Shipping Estimate
USA
- USA
- CAN
- USA
- CAN
Ships within 48 hours · Estimated delivery Jul 11 - Jul 16
Promo Codes Available:
For Your Every Summer RSVP, with Code: SUMMER15
Description
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
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.This Part Fits:
| Year | Make | Model | Submodel |
|---|---|---|---|
| 2001-2003 | Chevrolet | Silverado 2500 HD | Base |
| 2001-2003 | Chevrolet | Silverado 2500 HD | LS |
| 2001-2003 | Chevrolet | Silverado 2500 HD | LT |
| 2001-2003 | Chevrolet | Silverado 3500 | Base |
| 2001-2003 | Chevrolet | Silverado 3500 | LS |
| 2001-2003 | Chevrolet | Silverado 3500 | LT |
| 2002-2003 | GMC | Sierra 2500 HD | Base |
| 2001-2002 | GMC | Sierra 2500 HD | SL |
| 2001-2003 | GMC | Sierra 2500 HD | SLE |
| 2001-2003 | GMC | Sierra 2500 HD | SLT |
| 2003 | GMC | Sierra 2500 HD | WT |
| 2002-2003 | GMC | Sierra 3500 | Base |
| 2001-2002 | GMC | Sierra 3500 | SL |
| 2001-2003 | GMC | Sierra 3500 | SLE |
| 2001-2003 | GMC | Sierra 3500 | SLT |
Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
- Except Preorder products are shipped in 48 hours.
- Delivery to the USA:
- 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
4.9 ★★★★★
Based on 2494 reviews
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Product Reviews
★★★★★ 5
Durable
Color: Green
My dog absolutely loves this. Its helped us get her back into going into her crate well again.
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Reviewed in the United States on May 13, 2026
★★★★★ 5
Aggressive chewer
Color: Green
Very durable and long lasting dog toy
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Reviewed in the United States on February 5, 2026
★★★★★ 5
AMAZING!
Color: Pink Blue
I have never written a review before, and I shop 4-5 days a week on Amazon. My 5 month old puppy LOVES these chew toys. When I first opened the box I was worried because they were so hard, but Poppy went crazy. He chews on them, tosses them and retrieves them, runs in circles around them and barks, and when he finally settles down will chew them and make these pig snort sounds of contentment. I have bought a lot of toys for my new puppy… But these are the best by far!
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Reviewed in the United States on June 13, 2026
★★★★★ 4
Toy broke in two
Color: Blue
This is a great toy for aggressive chewers. My reason for 3 stars is my dog dropped it on the tile floor the second day she had it and it broke in two. Not real happy with that.
Update:
The seller has been proactive and accepting of the very minor issue of the toy breaking. Responded within 24 hours and issued a refund. Because of their response I am changing my review to 4 stars.
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Reviewed in the United States on June 23, 2025
★★★★★ 5
Great dog toy
Color: Pink Blue
These are great my dog loves them!!
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Reviewed in the United States on May 14, 2026