The Honda 19504-ZA0-800 Water Hose A is a genuine OEM part designed for the EX5500 generator. As a factory-sourced component, this hose is built to Honda's original specifications, ensuring the correct internal diameter, length, and connection geometry for a proper, leak-free fit. If your EX5500 is showing signs of coolant loss, overheating, or a deteriorating hose, this is the correct replacement to restore the cooling circuit to its original operating condition.
Key Features
- Genuine Honda OEM — sourced directly from Honda, this Water Hose A matches the original component in every dimension, eliminating the guesswork that comes with ill-fitting alternatives.
- Cooling Circuit Integrity — a sound, correctly routed hose keeps coolant flowing where it needs to go; a cracked, collapsed, or loose hose invites overheating and extended downtime for a generator that's built to run hard.
- Exact Fitment for the EX5500 — verified for the EX5500 generator; confirm your unit's serial number against the fitment table before ordering, as Honda periodically supersedes parts at serial breaks.
The Water Hose A is part of the EX5500 generator's liquid cooling circuit, routing coolant between key components to manage operating temperature. By maintaining consistent coolant flow, this hose helps the engine shed heat efficiently and sustain stable output under load. When the hose cracks, collapses, or loses a secure connection at either end, coolant loss follows — leading to rising engine temperatures, potential shutdown, and accelerated wear on internal components.
Part Details
| Part Number | 19504-ZA0-800 |
|---|---|
| Brand | Honda |
| Part Type | Genuine OEM |
| Description | Water Hose A |
Compatibility & Fitment
| Name | Models | Serial Range |
|---|---|---|
| Generator | EX5500 | 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.
