BOLD MAGENTA part numbers are new for 2025 ENGINE & COOLING PARTS-UNLIMITED.COM ATV/UTV | 2025 ENGINE & COOLING 1115 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 PART # HONDA TRX450R 04-05 Max valve lift 0.440”, installed height 1.215”, seat pressure 40 lbs., open seat pressure 147 lbs. 0926-3169 TRX450R/ER 06-14 Max valve lift 0.440”, installed height 1.215”, seat pressure 40 lbs., open seat pressure 147 lbs. 0926-3170 YAMAHA YZF450 04-09 Max valve lift 0.380”, installed height 1.100” - 1.110”, seat pressure 39 lbs., open seat pressure 76 lbs. @ 0.300” lift or 86 lb. @ 0.380” lift 0926-2739 YZF450R/X 09-20 Max valve lift 0.380”, installed height 1.100” - 1.110”, seat pressure 39 lbs., open seat pressure 76 lbs. @ 0.300” lift or 86 lbs. @ 0.380” lift 0926-2739 STAINLESS STEEL CONVERSION INTAKE VALVE AND SPRING KITS •Stainless steel conversion kits includes only what’s needed to convert your head to the long-life stainless steel Black Diamond™ intake valves •Extends the life of the valvetrain and intake components by as much as four times over the OEM titanium parts • Includes forged one-piece stainless steel intake valves, wound chrome-silicon heat-treated wire valve springs, ultra-light titanium retainers and hardened steel bases •Components are created using Finite Element Analysis (F.E.A.) software, as well as proprietary camshaft analysis and spring design software •Model-specific designed and engineered •Made in the U.S.A. DESCRIPTION PART # W/ steel valve spring retainers 0926-3206 LIGHTWEIGHT RACING VALVE SPRING KITS FOR YAMAHA YXZ1000R 16-21 •Spring kit is designed with increased spring rates and high lift compatibility compared to the stock springs •Compatible with boosted or turbocharged applications • CNC machined steel or titanium retainers, steel base washers and Cr-Si dual springs provide valvetrain control at high rpms with high-performance camshaft capability •Made in the U.S.A. NOTE: It may be necessary to use KPMI shortened valve guides (PART # 0926-3032) to achieve higher than stock lift. FITS MODEL KIT CONTENTS DESCRIPTION PART # All 900cc / 1000cc RZR models 13-21 8 CrSi valve springs, 8 H.T. steel valve spring retainers, 8 H.T. steel base washers, 8 Viton® valve seals Intake/exhaust: 1.375” installed height, 65 lbs. seat pressure, 200 lbs. open pressure, 0.450” max valve lift 0926-3298 8 CrSi valve springs, 8 H.T. steel valve spring retainers, 8 H.T. steel base washers, 8 Viton® valve seals Intake/exhaust: 1.375” installed height, 64 lbs. seat pressure, 181 lbs. open pressure, 0.450” max valve lift 0926-3296 LIGHTWEIGHT RACING VALVE SPRING KITS FOR POLARIS •Designed to outperform and outlast the factory valve springs • Kit features lightweight, high-strength CrSi valve springs, H.T. steel base washers and H.T. steel or titanium spring retainers •Complete kit; everything you need to for a complete valve spring swap •Made in the U.S.A. FITS MODEL PART # CAN-AM Maverick 19-20, Maverick X3 17-18 (900cc triple engines) 0926-3317 FITS MODEL PART # HONDA For all Pioneer and Talon models 0926-3407 FITS MODEL PART # POLARIS RZR XP 1000 14 0926-3229 BEEHIVE VALVE SPRING KITS • Steel beehive valve spring kit with H.T. steel valve spring retainers •Beehive spring design reduces reciprocating mass while providing the spring forces necessary for high-performance, boosted race applications •Polaris kit valve springs have a maximum lift of 0.435” •Can-Am kit valve springs have a maximum lift of 0.350” •Can-Am springs and retainers are compatible with the OEM valve tappet lash adjustment system •Polaris kits are designed for compatibility with the OEM integrated valve seal/base (Polaris OEM #3610212) •Sold as kits •Made in the U.S.A. 0926-3317 0926-3296 0926-2739
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