Offroad 2019

427 2019 OFFROAD CATALOG ENGINE accessories body handlebar & grips cables & levers engine fuel & intake electrical & ignition clutch drive bearings brakes steering & suspension tires exhaust chemicals tools & shop MODEL YEAR- RANGE VERSION COMP. RATIO CYL- INDER BORE( MM) PISTON DIAM. (MM) DIS- PLACE- MENT SIZE OVER STD TOP END PISTON KIT PART NO. PISTON KIT PART NO. REPLACE- MENT RING(S) PART NO. WRIST PIN PART NO. CIR- CLIP PART NO. YAMAHA CONTINUED YZ 250F 08-13 FORGED REPLICA 13.5:1 77 76.95 250 STD 901369 901628 901040 901675 YZ 250F 08-13 FORGED REPLICA 13.5:1 77 76.96 250 STD 901370 901628 901040 901675 YZ 250F 08-13 FORGED REPLICA 13.5:1 77 76.97 250 STD 901962 901628 901040 901675 YZ 250F 08-13 FORGED REPLICA 13.5:1 77 76.98 250 STD 901963 901628 901040 901675 YZ 250F 14-15 FORGED HIGH COMP 14.2:1 77 76.95 250 901950 903331 901666 901675 YZ 250F 14-15 FORGED HIGH COMP 14.2:1 77 76.96 250 901951 903331 901666 901675 YZ 250F 14-15 FORGED HIGH COMP 14.2:1 77 76.97 250 901952 903331 901666 901675 YZ 250F 14-15 FORGED HIGH COMP 14.4:1 77 76.95 250 901953 903331 901666 901675 YZ 250F 14-15 FORGED HIGH COMP 14.4:1 77 76.96 250 901954 903331 901666 901675 YZ 250F 14-15 FORGED HIGH COMP 14.4:1 77 76.97 250 901955 903331 901666 901675 YZ 250F 14-15 FORGED REPLICA 13.5:1 77 76.95 250 901959 871968 901666 901675 YZ 250F 14-15 FORGED REPLICA 13.5:1 77 76.96 250 901960 871968 901666 901675 YZ 250F 14-15 FORGED REPLICA 13.5:1 77 76.97 250 901961 871968 901666 901675 YZ 250F 14-18 FORGED BIG BORE 13.5:1 80 79.95 270 3 901947 901604 901666 901675 YZ 250F 14-18 FORGED BIG BORE 13.5:1 80 79.96 270 3 901948 901604 901666 901675 YZ 250F 14-18 FORGED BIG BORE 13.5:1 80 79.97 270 3 901949 901604 901666 901675 YZ 250F 15-18 FORGED PRO BIG BORE 14.4:1 80 79.96 270 3 903645 901605 871963 901675 YZ 250F 15-18 PRO HIGH COMP 13.8:1 77 76.96 250 903644 903331 871963 901675 YZ 250F 16-18 FORGED HIGH COMP 14.2:1 77 76.95 250 903638 903331 901675 YZ 250F 16-18 FORGED HIGH COMP 14.2:1 77 76.96 250 903639 903331 901675 YZ 250F 16-18 FORGED HIGH COMP 14.2:1 77 76.97 250 903640 903331 901675 YZ 250F 16-18 FORGED HIGH COMP 13.7:1 77 76.95 250 903641 903331 901675 YZ 250F 16-18 FORGED HIGH COMP 13.7:1 77 77.96 250 903642 903331 901675 YZ 250F 16-18 FORGED HIGH COMP 13.7:1 77 76.97 250 903643 903331 901675 YZ 250F 16-18 FORGED REPLICA 13.5:1 77 76.95 250 903635 903331 901675 YZ 250F 16-18 FORGED REPLICA 13.5:1 77 76.96 250 903636 903331 901675 YZ 250F 16-18 FORGED REPLICA 13.5:1 77 76.97 250 903637 903331 901675 YZ 250FX 15 FORGED HIGH COMP 14.2:1 77 76.95 250 901950 903331 901666 901675 YZ 250FX 15 FORGED HIGH COMP 14.2:1 77 76.96 250 901951 903331 901666 901675 YZ 250FX 15 FORGED HIGH COMP 14.2:1 77 76.97 250 901952 903331 901666 901675 YZ 250FX 15 FORGED HIGH COMP 14.4:1 77 76.95 250 901953 903331 901666 901675 YZ 250FX 15 FORGED HIGH COMP 14.4:1 77 76.96 250 901954 903331 901666 901675 YZ 250FX 15 FORGED HIGH COMP 14.4:1 77 76.97 250 901955 903331 901666 901675 YZ 250FX 15 FORGED REPLICA 13.5:1 77 76.95 250 901959 871968 901666 901675 YZ 250FX 15 FORGED REPLICA 13.5:1 77 76.96 250 901960 871968 901666 901675 YZ 250FX 15 FORGED REPLICA 13.5:1 77 76.97 250 901961 871968 901666 901675 YZ 250FX 15-18 FORGED BIG BORE 13.5:1 80 79.95 270 3 901947 901604 901666 901675 YZ 250FX 15-18 FORGED BIG BORE 13.5:1 80 79.96 270 3 901948 901604 901666 901675 YZ 250FX 15-18 FORGED BIG BORE 13.5:1 80 79.97 270 3 901949 901604 901666 901675 YZ 250FX 16-18 FORGED HIGH COMP 14.2:1 77 76.95 250 903638 903331 901675 YZ 250FX 16-18 FORGED HIGH COMP 14.2:1 77 76.96 250 903639 903331 901675 YZ 250FX 16-18 FORGED HIGH COMP 14.2:1 77 76.97 250 903640 903331 901675 YZ 250FX 16-18 FORGED HIGH COMP 13.7:1 77 76.95 250 903641 903331 901675 YZ 250FX 16-18 FORGED HIGH COMP 13.7:1 77 77.96 250 903642 903331 901675 YZ 250FX 16-18 FORGED HIGH COMP 13.7:1 77 76.97 250 903643 903331 901675 YZ 250FX 16-18 FORGED REPLICA 13.5:1 77 76.95 250 903635 903331 901675 YZ 250FX 16-18 FORGED REPLICA 13.5:1 77 76.96 250 903636 903331 901675 YZ 250FX 16-18 FORGED REPLICA 13.5:1 77 76.97 250 903637 903331 901675 YZ 400F 98-99 FORGED REPLICA 12.5:1 92 91.93 400 901173 901644 901045 901939 YZ 426F 00-02 FORGED REPLICA 12.5:1 95 94.93 426 901179 901647 901016 901684 YZ 450F 03-05 FORGED REPLICA 12.5:1 95 94.95 450 STD 903456 YZ 450F 03-05 FORGED REPLICA 12.5:1 95 94.94 450 STD 903455 YZ 450F 03-05 FORGED REPLICA 12.5:1 95 94.93 450 STD 903454 YZ 450F 03-09 FORGED BIG BORE 12.5:1 98 97.96 478 3 901380 901622 901041 901682 YZ 450F 03-09 FORGED BIG BORE 12.5:1 98 97.97 478 3 901381 901622 901041 901682 YZ 450F 03-09 FORGED BIG BORE 12.5:1 98 97.98 478 3 901382 901622 901041 901682 YZ 450F 03-09 FORGED RACE 13.5:1 95 94.93 450 901212 901615 901041 901682 YZ 450F 03-09 FORGED RACE 13.5:1 95 94.94 450 901213 901615 901041 901682 YZ 450F 03-09 FORGED RACE 13.5:1 95 94.95 450 901214 901615 901041 901682 YZ 450F 03-09 FORGED RACE 13.5:1 95 94.96 450 901215 901615 901041 901682 YZ 450F 03-09 FORGED REPLICA 12.5:1 95 94.93 450 STD 901223 901646 901041 901682 YZ 450F 03-09 FORGED REPLICA 12.5:1 95 94.94 450 STD 901224 901646 901041 901682 YZ 450F 03-09 FORGED REPLICA 12.5:1 95 94.95 450 STD 901225 901646 901041 901682 YZ 450F 03-09 FORGED REPLICA 12.5:1 95 94.96 450 STD 901226 901646 901041 901682 PISTONS