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Mishimoto 03-05 Chevrolet / GMC 6.6L Duramax (LB7/LLY) Transmission Cooler
Mishimoto 03-05 Chevrolet / GMC 6.6L Duramax (LB7/LLY) Transmission Cooler
Mishimoto 03-05 Chevrolet / GMC 6.6L Duramax (LB7/LLY) Transmission Cooler
Mishimoto 03-05 Chevrolet / GMC 6.6L Duramax (LB7/LLY) Transmission Cooler
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Mishimoto 03-05 Chevrolet / GMC 6.6L Duramax (LB7/LLY) Transmission Cooler

2 sold in last 8 hours
Mishimoto
MISMMTC-DMAX-03SL
In stock
Transmission Coolers
$494.00 $448.95
There's no greater enemy for a transmission than heat. Whether your 2003-2005 Chevy/GMC 6.6L Duramax is...
$448.95

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Mishimoto 03-05 Chevrolet / GMC 6.6L Duramax (LB7/LLY) Transmission Cooler
There's no greater enemy for a transmission than heat. Whether your 2003-2005 Chevy/GMC 6.6L Duramax is a dedicated tow vehicle, hardworking fleet truck, or a daily driver with a liking for the drag-strip, you need to ensure that your transmission runs cool. Luckily, Mishimoto has developed a direct-fit transmission cooler to do just that. Our 2003-2005 Chevy/GMC 6.6L Duramax transmission cooler utilizes a stacked-plate design for maximum durability and powerful cooling. Aside from It's durable construction, this transmission cooler is significantly larger than the stock core. The Mishimoto transmission cooler boasts a 174-percent greater core volume, and 192-percent greater fin surface area than the stock 2003-2005 Duramax transmission cooler. The included CNC-machined adapters connect directly to the stock transmission cooler lines for leak-free cooling. Direct-fit brackets and tailor-made hoses make installation easy. Like all Mishimoto products, this transmission cooler is backed up by our Lifetime Warranty with Accident Protection for worry free cooling as long as you own it.

This Part Fits:

Year Make Model Submodel
2003-2005 Chevrolet Silverado 2500 HD Base
2003-2005 Chevrolet Silverado 2500 HD LS
2003-2005 Chevrolet Silverado 2500 HD LT
2003-2005 Chevrolet Silverado 2500 HD WT
2003-2005 Chevrolet Silverado 3500 Base
2003-2005 Chevrolet Silverado 3500 LS
2003-2005 Chevrolet Silverado 3500 LT
2004 Chevrolet Silverado 3500 WT
2003-2005 GMC Sierra 2500 HD Base
2003-2005 GMC Sierra 2500 HD SLE
2003-2005 GMC Sierra 2500 HD SLT
2003-2005 GMC Sierra 2500 HD WT
2003-2005 GMC Sierra 3500 Base
2003-2005 GMC Sierra 3500 SLE
2003-2005 GMC Sierra 3500 SLT
2004-2005 GMC Sierra 3500 WT
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REFUND POLICY We have a 14-day return policy, which means you have 14 days after receiving your item to request a return. Returns accepted for 14 days Customer provides return shipping 20% restocking fee No returns on final sale items To be eligible for a return, your item must be in the same condition that you received it, unworn or unused, with tags, and in its original packaging. You’ll also need the receipt or proof of purchase. To start a return, you can contact us at support@mo-moto.com. Please note that returns will need to be sent to the following address: Mo-Moto/Returns 6082 W Seltice Way STE 121 Post Falls, ID 83854 If your return is accepted, we’ll send you a return shipping label, as well as instructions on how and where to send your package. Items sent back to us without first requesting a return will not be accepted. You can always contact us for any return question at support@mo-moto.com. Damages and issues Please inspect your order upon reception and contact us immediately if the item is defective, damaged or if you receive the wrong item, so that we can evaluate the issue and make it right. Exceptions / non-returnable items Certain types of items cannot be returned, like perishable goods (such as food, flowers, or plants), custom products (such as special orders or personalized items), and personal care goods (such as beauty products). We also do not accept returns for hazardous materials, flammable liquids, or gases. Please get in touch if you have questions or concerns about your specific item. Unfortunately, we cannot accept returns on sale items or gift cards. Exchanges The fastest way to ensure you get what you want is to return the item you have, and once the return is accepted, make a separate purchase for the new item. European Union 14 day cooling off period Notwithstanding the above, if the merchandise is being shipped into the European Union, you have the right to cancel or return your order within 14 days, for any reason and without a justification. As above, your item must be in the same condition that you received it, unworn or unused, with tags, and in its original packaging. You’ll also need the receipt or proof of purchase. Refunds We will notify you once we’ve received and inspected your return, and let you know if the refund was approved or not. If approved, you’ll be automatically refunded on your original payment method within 10 business days. Please remember it can take some time for your bank or credit card company to process and post the refund too. If more than 15 business days have passed since we’ve approved your return, please contact us at support@mo-moto.com.

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