
Valve Stem Seals CENTAURO - set of 4 (Manufacturer part number: P650939/4): parts designed for engine restoration and aggressive reconditioning. These seals ensure tightness around the valve stem, limit oil leaks into the combustion chamber, and contribute to clean engine performance, whether in off-road or on-road use.
Designed by CENTAURO for use on intake and exhaust, these seals offer high thermal resistance and are suitable for sustained engine cycles. Delivered in sets of 4, they allow for quick replacement of worn components during preventive maintenance or a complete cylinder head overhaul.
Suitable for Cross and Roadster environments, these seals are ideal for riders seeking reliability and longevity during a cylinder head refurbishment. Examples of models for which this type of part is frequently used: SUZUKI RM-Z 250, YAMAHA YZF‑R125, and HONDA CB 1000 R.