Description
Overview:
This exhaust valve is a replacement component for Honda small engines in the GC and GCV series, such as GC160 and GCV160. Made from heat‐resistant steel, it controls exhaust gas flow out of the combustion chamber, helping to maintain correct sealing, smooth running and reliable starting. A worn or pitted exhaust valve can cause loss of power, hard starting and increased fuel use; fitting a fresh valve restores proper exhaust timing and performance. It is suitable for many Honda-powered lawn mowers and light construction equipment that use GC/GCV engines. Supplied to match Honda specification for part number 14721-ZL8-000, it is designed to fit and function like the original component, supporting long service life when used with a sound seat and guide.
Key Features:
- Heat‐resistant steel construction for durability under high exhaust temperatures
- Direct-fit replacement for Honda 14721-ZL8-000 for straightforward fitting
- Restores correct exhaust flow and sealing to support smooth running and power
- Helps reduce misfires and starting issues linked to valve wear
- Compatible with a wide range of Honda GC, GCV, GS and GSV engines used in garden and site machinery
- Manufactured to OEM specification for stem and head geometry
- Suitable for routine top-end refresh or valve service with seat lapping
- Works with standard Honda springs, collets and retainers (not included)
Typical Applications:
Commonly used in Honda-powered pedestrian lawn mowers, pressure washers, water pumps, generators and light construction tools. Ideal when overhauling engines that have high hours, poor compression, burnt valves or exhaust leakage, or after cylinder head servicing and decarbonising.
Also known as:
Exhaust poppet valve, outlet valve, engine exhaust valve for Honda GC/GCV series, Honda valve (exhaust side), cylinder head exhaust valve.
Fits Models:
GC135, GC135E, GC160, GC160A, GC160E, GC190, GC190A, GCV135, GCV135E, GCV160, GCV160A, GCV160A0, GCV160E, GCV160LA0, GCV190A, GS160A, GS190A, GSV160A, GSV190A, HRB425 CQX, HRB476C QXE, HRD536C HXE, HRD536C SXE, HRD536C2 HXE, HRD536C2 HXEE, HRD536C2 TXE, HRD536C2 TXEE, HRD536C3 HXEE, HRD536C3 TXEE, HRG415 PDE, HRG415 SD, HRG415C1 SDEE, HRG415C1-PDEE, HRG415C2 PDEE, HRG415C2 SDE, HRG415C2 SDEE, HRG415C2 SDEE/A, HRG415C2-PDE, HRG415C2-PDEE/A, HRG415C3 PDEE, HRG415C3 SDEE, HRG465C1 PDE, HRG465C1 PDEE, HRG465C1 SDE, HRG465C1 SDEE, HRG465C2 PDEE, HRG465C2 PDEE/A, HRG465C2 SDEE, HRG465C2 SDEE/A, HRG465C3 PDEE, HRG465C3 SDEE, HRG536 PDE, HRG536 SD, HRG536C SDF, HRG536C SDT, HRG536C1 PDE, HRG536C1 PDE/A, HRG536C1 PDEA, HRG536C1 PDEA/A, HRG536C1 SDE, HRG536C1 SDE/A, HRG536C1 SDEA, HRG536C1 SDEA/A, HRG536C1 SDF, HRG536C1 SDF/A, HRG536C1 SDFA, HRG536C1 SDFA/A, HRG536C1 SDT, HRG536C1 SDT/A, HRG536C1 SDTA, HRG536C1 SDTA/A, HRX426 QX, HRX426 RXE, HRX426 SX, HRX426C PDE, HRX426C PXE, HRX426C SDE, HRX476 HX, HRX476 SX, HRX476C PXE, HRX476C QXE, HRX476C1 HYEE, HRX476C1 PKEE, HRX476C1 VKEE, HRX476C1 VYEE, HRX537 C2-HYE, HRX537 HXE, HRX537C HME, HRX537C TDE, HRX537C1 HMEA, HRX537C1 HXEA, HRX537C1 TDEA, HRX537C1 VYEA, HRX537C2 HZEA, HRX537C2 VKEA, HRX537C2 VYEA
Alternate Part Numbers:
14721-Z8B-000, 14721 Z8B 000, 14721-ZL8-000, 14721Z8B000
Product Specifications
| L&S Part No. | 14721 ZL8 000 |
|---|---|
| Manufacturer | Honda |
| OEM No. | 14721ZL8000 |
| Unit of Sale | 1 |
| Applications | GC135, GC135E, GC160, GC160A, GC160E, GC190, GC190A, GCV135, GCV135E, GCV160, GCV160A, GCV160A0, GCV160E, GCV160LA0, GCV190A, GS160A, GS190A, GSV160A, GSV190A, HRB425 CQX, HRB476C QXE, HRD536C HXE, HRD536C SXE, HRD536C2 HXE, HRD536C2 HXEE, HRD536C2 TXE, HRD536C2 TXEE, HRD536C3 HXEE, HRD536C3 TXEE, HRG415 PDE, HRG415 SD, HRG415C1 SDEE, HRG415C1-PDEE, HRG415C2 PDEE, HRG415C2 SDE, HRG415C2 SDEE, HRG415C2 SDEE/A, HRG415C2-PDE, HRG415C2-PDEE/A, HRG415C3 PDEE, HRG415C3 SDEE, HRG465C1 PDE, HRG465C1 PDEE, HRG465C1 SDE, HRG465C1 SDEE, HRG465C2 PDEE, HRG465C2 PDEE/A, HRG465C2 SDEE, HRG465C2 SDEE/A, HRG465C3 PDEE, HRG465C3 SDEE, HRG536 PDE, HRG536 SD, HRG536C SDF, HRG536C SDT, HRG536C1 PDE, HRG536C1 PDE/A, HRG536C1 PDEA, HRG536C1 PDEA/A, HRG536C1 SDE, HRG536C1 SDE/A, HRG536C1 SDEA, HRG536C1 SDEA/A, HRG536C1 SDF, HRG536C1 SDF/A, HRG536C1 SDFA, HRG536C1 SDFA/A, HRG536C1 SDT, HRG536C1 SDT/A, HRG536C1 SDTA, HRG536C1 SDTA/A, HRX426 QX, HRX426 RXE, HRX426 SX, HRX426C PDE, HRX426C PXE, HRX426C SDE, HRX476 HX, HRX476 SX, HRX476C PXE, HRX476C QXE, HRX476C1 HYEE, HRX476C1 PKEE, HRX476C1 VKEE, HRX476C1 VYEE, HRX537 C2-HYE, HRX537 HXE, HRX537C HME, HRX537C TDE, HRX537C1 HMEA, HRX537C1 HXEA, HRX537C1 TDEA, HRX537C1 VYEA, HRX537C2 HZEA, HRX537C2 VKEA, HRX537C2 VYEA |
| Machine Type | Engines, Mowers |
| Fits Brands | Honda |
| Fits Models | GS190A (GCACA) | GC135E (GCAAE) | GC160E (GCABE) | GC160 (GCAH) | GC160A (GCAHA) | GC190A (GCAAA) | GS160A (GCABA) | GSV160A (GJABA) | GSV190A (GJACA) | GCV135 (GJAF) | GCV135E (GJAFE) | GCV160E (GJAAE) | GCV160 (GJAE) | GCV160A (GJAEA) | GCV160A0 (GJAPA) | GCV160LA0 (GJARA) | GCV190A (GJAAA) | HRB425 CQX | HRB476C QXE | HRG415 SD (Izy) | HRG415 PDE (Izy) | HRG536 PDE (Izy) | HRG536 SD (Izy) | HRX426 QX | HRX426 RXE | HRX426 SX | HRX476 HX | HRX476 SX | HRX537 C2-HYE | HRX537 HXE | HRG415C1 (IZY) - PDEE | HRG415C1 SDEE (Izy) | HRG415C2 (IZY) - PDE | HRG415C2 PDEE (Izy) | HRG415C2 (IZY) - PDEE/A | HRG415C2 SDE (Izy) | HRG415C2 SDEE (Izy) | HRG415C2 SDEE/A (Izy) | HRG415C3 PDEE (Izy) | HRG415C3 SDEE (Izy) | HRG465C1 PDE (Izy) | HRG465C1 PDEE (Izy) | HRG465C1 SDE (Izy) | HRG465C1 SDEE (Izy) | HRG465C2 PDEE (Izy) | HRG465C2 PDEE/A (Izy) | HRG465C2 SDEE (Izy) | HRG465C2 SDEE/A (Izy) | HRG465C3 PDEE (Izy) | HRG465C3 SDEE (Izy) | HRX426C PDE | HRX426C PXE | HRX426C SDE | HRX476C PXE | HRX476C QXE | HRX476C1 HYEE | HRX476C1 PKEE | HRX476C1 VKEE | HRX476C1 VYEE | HRD536C HXE | HRD536C SXE | HRD536C2 HXE | HRD536C2 HXEE | HRD536C2 TXE | HRD536C2 TXEE | HRD536C3 HXEE | HRD536C3 TXEE | HRX537C HME | HRX537C TDE | HRG536C SDF | HRG536C SDT | HRG536C1 PDE (Izy) | HRG536C1 PDE/A (Izy) | HRG536C1 PDEA (Izy) | HRX537C1 HMEA | HRX537C1 HXEA | HRX537C1 TDEA | HRX537C1 VYEA | HRX537C2 HZEA | HRX537C2 VKEA | HRX537C2 VYEA | HRG536C1 PDEA/A (Izy) | HRG536C1 SDE (Izy) | HRG536C1 SDE/A (Izy) | HRG536C1 SDEA (Izy) | HRG536C1 SDEA/A (Izy) | HRG536C1 SDF (Izy) | HRG536C1 SDF/A (Izy) | HRG536C1 SDFA (Izy) | HRG536C1 SDFA/A (Izy) | HRG536C1 SDT (Izy) | HRG536C1 SDT/A (Izy) | HRG536C1 SDTA (Izy) | HRG536C1 SDTA/A (Izy) |
