BOLD MAGENTA part numbers are new for 2025 PISTON & PISTON KITS PARTS-UNLIMITED.COM OFFROAD | 2025 PISTON & PISTON KITS 1339 HIGH-PERFORMANCE 4-STROKE PISTON KITS BY CP PISTONS (CONT) PISTON KITS continued on next page. FITS MODEL BORE SIZE PISTON KIT PART # REPL.WRIST PIN PART # REPL. CIRCLIPS PART # REPL. RINGS PART # KAWASAKI (CONT) KX450F 12.5:1 19-23 Piston 96 mm std bore 0910-6503 - 0913-0072 0912-0602 KX450F 13.5:1 19-23 Piston 96 mm std bore 0910-6504 0913-0063 0913-0072 0912-0602 KX450F 14:1 19-23 Pro Race Piston 96 mm std bore 0910-6505 - 0913-0072 0912-0602 KTM 250 SX-F 13.5:1 06-10 76 mm std bore - - 0913-0071 - 250 SX-F 14.7:1 16-23 Pro Race Piston 78 mm std bore 0910-6499 - 0913-0071 0912-0239 450 SX-F 13.5:1 16-24 Pro Race Piston 95 mm std bore 0910-65002, 3 0913-0063 0913-0072 0912-0603 SUZUKI RM-Z250 13.5:1 10-23 77 mm std bore 0910-6484 - 0913-0071 0912-0241 DR-Z400S 00-09, DR-Z400E 00-07, DR-Z400 00-04 - - - - 0912-0333 RM-Z450 13:1 08-23 96 mm std bore 0910-6469 0913-0063 0913-0072 0912-0247 YAMAHA YZ250F/WR250F 13.5:1 05-13 77 mm std bore 0910-6472 - 0913-0071 0912-0241 YZ250F 14.5:1 14-18 77 mm std bore 0910-64942, 3 - 0913-0071 0912-0241 YZ250F 14:1 19-23 77 mm std bore 0910-6516 - 0913-0071 0912-0241 YZ250F 14.3.1 19-23 Race Piston kit 77 mm std bore 0910-65172, 3 - 0913-0071 0912-0241 YZ450F/WR450 13.5:1 03-09 95 mm std bore 0910-6473 - - 0912-0244 YZ450F 13:1 10-19 Race Piston 97 mm std bore 0910-64832 - - - YZ450F 13.5.1 20-22 97 mm std bore 0910-6520 - - - YZ450F 14.3.1 Pro Race Piston 20-22 97 mm std bore 0910-65212, 3 - - - 2 Piston comes with standard skirt coating. 3 Use race fuel only. PISTON KITS •Gravity-cast aluminum alloy with 18% silicon to increase resistance to wear and decrease thermal distortion, thus providing a longer piston life • Coated skirts ease break-in, decreasing wear and aiding in lubrication •Wear-resistant piston rings that are either nitride- or chrome-plated • Wrist pins are nitride-coated, providing a hardened, wear-resistant bearing surface •Piston rings are compatible with OEM pistons •Replacement rings are sold individually • Piston kits include piston, rings, wrist pin and circlips 0910-2684 FITS MODEL PISTON DIA. (MM) PISTON KIT PART # REPL. RINGS PART # REPL.WRIST PIN PART # REPL. CIRCLIPS PART # BETA RR 2T 125 18-23 53.96 - - - 0913-0190 RR 2T 250 13-17 66.36 - 0912-0405 - - RR 2T 250 18-23 66.36 0910-6021 0912-0405 - - RR 2T 300 13-17 71.96 0910-6022 0912-0407 - - RR 2T 300 18-21 71.96 0910-6023 0912-0407 - - RR 2T 22-23 72.96 0910-6545 0912-0939 - - X-Trainer 300 22-23 72.96 0910-6545 0912-0939 - - COBRA CX 50 FWE 16-18 38.95 0910-6546 0912-0940 0913-0306 - CX 50 JR 06-18 38.95 0910-6546 0912-0940 0913-0306 - CX 50 P3 16-18 38.95 0910-6546 0912-0940 0913-0306 - CX 50 SR 06-18 38.95 0910-6546 0912-0940 0913-0306 - CX 65 07-09/12-16 44.45 0910-6547 - - - CX 65 10-11 42.95 - 0912-0941 - - GASGAS MC 50 21-23 39.47 0910-2716 - - 0913-0189 MC 65 21-23 44.97 0910-2717 0912-0396 0913-0181 0913-0189 MC 85 21-23 56.95 0910-2712 - - 0913-0186 MC 125 21-23 53.95 - - - 0913-0190 EC 250 21-23 66.35 0910-2720 0912-0414 - 0913-0185 EC 300 21-23 71.94 0910-5953 0912-0407 - 0913-0185 HONDA CR85R 03-07 47.45 0910-2698 0912-0397 - 0913-0186 CR85RB 03-07 47.45 0910-2698 0912-0397 - 0913-0186 CR 25R 92-99 53.94 0910-2669 - - 0913-0190 CR125R 00-03 53.94 0910-2689 - - 0913-0190 CR250R 97-01 66.35 - 0912-0405 - 0913-0192 CR250R 02-04 66.35 - 0912-0405 - 0913-0192
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