Application 1998.5 Dodge Pickup Truck 5.9L Diesel 24 Valve Engine 1998.5 Dodge Ram Truck 5.9L Diesel 24 Valve Engine ONLY for 5.9L Diesel - 24 Valve Engine [1998.5 Model Year] OEM REF# 40-30135 R , 3539343 , 3539344 , 3593887 , 3593888 , 3595019 , 3598125 , 3598126 , 3802946 , 4033608 , 4033630 , 65.091007054 , 65.09100-7054 , 65.091007075 , 65.09100-7075 , 65091007075 100% Brand NEW Aftermarket OEM replacement turbo For Cummins 6BT 5.9L ISB Diesel Engine Fits both Auto or Manual Transmission Replace Factory Turbo Frame Size turbine housing size HX35W 12CM2 Standard T3-4 bolt Flange .