Valve Stem Seal (VSS)
Designed to control how much oil lubricates the Valve Stem, Valve Stem Seal plays an important role in lubrication. VSS allow a controlled amount of oil to lubricate the valve stem as it moves in the valve guide. It is a crucial component in internal combustion engine, ensuring optimal lubrication of valve guides while regulating oil flow to minimize stem wear and carbon buildup. They effectively seal off the combustion chamber from the crankcase, reducing friction, power loss, and emissions. Without these seals controlling the flow of oil, it can cause many issues like excess oil in the combustion chamber, fouled spark plugs, increased oil consumption and catalytic converter degradation.
- Original Equipment (OE) design which ensures compatibility across all applications
- Available in nylon, PTFE, rubber, steel, and FKM fluoroelastomer materials to meet specific requirements
- Regulates oil flow to prevent stem wear and carbon buildup
- Offers two main designs: deflector (umbrella) seals and positive seals for diverse engine needs
- Each set includes a plastic sleeve tool for easy and secure installation
- Long term emission control
- Minimum friction to reduce the engine power loss
What is FKM?
FKM rubber, also known as Viton or Fluoro-Elastomer. It utilizes high-quality FKM rubber (Viton®), known for its exceptional durability and resistance to high temperatures and chemicals.
Inside Valve Stem Seal: Rubber Properties
Valve stem seals are made from a variety of materials:
- Nylon
- PTFE rubber
- Nitrile rubber
- Polyacrylate rubber
- Viton® rubber
Viton is the best material currently available for use in many of today’s hotter-running engines, particularly the smaller domestic and imported models. It is often combined with a “metal jacket” or covering that surrounds the Viton positive seal. Viton offers excellent resistance to both heat (up to 450 F) and abrasion and is the material of choice for most valve stem seals.
| Part Number | Vehicle Application | Measurement (OD*ID*HT) |
Product Images |
|---|---|---|---|
| GVSS1001 | Hero Honda CD100/ SS/ Splendor/ Super Splendor/Passion Pro Honda Unicorn/Honda Shine/Honda Activa |
10.30*7.50*8 | 
|
| GVSS1002 | Bajaj Eliminator/Wind/XCD/DTSi/Compact BS3 | 9.50*7.20*8 | 
|
| GVSS1003 | Bajaj Kawasaki 4S/ Champion/ Platina/ CT100/ Compact BS4/ RE | 10.75*8.15*8.30 | 
|
| GVSS1004 | TVS Victor/ City/ Fiero/ Centra/ Apache/ Jupiter | 9.50*7.10*8.70 | 
|
| GVSS1005 | Yamaha Motor | 9.50*7.10*8 | 
|
| GVSS1006 | Hero Glamour/ SS/ Xtream-BS6 160 | 10.30*7.20*8 | 
|