The Honda 91302-KF0-003 O-Ring (54X2.4) is a genuine OEM seal designed for BF35, BF40, BF45, and BF50 outboard motors. As a direct Honda OEM component, this O-Ring is manufactured to the exact dimensions and material specification Honda engineers require for a leak-free seal. Confirm your outboard's serial number against the fitment table before ordering, as Honda supersedes sealing components at specific serial breaks — part number 91302-KF0-003 must match your unit's production range.
Key Features
- Genuine OEM Sealing Integrity — manufactured to Honda's exact 54 x 2.4 mm profile, delivering the correct compression and contact area needed to maintain a fluid-tight seal in your outboard's assembly
- Direct OEM Replacement — this O-Ring installs in place of the original with no trimming or reshaping; the 54 x 2.4 mm dimensions are critical to proper seating and retention
- Outboard Fitment — listed for BF35, BF40, BF45, and BF50 Honda outboard motors; verify your serial number against the compatibility table to confirm this is the correct variant for your engine
- Leak Prevention — a deteriorated or incorrectly sized O-Ring allows fluid to bypass the seal, leading to oil or water ingress that can damage internal components and compromise outboard performance
An O-Ring is a precision-dimensioned loop seal that sits in a machined groove, compressing against mating surfaces to prevent the passage of fluids or gases between joined components. In Honda BF-series outboard motors, O-Rings appear throughout the powerhead, gearcase, and cooling system, where maintaining a leak-free boundary is essential to engine lubrication, cooling efficiency, and long-term reliability. When an O-Ring hardens, cracks, or is deformed through improper installation, it loses its sealing ability — allowing oil, water, or fuel to leak past the joint and potentially causing significant internal damage if left unaddressed.
Part Details
| Part Number | 91302-KF0-003 |
|---|---|
| Brand | Honda |
| Part Type | Genuine OEM |
| Description | O-Ring (54X2.4) |
Compatibility & Fitment
| Name | Models | Serial Range |
|---|---|---|
| Outboard Motor | BF35, BF40, BF45, 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.
