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Mishimoto 01-03 Chevrolet / GMC 6.6L Duramax (LB7) Transmission Cooler

Marsoni M251S
Sale price$249.47
Pay 4 payments of $62.37 a month.Shop Pay
Get it in 3 business days with 1 day shipping. Friday, May 29
Mishimoto 01-03 Chevrolet / GMC 6.6L Duramax (LB7) Transmission CoolerThere'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
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Your Mishimoto 01-03 Chevrolet / GMC 6.6L Duramax (LB7) Transmission Cooler orders ship within 1-2 business days.

Delivery Options:

  • Standard: 3-7 business days
  • Fast: 2-3 business days
  • Express: 1-2 business days

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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
4.8 ★★★★★
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Verified Purchase
Gary Miller
Dallas, US
★★★★★ 5
Just the part I needed
Number of Items: 1
It was a perfect match to the one I needed to replace. And the shipping was lightning fast
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 7, 2026
S
Verified Purchase
steven clark
Houston, US
★★★★★ 5
Works great
Number of Items: 1
Works great easy fix for my Merc. Trim motor
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on September 3, 2025
L
Verified Purchase
Lori
Battle Creek, US
★★★★★ 5
Worked well
Number of Items: 1
Worked well for the money
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Reviewed in the United States on December 27, 2025
R
Verified Purchase
Robert Zeigler
Pawtucket, US
★★★★★ 4
Buy
Number of Items: 2
Great deal
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Reviewed in the United States on June 24, 2025
R
Verified Purchase
Regal Boat
Fort Morgan, US
★★★★★ 5
Perfect replacement solenoids.
Number of Items: 2
Perfect fit and works as expected!
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Reviewed in the United States on September 11, 2025

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