The Honda 91306-Z2E-000 O-Ring (20.8X2.4) is a genuine OEM sealing component designed for the GX440 horizontal shaft engine. As a direct Honda OEM part, this O-ring is manufactured to the exact dimensions — 20.8 mm inner diameter by 2.4 mm cross-section — required for a proper seal in the GX440. Verify your engine's serial number against the fitment table to confirm this is the correct variant for your unit before ordering.
Key Features
- Genuine OEM Sealing Integrity — manufactured to Honda's exact dimensional specification, ensuring the 20.8 x 2.4 mm profile seats correctly and maintains a leak-free seal where aftermarket tolerances may fall short
- Exact-Fit Replacement — sourced directly from Honda, this O-ring installs without modification and matches the original part's profile precisely, eliminating guesswork during reassembly
- GX440 Application — listed for GX440 horizontal shaft engines; confirm your serial number against the fitment table to ensure this is the correct sealing ring for your engine's production range
An O-ring is a circular elastomeric seal used to prevent fluid or gas from passing between mating surfaces — typically around a plug, fitting, cover, or bore. In a horizontal shaft engine like the GX440, O-rings appear at several points in the lubrication, fuel, and cooling circuits, where they compress between two surfaces to form a pressure-resistant barrier. When an O-ring hardens, cracks, or deforms over time, the seal is lost and the engine may develop an oil or fuel leak, making timely replacement important for keeping the engine running cleanly and at the correct operating pressures.
Part Details
| Part Number | 91306-Z2E-000 |
|---|---|
| Brand | Honda |
| Part Type | Genuine OEM |
| Description | O-Ring (20.8X2.4) |
Compatibility & Fitment
| Name | Models | Serial Range |
|---|---|---|
| Horizontal Shaft Engine | GX440 | 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.
