The Honda 17631-Z0T-801 Fuel Filler Cap Gasket (39X62X3) is a genuine OEM replacement designed for a wide range of Honda engines and power equipment, including GX120, GX160, GX200, GX240, GX270, GX340, and GX390 horizontal shaft engines, EG1400, EG2200, EG2500, EG3500, and EG5000 generators, FC600 and FRC800 tillers, HS724, HS928, HS1332, HS1336, HSM1336, HSS724, HSS928, and HSS1332 two-stage snow blowers, and WB20, WB30, WH15, WH20, WMP20, WT20, WT30, WT40, WDP20, and WDP30 water pumps. Sourced directly from Honda, this gasket meets the same specification as the part installed at the factory. Because Honda supersedes parts at production breaks, verify your unit's serial number against the fitment table before ordering to confirm this is the correct gasket for your machine.
Key Features
- OEM Fuel Seal Integrity — genuine Honda construction ensures the gasket compresses correctly against the filler neck, maintaining a fuel-tight seal under the cap
- Correct Dimensions — the 39x62x3 mm profile matches the filler cap geometry exactly, so this part drops into place without trimming or shimming
- Broad Equipment Coverage — a single part number spans GX-series horizontal shaft engines, EG-series generators, two-stage snow blowers, tillers, and multiple water pump models including diaphragm and centrifugal variants
- Serial-Range Verification Recommended — Honda issues supersessions at serial breaks; check your machine's serial number against the fitment table to confirm this gasket applies to your unit
- Prevents Fuel Evaporation and Contamination — a deteriorated or compressed-out cap gasket allows fuel vapors to escape and moisture or debris to enter the tank, affecting fuel quality and engine performance
The fuel filler cap gasket sits between the fuel tank filler neck and the underside of the filler cap, creating a seal that keeps fuel in and contaminants out. Over time, heat cycling and exposure to fuel cause the gasket to harden, compress, or crack, allowing vapors to escape or debris to enter the tank. Replacing a worn gasket restores that seal, protecting fuel quality and preventing the rough running or lean conditions that a contaminated or degraded fuel supply can cause.
Part Details
| Part Number | 17631-Z0T-801 |
|---|---|
| Brand | Honda |
| Part Type | Genuine OEM |
| Description | Fuel Filler Cap Gasket (39X62X3) |
Compatibility & Fitment
| Name | Models | Serial Range |
|---|---|---|
| Diaphragm Water Pump | WDP20, WDP30 | All |
| Generator | EG5000 | 4117422-9999999 |
| Generator | EG1400, EG2200, EG2500, EG3500 | All |
| Horizontal Shaft Engine | GX340 | 1167472-9999999 |
| Horizontal Shaft Engine | GX120, GX160, GX200, GX240, GX270, GX390 | All |
| Tiller | FC600 | 1341237-1456758 |
| Tiller | FRC800 | 2006344-9999999 |
| Two-Stage Snow Blower | HS928, HS1332, HSS928, HSS1332 | 2166645-9999999 |
| Two-Stage Snow Blower | HS724, HSS724 | 3286110-9999999 |
| Two-Stage Snow Blower | HS1336, HSM1336 | All |
| Water Pump | WT20, WT30 | 2063327-9999999 |
| Water Pump | WT40 | 2238009-9999999 |
| Water Pump | WB20, WB30, WH15, WH20, WMP20 | 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.
