The Honda 98079-5785C Spark Plug (K22PR-UR) is a genuine OEM ignition component designed for the GX440 horizontal shaft engine. Honda sources this plug to the K22PR-UR specification, ensuring the correct heat range and electrode configuration for this engine's combustion chamber. Because Honda supersedes ignition parts at serial number breaks, confirm your engine's serial number against the fitment table before ordering to ensure part number 98079-5785C is the correct application for your unit.
Key Features
- OEM Heat Range Match — the K22PR-UR designation specifies the exact thermal rating Honda engineers selected for the GX440, keeping combustion temperatures within the designed operating window
- Direct OEM Replacement — sourced directly through Honda's parts network, this plug drops in without modification, restoring the ignition system to its original specification
- GX440 Application — listed for GX440 horizontal shaft engines; verify your serial number against the compatibility table to confirm this is the correct plug for your engine's production range
- Ignition Reliability — a worn or fouled spark plug causes hard starting, misfires, and loss of power; replacing it with the correct OEM plug restores clean ignition and consistent engine output
A spark plug ignites the compressed air-fuel mixture inside the engine's cylinder, and every aspect of its design — electrode gap, heat range, and thread reach — is calibrated for the specific combustion chamber it serves. In the GX440 horizontal shaft engine, the K22PR-UR plug dissipates heat at the rate Honda's engineers determined is needed to prevent pre-ignition while still burning off carbon deposits. When a spark plug wears out or becomes fouled, the engine may be difficult to start, run rough, or lose power under load; installing the correct OEM replacement brings ignition performance back to specification.
Part Details
| Part Number | 98079-5785C |
|---|---|
| Brand | Honda |
| Part Type | Genuine OEM |
| Description | Spark Plug (K22PR-UR) |
Compatibility & Fitment
| Name | Models | Serial Range |
|---|---|---|
| Horizontal Shaft Engine | GX440 | 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.
