Mishimoto 03-05 Chevrolet / GMC 6.6L Duramax (LB7/LLY) Transmission Cooler
Features
- Direct fit for all 2003-2005 Chevrolet/GMC 6.6L Duramax (LB7/LLY)
- Stacked-plate construction for maximum durability and superior cooling
- CNC-machined adapters make it easy to connect Mishimoto cooler to stock fluid lines or AN lines
- 174% greater core volume than stock cooler
- 192% greater external fin surface area over stock cooler
Description
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 its durable construction, this transmission cooler is significantly larger than the stock core. The Mishimoto transmission cooler boasts a 174% greater core volume, and 192% 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.
Tech Specs
- Core Height 5.78"
- Rows 13
- Core Thickness 1.25"
- Core Length 27.95"
- Engine Codes 6.6L Duramax
- Chassis Codes LB7, LLY
Vehicle Fitments:
| Year | Make | Model | Submodel |
|---|---|---|---|
| 2003 - 2005 | Chevrolet | Silverado 2500 HD | WT, LT, Base, LS |
| 2003 - 2005 | Chevrolet | Silverado 3500 | Base, LT, LS |
| 2004 | Chevrolet | Silverado 3500 | WT |
| 2003 - 2005 | GMC | Sierra 2500 HD | Base, WT, SLE, SLT |
| 2003 - 2005 | GMC | Sierra 3500 | SLT, SLE, Base |
| 2004 - 2005 | GMC | Sierra 3500 | WT |