This idler pulley is a direct-fit replacement for Cummins 6B 5.9, ISB, and QSB Marine engine series applications. It rotates freely on its bracket to keep the accessory drive belt aligned and properly tensioned across the drive system. Sold individually.
Interchanges:
- 3400883
- Cummins 3400884
Features
Fits Cummins 6B 5.9 engines
Fits Cummins ISB engines
Fits Cummins QSB Marine engine series
Sold individually, 1 each
