... 1. It is Cummins 6CT8.3 engine valve seat 2. It is used with 6CT8 engine valve ... auto engine valve, piston, piston ring, piston pin, cylinder liner, crankshaft, camshaft, cylinder head, cylinder block, connecting rod, ... tensioner, water pump, lubricating oil pump, engine valve seat, engine valve oil seal, engine valve guide, fuel transfer ... TENSIONER Cummins 6CT8.3 Engine Valve Seat 3908830 &3928174