The Honda 15631-Z2E-800 Oil Filler Extension is a genuine OEM component designed for GX440 horizontal shaft engines. Sourced directly from Honda, this part carries the same fit and specification as the original, ensuring it installs correctly without adaptation. If your GX440 engine has gone through a Honda parts supersession, confirm part number 15631-Z2E-800 against your engine's serial number using the fitment table before ordering.
Key Features
- Genuine Honda OEM — manufactured to Honda's original specification, so this Oil Filler Extension integrates with the engine's lubrication access point exactly as the factory-installed part did.
- Correct Fitment for GX440 Engines — designed specifically for GX440 horizontal shaft engines; verify your engine's serial number against the fitment table to confirm this is the right part for your build.
- Direct Drop-In Replacement — matches the original mounting interface, so this part installs without reworking surrounding components or filler cap hardware.
The Oil Filler Extension is the tube or neck that bridges the engine's crankcase to an accessible oil fill point, allowing oil to be added to the engine in installations where the standard filler opening is obstructed or awkward to reach. It directs oil cleanly into the crankcase and is typically fitted with a cap or dipstick to seal the opening during operation. A cracked, broken, or missing extension exposes the crankcase to contamination and makes checking and topping up the oil level difficult, which over time can lead to insufficient lubrication and accelerated engine wear.
Part Details
| Part Number | 15631-Z2E-800 |
|---|---|
| Brand | Honda |
| Part Type | Genuine OEM |
| Description | Oil Filler Extension |
Compatibility & Fitment
| Name | Models | Serial Range |
|---|---|---|
| Horizontal Shaft Engine | GX440 | 1000001-1001792 |
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.
