SKU: 91702114784

Mishimoto Transmission Cooler 03-05 GM 6.6L Duramax LB7 / LLY

Sale price$323.55 Regular price$359.50
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Ships within 48 hours · Estimated delivery Jul 15 - Jul 20

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Description

Mishimoto Transmission Cooler 03-05 GM 6.6L Duramax LB7 / LLYSo you drive your Duramax a little hard sometimes, huh? Well one thing you shouldnt overlook is how hot your Transmission becomes when you do. Luckily Mishimoto has designed a solution to that problem: a direct fit transmission cooler for your Chevy GMC 6. 6L Duramax. This transmission cooler utilizes a stacked plate design for maximum durability and powerful cooling. Aside from its durable construction, this transmission cooler is significantly

So you drive your Duramax a little hard sometimes, huh? Well one thing you shouldn’t overlook is how hot your Transmission becomes when you do. Luckily Mishimoto has designed a solution to that problem: a direct-fit transmission cooler for your Chevy/GMC 6.6L Duramax.

This transmission cooler utilizes a stacked-plate design for maximum durability and powerful cooling. Aside from its durable construction, this transmission cooler is significantly larger than the stock core and boasts a 174% greater core volume. Not only that, it has a 192% 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 Mishimoto’s Lifetime Warranty with Accident Protection for worry free cooling as long as you own it.

Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
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Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 91702114784

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Nice and thick! It keeps my skin very smooth and moisturized.
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Reviewed in the United States on March 13, 2026
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Reviewed in the United States on April 6, 2026
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