Front Engine Upfit Kit – V-Belt to 12/6 Groove Serpentine Belt Conversion for Caterpillar C15 & 3406E Engines.
This kit converts the accessory drive from V-belts to a high-performance 12/6 groove serpentine belt system. Available in two configurations (Top Pad Mount or Side Pad Mount AC Compressor), both compatible with a pad-mount alternator.
Kit Includes:
- (1) Alternator Mounting Bracket
- (1) AC Mounting Bracket – Top or Side Pad Mount (as selected)
- (1) Upper Idler Pulley – Smooth
- (1) Lower Idler Pulley – 12 Groove
- (1) Alternator Pulley – 12 Groove
- (1) Upper Tensioner – For 6 Groove AC Belt
- (1) Lower Tensioner – For 12 Groove Main Drive Belt
- (1) Crankshaft Pulley – 12 Groove
- Fan Hub Mounting Studs
- Genuine Caterpillar Hardware
Compatibility:
- Caterpillar C15 and 3406E engines
- Various Class 8 trucks (Peterbilt, Kenworth, Freightliner, etc.)
Important Notes:
- Choose Top Pad Mount or Side Pad Mount AC Compressor configuration when ordering.
- Includes Genuine Caterpillar hardware for mounting brackets to the engine.
- Contact Kustom Truck to confirm compatibility with your specific engine and AC compressor setup.
Key Specifications:
- Converts V-belts to 12/6 groove serpentine belt system
- Includes brackets, 12/6-groove pulleys, dual tensioners, and idler pulleys
- Improves power transmission and reduces belt slippage
- Compatible with pad-mount alternator