The Honda 91301-MG8-003 is a genuine OEM O-Ring (51.6X2.3) designed for GXV670 vertical shaft engines. As a direct Honda OEM component, this o-ring is produced to the exact dimensional specification required for a proper seal — the 51.6X2.3 size designation identifies the precise variant, so confirm this matches your application before ordering. Honda supersedes parts at serial breaks, so check your engine's serial number against the fitment table to ensure part number 91301-MG8-003 is correct for your unit.
Key Features
- Exact OEM Sizing — sourced directly from Honda at the 51.6X2.3 dimension, ensuring the cross-section and inner diameter match the sealing groove this o-ring occupies
- Genuine Honda OEM Part — manufactured to Honda's own specification, not an approximation, so sealing integrity is maintained as originally engineered
- GXV670 Fitment — listed for the GXV670 vertical shaft engine; verify your serial number against the fitment table to confirm applicability for your serial range
- Size Verification Required — the (51.6X2.3) qualifier identifies this specific variant; if your application calls for a different diameter or cross-section, a different part number applies
An o-ring is a circular elastomeric seal that sits in a machined groove and prevents fluid or gas from passing between two mating surfaces. In the GXV670 vertical shaft engine, o-rings are used throughout the lubrication and cooling passages to maintain pressure and prevent leaks at component interfaces. When an o-ring hardens, cracks, or is compressed beyond its service life, the seal breaks down and allows oil or coolant to escape — leading to fluid loss, contamination, and potential engine damage if left unaddressed.
Part Details
| Part Number | 91301-MG8-003 |
|---|---|
| Brand | Honda |
| Part Type | Genuine OEM |
| Description | O-Ring (51.6X2.3) |
Compatibility & Fitment
| Name | Models | Serial Range |
|---|---|---|
| Vertical Shaft Engine | GXV670 | 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.
