Optimize your truck’s performance with the Kustom Truck Replacement Belt Set, designed for heavy-duty trucks equipped with a Cummins ISX engine featuring a 12/6 groove serpentine belt configuration and a side mount pad style A/C mounting bracket, such as Kenworth W900L or Peterbilt 388 and 389 models. This belt set includes a 12-rib main drive belt and a 6-rib A/C belt, engineered for a 15.75" fan mounting height (measured from the center of the crankshaft to the center of the fan hub), the critical dimension for compatibility, ensuring precise fitment and reliable operation. Ideal for mechanics and fleet owners performing maintenance or upgrades, this belt set offers durable construction to withstand heavy-duty applications. Note: Belt lengths are configured specifically for a 15.75" fan mounting height and side mount A/C bracket configuration. If uncertain about compatibility with your specific engine, fan height, or A/C mounting configuration, contact Kustom Truck for fitment confirmation. Perfect for maintaining optimal engine accessory performance, this belt set delivers consistent and dependable performance.
Kit Includes:
- (1) 12 Rib Main Drive Belt
- (1) 6 Rib A/C Belt
Key Features:
- Replacement belt set for heavy-duty trucks with Cummins ISX engine, such as Kenworth W900L or Peterbilt 388 and 389
- Designed for 12/6 groove serpentine belt configuration and side mount pad style A/C bracket
- Configured for 15.75" fan mounting height (center of crankshaft to center of fan hub), the critical compatibility measurement
- Durable construction for heavy-duty applications
- Ideal for engine maintenance or upgrades
- Suitable for various Kenworth and Peterbilt models with matching specifications
- Note: Confirm fitment with Kustom Truck for 15.75" fan mounting height and side mount A/C bracket configuration
- Engineered for precise fitment and reliable performance
Enhance your truck’s accessory drive system with Kustom Truck Parts’ Replacement Belt Set, crafted for durability and precision.
