The Honda 16562-ZL8-800 Throttle Return Spring is a genuine OEM component designed for a wide range of Honda engines and power equipment, including GC135, GC160, GC190, GS160, and GS190 horizontal shaft engines, FG400 and FG500 tillers, HS520 and HS720 single-stage snow blowers, and WN20 and WN30 water pumps. As a direct Honda OEM part, it is manufactured to the exact specification of the original, ensuring consistent throttle response and proper governor control. Verify your machine's serial number against the fitment table before ordering, as Honda periodically supersedes parts at production breaks.
Key Features
- Genuine Honda OEM — sourced directly from Honda, this spring meets the same tension and geometry specification as the part it replaces, so throttle response behaves exactly as Honda engineered it.
- Consistent Throttle Return — a correctly tensioned return spring snaps the throttle back to its rest position reliably; a fatigued or broken spring causes erratic engine speed, governor hunting, or an unresponsive throttle.
- Broad Equipment Compatibility — a single part number covers GC135, GC160, GC190, GS160, and GS190 horizontal shaft engines, the FG400 and FG500 tillers, HS520 and HS720 single-stage snow blowers, and the WN20 and WN30 water pumps.
- Serial Number Verification Recommended — Honda updates part numbers at production breaks, so check your unit's serial number against the fitment table to confirm this is the correct spring for your specific machine.
The throttle return spring holds tension on the throttle linkage, pulling it back toward the idle or closed position whenever the operator releases the throttle control. This keeps engine speed stable and predictable, and it works in concert with the governor to prevent the engine from over-revving under changing load conditions. When the spring stretches, loses tension, or breaks, the throttle may stick open, respond sluggishly, or allow the engine to surge — symptoms that point directly to this small but critical component.
Part Details
| Part Number | 16562-ZL8-800 |
|---|---|
| Brand | Honda |
| Part Type | Genuine OEM |
| Description | Throttle Return Spring |
Compatibility & Fitment
| Name | Models | Serial Range |
|---|---|---|
| Horizontal Shaft Engine | GC135, GC160, GC190, GS160, GS190 | All |
| Single-Stage Snow Blower | HS520, HS720 | All |
| Tiller | FG400, FG500 | All |
| Water Pump | WN20, WN30 | 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.
