The Honda 91302-MAL-601 O-Ring (18.1X3.6) is a genuine OEM sealing component designed for a wide range of Honda BF-series outboard motors — including the BF75, BF90, BF100, BF115, BF140, BF150, BF200, BF225, BF250, and BF350 — as well as the GX440 horizontal shaft engine. As a direct Honda OEM part, this O-ring is manufactured to the exact dimensions and material grade specified for these applications, ensuring a proper sealing fit without modification. Sourcing the correct O-ring by part number 91302-MAL-601 is critical, as even a small dimensional mismatch can compromise the seal entirely.
Key Features
- Genuine OEM Sealing Integrity — manufactured to Honda's exact 18.1 x 3.6 mm specification, delivering the precise cross-section and diameter this application demands for an effective fluid seal.
- Broad BF-Series Fitment — listed for Honda BF75, BF90, BF100, BF115, BF140, BF150, BF200, BF225, BF250, and BF350 outboard motors, as well as the GX440 horizontal shaft engine; confirm your model and serial number against the fitment table before ordering.
- Serial-Range Verification Recommended — Honda supersedes sealing components at production breaks, so always check your unit's serial number against the fitment table to confirm part number 91302-MAL-601 is correct for your specific build.
- Prevents Fluid Loss — a failed or degraded O-ring allows fluid to bypass the seal, leading to leaks that can cause overheating, contamination, or loss of pressure in the systems it serves.
An O-ring is a circular elastomeric seal that sits in a machined groove and is compressed between two mating surfaces to prevent the passage of fluid or gas. In outboard motors and engines alike, O-rings are used throughout the cooling, lubrication, and fuel systems wherever a leak-free joint is required between components. When an O-ring hardens, cracks, or takes a permanent set with age and heat exposure, it loses its ability to maintain a seal — resulting in leaks that can escalate quickly into more serious mechanical damage if left unaddressed.
Part Details
| Part Number | 91302-MAL-601 |
|---|---|
| Brand | Honda |
| Part Type | Genuine OEM |
| Description | O-Ring (18.1X3.6) |
Compatibility & Fitment
| Name | Models | Serial Range |
|---|---|---|
| Horizontal Shaft Engine | GX440 | All |
| Outboard Motor | BF75, BF90, BF115, BF140, BF150, BF200, BF225, BF250, BF350 | All |
| Portable Outboard Motor | BF100 | 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.
