SKU: 20871106687

Mishimoto Chevrolet/GMC 6.6L Duramax (LB7) Transmission Cooler, 2001-2003

Sale price$221.40 Regular price$246.00
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  • USA
  • CAN

Ships within 48 hours · Estimated delivery Jul 24 - Jul 29

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Description

Mishimoto Chevrolet/GMC 6.6L Duramax (LB7) Transmission Cooler, 2001-2003There's no greater enemy for a transmission than heat. Whether your 2001 2003 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 2001 2003 Chevy GMC 6. 6L Duramax transmission cooler utilizes a stacked plate design for maximum durability

There's no greater enemy for a transmission than heat. Whether your 2001-2003 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 2001-2003 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 2001-2003 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.

Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
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: 20871106687

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4.6 ★★★★★
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Guillo
Charlottesville, US
★★★★★ 5
Protección!
Exelente!
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Reviewed in the United States on May 22, 2026
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Verified Purchase
Jesus suarez
Chelsea, US
★★★★★ 5
Recomendado
Si utilizas un 4.6L Stoker es obligatorio utilizar en cada cambio de aceite.
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Reviewed in the United States on May 30, 2026
E
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Ed H.
Carnegie, US
★★★★★ 5
Hard to find.
Good stuff. Hard to find. It should extend my engine life.
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Reviewed in the United States on April 2, 2026
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doug kowitz
Chelsea, US
★★★★★ 4
Great product
Quick delivery.
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Reviewed in the United States on April 29, 2026
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David Williams
Waukegan, US
★★★★★ 5
Use as directed, when needed, and you'll be good to go.
A must have if you have a need for a ZDDP additive. This won't fix your worn valve seats, leaking piston rings, seasonal depression or gout but it will improve the lubricating properties of a quality oil in a properly maintained motor for your longevity goals.
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Reviewed in the United States on February 5, 2026

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