Mishimoto Transmission Line Kit for 2001-2005 GM 6.6L Duramax LB7/LLY

Mishimoto Transmission Line Kit for 2001–2005 GM 6.6L Duramax (LB7/LLY) Ensure reliable power delivery and long-term transmission health with the Mishimoto Transmission Line Kit engineered specifically for 2001–2005 GM 6.6L Duramax LB7/LLY. Designed to work with Mishimoto performance transmission coolers or OEM systems, these lines keep fluid flowing efficiently while resisting heat, pressure, and abrasion. Key Features PTFE core — exceptional oil and heat resistance for lasting durability in extreme underhood conditions. Nylon-braided exterior — high-strength braid prevents expansion under pressure and provides abrasion protection. -10AN fittings — secure, leak-free connections for performance and peace of mind. Vehicle-specific fitment — engineered for direct compatibility with 2001–2005 GM 6.6L Duramax LB7/LLY transmissions. Mishimoto Lifetime Warranty — backed for life for reliable performance and support. Benefits Replace aging or restrictive factory lines to improve transmission cooling efficiency, lower fluid temperatures, and reduce the risk of overheating under heavy towing or performance use. The combination of PTFE and braided nylon ensures the lines withstand elevated pressures and harsh environments while maintaining a factory-like installation experience. Upgrade your Duramax transmission system with Mishimoto quality for durable, leak-free fluid delivery and long-term confidence on the road or at the jobsite.