Mishimoto MMTCL-DMAX-01 Transmission Cooler Line Kit for 2001-2005 Duramax LB7/LLY

The Mishimoto MMTCL-DMAX-01 Transmission Cooler Line Kit provides a high-performance solution for upgrading the factory transmission cooler lines on 2001-2005 Chevrolet and GMC trucks equipped with 6.6L Duramax LB7 and LLY engines. Engineered to handle the extreme demands of towing and heavy-duty use, this kit delivers superior durability and flow compared to stock rubber lines.

Key Features:

• Direct-fit replacement for 2001-2005 LB7/LLY Duramax applications—no modifications required
• High-flow -10AN stainless steel braided lines and fittings maximize transmission fluid flow while eliminating restrictions
• Extreme pressure rating with 2,000 psi working pressure and 6,000 psi burst pressure for reliable performance under demanding conditions
• High-strength nylon outer braid prevents line expansion under pressure and protects against abrasion and heat
• Precision-engineered AN fittings ensure leak-free connections and easy installation
• Backed by Mishimoto Lifetime Warranty for peace of mind

This transmission cooler line kit is ideal for diesel truck owners who tow heavy loads, run modified engines, or simply want to upgrade from failure-prone factory rubber lines. The stainless steel braided construction and high-flow design help maintain optimal transmission temperatures, extending the life of your transmission and improving overall reliability.