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Valve Seal

Unlike other seals in the engine, valve seal (valve stem seal) plays an essential role in lubrication. They control the amount of oil passing through the sealing lips to lubricate the interface between the valve stem and the valve guide of an engine. Too much oil would lead the engine to lose power or cause engine failure. Too little oil, which the valve would be not sufficiently lubricated and become worn.

When valve seals begin to wear or fail, there are some obvious and unique symptoms such as producing a blueish smoke out of the tailpipe when starting the engine, no oil leaks are found but noticeable oil reduction, etc.

Because of the high-temperature resistance requirement of valve seals, we manufacture the seals with FKM material, and it can resist the heat up to 250°C. We manufacture Valve Seals (Valve Stem Seals) for engines such as:

  • Caterpillar – D3500 Series
  • Cummins – N14, ISX15, ISB
  • Detroit Diesel – S60
  • Navistar – DT466E
  • Komatsu Engines

If there are no products on the following list you need, please directly contact us.

1 Products Found

23523930 Valve Seal for Detroit Diesel

For more information on our full product range, including those that aren't featured here on our product list. You can:
  • Search part number required in the search bar above.
  • Contact us
The part numbers of original manufacturers are for reference purposes only. Each part shown will fit the brand application mentioned in its name. MJ Gasket is not affiliated with any of the listed original part manufacturers. Brand names and trademarks mentioned are owned by the individual companies.
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