The Honda 14751-Z0H-000 Valve Spring is a genuine OEM component designed for GX25 horizontal shaft engines, the FG110 tiller, WX10 water pump, HHT25, UMC425, and UMC435 trimmers. As a direct Honda OEM part, it is manufactured to the same specification as the original, ensuring proper valve operation across every compatible machine. Confirm your unit's serial number against the fitment table before ordering, as Honda periodically supersedes parts at production breaks.
Key Features
- OEM Valve Tension — manufactured by Honda to deliver the correct spring rate for precise valve seating and consistent engine breathing across every compatible application
- Drop-In Replacement — matches the original spring dimensions exactly, allowing straightforward installation without alteration
- Broad Fitment — a single genuine OEM spring covering GX25 horizontal shaft engines, the FG110 tiller, WX10 water pump, and HHT25, UMC425, and UMC435 trimmers
- Serial Number Verification Recommended — Honda updates parts at specific production points, so cross-checking your machine's serial number against the fitment table keeps you from ordering an incompatible spring
- Valve Train Integrity — a weak or broken valve spring causes incomplete valve closure, leading to compression loss, rough running, and reduced power output
The valve spring holds the intake or exhaust valve firmly against its seat whenever the camshaft lobe is not actively opening it. By maintaining consistent closing force, it ensures a gas-tight seal during compression and combustion, which is essential for the engine to develop full power. When a valve spring weakens or breaks, the valve can float or fail to close completely, resulting in lost compression, misfires, and in severe cases, internal engine damage from a valve contacting the piston.
Part Details
| Part Number | 14751-Z0H-000 |
|---|---|
| Brand | Honda |
| Part Type | Genuine OEM |
| Description | Valve Spring |
Compatibility & Fitment
| Name | Models | Serial Range |
|---|---|---|
| Horizontal Shaft Engine | GX25 | All |
| Tiller | FG110 | All |
| Trimmer | HHT25, UMC425, UMC435 | All |
| Water Pump | WX10 | All |
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.
