View 1 Photo View 0 Videos Twin Disc TD61-1179 Transmission for a 2003 Western Star 6900 XD $5,995 USD TWIN DISC TD61-1179 6 SPEED WITH TORQUE CONVERTER, BEHIND 600HP ISX CUMMINS, WILL INSPECT, 90 DAY WARRANTY, Serial#: 3AN435, Engine Make: Cummins, Engine Model: ISX/Signature ConditionUsedEngine ModelCummins ISX/SignatureFits To Make(s)Western StarFits To Model(s)6900 XDWill Fit Year(s)2003Stock Number62324-2 MLS Number12963260CategoryTransmissions Last Updated3/12/2026 LocationUcon, ID, US Sold ByHolst Truck Parts (833) 541-___ SHOWNUMBERCall Seller Email Seller Save More Info