Fits: 2002 thru 2004 Chevy Silverado/GMC Sierra 2500HD/3500HD LB7 Duramax Diesel

Eliminate the weak factory spring belt tensioner with Wagler Competition's . These are a must when running dual CP3 pumps on your serpentine belt setup.

Features:

• Reduce belt slip & thrown belts
• Mechanical design, will not wear like factory tensioner

Includes:

• Mechanical belt tensioner

Notes:

• NOT compatible with 2001 LB7 models