The Honda 98069-5777P Spark Plug (DR7EB) is a genuine OEM spark plug designed for BF40 and BF50 outboard motors. As a direct Honda OEM component, this spark plug is manufactured to the exact specification Honda engineers require for consistent ignition performance in these four-stroke outboards. Confirm your motor's serial number against the fitment table before ordering, as Honda supersedes parts at serial breaks and this listing covers specific production ranges of the BF40 and BF50.
Key Features
- OEM Ignition Specification — the DR7EB designation identifies the exact heat range and electrode configuration Honda specifies for the BF40 and BF50, ensuring the plug fires correctly under the combustion conditions of these outboard engines
- Direct OEM Replacement — sourced directly from Honda, part number 98069-5777P drops into the cylinder head without modification, restoring the ignition system to as-built condition
- Marine Outboard Fitment — listed for the BF40 and BF50 four-stroke outboard motors; verify your serial number against the compatibility table to confirm this is the correct plug for your unit
- Ignition Reliability — a worn or fouled spark plug causes hard starting, rough idle, misfires, and reduced fuel efficiency; replacing it on schedule keeps the outboard running cleanly and at full power
A spark plug is the component that ignites the air-fuel mixture inside each cylinder on every power stroke. In a marine four-stroke outboard such as the BF40 and BF50, the plug must fire reliably under sustained load, varying throttle conditions, and the damp environment of on-water use. When a spark plug degrades — through electrode wear, carbon fouling, or heat-range mismatch — combustion becomes inconsistent, leading to rough running, increased fuel consumption, and difficult cold starts. Replacing it with the correct Honda OEM part restores clean, complete combustion and keeps the outboard performing as intended.
Part Details
| Part Number | 98069-5777P |
|---|---|
| Brand | Honda |
| Part Type | Genuine OEM |
| Description | Spark Plug (DR7EB) |
Compatibility & Fitment
| Name | Models | Serial Range |
|---|---|---|
| Outboard Motor | BF40, BF50 | 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.
