Asked Questions


Do you ship internationally?


What method of shipping do you use?

All Mishimoto orders are shipped via UPS.

How much does shipping cost?

Shipping costs will vary based on your location and shipping method. To best determine shipping costs, add the items into your shopping cart and proceed to checkout. You can check the shipping options and costs before finalizing your checkout.

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Can I return my item?

Yes, you can return your item up to 14 days after receiving it. All returns must be unopened and uninstalled.

How do I return my item?

First fill out the form on our contact us page with your order number to request a return authorization. Once you receive it, you will be asked to ship the item back to Mishimoto. Customers are responsible for return shipping.

Do you charge a restocking fee?

Yes, we charge a 12% restocking fee on all returned orders.

How long does it take to receive a refund?

Once we receive your return, we will refund you within five business days.

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What types of payment do you accept?

Visa, Mastercard, Discover, American Express, and Paypal

Is it safe to shop on this site?

Yes. is hosted on the Magento eCommerce platform. Magento is safe and secure. You can shop with confidence knowing that Magento and Mishimoto will never sell or use your information for any other purpose than to process your order.

Can I order by phone?

Absolutely. Call us toll-free at 1.877.GOMISHI and we will be happy to place your order for you.

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Does Mishimoto offer a warranty on its products?

Mishimoto offers a Limited Lifetime Warranty from the date of purchase. This plan includes accident protection. We stand behind our products with a 100% satisfaction guarantee.

Can you make a one-off custom product for me?

Sorry, at this time we are unable to manufacture any custom products.

You don’t make something for my car! What gives?

We’re always expanding our product lines. Please fill out our contact us form with a product request, and we might just make it!

Why should I substitute my original radiator for a Mishimoto aluminum radiator?

In two words - engine overheating. Mishimoto aluminum radiators provide an added level of cooling capacity that stock radiators simply cannot deliver. This maximizes your engine’s efficiency and keeps your engine cool throughout the hottest conditions. And don't forget about appearance! Mishimoto radiators have either a polished or brushed natural aluminum finish and high-quality welds that enhance the appearance of your engine bay.

What type of finish is applied to Mishimoto radiators?

The end and coolant tanks on all Mishimoto radiators have either a polished chrome or brushed natural aluminum finish.

Will Mishimoto radiators fit my OEM vehicle application?

Yes. Mishimoto radiators are designed for a direct fit on OEM applications to upgrade the cooling system.

How many cores do Mishimoto radiators have?

Mishimoto radiators vary from single, dual, or triple core, depending on the application.

Will Mishimoto radiators work with my automatic transmission?

All Mishimoto radiators are designed for manual transmission vehicles unless stated otherwise. However, many automatic vehicles can use a Mishimoto radiator with the simple addition of a universal Mishimoto Transmission Cooler Kit .

How do I know if a Mishimoto radiator is cooling my vehicle properly?

Before installing your Mishimoto radiator you will need to know your car’s current engine operating temperature while idle and at highway speed. Most users report a 20-40 degree reduction in temperature from their baseline readings.

How does the price of a Mishimoto radiator compare to that of other performance radiators?

Mishimoto radiators are much more affordable than those of our competitors. Despite this lower price point, you can be confident knowing that each Mishimoto radiator is carefully crafted with extremely high-quality standards, and they are pressure tested twice for maximum reliability.

What makes Mishimoto radiators perform better than the OEM cooling system?

Mishimoto radiators are made with two or three rows of high-quality aluminum, which allows all parts of the radiator, including the tanks, to dissipate heat. Also, the cooling fins are designed for maximum heat dissipation. The coolant tubes on Mishimoto radiators have greater surface areas for improved cooling over stock OEM radiators. Additionally, Mishimoto radiators have more coolant capacity than OEM applications.

Why does Mishimoto recommend electronic cooling fans?

Mishimoto electric fans offer a slimmer and more efficient cooling source as compared with OEM fans. Electric fans move more cubic feet of air per minute (CFM) than standard engine driven (mechanical) fans that come on most vehicles. At idle and low speeds, a mechanical fan slows down as the engine’s rpm decreases, causing a reduction in airflow. In comparison, electric fans maintain a consistent speed regardless of the engine’s rpm, resulting in increased cooling at idle and low speeds. Benefits of Mishimoto electric fans are often seen in cars with added horsepower.

How do you properly mount an electric fan?

Mishimoto offers fan shrouds for certain vehicles, as well as universal fan mount kits with online installation guides for your reference. Using a fan wiring kit and a brass sensor for your water coolant temperature, you can wire a relay to turn on the fan at 195 degrees and off at 175 degrees. Alternatively, you can use an adjustable fan wiring kit.

Should I mount my electric fan in front of or behind the radiator?

If space permits, it is always better to have your fan operate as a puller by mounting it on the water pump side of the radiator. A puller electric fan is approximately 15% more efficient than the same fan operated as a pusher.

Are Mishimoto radiators epoxy-free?

Yes. Mishimoto radiators cores are made with controlled atmosphere brazing and are leak tested twice to guarantee an excellent tube-to-header bond. This eliminates the need for any epoxy.

What grade of aluminum is used in Mishimoto radiators?

Every Mishimoto radiator is constructed of carefully processed aircraft-quality aluminum.

How thick are the coolant tank walls on Mishimoto radiators?

The coolant tank walls are approximately 2mm thick.

How thick are Mishimoto radiator cores?

The core size for each Mishimoto radiator varies by vehicle application. Product details are available online.

Do Mishimoto radiators come with caps?

All Mishimoto performance aluminum radiators come with a Mishimoto radiator cap, unless the radiator does not use a radiator cap. Some, but not all OEM replacements include a cap.

Does Mishimoto use billet filler necks?

Yes. CNC precision-machined billet filler necks are installed on the filler necks to seal better and improve the look over cast or stamped filler necks. Tolerances are held closer and fabrication is improved. This virtually eliminates any neck-to-tank leaks. The billet filler neck also has a larger overflow tube for increased coolant flow to the recovery tank.

How many fins per inch are used in Mishimoto radiators?

There are approximately 7.25 fins per inch on every Mishimoto radiator

What size are the coolant tubes used in Mishimoto radiators?

Mishimoto radiators use cooling tubes with many different sizes, depending on the application. Each tube wall is .32mm thick

What cleaner should I use on my Mishimoto intercooler or oil cooler?

To protect the quality of the color and finish of your new intercooler or oil cooler, we recommend gentle cleaning with non-acid, non-abrasive soaps and thoroughly rinsing with water.

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