BOLD MAGENTA part numbers are new for 2026 PARTS-UNLIMITED.COM 2026 | OFFROAD PISTON & PISTON KITS PISTON & PISTON KITS 1394 FITS MODEL BORE SIZE PISTON KIT PART # REPL.WRIST PIN PART # REPL. CIRCLIPS PART # REPL. RINGS PART # KAWASAKI (CONT) KX450F 14:1 Pro Race Piston 19-23 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 Pro Race Piston 16-22 78 mm std bore 0910-6499 - 0913-0071 0912-0239 450 SX-F 13.5:1 Pro Race Piston 16-24 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 YZ/WR250F 13.5:1 05-13 77 mm std bore - - 0913-0071 0912-0241 YZ250F 14.5:1 14-18 77 mm std bore 0910-64942, 3 - 0913-0071 0912-0241 YZ250F 14.0:1 19-25 77 mm std bore 0910-6516 - 0913-0071 0912-0241 YZ250F 14.3:1 Race Piston kit 19-25 77 mm std bore 0910-65172, 3 - 0913-0071 0912-0241 YZ/WR450F 13.5:1 03-09 95 mm std bore - - - 0912-0244 YZ450F 13:1 Race Piston 10-19 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 - - - 1 DLC wrist pins. 2 Piston comes with standard skirt coating. 3 Use race fuel only. HIGH-PERFORMANCE 4-STROKE PISTON KITS BY CP PISTONS (CONT) 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 - 0912-0405 - - RR 2T 300 22-23 72.96 0910-6545 - - - Xtrainer 300 22-23 72.96 0910-6545 - - - COBRA CX 65 10-11 42.95 - 0912-0941 - - 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
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