Description
Overview:
This valve stem seal is a Genuine Honda part engineered to control oil at the valve guide in small petrol engines, helping to stop oil from entering the combustion chamber. Made from heat- and oil-resistant elastomer with a firm retaining collar, it delivers a consistent seal through thermal cycles and vibration. It is designed for Honda GX series engines such as the GX120 and GX160, and is equally suitable for the GX200 family used across compact construction and garden machinery. By keeping oil out of the combustion area, the seal supports clean running, reduced smoke, and stable spark plug condition, which in turn helps maintain performance and fuel efficiency. A reliable choice for routine servicing or a top-end refresh on hard-working equipment.
Key Features:
- Genuine Honda Part for assured fit and material quality
- OEM reference 12209-ZH8-003 (also 12209ZH8003) for easy identification
- Designed for GX120, GX160, and GX200 engines for straightforward replacement
- Helps prevent oil consumption, exhaust smoke, and plug fouling
- Oil- and heat-resistant elastomer provides long service life
- Stable sealing under high temperatures and continuous running
- Typically fitted to the inlet valve on many GX engines during valve service
- Aids clean combustion and consistent engine performance over time
- Suitable for preventative maintenance, rebuilds, and repairs without modifications
Typical Applications:
Used during cylinder head or valve service on Honda GX-powered equipment, including generators, water pumps, pressure washers, plate compactors, concrete mixers, tillers, and garden machinery. Ideal when restoring engines that show oil smoke on start-up or after idling, or whenever the valve train is inspected. Suitable for both professional workshops and DIY maintenance.
Also known as:
Valve stem oil seal, valve guide seal, stem seal, intake valve seal, top-end oil seal, engine valve seal, GX valve seal. Often referenced during head gasket jobs or valve clearances as part of standard top-end refresh parts.
Fits Models:
EU26i, GX120, GX120K1, GX120T1, GX120U1, GX120UT1, GX160, GX160H1, GX160K1, GX160T1, GX160U1, GX160UT1, GX200, GX200H, GX200T, GX200U, GX200UT, WB20XT
Alternate Part Numbers:
12209-ZH8-003, 12209ZH8003
Product Specifications
| L&S Part No. | 12209 ZH8 003 |
|---|---|
| Part Type | Genuine Part |
| Manufacturer | Honda |
| OEM No. | 12209ZH8003 |
| Unit of Sale | 1 |
| Applications | EU26i, GX120, GX120K1, GX120T1, GX120U1, GX120UT1, GX160, GX160H1, GX160K1, GX160T1, GX160U1, GX160UT1, GX200, GX200H, GX200T, GX200U, GX200UT, WB20XT |
| Machine Type | Engines |
| Fits Brands | Honda |
| Fits Models | WB20XT | GX120K1 (GC01) | GX120T1 (GCAAT) | GX120UT1 (GCAGT) | GX200 (GCAE) | GX120U1 (GCAHK) | GX200 (GDAB) | GX200T (GCACT) | GX160K1 (GC02) | GX160H1 (GCAAH) | GX160K1 (GCAAK) | GX160T1 (GCABT) | GX160U1 (GCACK) | GX160UT1 (GCAFT) | GX200UT (GCAHT) | GX160K1 (GDAA) | GX200U (GCAJK) | GX200H (GCARH) | EU26i |
