BOLD MAGENTA part numbers are new for 2024 PARTS-UNLIMITED.COM 2024 | OFFROAD PISTON & PISTON KITS 1312 CYLINDER KITS •Kits include aluminum cylinder with nickel-carbide coating designed with larger water jackets •Forged piston black graphite or clear tin coating; includes rings, clips and pin •Athena top-end gasket set includes required seals and hardware •Easy-to-follow step-by-step installation instructions •Most are bolt-on; no machining required except where noted STOCK BORE RACE CYLINDER KITS •Include aluminum cylinder with nickel-carbide coating, ported to Factory Works specs •Two-stroke kits include an aluminum cylinder head with a removable bronze dome allowing for a higher compression ratio and anti-detonation features (except where noted) • Two-stroke kits feature specially designed, high-performance, hard-anodized power valves (cannot use OEM) • Specially designed, high-performance, Cast-Lite flat-top piston kit •Athena top-end gasket set including required seals and hardware • Easy-to-follow, step-by-step installation instructions BIG BORE RACE CYLINDER KITS •Include aluminum cylinder with nickel-carbide coating • Specially designed, high-performance, hard-anodized power valves (cannot use OEM) • Specially designed, high-performance, forged OEM-style domed piston kit •Athena top-end gasket set including required seals and hardware • Easy-to-follow, step-by-step installation instructions NOTE: All 4-stroke kits do not include cylinder head. 2-stroke cylinder kit 4-stroke cylinder kit FITS MODEL DESCRIPTION PART # SUG. RETAIL HONDA CRF150R 07-10 Cylinder kit (69mm big bore) 163.5cc 0931-0307 $585.95 Repl. ring set 0912-0331 55.95 Gasket kit 0934-1968 55.95 CRF230F 07-15 Cylinder kit (67mm big bore) 233cc 0931-0662 348.95 Repl. cast piston +0.25 0910-4191 99.95 Repl. cast piston +0.50 0910-4192 99.95 Gasket kit 0934-4814 32.95 CRF250R/X 04-09 Forged piston kit A (81.95mm piston) 0910-0646 233.95 Gasket kit 0934-1054 87.95 CRF250R 18-22 Cylinder kit (82.00mm big bore; 13.7:1 compression) 289cc 0931-0956 978.95 Cylinder kit (standard bore) 0931-0955 647.95 CRF450R 02-08 Forged piston kit A (99.95mm, 11.6:1 compression, for 100mm big bore/490cc) 0910-0255 240.95 CRF450R 09-16 Gasket kit (100mm big bore) 0934-2546 103.95 CRF450R 17-22 Cylinder kit (standard bore) 0931-0957 647.95 FITS MODEL DESCRIPTION PART # SUG. RETAIL HUSQVARNA FC 250 14-15 Repl. forged piston A 0910-3414 $277.95 Repl. ring set 0912-0471 55.95 Gasket kit (82mm) 0934-3157 56.95 FC 250 16-22 Repl. forged piston 0910-3414 277.95 Repl. ring set 0912-0471 55.95 Gasket kit (82mm) 0934-5491 61.95 FE 250 17-19 Cylinder kit (82mm big bore) 276cc 0931-0865 974.95 Repl. forged piston 0910-3414 277.95 Repl. ring set 0912-0471 55.95 Gasket kit 0934-5491 61.95 FC350 14-15 Repl. forged piston 0910-2764 273.95 FE350 14-16 Repl. forged piston 0910-2764 273.95 KAWASAKI KX65 02-21 Cylinder kit (50mm big bore) 80cc 0931-0107 781.95 Gasket kit (50mm big bore) 0934-1533 40.95
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