The Honda 16500-Z5T-950 Control Assembly is a genuine OEM Control Assembly designed for GX390 horizontal shaft engines. As a factory-original component, this assembly is manufactured to Honda's exact specifications, ensuring a direct, no-guesswork replacement for the unit on your engine. Honda supersedes parts at serial-number breaks, so confirm your engine's serial number against the fitment table before ordering to make sure part number 16500-Z5T-950 is the correct application for your unit.
Key Features
- Genuine OEM Sourcing — manufactured by Honda to the same specification as the original, ensuring correct calibration and function for the GX390 engine's throttle and governor interface.
- Direct Replacement — this assembly is engineered to swap into the GX390's control system without adapting or modifying the existing linkage.
- Serial-Number Sensitivity — Honda revises control assemblies across production runs; always verify your engine serial number against the fitment table to confirm this is the right revision for your machine.
- Engine Speed Stability — a correctly functioning control assembly keeps the governor linkage and throttle response properly coordinated, preventing hunting, surging, or an inability to hold a set speed under load.
The Control Assembly on a GX390 horizontal shaft engine brings together the throttle and governor linkage components that regulate engine speed. It acts as the mechanical interface between the operator's speed control input and the carburetor, working in coordination with the governor to maintain steady RPM as load conditions change. When this assembly is worn, bent, or broken, the engine may surge, hunt for speed, fail to hold a steady RPM under load, or become impossible to throttle correctly — making prompt replacement essential for proper engine operation.
Part Details
| Part Number | 16500-Z5T-950 |
|---|---|
| Brand | Honda |
| Part Type | Genuine OEM |
| Description | Control Assembly |
Compatibility & Fitment
| Name | Models | Serial Range |
|---|---|---|
| Horizontal Shaft Engine | 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.
