The Honda 14121-ZM3-010 Camshaft Cover is a genuine OEM replacement designed for GX22 and GX31 horizontal shaft engines and UMK422 and UMK431 trimmers. As an authentic Honda part, it is manufactured to the same standards as the original component that left the factory. This cover is a direct OEM replacement for the original, ensuring a proper fit for the models listed — always verify your unit's serial number against the fitment table before ordering, as Honda supersedes parts at serial breaks.
Key Features
- Genuine Honda OEM Construction — manufactured to Honda's original design specifications, ensuring the correct profile and sealing geometry for the camshaft cavity on these compact engines and trimmers.
- Direct OEM Replacement — this part installs in place of the original with no alteration, maintaining the valvetrain environment Honda engineered for consistent engine operation.
- Broad Fitment Across Two Product Lines — covers GX22 and GX31 horizontal shaft engines as well as UMK422 and UMK431 trimmers; confirm your model and serial number against the fitment table to select the correct part.
- Protects Valvetrain Integrity — a cracked, warped, or missing camshaft cover allows contaminants into the valvetrain and permits oil to escape, leading to accelerated wear and loss of lubrication where it matters most.
The camshaft cover encloses and protects the camshaft and associated valvetrain components inside the engine. It keeps dirt and debris out of the cam chamber while retaining the oil that lubricates the rotating and sliding surfaces within. When this cover is cracked, damaged, or improperly seated, oil can leak from the engine and contaminants can enter, accelerating wear on the camshaft lobes and related components. Replacing a damaged cover promptly restores the sealed environment the valvetrain depends on to function correctly.
Part Details
| Part Number | 14121-ZM3-010 |
|---|---|
| Brand | Honda |
| Part Type | Genuine OEM |
| Description | Camshaft Cover |
Compatibility & Fitment
| Name | Models | Serial Range |
|---|---|---|
| Horizontal Shaft Engine | GX22, GX31 | 1138647-9999999 |
| Trimmer | UMK422, UMK431 | 1138647-9999999 |
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.
