The Honda 16551-ZF5-000 Governor Arm is a genuine OEM replacement designed for GXV340 and GXV390 vertical shaft engines and the Honda equipment they power, including H1011, H3011, and H3013 riding mowers, H2013, H2113, and H4013 lawn tractors, and HRC7013 and HRC7113 commercial mowers. As a direct Honda OEM component, this Governor Arm is manufactured to the same specification as the part it replaces, ensuring the mechanical linkage between the governor shaft and throttle system operates exactly as Honda intended. Confirm your machine's serial number against the fitment table before ordering, as Honda periodically updates components at production breaks.
Key Features
- Genuine OEM Governor Arm — sourced directly from Honda, this arm replicates the exact geometry needed for correct governor response across the full throttle range
- Precise Mechanical Linkage — the arm translates governor shaft movement into throttle adjustment, so engine speed remains stable under changing load conditions
- Broad Fitment — fits GXV340 and GXV390 vertical shaft engines, H-series riding mowers and lawn tractors, and HRC7013 and HRC7113 commercial mowers, including multiple production variants
- Serial Number Verification Recommended — Honda supersedes parts at production breaks; check your unit's serial number against the compatibility table to confirm this is the correct arm for your machine
The governor arm is a mechanical link in the engine's speed-control system. As engine load increases or decreases, the governor shaft rotates, and the arm transfers that movement to the throttle linkage to open or close the carburetor — keeping engine speed consistent without driver input. A worn, bent, or broken governor arm disrupts this feedback loop, causing the engine to hunt, surge, or lose the ability to hold a steady speed under load, which directly affects the cutting or drive performance of the equipment it powers.
Part Details
| Part Number | 16551-ZF5-000 |
|---|---|
| Brand | Honda |
| Part Type | Genuine OEM |
| Description | Governor Arm |
Compatibility & Fitment
| Name | Models | Serial Range |
|---|---|---|
| Commercial Mower | HRC7013, HRC7113 | All |
| Lawn Tractor | H2013, H2113, H4013 | All |
| Riding Mower | H3011, H3013 | 2012020-9999999 |
| Riding Mower | H1011 | All |
| Vertical Shaft Engine | GXV340, GXV390 | 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.
