The Honda 30506-ML4-003 Ignition Coil Suspension is a genuine OEM component designed for a wide range of Honda outboard motors, horizontal shaft engines, and tractors. This part is sourced directly from Honda and built to the same specification as the original, ensuring a correct fit across every application in the compatibility list. Fitment spans the BF15, BF20, BF75, BF8, BF9, BF90, BFP15, BFP20, BFP8, and BFP9 outboard motors, the GX640 horizontal shaft engine, and the H4518 and H5518 tractors — always confirm your model and serial number against the fitment table before ordering.
Key Features
- Genuine OEM Ignition Integrity — sourced directly from Honda, this suspension mount holds the ignition coil at the correct position and tension so the coil gap and timing alignment remain consistent with Honda's original design.
- Anti-Vibration Mount Function — isolates the ignition coil from engine and chassis vibration, protecting coil windings and electrical connections from the stress that causes premature failure in high-cycle applications.
- Broad Cross-Application Fitment — covers BF-series and BFP-series portable and standard outboard motors, the GX640 horizontal shaft engine, and the H4518 and H5518 tractors; always verify your serial number using the fitment table, as Honda supersedes parts at serial breaks.
- Direct Drop-In Replacement — matches the original mounting geometry exactly, so this part installs without reworking brackets or hardware on any listed application.
The ignition coil suspension is the rubber isolation mount that supports and cushions the ignition coil on its bracket. Its primary job is to absorb vibration from the engine or powerhead, preventing that energy from working directly against the coil body and its internal windings over time. When this mount deteriorates — cracking, collapsing, or losing its damping properties — the coil is exposed to continuous mechanical shock that accelerates winding fatigue and can shift the coil gap, leading to weak spark, hard starting, or intermittent misfires. Replacing a worn suspension mount restores the coil to its correct supported position and protects the ignition system from vibration-induced wear.
Part Details
| Part Number | 30506-ML4-003 |
|---|---|
| Brand | Honda |
| Part Type | Genuine OEM |
| Description | Ignition Coil Suspension |
Compatibility & Fitment
| Name | Models | Serial Range |
|---|---|---|
| Horizontal Shaft Engine | GX640 | All |
| Lawn Tractor | H4518 | All |
| Multi-Purpose Tractor | H5518 | All |
| Outboard Motor | BF75, BF90 | All |
| Portable Outboard Motor | BF8, BF9, BF15, BF20, BFP8, BFP9, BFP15, BFP20 | 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.
