NOK Corporation

Valve stem seals provide a leak of the oil to keep the valve system lubricated. When the lubrication is in a controlled manner, this helps the valve guide to slide without any harm. Too much oil and it causes carbon buildup; too less of oil, and it causes the stem and guide wear.

Fitment Applications

For Isuzu FVZ & FVR model trucks with the 6HK1 engine.

Make: Isuzu

Model: FVZ; FVR with the 6HK1 engine

Years: 2013 To 2021