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

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

Marsoni

M251S

$249.47

Get it in 3 business days with 1 day shipping. Friday, May 29

Mishimoto 03-05 Chevrolet / GMC 6.6L Duramax (LB7/LLY) Transmission CoolerSKU: MMTC DMAX 03SL UPC: 811580034084 Mishimoto 03 05 Chevrolet GMC 6. 6L Duramax (LB7 LLY) Transmission Cooler Control transmission heat in your 2003 2005 Chevrolet Silverado 2500 HD 3500 or GMC Sierra 2500 HD 3500 with 6. 6L Duramax LB7 or LLY engine using this Mishimoto transmission cooler. The stacked plate design delivers powerful cooling for towing fleet work or drag strip runs. This direct fit cooler features a larger core for reliable

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.

Need Help?
Questions about Mishimoto 03-05 Chevrolet / GMC 6.6L Duramax (LB7/LLY) Transmission Cooler, sizing, or delivery? We're just an email away.

Live Shipping Estimates:
Enter your location at checkout to see available shipping methods and costs for Mishimoto 03-05 Chevrolet / GMC 6.6L Duramax (LB7/LLY) Transmission Cooler in your area.

Get Shipping Estimates

Country Zip/Postal Code

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

Received as a Christmas gift from my family. Super Cute! Made from quality material, Fits well as cross body or bum bag, fits everyday essentials like wallet, sunglasses, keys some hand sanitizer and lip gloss. Travel friendly, small enough to carry and tote away and convenient to use every day. Good price for the quality you receive.

WAS THIS REVIEW HELPFUL?YesReportShare

Reviewed in the United States on April 6, 2026

Verified Purchase

katie clarkin

Whiting, US

★★★★★ 5

Super functional

Lots of space and very cute!!!

WAS THIS REVIEW HELPFUL?YesReportShare

Reviewed in the United States on May 8, 2026

Verified Purchase

Donna P.