Front Engine Upfit Kit – Dual V-Belt to 10/8 Groove Serpentine Belt Conversion for Detroit Diesel Series 60 Engines (Kenworth W900 & Peterbilt 388/389).
This chassis-specific upfit kit converts the front engine accessory drive from dual V-belts to a high-performance 10/8 groove serpentine belt system. It is designed for Detroit Diesel Series 60 engines equipped with a top-mount pad-style AC compressor and pad-mount alternator.
Kit Includes:
- (1) Alternator/AC Compressor Mounting Bracket – Top Mount
- (1) AC Compressor Clutch – 8 Groove
- (1) Accessory Drive Pulley – 8 Groove
- (1) Accessory Drive Pulley Retaining Nut
- (1) Alternator and AC Compressor Tensioner
- (1) Alternator Pulley – 8 Groove
- (1) Belt Tensioner Mounting Bracket
- (1) Main Drive Belt Tensioner – 10 Groove
- (1) Crankshaft Pulley – 10 Groove
- (6) Crankshaft Pulley Bolts
- Mounting Hardware
Compatibility:
- Detroit Diesel Series 60 engines
- Kenworth W900 and Peterbilt 388/389 trucks
Important Notes:
- For accessory drive P/N 23523996: Replace the dual V-belt pulley with the supplied 8-groove serpentine pulley.
- For accessory drive P/N 23509200: The shaft is 1/4" too short – shimming or shaft replacement may be required for proper belt alignment.
- Contact Kustom Truck to confirm compatibility with your specific engine and chassis configuration.
Key Specifications:
- Converts dual V-belts to 10/8 groove serpentine belt system
- Improves power transmission and reduces belt slippage
- Compatible with top-mount pad-style AC compressor and pad-mount alternator
- Complete kit with brackets, pulleys, tensioners, and hardware
1 year
