BOLD MAGENTA part numbers are new for 2026 PARTS-UNLIMITED.COM 2026 | OFFROAD PISTON & PISTON KITS PISTON & PISTON KITS 1408 FITS MODEL BORE (MM) X STROKE (MM) DISPL. (CC) BORE SIZE (MM) OVER SIZES (MM) PK KIT PART # PISTON PART # REPL. RING SET PART # REPL. CIRCLIPS PART # REPL. WRIST PIN PART # TOP-END BEARING PART # KAWASAKI 2-STROKE (CONT) KX125 93 54 124 54 STD - 626M05400 2126CS CW16 S-514 B1008 Electrofusion Bore - Cylinder sleeving or replating required for oversizes. x 54.5 54.5 55 0.5 1.0 - - - 626M05500 2146CS - Pro-Lite. KX125 94 54 124 54 STD - 640M05400 2126CS CW15 S-467 B1013 “A” Cylinder. x 54.5 0.5 - - 2146CS Electrofusion Bore - Cylinder sleeving or replating required for oversizes. 54.5 55 1.0 - - - Pro-Lite. KX125 95-97 54 124 54 STD - 652M05400 2126CS CW15 S-467 B1013 Electrofusion Bore - Cylinder sleeving or replating required for oversizes. Pro-Lite. x 54.5 0.5 - 652M05450 2146CS 54.5 55 1.0 - - - 56 2.0 - - 2205CS KX125 98 54 124 54 STD - - 2126CS CW15 S-467 B1013 Electrofusion Bore - Cylinder sleeving or replating required for oversizes. x 54.5 56 2.0 - 719M05600 2205CS Pro-Lite. KX125 99-00 54 124 54 STD 0903-0923 741M05400 2126CS CW15 S-467 B1013 Electrofusion Bore - Cylinder sleeving or replating required for oversizes. x 54.5 56 2.0 - 741M05600 2205CS Pro-Lite. KX125 01-05 58 144 58 4.0 - 0910-1239 2284CS CW15 S-467 B1013 Racer’s Choice GP Style. x Electra coated.ArmorGlide skirt coated. 54.5 No intake window pinned on centerline. KX125 01-02 54 124 54 STD 0903-0697 783M05400 2126CS CW15 S-467 B1013 Electrofusion Bore - Cylinder sleeving or replating required for oversizes. x 54.5 56 2.0 0903-0698 783M05600 2205CS Pro-Lite. KX125 03 54 124 54 STD - 822M05400 2126CS CW15 S-467 B1013 Nikasil Bore - Cylinder sleeving or replating required for oversizes. x 56 2.0 - - 2205CS 54.5 KX125 95-03 54 125 54 STD - 755M05400 2126CS CW15 S-467 B1013 Flat-top conversion. x 134 56 2.0 - 755M05600 2205CS No intake window pinned on centerline. 54.5 KX125 01-05 54 125 54 STD - 788M05400 2126CS CW15 - B1013 GP 125cc Style. Electra coated. x Electrofusion Bore - Cylinder sleeving or replating required for oversizes. 54.5 No crankcase modifications required. No intake window. KX125 04-05 54 124 54 STD - - 2126CS CW15 S-467 B1013 Nikasil Bore - Cylinder sleeving or replating required for oversizes. x 54.5 56 2.0 - 0910-0347 2205CS Pro Lite. KDX175 80-82 66 173 66 STD - - 2598CD CW16 S-2552 - x 67 1.0 - 469M06700 2638CD B10163 50.6 KDX200 86-06 66 198 66 STD - 711M06600 2598CD CW16 S-255 B1008 Electrofusion Bore - Cylinder sleeving or replating required for oversizes. x 58 66.5 67 0.5 1.0 - - 711M06650 711M06700 2618CD 2638CD Pro-Lite. KDX220 98-05 69 216 69 STD - 750M06900 2717CD CW16 - B1008 Electrofusion Bore - Cylinder sleeving or replating required for oversizes. x 58 69.5 70 0.5 1.0 - - - 750M07000 2736CD 2756CD Pro-Lite. KX250 78-86 70 249 70 STD - 439M07000 2756CD CW18 S-513 B1022X KDX250 80-84 x 70.5 0.5 - - 2776CD Electrofusion Bore - Cylinder sleeving or replating required for oversizes. 64.9 70.75 0.75 - - 2786CD 71 1.0 - - 2795CD 71.5 1.5 - - 2815CD 72 2.0 - - 2835CD KX250 87-89 67.4 249 67.4 STD - 556M06740 2652CD CW18 S-508 B1022X Electrofusion Bore - Cylinder sleeving or replating required for oversizes. Pro-Lite. *Limited to available stock. x 67.75 0.35 - - 2668CD 70 68 0.6 - - 2677CD 68.25 0.85 - - 2687CD 68.5 1.1 - 556M06850 2697CD 69 1.6 - - 2717CD 69.5 2.1 - - 2736CD HIGH-PERFORMANCE PISTONS (CONT) 2 Piston pin not included. 3 For 82 models.
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