The Honda 17631-Z0T-813 Fuel Filler Cap Gasket (39X62X3) is a genuine OEM replacement designed for a wide range of Honda engines, generators, tillers, snow blowers, and water pumps. As an authentic Honda part, this gasket is manufactured to the same specification as the original, ensuring a correct seal against the fuel filler neck every time. This component covers an extensive fitment list including GX120, GX160, GX200, GX240, GX270, GX340, and GX390 horizontal shaft engines, EB2200, EB2500, EB3000, EG1400, EG2200, EG2500, EG3500, EG5000, EM1600, EM1800, EM2200, EM2500, EM3000, EZ3500, and EZ5000 generators, F401, F501, FR600, FR650, FR750, FR800, and FRC800 tillers, HS724, HS828, HS928, and HS1132 two-stage snow blowers, and WB20, WB30, WD20, WD30, WH15, WH20, WP20, WP30, WT20, WT30, and WT40 water pumps. Because Honda supersedes parts at serial-number breaks, confirm the part number 17631-Z0T-813 against your machine's serial number in the fitment table before ordering.
Key Features
- OEM Fuel Seal Integrity — genuine Honda construction delivers the exact compression and sealing characteristics needed to keep fuel vapor contained at the filler cap interface, preventing seepage and evaporative loss.
- Correct Dimensions — the 39X62X3 size spec matches the original filler cap seat, so this gasket drops into place without trimming, shimming, or modification.
- Broad Genuine-OEM Fitment — covers Honda GX-series horizontal shaft engines including the G100, GX120, GX160, GX200, GX240, GX270, GX340, and GX390; a full range of Honda generators, tillers, two-stage snow blowers, and water pumps. Check your serial number against the fitment table to confirm the correct fit for your specific unit.
- Direct Replacement for a Worn or Compressed Gasket — a hardened or deformed original gasket allows fuel odors and minor seepage around the filler cap; replacing it with this part restores a fresh, proper seal and eliminates those symptoms.
The fuel filler cap gasket sits between the fuel tank's filler neck and the underside of the cap, forming a compression seal that keeps fuel and fuel vapor from escaping when the cap is closed. Over time, heat cycling and exposure to fuel cause the gasket material to harden, shrink, or take a permanent set, reducing the clamping pressure needed to maintain a proper seal. A degraded gasket can produce fuel odor, visible seepage around the cap, or — in equipment that sits for extended periods — accelerated fuel evaporation; replacing this small component restores the integrity of the fuel system's only serviceable cap seal.
Part Details
| Part Number | 17631-Z0T-813 |
|---|---|
| Brand | Honda |
| Part Type | Genuine OEM |
| Description | Fuel Filler Cap Gasket (39X62X3) |
Compatibility & Fitment
| Name | Models | Serial Range |
|---|---|---|
| Generator | EB2500, EM1600, EM1800, EM2200, EM2500 | 1028974-9999999 |
| Generator | EB3000, EM3000 | 1109281-9999999 |
| Generator | EG5000 | 3692992-9999999 |
| Generator | EZ3500, EZ5000 | 4496436-9999999 |
| Generator | EG3500 | 4498644-9999999 |
| Generator | EG1400, EG2200, EG2500 | 8542060-9999999 |
| Horizontal Shaft Engine | GX340 | 1000001-1161428, 3692071-9999999 |
| Horizontal Shaft Engine | GX270 | 1000001-1204806, 2118571-9999999 |
| Horizontal Shaft Engine | GX390 | 1000001-1530148, 3605678-9999999 |
| Horizontal Shaft Engine | G100 | 3468619-9999999 |
| Horizontal Shaft Engine | GX120, GX160, GX200, GX240 | All |
| Inverter Generator | EB2200 | 1028974-9999999 |
| Tiller | FRC800 | 1003600-9999999 |
| Tiller | FR650, FR750 | 1849431-9999999 |
| Tiller | F401, F501 | 4203083-9999999 |
| Tiller | FR600, FR800 | 8542060-9999999 |
| Two-Stage Snow Blower | HS724 | 1849431-9999999 |
| Two-Stage Snow Blower | HS828, HS928 | 2139477-9999999 |
| Two-Stage Snow Blower | HS1132 | 3715024-9999999 |
| Water Pump | WT40 | 3700315-9999999 |
| Water Pump | WB20, WB30, WD20, WD30, WH15, WH20, WP20, WP30 | 4203083-9999999 |
| Water Pump | WT20, WT30 | 4504018-9999999 |
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.
