454 589 01 03 00 Open double hexagon box wrench - WS07.00-P-0117B
MODEL 451.390/392/490/492
MODEL 454 with ENGINE 639
FG 07/42/Set B
Open double-hexagon box wrench SW 14 model 454: for threaded connections for the injection lines. Model 451.390/392/490/492: for brake hose threaded connection on brake line on left rear