The Honda 15721-Z6L-000 Breather Tube is a genuine OEM component designed for GX630, GX660, and GX690 horizontal shaft engines and the EB10000 generator. As a direct OEM replacement, this part is manufactured to Honda's exact specifications, ensuring a correct fit without modification. Confirm fitment by checking your unit's serial number against the compatibility table before ordering, as Honda supersedes parts at specific serial breaks.
Key Features
- Genuine Honda OEM — sourced directly from Honda, this tube matches the original routing, diameter, and connection points of the part it replaces, ensuring proper crankcase ventilation without leaks or misrouting.
- Broad Fitment — covers GX630, GX660, and GX690 horizontal shaft engines as well as the EB10000 generator; check your serial number against the fitment table to confirm the correct variant for your unit.
- Restored Crankcase Breathing — a cracked, kinked, or deteriorated breather tube disrupts crankcase pressure balance, leading to oil consumption and contamination issues; replacing it restores proper function.
The breather tube routes crankcase gases away from the engine's internal cavities, connecting the crankcase ventilation system to the air intake path. This controlled venting prevents pressure buildup inside the engine, which, if left unchecked, can force oil past seals and into areas where it does not belong. When the tube cracks, collapses, or loses its seal at either connection point, the crankcase pressure imbalance that follows can cause oil burning, increased emissions, and accelerated internal wear — making this a small part with a significant effect on overall engine health.
Part Details
| Part Number | 15721-Z6L-000 |
|---|---|
| Brand | Honda |
| Part Type | Genuine OEM |
| Description | Breather Tube |
Compatibility & Fitment
| Name | Models | Serial Range |
|---|---|---|
| Generator | EB10000 | All |
| Horizontal Shaft Engine | GX630, GX660, GX690 | 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.
