This kit for Caterpillar C15 and 3406E engines is to change to a 8/6 groove serpentine belt configuration.  Meant to optimizie the belt system by going from V-Belts to an 8/6 groove serpentine belt configuration to ensure better power transmission and reduced belt slippage which prolongs the life of the belts, resulting in improved overall engine performance. Designed to be used with a top or side pad Mount style AC Compressor and a Pad Mount Alternator. Mix of aftermarket and OEM parts.

Kit Includes:

• Alternator Mounting Bracket

• AC Mounting Bracket (Top or Side Mount)

• Crankshaft Pulley (8 Groove) 

• Crankshaft Pulley Adapter

• Alternator Pulley (8 Groove)

• Upper Tensioner (For 6 Groove AC Belt) (Gates)

• Lower Tensioner (For 8 Groove Main Drive Belt) (Gates)

• Upper Smooth Idler Pulley (OEM)

• Lower Idler Pulley (8 Groove) (OEM)

• Fan Hub Mounting Studs

• All fastening Hardware

• optional Belt Set