Engine Valve Pair for Honda TRX250X and TRX300EX provides a reliable aftermarket replacement to restore engine performance and compression. This kit includes both intake and exhaust valves, offering a complete valve set in each package. OEM Replacement Quality Product. TWO PAIRS REQUIRED TO COMPLETE ONE CYLINDER.

Designed to match Honda specifications, these valves are precision-machined to ensure proper seating, sealing, and heat resistance under the demanding conditions of ATV operation. The aftermarket construction delivers durable performance at a practical price point, making it a solid choice for rebuilds or routine maintenance.

Vehicle Fitment

 

Product Specifications

 

OEM & Aftermarket Cross-Reference Information

OEM cross-reference numbers are provided for reference purposes only. Always verify fitment using your machine's exact model, year, and original part number before ordering.

Why Choose This Aftermarket Valve Pair?

• Direct-Fit Compatibility: Precision-engineered for Honda TRX250X (1987-1992), TRX300EX (1993-2008), and TRX300X (2009) models .

• OEM Cross-Reference: Exhaust valve cross-references genuine Honda part number 14721-HC0-000 for confident replacement .

• Proven Aftermarket Support: Multiple respected aftermarket brands manufacture compatible valves for these models:

  • Vesrah offers intake (GG-1026-IN) and exhaust (GG-1026-EX) valves specifically for TRX250X and TRX300EX applications .

  • Caltric provides complete valve kits (CE0078XK125LL) containing all components needed for a full top-end rebuild .

• Vesrah Quality: Vesrah valves undergo automated manufacturing from material shearing through final inspection, with strict quality control ensuring quality equal to or even better than OEM equipment. All valves are tuftrided to provide additional corrosion resistance and mechanical strength .

• Sold in Pairs: Each pair includes one intake and one exhaust valve for balanced valvetrain replacement.

• Complete Cylinder Coverage: Two pairs required to fully valve one cylinder (four valves total) for the TRX250X/TRX300EX engine configuration.

• Restores Performance: New valves improve compression, combustion efficiency, and overall engine output.

• Comprehensive Rebuild Options: Complete valve kits containing valves, springs, retainers, seals, and related components are available for full top-end restoration .

Installation Notes:

• Two valve pairs (four valves total) are required to complete one cylinder for the TRX250X/TRX300EX engine.

• Always check valve-to-guide clearance during installation.

• Inspect valve seats and recut or replace if necessary.

• Use new valve seals and springs where recommended—complete valve kits are available with all necessary components .

• Properly lap valves to ensure a gas-tight seal.

• Verify valve stem clearance falls within factory specifications.

• Follow manufacturer torque specifications for assembly.

• Service manuals are available for these models and provide detailed cylinder head and valve service procedures.

Why Upgrade?
Worn or burnt valves can cause low compression, hard starting, rough running, and loss of power—frustrations that spoil a ride. Restore your Honda TRX250X or TRX300EX engine's performance with this quality aftermarket valve pair, designed to keep you riding with confidence.

Order your engine valve pair today and get back on the trail with confidence.