Description
Valve stem seals are critical to preventing oil from seeping into your combustion chambers—a problem that degrades performance, increases emissions, and accelerates wear. The COMETIC Viton C9166 delivers the fuel-resistant durability and dimensional stability required for reliable sealing across extended high-heat cycles. Whether you’re building a race engine or restoring a performance platform, this seal resists creep, cracking, and brittleness under demanding conditions.
- Material: Premium Viton elastomer
- Fuel resistance: Full compatibility
- Creep resistance: Excellent
- Temperature range: Extended operating window
- MPN: C9166
- Installation: Standard press-fit
- Application: Check vehicle compatibility
- Longevity: Long-term reliability









