Upgrade your Detroit Diesel Series 60 engine with the Kustom Truck Front Engine Upfit Kit, designed to convert from dual V-belts to a high-performance 10/8 groove serpentine belt configuration for Kenworth W900 and Peterbilt 388/389 trucks. This chassis-specific kit enhances power transmission, reduces belt slippage, and extends belt life, optimizing engine efficiency and performance. Engineered for use with a top-mount pad-style AC compressor and pad-mount alternator, the kit includes a comprehensive set of components: alternator/AC compressor mounting bracket, 8-groove AC compressor clutch and alternator pulley, 10-groove crankshaft pulley, tensioners, accessory drive pulley, and mounting hardware. Ideal for mechanics and fleet owners, this kit ensures reliable operation in custom builds or fleet upgrades. Note: For engines with accessory drive P/N 23523996, replace the dual V-belt pulley with the provided 8-groove serpentine pulley; for P/N 23509200, the shaft is 1/4" too short and requires shimming or replacement to align the belt properly. Confirm compatibility with your engine and chassis by contacting Kustom Truck.
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
Key Features:
- Designed for Detroit Diesel Series 60 engines in Kenworth W900, Peterbilt 388/389
- Converts dual V-belts to 10/8 groove serpentine belt for improved power transmission
- Reduces belt slippage and extends belt life for enhanced engine efficiency
- Compatible with top-mount pad-style AC compressor and pad-mount alternator
- Includes mounting brackets, tensioners, pulleys, and hardware for complete upfit
- Addresses accessory drive P/N 23523996 (direct pulley replacement) and P/N 23509200 (requires shimming or shaft replacement)
- Confirm fitment with Kustom Truck for your specific engine and chassis
- Ideal for custom builds and fleet performance upgrades
Enhance your Detroit Series 60 engine with Kustom Truck Parts’ precision-engineered front engine upfit kit, trusted for quality and performance.
