Stihl OEM Oil Pump Assembly for 066, MS 650, 660 Chainsaws 1122 640 3205

OEM oil pump assemblies are a high quality replacement option for your Stihl chainsaws. Oil pumps are one of those wear items that get little attention until they quit working. Like all moving parts, they will eventually give out with prolonged use and need to be replaced, especially when running low quality bar oil or used motor oil. We recommend on having a back up oil pump in your shop, so you don't loose down time when it eventually goes out. This pump has a 0.9mm stroke (standard flow)