Chain lubrication oil pump for chainsaw model 360 390 370 41 0 FOR FOLLOWING BRANDS GGP ALPINA CAS TOR CASTEL STIGA CASTELGARDEN ORIGINAL CODE 4252220 4252221 CODE 392020 392021 also for models Oil pump for: 400 - 450 - 460 - 500 - 510 1. Diameter 8 mm code 392020 ORIGINAL 4252220 2. Diameter 9 mm code 392021 ORIGINAL 4250221 SELECT FROM THE TENDER MENU THE PUMP MODEL YOU WANT