Engine Valve Pair for Honda TRX300 (1988-2000) — aftermarket replacement valves designed to restore reliable performance for Honda's popular ATV. This set includes both intake and exhaust valves, precisely machined to meet factory tolerances for proper seating and airflow. Ideal for engine rebuilds, maintenance, or performance refresh on Honda TRX300 and TRX300FW models from 1988 through 2000.

Vehicle Fitment

Product Specifications

OEM 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 TRX300 FourTrax 2WD and TRX300FW FourTrax 4WD models (1988–2000) .

• OEM Cross-Reference: Exhaust valve cross-references genuine Honda part number 14721-HA0-003 for confident replacement .

• Proven Aftermarket Support: Vesrah, a respected aftermarket brand, manufactures compatible exhaust valves (GG-1016-EX) specifically for these models .

• 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 .

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

• Restores Performance: New valves improve compression, throttle response, and overall engine reliability.

• Proven Compatibility: The TRX300 engine platform has extensive aftermarket support, with top-end rebuild kits, pistons, and related components readily available from manufacturers like WSM and Wiseco .

Installation Notes:

• 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.

• 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.

• Top-end rebuild kits including pistons, rings, gaskets, and related components are available separately for complete engine restoration .

Why Upgrade?
Worn or burnt valves can cause low compression, hard starting, rough running, and loss of power—frustrations that cut into work time or spoil a ride. Restore your Honda TRX300 FourTrax engine's performance with this quality aftermarket valve pair, designed to keep you working and riding with confidence.

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