Description
Overview:
This is a genuine Honda OEM gasket (part number 12312-Z0Z-300 / 12312Z0Z300) for small 4‐stroke engines, including the Honda GX35 and GX35N. Made from a durable, oil- and heat-resistant elastomer composite, it seals the cylinder head cover (rocker/valve cover) to the cylinder head to prevent oil seepage and keep contaminants out. A correct, tight seal helps maintain clean running, reduces mess from leaks, and supports reliable engine operation over time. Designed to the original Honda specification for shape and compression, it fits without modification and is suitable for handheld and compact machines powered by the GX35 platform, such as brushcutters and multi-tools. Supplied as a single gasket for routine maintenance or replacement during servicing.
Key Features:
- Genuine Honda part for assured compatibility and performance
- Precisely moulded to match the GX35 sealing face for a reliable fit
- Oil- and heat-resistant material suited to engine environments
- Helps prevent oil leaks from the rocker/valve cover area
- Supports long service intervals by maintaining an effective seal
- Stable under vibration typical of handheld equipment
- No modifications required; installs with standard hand tools
- Consistent compression set for repeatable torque and reassembly
- Suitable for routine servicing, valve clearance checks, and rebuilds
- Backed by Honda's OEM quality control
Typical Applications:
Used during servicing or repair of Honda GX35-family engines where the cylinder head cover has been removed, such as valve clearance adjustment, gasket renewal after oil leaks, or top‐end refresh. Common on garden and light construction tools including brushcutters, split‐shaft multi‐tools, small pumps, and other compact equipment powered by the GX35 engine.
Also known as:
Valve cover gasket, rocker cover gasket, cylinder head cover gasket, cam cover seal, engine cover seal, top cover gasket, head cap gasket, GX35 cover seal.
Fits Models:
GX35, GX35N, GX35NT, GX35T, UMK 435 UE, UMK435UE
Alternate Part Numbers:
12312-Z0Z-300, 12312Z0Z300
Product Specifications
| L&S Part No. | 12312 Z0Z 300 |
|---|---|
| Part Type | Genuine Part |
| Manufacturer | Honda |
| OEM No. | 12312Z0Z300 |
| Unit of Sale | 1 |
| Applications | GX35, GX35N, GX35NT, GX35T, UMK 435 UE, UMK435UE |
| Machine Type | Engines, Brushcutters |
| Fits Brands | Honda |
| Fits Models | GX35 (GCACM) | GX35N (GCAEK) | GX35T (GCAMT) | GX35NT (GCAST) | UMK 435 UE |
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