Cylinder Block This is cylinder head and block for Cummins 4BT, 6BT, 6CT and 6L engine. Cylinder BlockRemarks:cummins engine cylinder blockOEM service offered, design service ... liner, crankshaft, camshaft, cylinder head, cylinder block, connecting rod, main bearing, crankshaft bearing, connecting rod bearing, vribbed belt, belt tensioner, water pump, lubricating oil pump ...