The Honda 17620-Z4H-820 Fuel Filler Cap (39X62X3) is a genuine OEM replacement designed for GX120 horizontal shaft engines. Sourced directly from Honda, this cap carries the exact dimensions and sealing specification the engine was built around. Confirm your unit's serial number against the fitment table before ordering — Honda supersedes parts at serial breaks, and matching part number 17620-Z4H-820 to your specific engine ensures you receive the correct version.
Key Features
- OEM Sealing Integrity — as a genuine Honda component, this cap is dimensioned to seat flush against the fuel tank opening, maintaining a consistent seal that prevents fuel spillage and vapor loss during operation.
- Exact Dimensional Match — the (39X62X3) designation identifies a specific cap size; verify this matches your tank before ordering to ensure a proper fit.
- Direct GX120 Fitment — engineered specifically for GX120 horizontal shaft engines and the equipment they power.
- Check Your Serial Number — Honda updates part specifications at production serial breaks; cross-reference your engine's serial number with the fitment table to confirm this is the correct cap for your unit.
The fuel filler cap seals the fuel tank opening on the GX120 engine, keeping fuel contained and preventing contamination from dust, debris, and moisture during operation. A damaged or missing cap allows fuel to escape and exposes the tank to contaminants that can clog the fuel system over time. Replacing a worn or cracked cap restores a clean seal and keeps the fuel supply in the condition the engine needs to run correctly.
Part Details
| Part Number | 17620-Z4H-820 |
|---|---|
| Brand | Honda |
| Part Type | Genuine OEM |
| Description | Fuel Filler Cap (39X62X3) |
Compatibility & Fitment
| Name | Models | Serial Range |
|---|---|---|
| Horizontal Shaft Engine | GX120 | 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.
