BOLD MAGENTA part numbers are new for 2025 ENGINE PARTS-UNLIMITED.COM OFFROAD | 2025 ENGINE 1265 DISCLAIMER: *EMIS (EMISSIONS CATEGORIZATION CODE). SEE PAGES 4-6 FOR CATEGORY CODES, IMPORTANT EPA/CARB EMISSION DEFINITIONS AND REGULATORY COMPLIANCE AND NOTICE REGARDING NOISE REGULATIONS. PRODUCTS NOT LEGAL FOR SALE OR USE IN CALIFORNIA ON ANY POLLUTION CONTROLLED MOTOR VEHICLES IF NOT CATEGORIZED AS “1” OR “4”. STROKER CRANKSHAFTS FITS MODEL STROKE DISPLACEMENT PART # HONDA CRF250R 10-17 +2 mm 259cc 0921-0246 CRF450R 02-08 +3 mm 470cc 0921-0040 CRF450X 05-17 +3 mm 470cc 0921-0041 KAWASAKI KX85 01-05 +2 mm 88cc 0921-00251 KX85 06-13 +2 mm 88cc 0921-00772 KX100 95-05 +2 mm 103.5cc 0921-00251 KX100 06-13 +2 mm 103.5cc 0921-00772 KLX400 03-04 +4 mm 424cc 0921-0211 KTM 250 SX-F 05-10 +3 mm 262cc 0921-0460 FITS MODEL STROKE DISPLACEMENT PART # SUZUKI DR-Z400 00-04 +4 mm 424cc 0921-0211 DR-Z400E 00-07 +4 mm 424cc 0921-0211 DR-Z400S 05-09/11-20 +4 mm 424cc 0921-0211 DR-Z400SM 05-09/13-20 +4 mm 424cc 0921-0211 YAMAHA WR250X 08-11 +3 mm 263cc 0921-0220 WR250R 08-18 +3 mm 263cc 0921-0220 YZ250F 03-13 +3 mm 264cc 0921-0039 1 Must modify cylinder head. 2 Must machine cylinder head. OEM STROKE CRANKSHAFTS FITS MODEL PART # GASGAS MC 50 21-23 0921-0510 MC 65 17-23 0921-0389 EC 250/300 21-24 0921-0923 EX 250 22-24, EX 300 21-24 0921-0923 HONDA CR80R 86-02 H115 CR85R 03-04 H115 CR85R 05-07 0921-0076 CR125R 90-07 0921-0021 CRF150R 07-24, CRF150RB Expert 07-24 0921-01271 CR250R 92-01 H101 CRF250R 04-09 0921-01281 CRF250R 10-17 0921-0243 CRF250X 04-13, 15-17 0921-02151 CRF450R 02-08 0921-00151 CRF450R 09-12 0921-0213 CRF450R 13-16 0921-0509 CRF450R/RX 17-24, CRF450RWE 19-24 0921-0784 CR500 87-01 0921-0239 HUSQVARNA TC 50 17-23 0921-0510 TC 65 17-23 0921-0389 TC 85 14-17 0921-0508 TC 125 14-15 0921-0234 TC 250 23-24,TC 250 Heritage Edition 23 0921-0923 TE 250 14 0921-0237 TE 250 17-18/24 0921-0923 TE 250 18-23 0921-0923 TE 300 14 0921-0237 TE 300 17-24,TE 300 Heritage Edition 23 0921-0923 TE 300 Jarvis Edition 23 0921-0923 TX 300 17-24 0921-0923 TX 300 Heritage Edition 23 0921-0923 KAWASAKI KX65 00-05 H117 KX80 91-00 H119 KX85 01-05 H119 FITS MODEL PART # KAWASAKI (CONT) KX85 06-13 0921-0075 KX85 14-24, KX85 Big Wheel 14-18 0921-0517 KX100 95-05 H119 KX100 06-13 0921-0075 KX100 14-21 0921-0517 KX125 03-05 0921-0023 KX250 92-04 H128X KX250F 04-08 0921-00731 KX250F 09 0921-02421 KX250F 11-16 0921-03881 KLX400 03-04 0921-00331, 2 KX450F 10-15 0921-04571 KTM 50 SX/SX JR 06-08 0921-0518 50 SX PRO JR/SR 04-05 0921-0518 50 SX 09-23 0921-0510 65 SX 09-23 0921-0389 65 XC 09 0921-0389 85/105 SX 03-12 0921-0051 85 SX 13-17 0921-0508 125 SX 01-15 0921-0234 144 SX 07-08 0921-0235 150 XC 10-14 0921-0235 150 SX 09-15 0921-0235 200 XC 07-09 0921-0240 200 XC-W 07-16 0921-0240 250 EXC 04-05, 08-11 0921-0237 250 EXC/Six Days 17-24 0921-0923 Freeride 250 R 15-16 0921-0237 250 MXC 08-11 0921-0237 250 SX 23-24 0921-0923 250 SX-F 05-10 0921-0238 250 XC 06-15, 250 XC-W 06-16 0921-0237 250 XC 17-19, 250 XC TPI 20-23, 250 XC TBI 24 0921-0923 250 XC-W 17-24 0921-0923 300 EXC 04-05, 08-11 0921-0237 FITS MODEL PART # KTM (CONT) 300 EXC 17-24 0921-0923 300 EXC Hardenduro 24, 300 EXC Six Days 17/24 0921-0923 300 MXC 04-05, 08-11 0921-0237 300 SX 23-24 0921-0923 300 XC 06-14, 300 XC-W 06-16 0921-0237 300 XC 17-24 0921-0923 300 XC-W 17-18/24, 300 XC-W TPI 19-23 0921-0923 300 XC-W Hardenduro 24, 300 XC-W Six Days 17-18, 300 XC-W TPI Six Days 19-20 0921-0923 SUZUKI RM65 03-05 H117 RM100 03 H119 RM125 01-03 H121 RM125 04-07 0921-0016 RM250 03-08 0921-0026 RM-Z250 04-06 0921-0073 RM-Z250 07-09 0921-0136 RM-Z250 10-15 0921-0546 DR-Z400 00-04 0921-00331, 2 DR-Z400E 00-07 0921-00331, 2 DR-Z400S 05-09/11-24 0921-00331, 2 DR-Z 400SM 05-09/13-24 0921-00331, 2 RM-Z450 13-14 0921-0512 YAMAHA YZ80 93-01 H122 YZ85 02-18 H123 YZ125 97-00 H124 YZ125 01-04 H125X YZ125 05-21,YZ125X 20-22 0921-0027 YZ250 03-24,YZ250X 16-24 H134 YZ250F 03-13 0921-00131 YZ250F 14-15 0921-0516 YZ250F 16-18 0921-0783 YZ450F 03-05 0921-00171 YZ450F 10-17 0921-0244 1 Heavy-duty crankshaft assembly. 2 Not for kickstart applications. CRANKSHAFT ASSEMBLIES •Premier alternative to costly OEM crankshaft •Forged from 4140 steel and precision machined •Sold complete and ready for installation with the original proven Hot Rods connecting rods, top end bearings and crankshaft webs •Multi-cylinder applications are sold complete with main bearings (unless specified otherwise) •Gears are made at a quality level of DIN class 9 or higher •Assembly sold complete with Hot Rods connecting rod • Factory assembled and trued to OEM specifications, Hot Rods cranks will meet or surpass the OEM in performance durability •Ready for installation •Crankshafts are fully rebuildable with genuine Hot Rods connecting rods and bearings (except Stroker) • ”Stroker” crankshaft assemblies add 2 mm to 4 mm of stroke depending on application; in some cases cylinder head must be modified or special pistons used (as noted) •Main bearings not included 0921-0021 0921-0546
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