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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
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Mishimoto 03-05 Chevrolet / GMC 6.6L Duramax (LB7/LLY) 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 03-05 Chevrolet / GMC 6.6L Duramax (LB7/LLY) Transmission CoolerThere'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
Easy Shipping

Quick Dispatch:

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

Order Tracking:

You'll receive a tracking link by email once your Mishimoto 03-05 Chevrolet / GMC 6.6L Duramax (LB7/LLY) Transmission Cooler ships.

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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
4.1 ★★★★★
Based on 125 reviews
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Product Reviews
I
Verified Purchase
iCSharp25
Bozeman, US
★★★★★ 4
Pretty functional
Color: Llight Gray
Looks good and very surprising. But need to check for QA. Mine came cracked on one of the corners and I didnt noticed it. Other than that, I recommend these. Pretty roomy for all your things.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on February 9, 2026
J
Verified Purchase
JoJo Apple
Fort Morgan, US
★★★★★ 5
Tray works for me!
Color: Llight Gray
Love this little tray! Sits on my desk and helped eliminate some of the visual clutter by consolidating it into one box. I like the quality of the materials too - if I wasn't lazy, I'd uplaod a photo but alas - today, I'm lazy
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 14, 2026
T
Verified Purchase
T, Asombrado
Chelsea, US
★★★★★ 5
Useful with a hint of charm
Color: Green
Its both handy and helps class up your living space. Its amazing what a difference a little organization can do for you.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 29, 2026
A
Verified Purchase
Amazon Customer
Omaha, US
★★★★★ 3
Not great
Color: Llight Gray
Didn't like how fake and tacky it looked.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on March 16, 2026
M
Verified Purchase
Mojooooo
Draper, US
★★★★★ 5
Perfect!! I’m obsessed!
Size: Medium (6.8"W*4.4"D*2.2"H), Color: Beige
So cute and great for travel! Lots of organization areas, easy to use, very durable and not made cheap, the zipper closes just fine and it’s compact for traveling or storing under the sink.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 1, 2026

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