The Honda 91301-766-003 O-Ring (42.5X3) is a genuine OEM sealing component designed for GX160 horizontal shaft engines. As a direct Honda OEM part, it is manufactured to the exact dimensions and material specification Honda requires for a proper seal. Buyers should confirm their engine's serial number against the fitment table to ensure part number 91301-766-003 corresponds to their specific production run.
Key Features
- Exact OEM Dimensions — manufactured to Honda's specified 42.5 x 3 mm profile, ensuring the sealing surface seats correctly without gaps or distortion
- Genuine Honda OEM Part — sourced directly from Honda, carrying the same specification used during original engine assembly
- GX160 Fitment — listed for GX160 horizontal shaft engines; verify your serial number against the fitment table before ordering
- Leak Prevention — a correctly seated O-ring maintains fluid or pressure containment; a worn or damaged ring allows seepage that can lead to fluid loss and engine damage over time
An O-ring is a continuous loop of resilient sealing material that sits in a machined groove between two mating surfaces. When the joint is assembled, the O-ring is compressed slightly, creating a positive seal that prevents oil, fuel, coolant, or air from passing between the components. When an O-ring hardens, cracks, or takes a permanent set with age and heat cycles, it loses the ability to maintain that seal — allowing leaks that can progress from a minor weep to significant fluid loss if left unaddressed.
Part Details
| Part Number | 91301-766-003 |
|---|---|
| Brand | Honda |
| Part Type | Genuine OEM |
| Description | O-Ring (42.5X3) |
Compatibility & Fitment
| Name | Models | Serial Range |
|---|---|---|
| Horizontal Shaft Engine | GX160 | 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.
