The Honda 16561-ZN1-000 Governor Spring is a genuine OEM component designed for GX620 and GX670 horizontal shaft engines. Sourced directly from Honda, this part meets the same specifications as the spring installed at the factory, ensuring the governor system operates exactly as intended. This replacement is the correct choice for restoring precise engine speed control on GX620 and GX670 engines that have experienced governor-related performance issues.
Key Features
- Genuine OEM Tension Integrity — manufactured to Honda's exact spring rate, so the governor linkage applies the correct force to maintain stable engine speed under changing loads
- Direct Replacement — engineered to the same dimensions and hook geometry as the original, allowing straightforward installation into the existing governor assembly without alteration
- GX620 and GX670 Fitment — confirmed for GX620 and GX670 horizontal shaft engines; verify your engine's serial number against the fitment table, as Honda supersedes parts at serial number breaks
- Speed Stability Restored — a stretched, fatigued, or broken governor spring causes engine surging, over-revving, or loss of load response; replacing it brings speed regulation back to spec
The governor spring is a critical tension element in the mechanical governor system of an engine. It works against the centrifugal force generated by the governor flyweights, creating a balanced force that holds the throttle at the position needed to maintain a steady set speed. When the spring loses tension or breaks, the governor loses the ability to counteract load changes, and the engine may surge, hunt, or run uncontrolled. Replacing a worn spring returns the governor system to balanced, stable operation.
Part Details
| Part Number | 16561-ZN1-000 |
|---|---|
| Brand | Honda |
| Part Type | Genuine OEM |
| Description | Governor Spring |
Compatibility & Fitment
| Name | Models | Serial Range |
|---|---|---|
| Horizontal Shaft Engine | GX620, GX670 | 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.
