The Honda 91301-Z2E-300 Fuel Cap Gasket is a genuine OEM replacement designed for GX440 horizontal shaft engines. As a direct-fit OEM component, this gasket is manufactured to Honda's original specifications, ensuring a proper seal between the fuel cap and the tank filler neck. Verify your engine's serial number against the fitment table to confirm part number 91301-Z2E-300 is correct for your specific unit before ordering.
Key Features
- OEM Sealing Integrity — manufactured to Honda's original specification, this gasket delivers the sealing pressure and compression set resistance that an aftermarket substitute may not match.
- Direct OEM Replacement — engineered as an exact fit for the GX440 horizontal shaft engine, this component installs without modification.
- Serial Number Verification Recommended — Honda supersedes parts at serial breaks, so always confirm your engine's serial number against the fitment table to ensure this is the correct gasket for your unit.
- Fuel System Integrity — a sound fuel cap gasket prevents fuel vapors from escaping and stops moisture and debris from entering the tank, keeping the fuel supply clean and the engine running as intended.
The fuel cap gasket sits between the fuel tank filler neck and the fuel cap, forming a compression seal that closes the tank when the cap is tightened. This seal keeps fuel vapor contained, prevents contaminants such as dirt and water from entering the tank, and stops fuel from weeping around the cap under normal operating conditions. When this gasket hardens, cracks, or loses its compression set, the seal breaks down — resulting in fuel odor, potential seepage, or contamination that can affect engine operation over time.
Part Details
| Part Number | 91301-Z2E-300 |
|---|---|
| Brand | Honda |
| Part Type | Genuine OEM |
| Description | Fuel Cap Gasket |
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.
