Honda 30520-RRA-S01 Plug Hole Coil

The Honda 30520-RRA-S01 Plug Hole Coil is a genuine OEM ignition component designed for BF115, BF135, BF140, and BF150 outboard motors. As a direct Honda OEM part, it meets the exact specifications Honda engineered into these outboards, ensuring the ignition system operates as intended. This coil is a direct replacement for the original unit and covers all four of these outboard models — confirm the part number 30520-RRA-S01 against your serial number in the fitment table before ordering, as Honda does supersede parts at production breaks.

Key Features

• Genuine OEM Ignition Output — sourced directly from Honda, this coil delivers the precise spark energy and timing these outboard motors require, keeping combustion consistent across the RPM range.
• Direct Replacement Fit — engineered to the original plug-hole coil specification, this part installs into the same location as the factory unit with no reworking of the ignition system.
• Broad Outboard Coverage — fits BF115, BF135, BF140, and BF150 Honda outboard motors; verify your serial number against the fitment table to confirm the correct application.
• Protects On-Water Performance — a failing plug hole coil causes misfires, rough running, or a no-start condition; replacing it with the correct OEM part restores clean, dependable ignition before a bad coil leaves you stranded on the water.

A plug hole coil — also called a coil-on-plug or pencil coil — mounts directly over each spark plug, eliminating the high-voltage leads used in older ignition systems. It steps up low-voltage current from the ignition control module into the high-voltage spark needed to fire the fuel-air mixture in the cylinder. Because it sits directly in the plug hole, it is exposed to engine heat and vibration every time the outboard runs; over time, the internal windings or insulation can break down, causing weak spark, cylinder misfires, or a complete failure to start. Replacing a worn coil with a correct OEM unit restores full spark output and returns the engine to smooth, even power delivery across all operating conditions.

Part Details

Compatibility & Fitment

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.