Find the belts, pulleys, tensioners, and other Belt & Accessory Drive components your 2001-2004 Chevy/GMC 6.6L LB7 Duramax needs. Tensioners and pulleys keep the serpentine belt in place and ensures optimal function of belt driven components on your vehicle. Find the high-quality serpentine belt needed to replace the damaged or worn out belt on your vehicle. Performance dampers from Fluidampr can prolong the life of your diesel engine and minimize chatter from torsional vibrations. Belt & Accessory Drive components are available from leading brands like Dayco and Dorman, as well as products from Interstate-Mcbee for HD applications.