View 4 Photos View 0 Videos Cummins 6BT Engine Harmonic Balancer for a Cummins 6BT-5.9 Recently Updated $75 USD VIBRATION DAMPENER, CUM, 6BT 5.9, P/N 3918999 ConditionUsedFits To Make(s)CUMMINSFits To Model(s)6BT-5.9Stock Number1996124 MLS Number10836720CategoryEngine Harmonic Balancers Last Updated3/1/2026 LocationPortland, OR, US Sold ByLKQ Heavy Truck (855) 905-___ SHOWNUMBERCall Seller Email Seller Save More Info