Mishimoto Transmission Cooler, Fits Chevrolet/GMC 6.6L Duramax (LB7/LLY) 2003-2005
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Payments from $100.56 with
There’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 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 2003–2005 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.
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
- Patent Pending
- Mishimoto Lifetime Warranty
Purchase Includes:
- (1) Mishimoto Stacked Plate Transmission Cooler
- (2) CNC-Machined Quick-Disconnect to Hose Barb Adapters
- (2) Stock-style Quick-Disconnect Fittings
- (2) Transmission Hoses
- (2) Mounting Brackets
- (4) Worm Gear Clamps
- (1) Zip Tie
- Mounting Hardware
- Mishimoto Lifetime Warranty
Vehicle Specifications:
| Engine Codes | 6.6L Duramax |
| Chassis Codes | LB7 LLY |
Product Specifications:
| SKU | MMTC-DMAX-03SL |
| Core Height | 5.78" |
| Rows | 13 |
| Core Thickness | 1.25" |
| Core Length | 27.95" |
