BOLD MAGENTA part numbers are new for 2023 PARTS-UNLIMITED.COM 2023 | OFFROAD PISTON & PISTON KITS CYLINDERS AND CYLINDER KITS (CONT) FITS MODEL DESCRIPTION COMPRESSION RATIO BORE (MM) PART # SUG. RETAIL HONDA (CONT) CRF250R 18-23 Standard Bore kit 13.9:1 79 0931-0845 $473.84 Standard Bore high-compression kit 14.6:1 79 0931-0846 504.95 +3mm Big Bore, 270cc kit 13.9:1 82 0931-08472 576.75 +3mm Big Bore gasket kit - - 0934-6344 61.76 CRF250RX 19-23 Standard Bore kit 13.9:1 79 0931-0845 473.84 Standard Bore high-compression kit 14.6:1 79 0931-0846 504.95 +3mm Big Bore, 270cc kit 13.9:1 82 0931-08472 576.75 +3mm Big Bore gasket kit - - 0934-6344 61.76 CRF250X 04-17 Standard Bore cylinder (only) - 78 0931-0128 279.90 Standard Bore kit 12.9:1 78 0931-0270 454.45 Standard Bore high-compression kit 13.4 78 0931-0289 484.14 +3mm Big Bore, 269cc kit 13.0:1 81 0931-01181 551.31 +3mm Big Bore gasket kit - - 0934-1521 51.46 CRF450R 02-06 Standard Bore cylinder (only) - 96 0931-0129 306.05 Standard Bore kit 12.1:1 96 0931-0272 494.85 Standard Bore high-compression kit 12.5:1 96 0931-0291 535.65 +4mm Big Bore, 488cc kit 12.1:1 100 0931-0119 582.52 Big Bore gasket kit - - 0934-1522 63.58 CRF450R 07-08 Standard Bore kit 12.1:1 96 0931-0839 494.85 Standard Bore high-compression kit 12.5:1 96 0931-0841 525.15 CRF450R 09-12 Standard Bore kit 12.0:1 96 0931-0273 525.15 Standard Bore cylinder (only) - 96 0931-0391 329.95 Big Bore gasket kit - - 0934-1927 90.85 CRF450R 13-16 Standard Bore kit 12.5:1 96 0931-0489 545.96 Standard Bore cylinder (only) - 96 0931-0391 329.95 + 3mm Big Bore, 478cc kit 12.0:1 99 0931-0488 648.98 Big Bore gasket kit - - 0934-1927 90.85 CRF450R/ RWE/RX 17-23 Standard Bore cylinder (only) - 96 0931-0712 319.95 CRF450R/RX 17-18 Standard Bore kit 13.5:1 96 0931-0713 535.25 Standard Bore high-compression kit 14.4:1 96 0931-0714 587.16 + 3mm Big Bore kit 13.51 99 0931-0715 648.98 +3mm Big Bore gasket kit - - 0934-6004 70.65 CRF450R/ RWE/RX 19-20 Standard Bore kit 13.5:1 96 0931-0840 556.26 +3mm Top-End gasket kit (not for RWE) - - 0934-6342 40.39 CRF450X 05-17 Standard Bore cylinder (only) - 96 0931-1013 319.95 Standard Bore kit 12.1:1 96 0931-0274 504.95 HUSQVARNA TC 50 17-23 Standard Bore cylinder (only) - 39.5 0931-1022 329.95 TC 50 Mini 18-22 Standard Bore cylinder (only) - 39.5 0931-1022 329.95 TC 65 17-23 Standard Bore cylinder (only) - 45 0931-1015 479.95 FC 250 16-22 Standard Bore cylinder (only) - - 0931-0716 409.95 Standard Bore kit 14.4:1 78 0931-0717 679.95 Standard Bore high-compression kit 14.7:1 78 0931-0718 699.95 + 3mm Big Bore kit 14.4:1 81 0931-0719 759.95 +3mm Big Bore gasket kit - - 0934-6005 114.95 FE 250 14-15 Standard Bore kit - 78 0931-0492 399.95 Standard Bore kit (uses Vertex #23235) 13.9:1 78 0931-0493 659.95 Standard Bore gasket kit - - 0934-3130 114.95 +3mm Big Bore, 270cc kit 13.9:1 - 0931-0491 739.95 FC 350 16-18 Standard Bore cylinder (only) - 88 0931-0720 399.95 Standard Bore kit 14.0:1 88 0931-0721 679.95 Standard Bore high-compression kit 15.1:1 88 0931-0722 699.95 + 2mm Big Bore kit 14.0:1 90 0931-0723 699.95 +2mm Big Bore gasket kit - - 0934-6006 109.95 FC/FX 350 19-21 Standard Bore kit 14.0:1 90 0931-0967 699.95 FE 350/S 20-23 Standard Bore kit 14.0:1 90 0931-0967 699.95 FITS MODEL DESCRIPTION COMPRESSION RATIO BORE (MM) PART # SUG. RETAIL KAWASAKI KX85 06-13 Standard Bore cylinder (only) 10:19.2:1 48.5 0931-0580 $422.93 Standard Bore kit 10:19.2:1 48.5 0931-0594 515.05 KX250F 04-08 Standard Bore cylinder (only) - 77 0931-0130 311.03 KX250F 04-05 Standard Bore kit 12.6:1 77 0931-0275 522.18 KX250F 06-08 Standard Bore kit 13.5:1 77 0931-0276 522.18 KX250F 04-08 +3mm Big Bore, 269cc kit 13.2:1 80 0931-0120 578.92 Big Bore gasket kit - - 0934-1525 74.12 KX250F 09 Standard Bore cylinder (only) - 77 0931-0398 319.95 Standard Bore kit 13.2:1 77 0931-0277 517.11 Standard Bore high-compression kit 13.9:1 77 0931-0295 537.71 +3mm Big Bore gasket kit - - 0934-1929 72.67 KX250F 10 Standard Bore cylinder (only) - 77 0931-0399 329.95 Standard Bore kit 13.2:1 77 0931-0341 517.11 +3mm Big Bore, 269cc kit 13.2:1 - 0931-0421 567.95 KX250F 11-14 Standard Bore cylinder (only) - 77 0931-0400 319.95 Standard Bore kit - 77 0931-0423 506.97 +3mm Big Bore, 269cc kit 13.5:1 80 0931-0424 578.92 KX250F 15-16 Standard Bore cylinder (only) - 77 0931-0400 319.95 Standard Bore cylinder kit 13.8:1 77 0931-0592 517.11 KX250F 17 Standard Bore cylinder (only) - 77 0931-0725 329.95 Standard Bore kit 13.7:1 77 0931-0726 515.95 +3mm Big Bore kit (Uses Vertex #24237) 13.7:1 80 0931-0724 593.34 +3mm Big Bore gasket kit - - 0934-6007 86.81 KX250F 18-19 Standard Bore cylinder (only) - 77 0931-0725 329.95 Standard Bore kit 13.4:1 77 0931-0727 535.65 Standard Bore high-compression kit - 77 0931-0729 587.16 +3mm Big Bore kit (Uses Vertex #24237) 13.7:1 80 0931-0724 593.34 +3mm Big Bore gasket kit - - 0934-6007 86.81 KLX400 03-04 Standard Bore cylinder (only) - 90 0931-0139 334.25 Standard Bore kit 11.3:1 90 0931-0283 533.23 +4mm Big Bore, 434cc kit 11.3:1 94 0931-0135 613.73 Big Bore gasket kit - - 0934-1527 83.78 KX450F 09-12 Standard Bore cylinder kit 13.2:1 96 0931-0596 515.05 Big Bore cylinder kit 12.5:1 98 0931-0603 575.65 Big Bore gasket kit - - 0934-4056 70.65 KX450F 13-14 Standard Bore cylinder kit 12.5:1 96 0931-0598 525.35 KX450F 15 Standard Bore cylinder (only) 12.8:1 96 0931-0582 329.95 Standard Bore cylinder kit 12.8:1 96 0931-0600 525.35 KTM 50 SX/SX Mini 09-22 Standard Bore cylinder (only) - 39.5 0931-1022 329.95 50 SX Pro Jr 09 Standard Bore cylinder (only) - 39.5 0931-1022 329.95 50 SXS 11-14 Standard Bore cylinder (only) - 39.5 0931-1022 329.95 65 SX 09-22 Standard Bore kit (uses Vertex #23430) - 45 0931-0500 599.95 Standard Bore cylinder (only) - 45 0931-1015 479.95 65 SXS 13-14 Standard Bore cylinder (only) - 45 0931-1015 479.95 65 XC 09 Standard Bore cylinder (only) - 45 0931-1015 479.95 250 EXC-F 14 Standard Bore kit - 78 0931-0492 399.95 Standard Bore kit (uses Vertex #23235) 13.9:1 78 0931-0493 659.95 Standard Bore gasket kit - - 0934-3130 114.95 +3mm Big Bore, 270cc kit 13.9:1 - 0931-0491 739.95 250 XC-F 06-12/250 SX-F 06-12 Standard Bore cylinder (only) - 76 0931-0404 399.95 Standard Bore kit 12.8:1 76 0931-0408 679.95 +3mm Big Bore, 276cc kit 12.8:1 - 0931-0411 719.95 Big Bore gasket kit - - 0934-2370 104.95 250 SX-F/XC-F 16-22 Standard Bore cylinder (only) - 78 0931-0716 409.95 Standard Bore kit 14.4:1 78 0931-0717 679.95 Standard Bore high-compression kit 14.7:1 78 0931-0718 699.95 +3mm Big Bore kit - - 0931-0719 759.95 +3mm Big Bore gasket kit - - 0934-6005 114.95 1 Requires case machining; instructions included. 2 For 19-21 models only. 1130
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