The Honda 15721-Z45-A40 Breather Tube is a genuine OEM Breather Tube designed for the EU3200 inverter generator. As a direct Honda OEM part, it is manufactured to the same specification as the original component installed at the factory. Confirm your unit's serial number against the fitment table before ordering to ensure this is the correct part for your EU3200.
Key Features
- Genuine Honda OEM — sourced directly from Honda, this tube matches the exact routing, diameter, and connection points of the original part for a proper, leak-free installation.
- Crankcase Ventilation Integrity — a correctly functioning breather tube allows crankcase gases to vent properly; a cracked or blocked tube can cause oil leaks, pressure buildup, and poor engine performance in your EU3200.
- EU3200 Fitment — engineered specifically for the Honda EU3200 inverter generator; verify your serial number against the fitment table to confirm compatibility with your production range.
The breather tube is part of the engine's crankcase ventilation system. Its job is to route blow-by gases — combustion gases that pass the piston rings and enter the crankcase — back into the air intake so they are burned off rather than vented to the atmosphere. When the tube cracks, hardens, or becomes blocked, crankcase pressure builds up, oil can be pushed past seals, and the engine may run roughly or consume oil at an elevated rate. Replacing a failed tube restores proper ventilation and keeps the EU3200's engine running cleanly.
Part Details
| Part Number | 15721-Z45-A40 |
|---|---|
| Brand | Honda |
| Part Type | Genuine OEM |
| Description | Breather Tube |
Compatibility & Fitment
| Name | Models | Serial Range |
|---|---|---|
| Inverter Generator | EU3200 | 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.
