The Honda 15631-Z6M-000 Oil Filler Extension is a genuine OEM component designed for GXV630, GXV660, and GXV690 vertical shaft engines. As a direct Honda OEM part, it is manufactured to the exact specifications of the original, ensuring a correct fit without modification. This part is compatible across the GXV630, GXV660, and GXV690 engine series — confirm your engine's serial number against the fitment table to make sure part number 15631-Z6M-000 is the right match for your specific unit. When the original extension is cracked, missing, or damaged, replacing it promptly keeps oil service straightforward and protects the engine from contamination during filling.
Key Features
- Genuine Honda OEM — sourced directly from Honda, this replacement matches the original Oil Filler Extension in form and fit, with no guesswork on sizing or thread engagement.
- Correct Fill Access — restores proper access to the oil filler port, making oil service clean and straightforward on vertical shaft engines where the filler can be difficult to reach.
- Broad GXV-Series Coverage — fits GXV630, GXV660, and GXV690 vertical shaft engines; check your serial number against the compatibility table to confirm the correct application.
- Prevents Contamination Risk — a damaged or absent extension can direct oil away from the filler neck during service, introducing dirt or causing underfill; this replacement restores the correct fill path.
The Oil Filler Extension is a tubular fitting that connects to the engine's oil filler neck, routing the fill point to a location that is accessible during routine oil service. On vertical shaft engines like the GXV630, GXV660, and GXV690, the engine orientation can place the standard filler port in a confined or awkward position within the equipment it powers; the extension brings that access point to a serviceable location. When the extension cracks, breaks, or goes missing, adding oil cleanly becomes difficult and the risk of spilling oil onto hot engine components or introducing contaminants into the crankcase increases.
Part Details
| Part Number | 15631-Z6M-000 |
|---|---|
| Brand | Honda |
| Part Type | Genuine OEM |
| Description | Oil Filler Extension |
Compatibility & Fitment
| Name | Models | Serial Range |
|---|---|---|
| Vertical Shaft Engine | GXV630, GXV660, GXV690 | 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.
