SR420 Oil Seal: The "Core Part Seal Protector" for Chainsaws

As a logging tool, the SR420 chainsaw’s poor sealing of core parts (crankshaft, drive shaft) directly affects operation—oil leakage reduces lubrication and dirties the body, while wood chips/dust wear precision parts. The SR420 dual-size oil seal set is designed to solve these pain points. The large and small seals in the set correspond to different core part seal positions of the chainsaw. The oil-resistant rubber body stays undamaged in long-term oil immersion, and the metal frame keeps the seal stable in the slot without loosening from vibration. Precisely sized to original slots, it fits tightly without adjustment, and the seal lip adheres closely to the shaft to seal gaps completely. Whether for high-intensity continuous logging or use in complex outdoor environments, this seal maintains stable sealing: no oil leakage, and no impurities to wear parts. Installation is simple—press it into the slot. With its "dual-position adaptation, oil-resistant/vibration-resistant, precise sealing" features, it’s a reliable seal protector for the SR420 chainsaw.