WIHMCCK AUTO PARTS – PREMIUM QUALITY?? CRITICAL – PLEASE READ BEFORE ORDERING. Compatible with Detroit Diesel Series 60 12.7L (PRE-EGR, 2004 & Older) engines ONLY. NOT compatible with Series 60 14.0L engines? NOT compatible with 2005+ EGR engines?? This is a complete Accessory Drive Assembly with 8-Groove Serpentine Belt and 34-Tooth Helical Drive Gear. Verify […]