The Honda 98056-54777 Spark Plug (CR4HSB) is a genuine OEM ignition component designed for a wide range of Honda engines and power equipment, including GXH50 horizontal shaft engines, GXV50 and GXV57 vertical shaft engines, EU1000, EU2000, EU2200, and EB2000 and EB2200 inverter generators, the EX700 inverter generator, the BF2 portable outboard motor, the F220 tiller, and the WX15 water pump. Sourced directly from Honda, this spark plug is built to the same specification as the original, ensuring the correct heat range and electrode gap for the CR4HSB designation. Confirm your engine model and serial number against the fitment table before ordering, as Honda supersedes spark plugs at production breaks and multiple variants may be listed for a given model.
Key Features
- Correct Heat Range for the Application — the CR4HSB designation specifies an exact heat range engineered for the small-displacement Honda engines this plug covers; an incorrect heat range causes fouling or pre-ignition
- Genuine Honda OEM Part — sourced directly from Honda, this plug meets the original ignition specification for every model it is listed under, with no guesswork on gap or thread pitch
- Broad Multi-Platform Fitment — listed for Honda horizontal and vertical shaft engines, inverter generators, a portable outboard motor, a tiller, and a water pump, including GXH50, GXV50, GXV57, EU2200, EB2200, BF2, F220, and WX15 models
- Verify Serial Number Before Ordering — Honda updates spark plug specifications at serial number breaks; check your unit's serial number against the fitment table to confirm part number 98056-54777 is correct for your production range
- Consistent Ignition Performance — a worn or fouled plug causes hard starting, misfires, and poor fuel efficiency; replacing with the correct OEM plug restores clean ignition and full power output
A spark plug is the ignition source at the heart of a four-stroke petrol engine. At the end of each compression stroke, the plug fires a high-voltage spark across its electrode gap, igniting the air-fuel mixture and driving the piston down to produce power. The CR4HSB designation identifies the plug's construction, thread size, reach, and heat range — all of which must match the engine's design for reliable starting and efficient combustion. When a spark plug wears or fouls, the electrode gap widens or becomes coated with carbon deposits, weakening or eliminating the spark and causing the engine to start poorly, run roughly, or fail to reach full output.
Part Details
| Part Number | 98056-54777 |
|---|---|
| Brand | Honda |
| Part Type | Genuine OEM |
| Description | Spark Plug (CR4HSB) |
Compatibility & Fitment
| Name | Models | Serial Range |
|---|---|---|
| Horizontal Shaft Engine | GXH50 | All |
| Inverter Generator | EU1000, EX700 | 1562768-9999999 |
| Inverter Generator | EB2000, EB2200, EU2000, EU2200 | All |
| Portable Outboard Motor | BF2 | All |
| Tiller | F220 | All |
| Vertical Shaft Engine | GXV50, GXV57 | All |
| Water Pump | WX15 | 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.
