OEM Part No: 16B0LSPO, 1609K166TC, 16K041K1TC, ET1650SH, 16PKU50SPNJ, 160SLGK041, 160VXLGK041Archer Timber Max .325 – .050Fits Zenoah models G451AVS-16, GZ4000Fits Komatsu models G451AVS-16, GZ4000Fits Redmax models G451AVS-16, GZ4000Fits Echo models CS3600, CS3700, CS3900, CS400EVL, CS440EVL, CS450, CS4000, CS4010, CS4100, CS420ES, CS4200, CS4400, CS4500, CS4510, CS4600, CS4601, CS510, CS520, CS5000, CS5100Fits Efco models 140SFits John Deere models 45EV, 76EV, 450V, 300CS, 350CS, 46EVFits Oleo Mac models 940C, 941CXFits Olympyk models 940CFits Shindaiwa models 100, 102, 103, 104, 105, 107, 110, 113, 117, E120, 140, E150, 160, E180, 291, 300, 301, 305, 340, 345, 346, 350, 352, 355, 357, 360, 366, 377, 391, 394, 400, 401, 415, 416, 420, 440, 450, 451, 488, 500, 510, 560, 580, A180B, YB501, YB601, YB701, YB495, YB691, YB377