HIPA Pack of 2 Gas Cap for STIHL MS270 MS280 MS290 MS310 MS340 MS341 MS360 MS361 MS390 MS440 MS460 Chainsaw Replacement manufacturer part number: 0000 350 0525 Compatible with STIHL MS270 MS280 MS290 MS310 MS340 MS341 MS360 MS361 MS390 MS440 MS460 chainsaw The cap top diameter (O.D.): 1-11/16 inch Package include: 2 gas cap