The Honda 98079-56871 Spark Plug (BP6ES) is a genuine OEM component designed for GX120 horizontal shaft engines. As a direct Honda OEM part, it meets the exact heat range and electrode specification Honda engineers selected for this engine — not an approximation, but the same plug the engine was built around. This spark plug is listed for the GX120, and buyers should confirm their serial number against the fitment table to ensure this is the correct supersession for their unit.
Key Features
- OEM Heat Range Match — the BP6ES designation specifies the exact heat range Honda specifies for the GX120, ensuring the electrode runs at the correct temperature to prevent fouling and pre-ignition
- Direct OEM Replacement — sourced from Honda, this plug installs exactly as the original with no gapping guesswork beyond standard service procedure
- GX120 Fitment — listed for GX120 horizontal shaft engines; confirm your engine serial number against the fitment table before ordering, as Honda supersedes plugs across production serial breaks
- Ignition Reliability — a worn or fouled spark plug causes hard starting, misfiring, and reduced power output; replacing it with the correct OEM part restores clean combustion and consistent starting
A spark plug is the component that ignites the air-fuel mixture inside the engine's combustion chamber. Each firing cycle, the plug produces a timed electrical spark across its electrode gap, triggering combustion that drives the piston and produces power. When a spark plug wears, its gap widens, the electrode erodes, or deposits build up on the tip — any of these conditions leads to weak or inconsistent spark, resulting in rough running, difficulty starting, and increased fuel consumption. Replacing the plug on schedule with the correct OEM part keeps the GX120 starting cleanly and running at full efficiency.
Part Details
| Part Number | 98079-56871 |
|---|---|
| Brand | Honda |
| Part Type | Genuine OEM |
| Description | Spark Plug (BP6ES) |
Compatibility & Fitment
| Name | Models | Serial Range |
|---|---|---|
| Horizontal Shaft Engine | GX120 | 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.
