BOLD MAGENTA part numbers are new for 2026 ENGINE & COOLING PARTS-UNLIMITED.COM ATV/UTV | 2026 ENGINE & COOLING 1103 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 INTAKE VALVE INTAKE VALVE HEAD DIAMETER EXHAUST VALVE EXHAUST VALVE HEAD DIAMETER EXHAUST GUIDE HONDA TRX450R 04-05 - Std. - - 0926-06081 0926-0469 +1 mm - - - 0926-0469 +1 mm 0926-0491 +1 mm - 1 5.5 mm. XCELDYNE VALVES BY CV4 •Titanium valves • Features an advanced “high-flow” design to increase flow by more than 15% over stock valves •Lightweight design increases rpm and horsepower • PVD-coated for outstanding wear-resistance in seat, tip and guide area •Sold each FITS MODEL SINGLE INTAKE VALVE SINGLE EXHAUST VALVE HONDA TRX450R 06-15 0926-2561 - FITS MODEL SINGLE INTAKE VALVE SINGLE EXHAUST VALVE YAMAHA YFZ450 03-15 - 0926-2557 X2 TITANIUM VALVES •Offers the offroad enthusiast superior performance at an excellent value •Incorporates a high-flow design for maximum power and long service life • Features the finest materials, tightest tolerances and best finishes • X2 Titanium Valves are full CrN-coated for extended service life FITS MODEL INTAKE SPRING SEATS EXHAUST SPRING SEATS EXHAUST VALVE LOCKS HONDA TRX450R 02-05 0926-0546 0926-0546 - TRX450R 06-15 0926-0546 0926-0546 - SUZUKI LT-R450 06-11 - - 0926-0529 VALVE SPRINGS/SEATS/LOCKS SPRINGS •Purpose-built racing valve springs made from the highest quality Kobe spring wire • Single spring, low drag design increases horsepower •Designed for use with most cam grinds •Sold in pairs •Can only be used on titanium valves SPRING SEATS •Precision CNC machined from 8620 case hardened steel •High tolerances ensure seats are flat for the longest possible life •Pad is parallel to bottom surface for consistent spring pressures •Made with various thicknesses •Specially designed for use with CV4’s valve springs only •Sold as a 4-piece VALVE LOCKS •CNC machined from 8620 steel • Industry first color-coded, purpose-built intake-sized and exhaust-sized design •Design allows keepers to stay locked at higher rpm •Sold in pairs 0926-0529 0926-0546 0926-2557 0926-0469 0926-0491 0926-0608
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