Replacement Belt Set (8-Rib + 6-Rib) for Caterpillar C15 and 3406E Engines – 15.75" Fan Mounting Height.
This serpentine belt set is available in two configurations (side-mount A/C compressor or top-mount A/C compressor) and is designed for trucks with an 8/6 groove setup and a critical 15.75" fan mounting height (measured from crankshaft center to fan hub center).
Kit Includes (both variations):
- (1) 8-Rib Main Drive Belt
- (1) 6-Rib Accessory Belt
Compatibility:
- Caterpillar C15 and 3406E engines with 8/6 groove serpentine configuration
- Kenworth W900, Peterbilt 388, Peterbilt 389, and other models with 15.75" fan mounting height
Important Notes:
- Choose Side-Mount A/C or Top-Mount A/C variation when ordering.
- 15.75" fan mounting height is required for proper fitment.
- Contact Kustom Truck to confirm compatibility with your exact engine, fan height, and A/C compressor mounting configuration.
Key Specifications:
- 8-rib main drive belt + 6-rib accessory belt
- Designed for 15.75" fan mounting height
- Suitable for heavy-duty truck accessory drive systems