The Ak-4 is Required For The Following blowers For The br-1 and Ob-1:�

5140117-15

Width : 2 1/4"

Lze801Gka60Ra1

Iz 5223 Kaa (968999207) S/N 033600000 &Amp

Proven Part 12In Bar and 1 Chain 3/8LP .050 44DL Fits Dolmar PS-351, PS-400, PS-401, PS-420, PS-421, PS-45 120SDEA041 305447-0133-E1 The Ak-4 is Required ForProven Part 12in Chainsaw Guide Bar With 1 Chain Construction: Laminate Length: 12in Pitch: 3 8LP Gauge:. 050 Drive Links: 44 Mount: A041 Sprockets: 7 Fits Dolmar 100, 101, 102, 103, 104, 105, 106, 108, 109, 110, 111, 112, 113, 114, 115, 116, 285, 295, ES 140, ES 151A, ES 152A, ES 160, ES 1600, ES 161, ES 161A, ES 162A, ES 171, ES 171A, ES 172A, ES 173, ES 173A, ES 3, ES 30, ES 35, PS 32, PS 33, PS 330, PS 3300TH, PS 34, PS 340, PS 3400TH, PS 341, PS