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- USA
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Ships within 48 hours · Estimated delivery Jul 9 - Jul 14
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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:
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- 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
4.6 ★★★★★
Based on 1330 reviews
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Product Reviews
★★★★★ 5
Easy to manage
Color: Black, Size: 88"- 4 Panel
Sturdy, easy to manage and roll around. The material for the walls is of a decent ply as well
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Reviewed in the United States on May 24, 2026
★★★★★ 4
Great product!
Color: Beige, Size: 88"- 4 Panel
Worked well and it was easy to roll around and fold. The size is great and has a good weight to it. Very sturdy, I plan to buy more
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Reviewed in the United States on February 10, 2026
★★★★★ 5
Wonderful Room Partition !
Color: Black, Size: 88"- 4 Panel
This product is made very well, packaged, and assembled with no problems. All parts and tools are included (except a Phillips screwdriver.) I put this item all together by myself on a bed to make it easy and simple. I made sure that every screw head was attached where the recessed dimples are located on the vertical poles, just don't overtighten anything. Everything fits like a charm, good quality, looks great, perfect height, rolls with ease, proper privacy, really impressive ! I got the 4-panel in black color. I would certainly buy this item again ! Thank you !
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Reviewed in the United States on September 26, 2025
★★★★★ 1
Not impressed
Color: Beige, Size: 21.5"- 1 Panel
Very flimsy but does the job intended
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Reviewed in the United States on May 27, 2026
★★★★★ 3
Fair
Color: Black, Size: 88"- 4 Panel
Fair product. Very cheap quality.
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Reviewed in the United States on August 10, 2025