GM Idler Pulley, 2001-2012 LB7/LLY/LBZ/LMM/LML

Fits: 2001 thru 2012 Chevy Silverado/GMC Sierra 2500HD/3500HD LB7/LLY/LBZ/LMM/LML Duramax Diesel

Replace your worn out or noisy idler pulley with this OEM pulley.  This part number will work for both idler pulleys on your 2001-2012 Duramax diesel.

Includes:

• (1) Idler Pulley