BOLD MAGENTA part numbers are new for 2023 PISTON & PISTON KITS PARTS-UNLIMITED.COM OFFROAD | 2023 PISTON KITS, RINGS,WRIST PINS AND CIRCLIPS continued on next page. PISTON KITS, RINGS,WRIST PINS AND CIRCLIPS (CONT) FITS MODEL DIAMETER (MM) PISTON VERSION PISTON PART # RING SET PART # WRIST PIN PART # CIRCLIP PART # YAMAHA (CONT) YZ125 05-21 53.94 Cast Replica 0910-0966 0912-0170 0913-0019 0913-0054 YZ125 05-21 (+4mm Big Bore) 57.95 Forged Race 0910-0967 0912-0173 - 0913-0054 57.96 Forged Race 0910-2117 0912-0173 - 0913-0054 YZ125X 20-21 53.94 Cast Replica 0910-0966 0912-0170 0913-0019 0913-0054 YZ125X 20-21 (+1mm Big Bore) 54.95 Cast Big Bore 0910-3343 0912-0464 0913-0019 0913-0049 55.95 Cast Big Bore 0910-3344 0912-0366 0913-0019 0913-0049 YZ125X 20-21 (+4mm Big Bore) 57.95 Forged Race 0910-0967 0912-0173 - 0913-0054 57.96 Forged Race 0910-2117 0912-0173 - 0913-0054 YZ250 90-95/WR250 91-95 67.95 Cast Replica 0910-0968 0912-01782 - 0913-0056 YZ250/WR250 96-97 67.94 Cast Replica 0910-2541 0912-01782 - 0913-0056 67.95 Cast Replica - 0912-01782 - 0913-0056 YZ250/X 99-22 66.34 Cast Replica 0910-2542 0912-01752 0913-0038 0913-0056 66.35 Cast Replica 0910-0970 0912-01752 0913-0038 0913-0056 YZ250F/WR250F 01-04 (compression 12.7:1) 76.94 Forged Replica - 0912-0226 - 0913-0049 76.95 Forged Replica 0910-0971 0912-0226 - 0913-0049 76.96 Forged Replica - 0912-0226 - 0913-0049 76.97 Forged Replica - 0912-0226 - 0913-0049 YZ250F 01-07,WR250F 01-13 (high compression 13.5:1) 76.94 Forged High Comp - 0912-02263 - 0913-0049 76.96 Forged High Comp - 0912-02263 - 0913-0049 76.98 Forged High Comp - 0912-02263 - 0913-0049 YZ250F 05-07,WR250F 05-13 (compression 12.5:1) 76.94 Forged Replica - 0912-0226 - 0913-0049 76.95 Forged Replica - 0912-0226 - 0913-0049 76.96 Forged Replica - 0912-0226 - 0913-0049 76.97 Forged Replica - 0912-0226 - 0913-0049 YZ250F 05-07/WR250F 05-13 (+3mm Big Bore) 79.96 Forged Big Bore - 0912-0308 - - 79.97 Forged Big Bore - 0912-0308 - - 79.98 Forged Big Bore - 0912-0308 - - YZ250F 08-13 (compression 13.5:1) 76.95 Forged Replica - 0912-0226 - 0913-0049 76.96 Forged Replica - 0912-0226 - 0913-0049 76.97 Forged Replica - 0912-0226 - 0913-0049 76.98 Forged Replica - 0912-0226 - 0913-0049 YZ250F 08-13 (high compression 14.2:1) 76.95 Forged High Comp 0910-26204 - 0913-0104 - YZ250F 14-15 76.95 Forged Replica 0910-3345 - - - 76.96 Forged Replica 0910-3346 - - - 76.97 Forged Replica 0910-3347 - - - YZ250F 14-15 (high compression 14.2:1) 76.95 Forged High Comp 0910-3348 - - - 76.96 Forged High Comp 0910-3349 - - - 76.97 Forged High Comp 0910-3350 - - - 76.95 Forged High Comp 0910-3351 0912-0634 - - 76.96 Forged High Comp 0910-3352 0912-0634 - - 76.97 Forged High Comp 0910-3353 0912-0634 - - YZ250F 14-18,YZ250FX 15-18,WR250F 18 (Big Bore) 79.96 Forged Big Bore 0910-3354 0912-0308 - - 79.97 Forged Big Bore 0910-3355 0912-0308 - - YZ250F 17-18 76.95 Pro High Comp 0910-5189 - - - 76.96 Pro High Comp Big Bore 0910-5190 - - - YZ400F 98-99/WR400F 98-00 91.93 Forged Replica 0910-1902 - - - YZ426F 00-02/WR426F 01-02 94.93 Forged Replica - 0912-0321 - 0913-0060 YZ450F 03-09/WR450F 03-14 (compression 12.5:1) 94.93 Forged Replica - 0912-0238 - 0913-0056 94.94 Forged Replica - 0912-0238 - 0913-0056 94.95 Forged Replica - 0912-0238 - 0913-0056 94.96 Forged Replica - 0912-0238 - 0913-0056 YZ450F 03-09/WR450F 03-14 (high compression 13.5:1) 94.94 Forged High Comp 0910-2120 0912-02172 - 0913-0056 94.95 Forged High Comp - 0912-02172 - 0913-0056 94.96 Forged High Comp 0910-2129 0912-02172 - 0913-0056 YZ450F 03-09/WR450F 03-14 (+2mm Big Bore) 96.96 Forged Big Bore 0910-2121 - - 0913-0056 YZ450F 03-09/WR450F 03-14 (+3mm Big Bore) 97.96 Forged Big Bore 0910-19631 0912-0313 - 0913-0056 97.97 Forged Big Bore - 0912-0313 - 0913-0056 97.98 Forged Big Bore - 0912-0313 - 0913-0056 YZ450F 03-09/WR450F 03-14 (+5mm Big Bore) 99.96 Forged Big Bore - 0912-0297 - 0913-0056 YZ450F 10-13 96.93 Forged Replica - 0912-0352 0913-0110 0913-0056 96.94 Forged Replica - 0912-0352 0913-0110 0913-0056 96.95 Forged Replica - 0912-0352 0913-0110 0913-0056 96.96 Forged Replica - 0912-0352 0913-0110 0913-0056 YZ450F 10-13 (high compression 13.5:1) 96.93 Forged High Comp - 0912-0582 0913-0110 0913-0056 96.94 Forged High Comp - 0912-0582 0913-0110 0913-0056 96.96 Forged High Comp - 0912-0582 0913-0110 0913-0056 YZ450F 10-13 (high compression 13.6:1) 96.94 Forged High Comp 0910-26244 0912-0582 0913-0105 - YZ450F 10-15 (+2mm Big Bore) 98.94 Forged Big Bore 0910-2575 - 0913-0110 0913-0056 1 Replacement Cylinder Works Big Bore pistons. 2 Require two rings per piston. 3 Require three rings per piston. 4 Features new T-box forgings and DLC-coated wrist pins on forged pistons with highest compression ratios for increased strength and performance. 1197
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