The Honda 91305-KT7-003 O-Ring (37X2.4) is a genuine OEM sealing ring designed for Honda BF115, BF130, BF175, BF200, BF225, and BF250 outboard motors. As a direct Honda OEM component, this O-ring is manufactured to the exact dimensions and material specifications required for a proper, leak-free seal. Verify your outboard's serial number against the fitment table to confirm part number 91305-KT7-003 is correct for your specific unit before ordering.
Key Features
- Exact-Dimension Sealing — manufactured to Honda's precise 37 x 2.4 mm cross-section, ensuring the ring seats and compresses correctly in its groove for a reliable fluid seal
- Genuine Honda OEM — sourced directly from Honda, so this O-ring matches the specification of the original installed at the factory, with no need for trimming or adaptation
- Broad Outboard Coverage — listed for Honda BF115, BF130, BF175, BF200, BF225, and BF250 outboard motors; confirm your serial number against the fitment table, as Honda supersedes parts at serial breaks
- Leak Prevention — a correctly seated O-ring keeps fluids contained and prevents ingress of water or contaminants; a damaged or out-of-spec ring can result in leaks that affect outboard performance and reliability
An O-ring is a circular elastomeric seal seated in a machined groove between two mating surfaces or around a shaft, port, or fitting. Its function is to block the passage of fluids — whether oil, coolant, or water — by deforming under compression to fill any gap between the joined components. In a marine outboard environment, O-rings appear throughout the powerhead, gearcase, and cooling system, where exposure to water, salt, and heat causes gradual hardening and cracking over time. A worn or damaged O-ring loses its ability to hold a seal, allowing leaks that can lead to fluid loss, water ingress, or contamination of lubricated surfaces — making timely replacement an important part of outboard maintenance.
Part Details
| Part Number | 91305-KT7-003 |
|---|---|
| Brand | Honda |
| Part Type | Genuine OEM |
| Description | O-Ring (37X2.4) |
Compatibility & Fitment
| Name | Models | Serial Range |
|---|---|---|
| Outboard Motor | BF115, BF130, BF175, BF200, BF225, BF250 | 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.
