Amazon.com: Technology Parts Store Fuel Cap Gasket 0000-359-1220, 0000 359 1220, 00003591220 Compatible with STIHL Chainsaw Other Series. OEM : Patio, Lawn & Garden
Stihl TS400 Fuel Tank Cap O-Ring - 9645 951 3890 | GHS
NEW STIHL FUEL CAP O RING PN 9645 945 4050 FITS TS-350 | eBay
Genuine Factory Parts Gas Cap in the Small Engine Replacement Parts department at Lowes.com
Amazon.com: Replacement Parts, Chainsaw Fuel Tank Cap Sealing Ring for Stihl Ms 066 Ms660 0000 350 0531 : Patio, Lawn & Garden