Malossi 50cc revision Crankshaft oil sealsRef : MAL00809A / 1138504

Malossi oil seal for 50cc engine revision — Manufacturer ref: 6619820. Designed for the maintenance of the bottom end of 50 cm³ engines, this Malossi oil seal is aimed at urban riders looking for a quality replacement part derived from the brand's racing experience.

This oil seal combines materials and geometry designed to ensure sealing between the shaft and the engine casing. The entire body is moulded from fluorinated elastomer (FKM), known for its resistance to hydrocarbons and its stability over a wide temperature range (-15 °C to +210 °C). The metal insert ensures a precise mechanical fit, while the internal stainless steel spring maintains the contact pressure of the sealing lip over time.

• Application: bottom end oil seal for 50cc revision (sold individually).
• Material: FKM (fluorinated elastomer) — high resistance to oils and fuels.
• Components: steel insert + stainless steel spring for lip retention.
• Indicated operating range: -15 °C to +210 °C; compatible operating speeds indicated by the manufacturer up to 35–40 m/s.
• Packaging: sold individually.

Common compatibilities (examples): VENT DERAPAGE 50 RR (2025), SHERCO SM 50 RS SILVER (2024), MINARELLI AM6 (2024). A useful part during an engine revision to maintain sealing and limit oil leaks at the crankshaft.