1-87813766-2 1878137662 Liner Kit for Isuzu 4HK1 6HK1 ZX200-3 ZX330-3

A metal ring used to be embedded inside the piston groove. There are two types of piston rings: compression rings and oil rings. The compression ring is used to seal the combustible mixture in the combustion chamber; the oil ring is used to scrape excess oil from the cylinder.

The cylinder liner is a cylindrical part that is placed in the cylinder block hole of the engine body and is pressed and fixed by the cylinder head. The piston reciprocates in its inner hole and is cooled by cooling water on the outside.

The piston ring is a metal elastic ring with large outward expansion deformation. It is assembled into an annular groove corresponding to its cross section. The reciprocating and rotating piston ring relies on the pressure difference of gas or liquid to form a seal between the outer circumferential surface of the ring and one side of the cylinder and the ring and the ring groove.