Mishimoto Transmission Coolers for 2003-2005 Chevrolet/GMC 6.6L Duramax LB7/LLY - MMTC-DMAX-03SL

Key Features & Specs:

• Brand: Mishimoto
• Part Number: MMTC-DMAX-03SL
• Product Type: Transmission Coolers
• Engine: 6.6L Duramax LB7/LLY
• Transmission: Allison transmission
• Construction: Stacked-plate
• Core Volume: 174% greater than stock
• External Fin Surface Area: 192% greater than stock
• Adapters: CNC-machined quick-disconnect to hose barb adapters
• Fittings: Stock-style quick-disconnect fittings
• Hose Standard: SAE J1532 transmission hose
• Patent Number: D900,161
• Fitment Note: Fits late 2003 trucks with purple clips; early 2003 trucks with orange clips should use MMTC-DMAX-01
• Use: Towing, hauling, heavy-duty driving, and improved transmission cooling
• Warranty: Mishimoto Lifetime Warranty
• Includes: Stacked plate transmission cooler, CNC-machined adapters, stock-style quick-disconnect fittings, transmission hoses, mounting brackets, worm gear clamps, zip tie, mounting hardware, and Mishimoto Lifetime Warranty

Fitment:

• 2003-2005 Chevrolet Silverado 2500HD 6.6L Duramax LB7/LLY
• 2003-2005 Chevrolet Silverado 3500 6.6L Duramax LB7/LLY
• 2003-2005 GMC Sierra 2500HD 6.6L Duramax LB7/LLY
• 2003-2005 GMC Sierra 3500 6.6L Duramax LB7/LLY

The Mishimoto Transmission Coolers for 2003-2005 Chevrolet and GMC 6.6L Duramax LB7/LLY trucks are designed to improve transmission cooling performance for Allison-equipped heavy-duty applications. Built for Silverado and Sierra 2500HD and 3500 models, this direct-fit stacked-plate cooler provides maximum durability and superior cooling for towing, hauling, and demanding use. With 174% greater core volume and 192% greater external fin surface area over the stock cooler, it helps control transmission temperatures while CNC-machined adapters allow connection to stock fluid lines or AN lines.