The Honda 14721-Z4M-810 Exhaust Valve (Stellite) is a genuine OEM replacement designed for GX160 horizontal shaft engines. This is the Stellite-faced variant — confirm this matches your engine's original specification before ordering, as Honda lists multiple exhaust valve versions for the GX160 series. As a direct Honda OEM component, part number 14721-Z4M-810 is manufactured to the exact dimensions Honda specifies for proper seating, sealing, and longevity in these engines.
Key Features
- Stellite-Faced Valve Seat Interface — the Stellite facing on this exhaust valve delivers hardened wear resistance at the valve face, where combustion heat and repeated seating cycles cause the most wear on standard valves
- Genuine Honda OEM Part — sourced directly from Honda, this component meets the exact dimensional and metallurgical specifications Honda requires for correct valve-to-seat contact in GX160 engines
- Variant Verification Required — Honda offers more than one exhaust valve for the GX160; check your engine's serial number against the fitment table to confirm part number 14721-Z4M-810 is the correct valve for your unit
- Restores Full Compression and Combustion Sealing — a worn or burnt exhaust valve causes compression loss, hard starting, and reduced power output; replacing it with this OEM part restores the tight seal the combustion chamber depends on
The exhaust valve controls the release of spent combustion gases from the cylinder at the end of each power stroke. It opens briefly to allow exhaust gases to escape, then closes tightly against its seat to seal the combustion chamber during compression and ignition. Because the exhaust valve operates under intense heat and repeated mechanical stress, the valve face and stem are the first components to show wear — a valve that no longer seals cleanly causes compression drop, rough running, difficult starting, and over time can lead to more serious engine damage. Replacing a worn exhaust valve with a correctly specified OEM part restores compression integrity and returns the engine to full operating performance.
Part Details
| Part Number | 14721-Z4M-810 |
|---|---|
| Brand | Honda |
| Part Type | Genuine OEM |
| Description | Exhaust Valve (Stellite) |
Compatibility & Fitment
| Name | Models | Serial Range |
|---|---|---|
| Horizontal Shaft Engine | GX160 | All |
Verify Before You Order
Fitment is machine-number and revision-specific; always confirm your model and serial number against the fitment list.
Why Buy From DHS Equipment
Every part is verified against the manufacturer's part number before it ships, so what you order is what arrives. We carry parts from leading OEM brands and our own DHS Quality Parts line of professional aftermarket components. Need help finding the right part? Our team is available to confirm compatibility whenever you need it. Orders are processed fast to keep your jobs on track. We don't just sell parts. We keep you jobsite ready.
Questions? Contact our team at [email protected] or 866-611-9369 — DHS Equipment is here to help you maintain peak performance.
