The Honda 16541-ZA0-930 Governor Arm Shaft is a genuine OEM component designed for ES6500 and EX5500 generators and the GX360 horizontal shaft engine. As a direct OEM replacement, this shaft is manufactured to Honda's original specifications, ensuring it mates correctly with the governor arm and linkage assembly on each covered unit. Verify your machine's serial number against the fitment table before ordering, as Honda periodically supersedes parts at serial number breaks. This Governor Arm Shaft is the right call when restoring accurate speed regulation to your generator or engine.
Key Features
- Genuine OEM Speed-Control Integrity — sourced directly from Honda, this shaft maintains the dimensional accuracy that the governor arm linkage depends on for consistent throttle response across load changes
- Direct OEM Replacement — matches the original shaft geometry and fit, allowing straightforward installation without reworking the governor linkage
- Broad Fitment — covers ES6500 and EX5500 generators and GX360 horizontal shaft engines; confirm your serial number against the fitment table to ensure this is the correct shaft for your specific unit
- Stable Engine Speed Under Load — a worn or damaged governor arm shaft introduces slop into the governor linkage, causing hunting, surging, or an inability to hold a set RPM; replacing it restores steady operation
The governor arm shaft is the pivot point at the heart of Honda's mechanical governor system. It supports the governor arm, which translates flyweight movement — driven by engine speed — into throttle adjustments that keep the engine running at a consistent RPM regardless of the load applied to it. When this shaft wears, corrodes, or develops excessive play, the governor arm loses its precise pivot and the engine can surge, hunt, or drift away from its set speed; on a generator, that instability directly affects the quality of the electrical output.
Part Details
| Part Number | 16541-ZA0-930 |
|---|---|
| Brand | Honda |
| Part Type | Genuine OEM |
| Description | Governor Arm Shaft |
Compatibility & Fitment
| Name | Models | Serial Range |
|---|---|---|
| Generator | ES6500, EX5500 | All |
| Horizontal Shaft Engine | GX360 | 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.
