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HomeShopTransmission CoolersMishimoto 03-05 Chevrolet / GMC 6.6L Duramax Transmission Cooler (LB7/LLY)
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Mishimoto 03-05 Chevrolet / GMC 6.6L Duramax Transmission Cooler (LB7/LLY)
Mishimoto 03-05 Chevrolet / GMC 6.6L Duramax Transmission Cooler (LB7/LLY) - Image 2
Mishimoto 03-05 Chevrolet / GMC 6.6L Duramax Transmission Cooler (LB7/LLY) - Image 3
Mishimoto 03-05 Chevrolet / GMC 6.6L Duramax Transmission Cooler (LB7/LLY) - Image 4
Mishimoto 03-05 Chevrolet / GMC 6.6L Duramax Transmission Cooler (LB7/LLY) - Image 5
Mishimoto 03-05 Chevrolet / GMC 6.6L Duramax Transmission Cooler (LB7/LLY) - Image 6
Mishimoto 03-05 Chevrolet / GMC 6.6L Duramax Transmission Cooler (LB7/LLY) - Image 7
Mishimoto 03-05 Chevrolet / GMC 6.6L Duramax Transmission Cooler (LB7/LLY) - Image 8
Mishimoto 03-05 Chevrolet / GMC 6.6L Duramax Transmission Cooler (LB7/LLY) - Image 9

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

SKU: MMTC-DMAX-03SL

Original price was: $549.00.Current price is: $498.95.

In stock

2 in stock

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 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 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.
  • CNC-machined adapters make it easy to connect Mishimoto cooler to stock fluid lines or AN lines
  • Direct-fit for all 2003-2005 Chevrolet/GMC with Allison transmission (LB7/LLY)
  • Stacked-plate construction for maximum durability and superior cooling
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Description

Ensure your transmission stays cool under demanding conditions with the Mishimoto 03-05 Chevrolet and GMC 6.6L Duramax transmission cooler. Designed specifically for models with Allison transmissions, this direct-fit cooling solution features a stacked-plate design that offers maximum durability and superior heat dissipation. Its larger core provides 174% more volume and 192% greater fin surface area compared to the stock cooler, significantly improving cooling efficiency to prevent overheating during towing, heavy-duty work, or spirited driving. The included CNC-machined adapters allow for seamless connection to stock fluid lines or AN lines, simplifying installation. The custom brackets and hoses are engineered to fit perfectly, ensuring a secure and leak-free setup. Built from high-quality materials, this cooler is designed to withstand tough conditions and is backed by Mishimoto’s Lifetime Warranty, providing peace of mind for as long as you own your vehicle.

Features:

  • CNC-machined adapters for easy connection to stock or AN fluid lines
  • Direct-fit design for 2003-2005 Chevrolet and GMC models with Allison transmissions (LB7/LLY)
  • Stacked-plate construction for maximum durability and enhanced cooling performance

Fitment:
Chevrolet Silverado 2500 HD Base 2003
Chevrolet Silverado 2500 HD Base 2004
Chevrolet Silverado 2500 HD Base 2005
Chevrolet Silverado 2500 HD LS 2003
Chevrolet Silverado 2500 HD LS 2004
Chevrolet Silverado 2500 HD LS 2005
Chevrolet Silverado 2500 HD LT 2003
Chevrolet Silverado 2500 HD LT 2004
Chevrolet Silverado 2500 HD LT 2005
Chevrolet Silverado 2500 HD WT 2003
Chevrolet Silverado 2500 HD WT 2004
Chevrolet Silverado 2500 HD WT 2005
Chevrolet Silverado 3500 Base 2003
Chevrolet Silverado 3500 Base 2004
Chevrolet Silverado 3500 Base 2005
Chevrolet Silverado 3500 LS 2003
Chevrolet Silverado 3500 LS 2004
Chevrolet Silverado 3500 LS 2005
Chevrolet Silverado 3500 LT 2003
Chevrolet Silverado 3500 LT 2004
Chevrolet Silverado 3500 LT 2005
Chevrolet Silverado 3500 WT 2004
GMC Sierra 2500 HD Base 2003
GMC Sierra 2500 HD Base 2004
GMC Sierra 2500 HD Base 2005
GMC Sierra 2500 HD SLE 2003
GMC Sierra 2500 HD SLE 2004
GMC Sierra 2500 HD SLE 2005
GMC Sierra 2500 HD SLT 2003
GMC Sierra 2500 HD SLT 2004
GMC Sierra 2500 HD SLT 2005
GMC Sierra 2500 HD WT 2003
GMC Sierra 2500 HD WT 2004
GMC Sierra 2500 HD WT 2005
GMC Sierra 3500 Base 2003
GMC Sierra 3500 Base 2004
GMC Sierra 3500 Base 2005
GMC Sierra 3500 SLE 2003
GMC Sierra 3500 SLE 2004
GMC Sierra 3500 SLE 2005
GMC Sierra 3500 SLT 2003
GMC Sierra 3500 SLT 2004
GMC Sierra 3500 SLT 2005
GMC Sierra 3500 WT 2004
GMC Sierra 3500 WT 2005

Additional information

Weight 9.1 lbs
Dimensions 29.1 × 14.9 × 4.6 in
air_freight_prohibited

false
not_carb_approved

false
ltl_freight_required

false
prop_65

Y
part_type

automotive
epa

N/A
carb_acknowledgement_required

false
regular_stock

t
upc

811580034084
brand

Mishimoto
part_number

MMTC-DMAX-03SL

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