MERCHANT AUTOMOTIVE COLD START VALVE HOSE 15009 | 2001-2004 6.6L Duramax LB7

The Merchant Automotive Cold Start Valve Hose (Part #15009) is a premium replacement low-pressure fuel line designed specifically for 2001–2004 GM Duramax 6.6L LB7 diesel engines. It is a pre-molded, direct-fit rubber hose engineered to replace cracked, dry-rotted, or leaking factory lines to maintain optimal cold-weather fuel flow and smooth engine start-ups.