel that a properly maintained radiator should last for at least eight to 10 years.
