Replacement Belt Set (12-Rib + 6-Rib) for Cummins ISX Engines – 12" Fan Mounting Height, Side Mount A/C.
This serpentine belt set is designed for trucks with a 12/6 groove configuration and side mount pad style A/C bracket, using a critical 12" fan mounting height (measured from crankshaft center to fan hub center).
Kit Includes:
- (1) 12-Rib Main Drive Belt
- (1) 6-Rib Accessory Belt
Compatibility:
- Cummins ISX engines with 12/6 groove serpentine configuration and side mount pad style A/C bracket
- Kenworth T660, T800, Peterbilt 386, and other models with 12" fan mounting height
Important Notes:
- Configured specifically for side mount A/C bracket.
- 12" fan mounting height is required for proper fitment.
- Contact Kustom Truck to confirm compatibility with your exact engine, fan height, and A/C configuration.
Key Specifications:
- 12-rib main drive belt + 6-rib accessory belt
- Designed for 12" fan mounting height
- Suitable for heavy-duty truck accessory drive systems
1 year
