The Honda 14721-ZL8-000 Exhaust Valve (L8E) is a genuine OEM replacement designed for a wide range of Honda engines and power equipment, including GC135, GC160, GC190, GCV135, GCV160, GCV190, GS160, GS190, and GSV190 engines, as well as HRB216, HRB217, HRC216, HRR216, HRS216, HRT216, HRX217, and HRZ216 lawn mowers, HS520 and HS720 single-stage snow blowers, WN20 and WN30 water pumps, FG400 and FG500 tillers, EB2800 and EG2800 inverter generators, and EN2000 and EN2500 generators. As a genuine Honda OEM component, this exhaust valve is produced to the same specifications as the part originally installed at the factory. Always confirm your machine's serial number against the fitment table before ordering, as Honda updates part numbers at production breaks across this broad range of equipment.
Key Features
- Genuine OEM Exhaust Valve — manufactured by Honda to exact valve geometry, stem diameter, and face angle specifications, ensuring proper sealing and gas-flow characteristics critical to this part type
- Direct Drop-In Replacement — the (L8E) variant designation identifies this specific valve for the applications listed; match this code to your engine's parts diagram before installation
- Broad Equipment Coverage — fits GC, GCV, GS, and GSV engines, multiple Honda lawn mower models including HRR216, HRC216, and HRX217, HS520 and HS720 single-stage snow blowers, WN20 and WN30 water pumps, FG400 and FG500 tillers, and EN2000, EN2500, EB2800, and EG2800 generators and inverter generators
- Serial Number Verification Recommended — Honda supersedes valve specifications at production serial breaks across this wide model range; always check your unit's serial number against the fitment table to confirm this is the correct valve for your machine
- Combustion Integrity — a worn or burnt exhaust valve allows combustion gases to escape past the valve seat, causing a loss of compression, hard starting, rough running, and reduced output; replacing it with the correct OEM part restores a proper seal and full engine performance
The exhaust valve is a critical component in the four-stroke combustion cycle. Positioned in the cylinder head, it opens to allow burned exhaust gases to exit the combustion chamber after each power stroke, then closes and seals tightly against its seat so the next charge of air and fuel can be compressed and ignited. Over time, heat, carbon deposits, and normal wear can cause the valve face or seat to erode, leading to compression loss, misfires, and difficulty starting. Replacing a worn exhaust valve with the correct OEM part restores the tight seal the combustion chamber depends on and brings engine performance back to spec.
Part Details
| Part Number | 14721-ZL8-000 |
|---|---|
| Brand | Honda |
| Part Type | Genuine OEM |
| Description | Exhaust Valve (L8E) |
Compatibility & Fitment
| Name | Models | Serial Range |
|---|---|---|
| Generator | EN2000, EN2500 | All |
| Horizontal Shaft Engine | GC135, GC160, GC190, GS160, GS190 | All |
| Inverter Generator | EB2800, EG2800 | All |
| Lawn Mower | HRT216 | 6330749-9999999 |
| Lawn Mower | HRB216, HRB217, HRC216, HRR216, HRS216, HRX217, HRZ216 | All |
| Single-Stage Snow Blower | HS520, HS720 | All |
| Tiller | FG400, FG500 | All |
| Vertical Shaft Engine | GCV135, GCV160, GCV190, GSV190 | All |
| Water Pump | WN20, WN30 | 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.
