OIL SEAL VALVE 8973767200 suitable for NPR models equipped with 700P 4HK1 engine

Product Design Philosophy

FKM rubber valve stem oil seal with seat for 4HK1 engines. The integrated seat ensures precise alignment on the valve guide, while FKM material withstands high temperatures and prevents oil from entering the combustion chamber.

How it works

Installed on the valve guide with integrated seat. The rubber lip tightly wraps around the valve stem, scraping excess oil back into the cylinder head while allowing the valve to slide smoothly.

Problems the product can solve

Fixes blue exhaust smoke, excessive oil consumption, and carbon buildup caused by worn valve seals. Restores proper oil control and reduces emissions in 700P trucks.