The Honda 16500-Z5T-000 Control Assembly (Standard) is a genuine OEM component designed for GX340 and GX390 horizontal shaft engines. As a factory-original part, this assembly meets Honda's engineering requirements exactly, ensuring the throttle and governor control linkage operates as intended. This is the Standard variant — confirm this designation matches your unit before ordering, as Honda also catalogues alternate configurations for these engines.
Key Features
- Genuine OEM Throttle and Governor Integration — sourced directly from Honda, this assembly delivers the precise calibration needed for consistent speed control and governed engine response under load
- Direct OEM Replacement — engineered to install in place of the original without modification, restoring full control-linkage function to your engine
- Fits GX340 and GX390 Horizontal Shaft Engines — confirmed fitment for both models; verify your engine's serial number against the fitment table, as Honda supersedes parts at serial breaks
- Stable Engine Speed Under Load — a functioning control assembly keeps the governor responding accurately; a worn or damaged assembly can cause hunting, surging, or an inability to hold a set speed
The control assembly manages the relationship between the throttle and the governor on the engine. It connects operator input — or an automatic speed-control setting — to the carburetor's throttle plate, while allowing the governor to make fine adjustments that keep engine speed steady as the load changes. When this assembly is worn, bent, or broken, the engine loses the ability to regulate its own speed, leading to surging, over-revving, or a loss of power under load. Replacing it with a genuine Honda part restores accurate speed governance and protects the engine from the stress of uncontrolled RPM fluctuation.
Part Details
| Part Number | 16500-Z5T-000 |
|---|---|
| Brand | Honda |
| Part Type | Genuine OEM |
| Description | Control Assembly (Standard) |
Compatibility & Fitment
| Name | Models | Serial Range |
|---|---|---|
| Horizontal Shaft Engine | GX340, GX390 | 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.
