Oil Pump Worm Gear For T425 Chainsaw

This oil pump worm gear fits T425 chainsaw, constructed of high‑strength engineering plastic with embedded brass bushing. It serves as drive component for chainsaw oil pump. While engine running, crankshaft drives worm gear to activate oil pump and deliver lubricating oil to chain and guide bar, reducing friction wear. Long‑term high‑speed operation may cause tooth wear or chipping, resulting in no oil supply to chain, overheated bar and fast chain abrasion. Replace worm gear directly once teeth are damaged to restore oil pump lubrication performance. Manufactured according to original dimension for T425 chainsaw. Brass bushing reduces rotational friction and extends service life. Clean oil sludge inside housing during installation, ensure good meshing between worm gear and oil pump worm shaft. Compare tooth profile and bushing inner diameter with original part before ordering to prevent poor lubrication.