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here are some models
Isuzu D-Max: 4JJ1, 4JK1
Isuzu MU-X: 4JJ1
Isuzu NPR: 4HK1, 4JJ1
Isuzu NQR: 4HK1, 4JJ1
Isuzu FRR: 6HK1
ISUZU Piston Ring Set is a set of rings that are installed around the piston of an ISUZU engine. The purpose of these rings is to seal the combustion chamber, preventing the leakage of gases from the combustion process and to regulate the amount of oil that lubricates the cylinder wall.
The piston ring set usually consists of three types of rings: the compression rings, the oil control rings, and the scraper rings. The compression rings are the top rings that seal the combustion chamber, and they transfer heat from the piston to the cylinder wall. The oil control rings, which are located below the compression rings, control the amount of oil that enters the combustion chamber and scrape excess oil off the cylinder wall. The scraper rings, which are located at the bottom of the piston, prevent oil from entering the combustion chamber and remove excess oil from the cylinder wall.


