Tap to Call 1.833.MOTOROSO
Add Vehicle To Confirm Fitment:

MMTC-DMAX-03SL Chevrolet/GMC 6.6L Duramax LB7/LLY Transmission Cooler, 2003-2005

MPN: MMTC-DMAX-03SL

MMTC-DMAX-03SL Chevrolet/GMC 6.6L Duramax LB7/LLY Transmission Cooler, 2003-2005

MPN: MMTC-DMAX-03SL

Motoroso
Sold By:
Motoroso
  • 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 and comes with the Mishimoto Lifetime Warranty

$498.95

In Stock
Free Shipping!
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% 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.

Specifications


Manufacturer's Part Number MMTC-DMAX-03SL
CARB Approved Yes

Reviews


Please sign in or sign up to leave a review for this product.

Questions


Please sign in or sign up to ask a question about this product.

Vehicle Fitment


YearMakeModelTrimEngineNotes
 
 
 
 
 
 
2003GMCSierra 2500 HDWT Standard Cab Pickup 2-Door6.6L 6599CC 403Cu. In. V8 DIESEL OHV Turbocharged
2003GMCSierra 2500 HDBase Extended Cab Pickup 4-Door6.6L 6599CC 403Cu. In. V8 DIESEL OHV Turbocharged
2003GMCSierra 2500 HDSLT Crew Cab Pickup 4-Door6.6L 6599CC 403Cu. In. V8 DIESEL OHV Turbocharged
2003GMCSierra 2500 HDSLE Crew Cab Pickup 4-Door6.6L 6599CC 403Cu. In. V8 DIESEL OHV Turbocharged
2003ChevroletSilverado 2500 HDLS Standard Cab Pickup 2-Door6.6L 6599CC 403Cu. In. V8 DIESEL OHV Turbocharged
2003ChevroletSilverado 2500 HDLS Extended Cab Pickup 4-Door6.6L 6599CC 403Cu. In. V8 DIESEL OHV Turbocharged
2003GMCSierra 2500 HDSLE Extended Cab Pickup 4-Door6.6L 6599CC 403Cu. In. V8 DIESEL OHV Turbocharged
2003GMCSierra 2500 HDBase Crew Cab Pickup 4-Door6.6L 6599CC 403Cu. In. V8 DIESEL OHV Turbocharged
2003GMCSierra 2500 HDSLE Standard Cab Pickup 2-Door6.6L 6599CC 403Cu. In. V8 DIESEL OHV Turbocharged
2003ChevroletSilverado 2500 HDBase Standard Cab Pickup 2-Door6.6L 6599CC 403Cu. In. V8 DIESEL OHV Turbocharged
2003GMCSierra 2500 HDSLT Extended Cab Pickup 4-Door6.6L 6599CC 403Cu. In. V8 DIESEL OHV Turbocharged
2003ChevroletSilverado 2500 HDLS Crew Cab Pickup 4-Door6.6L 6599CC 403Cu. In. V8 DIESEL OHV Turbocharged
2003ChevroletSilverado 2500 HDLT Crew Cab Pickup 4-Door6.6L 6599CC 403Cu. In. V8 DIESEL OHV Turbocharged
2003ChevroletSilverado 2500 HDLT Extended Cab Pickup 4-Door6.6L 6599CC 403Cu. In. V8 DIESEL OHV Turbocharged
2003GMCSierra 2500 HDBase Standard Cab Pickup 2-Door6.6L 6599CC 403Cu. In. V8 DIESEL OHV Turbocharged
2003ChevroletSilverado 2500 HDBase Crew Cab Pickup 4-Door6.6L 6599CC 403Cu. In. V8 DIESEL OHV Turbocharged
2003ChevroletSilverado 2500 HDBase Extended Cab Pickup 4-Door6.6L 6599CC 403Cu. In. V8 DIESEL OHV Turbocharged
2004ChevroletSilverado 2500 HDLS Extended Cab Pickup 4-Door6.6L 6599CC 403Cu. In. V8 DIESEL OHV Turbocharged
2004ChevroletSilverado 2500 HDWT Crew Cab Pickup 4-Door6.6L 6599CC 403Cu. In. V8 DIESEL OHV Turbocharged
2004GMCSierra 2500 HDSLT Crew Cab Pickup 4-Door6.6L 6599CC 403Cu. In. V8 DIESEL OHV Turbocharged