Valve Stem Seals 8-97120307-0 For ISUZU

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Valve stem seals are an essential component in the successful functioning of an internal combustion engine. Their primary purpose is to keep oil from leaking out of the cylinder head between the valve and the valve guide. Valve stem seals help ensure oil is circulated efficiently throughout the engine, reducing internal friction and helping to maintain proper engine performance.

In addition to its primary purpose, a valve stem seal also serves as a heat insulator. As a result, it plays a vital role in keeping the cylinder head temperature at a constant level and even cooling down any excessive heat that may accumulate, resulting in less engine wear due to high temperatures.

Valve stem seals help to ensure that engine performance is consistently maintained and that a reliable seal is present between the cylinder head and the valve stem. Their importance should never be underestimated, as any problems within this part of the engine can lead to major performance issues or even complete engine failure.

NNK-CN OIL SEAL FACTORY Provides professional services.

13719-1020 Viton Valve Stem Seals For HINO

Product Identifiers

Valve stem seals control the lubrication of the valve stem as it slides in the valve guide. Too little oil causes stem and guide wear. Too much oil increases oil consumption and can cause a buildup of carbon, leading to valve seat damage and an early valve grind. Faulty valve stem seals increase oil consumption.Valve stem seals provide a defined metering rate of oil to the valve stem interface of internal combustion engines to lubricate the valve guide and minimize engine emissions. They are available for diesel and gasoline engines with and without boosting.

Thanks to our state of the art manufacturing technology and the extensive level of automation, we can provide seals with the highest quality. All seals are inspected automatically using computer vision techniques to ensure that the critical characteristics for the function of our seals are without defects. 

Valve stem seals are made from a variety of materials, including nylon, PTFE rubber, steel, and synthetic rubber. Sometimes these materials are combined into a single sophisticated design. When synthetic rubber is used, there are three basic types: nitrile, polyacrylate, and Viton.

Valve Stem Seals 8-97120307-0 For ISUZU

Non-integrated seal: fulfills the function of oil metering

Integrated seal: additionally incorporates a spring seat to prevent wear on the cylinder head
The optional low friction design features of SKF's high pressure valve stem seals can be incorporated into all available seal designs without any changes to existing installation equipment. Our new rubber material can even withstand the most aggressive oils in the market.

NNK is a brand of NOK-CN factory. Standard seals are developed or used according to specific customer requirements. All products use professional technology to ensure maximum sealing performance while reducing friction. NNK stem oil seal has excellent chemical resistance and temperature resistance . Consistent oil metering and long service life for optimal valve lubrication and minimal engine emissions.

Valve oil seal model：