The Honda 98056-54750 Spark Plug (U14FS-UB) is a genuine OEM spark plug designed for the GXH50 horizontal shaft engine. Sourced directly from Honda, this plug is specified by part number 98056-54750 to match the heat range, thread pitch, and electrode geometry Honda engineers calibrated for the GXH50. Because Honda periodically supersedes parts at serial number breaks, confirm your engine's serial number against the fitment table before ordering.
Key Features
- Correct Heat Range for the GXH50 — the U14FS-UB designation specifies the exact thermal rating Honda requires for this compact engine, ensuring the electrode runs at the temperature needed for complete combustion and a clean burn.
- Genuine OEM Part — supplied by Honda to the same specification as the plug installed at the factory, so there is no guesswork on gap, reach, or thread size.
- Direct-Fit for GXH50 Engines — part number 98056-54750 is listed specifically for the GXH50 horizontal shaft engine; cross-check your serial number to confirm applicability to your serial range.
- Ignition Reliability — a worn or fouled spark plug causes hard starting, misfires, and poor fuel economy; replacing it with the correct OEM plug restores crisp ignition and smooth power delivery.
A spark plug is the ignition source for the engine's combustion cycle — it fires an electrical spark across its electrode gap at precisely the right moment to ignite the compressed air-fuel mixture in the cylinder. When the plug is worn, fouled with carbon deposits, or operating outside its correct heat range, the engine can misfire, run rough, or refuse to start altogether. Replacing the plug with the Honda-specified U14FS-UB type keeps the GXH50 starting reliably and running at full efficiency.
Part Details
| Part Number | 98056-54750 |
|---|---|
| Brand | Honda |
| Part Type | Genuine OEM |
| Description | Spark Plug (U14FS-UB) |
Compatibility & Fitment
| Name | Models | Serial Range |
|---|---|---|
| Horizontal Shaft Engine | GXH50 | 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.
