Replaces OEM: 596553364
PPBA18A0-RN-HV
Replaces Stihl Oem: 4002 713 9712
K5647-42103
AYP/Roper/Sears: 106412X Th4H690 583785901
Proven Part 20In Bar and 4 Chains .325 .063 81DL For Stihl MS270,270CQS, MS271, MS280MS, MS290 30030086821 PP30055_10-PP30056_10 Replaces OEM: 596553364Proven Part 20in Chainsaw Guide Bar With 4 Chains Construction: Laminate Length: 20in Pitch:. 325 Gauge:. 063 Drive Links: 81 Mount: D025 Sprockets: 12 Fits Stihl 024, 026, 028, 029, 030, 031, 032, 034, 036, MS260, MS261 (CM CMQ CQ), MS270 270CQS, MS271, MS280 MS280CQS, MS290 291, MS360 361 390 Compatible With Parts Numbers 30030086821