14721-HA0-003 Exhaust Valve for Honda TRX 300 Fourtrax 1988-2000
14721-HA0-003 Exhaust Valve for Honda TRX 300 Fourtrax 1988-2000
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Exhaust Valve for Honda
This exhaust valve is a replacement engine component for Honda TRX 300 Fourtrax models, manufactured to OEM cross-reference 14721-HA0-003, and it controls exhaust gas flow out of the combustion chamber.
Overview
This exhaust valve is a direct-fit replacement for the Honda TRX 300 Fourtrax engine, built to match OEM cross-reference 14721-HA0-003. The exhaust valve seals and releases combustion gases at the correct moment, helping the engine breathe and run as intended. It suits riders and mechanics rebuilding or servicing a TRX 300 top end.
Built For Performance
- Manufactured to OEM cross-reference 14721-HA0-003 for a precise fit
- Heat-resistant valve head designed for continuous exhaust gas exposure
- Machined stem for smooth travel through the valve guide
- Correct seat angle for reliable sealing against the valve seat
- Balanced construction to support consistent valve timing
Fits These Machines
- for Honda TRX 300 Fourtrax 1988
- for Honda TRX 300 Fourtrax 1989
- for Honda TRX 300 Fourtrax 1990
- for Honda TRX 300 Fourtrax 1991
- for Honda TRX 300 Fourtrax 1992
- for Honda TRX 300 Fourtrax 1993
- for Honda TRX 300 Fourtrax 1994
- for Honda TRX 300 Fourtrax 1995
- for Honda TRX 300 Fourtrax 1996
- for Honda TRX 300 Fourtrax 1997
- for Honda TRX 300 Fourtrax 1998
- for Honda TRX 300 Fourtrax 1999
- for Honda TRX 300 Fourtrax 2000
On-The-Job Use
- Top-end rebuilds on Honda TRX 300 Fourtrax engines
- Valve replacement during cylinder head service
- Restoring compression on a worn or burnt exhaust valve
- Routine maintenance on high-hour utility ATV engines
Specs At A Glance
| Part Number(s) | 14721-HA0-003 |
| Position | Exhaust |
| Type | Engine Valve |
| Compatibility | for Honda TRX 300 Fourtrax 1988-2000 |
Good To Know
Q: Does this valve fit every Honda TRX 300 Fourtrax? A: It is listed for the 1988 to 2000 TRX 300 Fourtrax, but trim and serial number differences can affect fitment. Confirm your model and year before ordering.
Q: Should exhaust valves be replaced in pairs? A: Valve work is often done as a set with related components during a top-end rebuild. A mechanic can confirm what your engine needs.
Slight variation in finish or dimensions may occur between production runs, and fit can depend on serial number, so confirm compatibility before ordering.
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