The Honda 16574-Z0A-300 Lever Spring is a genuine OEM component designed for GCV520, GCV530, GXV520, and GXV530 vertical shaft engines. As a direct Honda OEM part, it is manufactured to the exact specification of the original, ensuring a correct fit without modification. This spring supports proper lever action in the throttle or governor linkage system, and replacing a worn or fatigued unit restores consistent engine response across all four compatible engine families.
Key Features
- Genuine Honda OEM — sourced directly from Honda, this part matches the original spring in rate, length, and hook geometry — the details that determine whether a lever returns crisply or drags.
- Broad Vertical-Shaft Fitment — covers GCV520, GCV530, GXV520, and GXV530 vertical shaft engines in a single part number, making it a practical stock item for shops servicing this engine family.
- Verify Before Installing — Honda updates part numbers at serial-number breaks, so confirm your engine's serial number against the fitment table to ensure part number 16574-Z0A-300 is correct for your specific unit.
- Restore Lever Response — a fatigued or broken lever spring allows slack in the throttle or governor linkage, leading to erratic speed control or failure to return to idle; this replacement brings that action back to spec.
A lever spring maintains tension on a control lever — typically within the throttle or governor linkage — so that it returns to a defined rest position after actuation. Without adequate spring tension, the lever can hang mid-travel, causing the engine to hunt, surge, or fail to hold a steady speed under load. On vertical shaft engines like the GCV520, GCV530, GXV520, and GXV530, where precise governor response is essential to equipment performance, a worn or broken spring will produce noticeable and immediate symptoms that worsen over time if left unaddressed.
Part Details
| Part Number | 16574-Z0A-300 |
|---|---|
| Brand | Honda |
| Part Type | Genuine OEM |
| Description | Lever Spring |
Compatibility & Fitment
| Name | Models | Serial Range |
|---|---|---|
| Vertical Shaft Engine | GCV520, GCV530, GXV520, GXV530 | 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.
