Wagler Mechanical Belt Tensioner, 2004.5-2010 LLY/LBZ/LMM

Part# WCPC661025.1


WARNING: Cancer and Reproductive Harm - www.P65Warnings.Ca.Gov

Fits: 2004.5 thru 2010 Chevy Silverado/GMC Sierra 2500HD/3500HD LLY/LBZ/LMM 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.


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


  • Mechanical belt tensioner