BOLD MAGENTA part numbers are new for 2026 ENGINE PARTS-UNLIMITED.COM OFFROAD | 2026 ENGINE 1275 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”. FITS MODEL DESCRIPTION INTAKE LIFT INTAKE DURATION (@ 1 MM) EXHAUST LIFT EXHAUST DURATION (@ 1 MM) PART # HONDA (CONT) XR400 96-04 (stage 1) (stage 2) (stage 3) Excellent mid-range and top-end power; does not use auto-decompression. Uses stock valve springs and rockers. 9 mm 247 9 mm 246 TRX400S1-A Specifically designed to produce more mid-range and top-end power in big bore and stroker applications; not stock displacement. Does not use auto-decompression. 9 mm 254 8.9 mm 248.5 0925-0068 Recommended for big bore stroker applications only, for more mid-range and top-end. Does not use auto-decompression. 9.1 mm 262 9 mm 257 0925-0083 CRF450R 02-06, CRF450X 05-07 (stage 1) (stage 2) (stage 3) Excellent bottom-end and mid-range increase. 9.6 mm 238 8.8 mm 270 CRF450S1-A Excellent mid-range and top-end increase. 10.1 mm 248 8.8 mm 270 0925-0024 Specifically designed to produce more mid-range and top-end power in big bore and stroker applications; not stock displacement. 10.4 mm 254 9.1 mm 265 0925-0084 CRF450R 08, CRF450X 08-09, 12-17 (stage 2) Good mid-range and top-end. Uses stock auto-decompression. 10.1 mm 248 8.8 mm 270 0925-0267 CRF450R 09 (stage 1) (stage 3) Single-cam motor, improved torque below 9,000 rpm with improved horsepower over OEM cam. Uses stock valve springs, rockers and auto-decompression mechanism. 9.6 mm 238 8.7 mm 248 0925-0459 Single-cam motor, best suited for engines requiring more breathing capability. Uses stock valve springs, rockers and auto-decompression. 10.4 mm 252 9 mm 265 0925-0461 CRF450R 10-16 (stage 1) (stage 2) Single-cam motor, improved torque below 8,000 rpm with no loss in peak horsepower over OEM cam. Uses stock valve springs, rockers, and auto-decompression mechanism. 9.58 mm 235.58 8.57 mm 270 0925-0843 Single-cam motor, same low-end power as OEM cam up to 6,000 rpm and improved power from 6,000 to rev limit. Uses stock valve springs, rockers, and auto-decompression. 10.38 mm 254 9.04 mm 265 0925-0844 CRF450R/RX 17-20, CRF450 RWE 19-20 (stage 1) (stage 2) Single-cam motor, good bottom-end and midrange increase’s up to 9,400 rpm with slight loss 9,400 rpm to redline. Camshaft designed with improved throttle response technology. Uses stock valve springs and cam followers. Uses stock decompression mechanism. 10.41 mm 246 9.91 mm 257 0925-1593 Single-cam motor, slight bottom-end and midrange increase’s up to 7,400 rpm with great gains 7,400 rpm to redline. Camshaft designed with improved throttle response technology. Uses stock valve springs and cam followers. Single-cam engine. Uses stock decompression mechanism 10.95 mm 253.85 9.91 mm 257 0925-1594 XR600R 88-00 Excellent mid-range and top-end power increase. Does not use auto-decompression. Uses stock valve springs and rockers. 8.8 mm 258 8.8 mm 258 XR600S1-A NX 650 Dominator 88-89 Excellent mid-range and top-end power increase. Does not use auto-decompression. Uses stock valve springs and rockers. 8.8 mm 258 8.8 mm 258 XR600S1-A XR650L 93-20 Excellent mid-range and top-end power increase. Does not use auto-decompression. Uses stock valve springs and rockers. 8.8 mm 258 8.8 mm 258 XR600S1-A XR650R 00-07 (stage 1) (stage 2) Similar to HRC profile with more mid-range and top-end power than stock. Does not use auto-decompression. Uses stock valve springs and rockers. 9.26 mm 254 9.2 mm 251 XR650S1-A More aggressive than the HRC profile with more top-end than Stage 1. Does not use auto-decompression. Uses stock valve springs and rockers. 9.57 mm 265 9.5m m 260 XR650S2-A HUSQVARNA FC 250 16-22 (stage 1) (stage 1 & 2) (stage 2) ITR dual-cam engine. Intake and exhaust cams sold separately. Cam gains all the way to 11,000 rpm with slight loss 11,000 rpm to rev. limit. Uses stock valve springs. 10.86 mm 242 - - 0925-1188 ITR dual-cam engine. See intake performance description for gains. Intake and exhaust cams sold separately. Uses stock valve springs. - - 10.51 mm 238.3 0925-1189 ITR dual-cam engine. Intake and exhaust cams sold separately. Cam is equal to stock up to 8,200 rpm, then gains up to rev limiter. Uses stock valve springs. 11.63 mm 253 - - 0925-1190 KAWASAKI KX250F 04-10 (stage 1) Intake. Excellent mid-range and top-end increase. 9.14 mm 253 - - 0925-0050 Exhaust. Excellent mid-range and top-end increase; uses stock auto-decompression mechanism. - - 7.98 mm 244 0925-0051 (stage 2) Intake. Excellent top-end power, great over-rev. Use stock valve springs. 9.14 mm 258 - - 0925-0148 Exhaust. Excellent top-end power, great over-rev. Uses stock auto-decompression mechanism and valve springs. - - 8.25 mm 248 0925-0149 KX250F 11-16 (stage 1) Intake.This cam is intended to be used as a set with the PART #0925-0662 exhaust cam.This set will provide greatly increased low- to mid-rpm torque up to 9,400 rpm and higher peak torque. 9.14 mm 237 - - 0925-0661 Exhaust.This cam is intended to be used as a set with the PART #0925-0661 intake cam.This set will provide greatly increased low- to mid-rpm torque up to 9,400 rpm and higher peak torque. - - 8.38 mm 239 0925-0662 (stage 2) Intake.This cam is intended to be used as a set with the PART #0925-0664 exhaust cam.This set will provide improved torque at all rpm, much improved peak torque and increased peak horsepower. 9.65 mm 245 - - 0925-0663 Exhaust.This cam is intended to be used as a set with the PART #0925-0663 intake cam.This set will provide improved torque at all rpm, much improved peak torque and increased peak horsepower. - - 9.65 mm 245 0925-0664 KX250F 17-18 Stage 1 ITR intake. Dual-cam engine. Excellent mid-range and top-end increase over 8,000 rpm. Uses stock valve springs. 9.9 mm 242 - - 0925-1242 Stage 2 ITR intake. Dual-cam engine. Excellent mid-range and top-end increase over 8,000 rpm. Uses stock valve springs. 10.41 mm 254 - - 0925-1244 ITR exhaust. Dual-cam engine. For use with both Stage 1 and Stage 2 intake cams. Uses stock valve springs. - - 9.65 mm 256 0925-1243 HOT CAMS continued on next page. HOT CAMS (CONT)
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