Optimize your truck’s performance with the Kustom Truck Replacement Belt Set, designed for heavy-duty trucks equipped with a Caterpillar C15 or 3406E engine featuring a 12/6 groove serpentine belt configuration, such as Kenworth W900L or Peterbilt 388 and 389 models. Available in two variations—one for a side mount A/C compressor and another for a top mount A/C compressor, both belt sets achieving a 15.75" fan mounting height (measured from the center of the crankshaft to the center of the fan hub)—this kit includes a 12-rib main drive belt and a 6-rib accessory belt, ensuring precise fitment and reliable operation. The 15.75" fan mounting height is the critical dimension for compatibility. 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. Specify side mount or top mount A/C compressor when ordering and confirm compatibility with your specific engine, fan height, or A/C mounting configuration by contacting Kustom Truck for fitment verification. Perfect for maintaining optimal engine accessory performance, this belt set delivers consistent and dependable performance.
Kit Includes (for both Side Mount and Top Mount Variations):
- (1) 12 Rib Main Drive Belt
- (1) 6 Rib Accessory Belt
Key Features:
- Replacement belt set for heavy-duty trucks with Caterpillar C15 or 3406E engine, such as Kenworth W900L or Peterbilt 388 and 389
- Available in two variations: one for side mount A/C compressor and another for top mount A/C compressor, both achieving a 15.75" fan mounting height
- Designed for 12/6 groove serpentine belt configuration
- 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: Specify side mount or top mount A/C compressor; confirm fitment with Kustom Truck for 15.75" fan mounting height and 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.
