Stihl 26RS 74 Chainsaw Chain Rapid Super 18" Bar, .325, Pitch, .063 Gauge Only Fits 18" Bar Farm Boss Series, Stihl Chainsaw Models 024, 026, 028, 034, 036, MS241, MS260, MS261, MS270, MS271, MS290, MS291 Genuine Stihl Chainsaw Chain Please Check Your Stihl Bar to Verify Correct Chain .325, Pitch, .063 Gauge