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Mishimoto Aluminum Radiator, Chevy/GMC (2006-10) 6.6L Duramax 2500 & 3500

Mishimoto has released a direct-fit performance aluminum radiator for the 2006–2010 Chevrolet/GMC 6.6L Duramax. Mishimoto performance radiators are manufactured from high-quality aircraft-grade aluminum with a 100% brazed aluminum core and polished end tanks. The Mishimoto 6.6L Duramax performance radiator offers increased cooling efficiency, and the all-aluminum TIG-welded construction provides a rugged design that can take the abuse of any environment or terrain. Pair your Mishimoto 6.6L Duramax aluminum radiator with their silicone coolant hose kit for the ultimate in cooling performance and reliability. The Mishimoto 6.6L Duramax aluminum radiator retains factory fitment and requires no modification to your truck. Whether you use your Duramax for tearing up the drag strip or working at the job site, you can trust the Mishimoto performance radiator to keep your truck cool. As with all their Duramax performance parts, this aluminum radiator is protected by the Mishimoto lifetime warranty.

-Direct fit for 2006–2010 Chevrolet/GMC trucks equipped with the 6.6L Duramax
-Full aluminum design with durable, TIG-welded construction
-Features a two-row, 2.21" thick brazed aluminum core, providing ideal fluid temperatures on the street or track
-Features a CNC-machined quick disconnect outlet for use with the stock hose connection
-Ideal replacement for an aged, clogged, or leaking stock radiator
-Efficient fluid temperature reduction and superior heat dissipation makes this radiator ideal for use when hauling, towing, and/or in warm climates
-Includes Magnetic Drain Plug to capture any metallic debris/fragments in your cooling system
-Mishimoto Lifetime Warranty

***See additional notes below for the details of the amazing Mishimoto lifetime warranty***


Was: $850.00
Sale: $765.00
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45.1" x 24.8" x 5.9"

33.86" x 23.54"



Factory-Style Quick Disconnect



M12 x 1.5

2006-2010 Chevrolet Silverado 2500 HD w/ 6.6L Duramax LBZ/LMM
2006-2010 Chevrolet Silverado 3500 HD w/ 6.6L Duramax LBZ/LMM
2006-2010 GMC Sierra 2500 HD w/ 6.6L Duramax LBZ/LMM
2006-2010 GMC Sierra 3500 HD w/ 6.6L Duramax LBZ/LMM

-Mishimoto Radiator
-Magnetic Drain Plug
-Mishimoto Lifetime Warranty


Mishimoto recommends that you remove the stock o-ring from lower coolant hose connector and install the new provided o-ring.

Mishimoto Performance (MP), warrants all of its products under its 'no questions asked' limited lifetime warranty policy. Regardless of the defect in product, Mishimoto will replace the original product. Warranty claims must be accompanied by the original sales receipt from an authorized dealer.

A trained professional should install all MP products. Any issues with compatibility or installation should be addressed before attempting to install the product.

The purchaser's remedy for breach of this limited warranty, exclusive of all other remedies provided by law, is expressly limited to repair or replacement of any part or parts. All products returned for warranty consideration must be returned to MP with all transportation expenses prepaid.

MP shall not be responsible for damages to its products or injury to persons using the products in any manner that would constitute improper operation, including but not limited to: incorrect opening of radiator pressure caps, burst hoses, unintended application or usage not intended by MP, negligence, improper installation, or any other use that may cause damages or injury. MP shall not be responsible for injury or harm to persons or property when caused by persons or vehicles using its products.

Mishimoto, under its no questions asked warranty policy, will provide a warranty for all claims including vehicles involved in accidents. Warranty claims must include pictures of the accident and an official police report, and must be within three months of the accident.

All Mishimoto products are engineered to fit with OEM applications, as well as other Mishimoto products.

Mishimoto will not be held responsible for fitment issues caused by attempted installation of additional aftermarket parts. This includes, but is not limited to, performance parts and any other non-OEM replacement parts. Fitment with different brands cannot be guaranteed.

Furthermore, Mishimoto will not be held responsible for fitment issues caused by an accident. Many times, clearances needed for installation are very strict. If a vehicle has been involved in a front-end accident, available space for a product such as a thicker aluminum radiator may be compromised.

For all warranty claims, please contact Mishimoto.


Shipping Information

  • Item Requires Shipping
  • 80.0 lbs.
  • W12.0000” x H46.5000” x L48.5000”
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