Description
Overview:
This Seal Valve Stem is a genuine Honda replacement part for small 4‐stroke engines, supplied under MPN 12209-Z3E-003. Made from an oil- and heat-resistant elastomer bonded to a metal reinforcement, it controls the oil flow around the valve stem and guide, preventing oil from entering the combustion chamber. This helps reduce smoke, protect the catalytic elements in exhausts where fitted, and maintain clean, reliable running. Designed for Honda handheld and compact machinery engines, it offers a precise fit for models such as the GX25T and GX35T commonly found in brushcutters and similar tools. As a Genuine Part, it matches the original specification for sealing performance, durability, and service life in demanding outdoor and construction use.
Key Features:
- Genuine Honda part for correct fit and reliable sealing
- Oil- and heat-resistant materials for long service life
- Helps reduce oil consumption and blue smoke at start-up and under load
- Protects piston, valve train, and exhaust components from oil fouling
- Precision moulded lip for consistent seal on the valve stem
- Supports stable idle and cleaner combustion
- Durable construction suited to frequent, high-hour operation
- Straightforward to install during top-end service with standard workshop tools
Typical Applications:
Used during cylinder head or top-end maintenance, valve replacement, or when diagnosing oil burning and exhaust smoke. Suitable for restoring correct lubrication control on Honda mini 4‐stroke engines fitted to brushcutters, strimmers, hedge trimmers, and compact machinery, ensuring dependable starting, smooth running, and reduced oil carry-over.
Also known as:
Valve guide seal, valve oil seal, stem oil seal, valve stem oil seal, valve guide oil seal, top-end oil seal.
Fits Models:
GX25NT, GX25T, GX35NT, GX35T, UMK 425 LE, UMK 435 UE, UMK425LE, UMK435UE
Alternate Part Numbers:
12209-Z3E-003, 12209Z3E003
Product Specifications
| L&S Part No. | 12209 Z3E 003 |
|---|---|
| Part Type | Genuine Part |
| Manufacturer | Honda |
| OEM No. | 12209Z3E003 |
| Unit of Sale | 1 |
| Applications | GX25NT, GX25T, GX35NT, GX35T, UMK 425 LE, UMK 435 UE, UMK425LE, UMK435UE |
| Fits Brands | Honda |
| Fits Models | GX25T (GCALT) | GX35T (GCAMT) | GX25T (GCANT) | GX25T (GCAPT) | GX25NT (GCART) | GX35NT (GCAST) | UMK 435 UE | UMK 425 LE |
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