Description
Overview:
This Genuine Honda control assembly (OEM No. 16500 Z4H 821) regulates the throttle and governor on Honda GX120UT series engines, keeping speed stable from idle to full load. Built to Honda's specification, it uses robust pressed-steel bracketry with a protective finish and precise linkages, levers, and springs for dependable operation. It is intended for the GX120UT3 platform and is commonly specified across earlier GX120UT variants such as the GX120UT1 and GX120UT2 used in construction and garden machinery. The assembly mounts to the standard points and interfaces with the carburettor and governor arm to maintain consistent engine control, helping reduce surging and improving overall running quality in demanding site and outdoor conditions.
Key Features:
- Genuine Honda part for assured compatibility and performance
- Direct replacement for OEM No. 16500 Z4H 821 (also referenced as 16500-Z4H-821)
- Strong steel construction with a protective coating for long service life
- Factory-set geometry for accurate governor and throttle response
- Helps maintain steady RPM under varying load and ambient conditions
- Pre-assembled linkage layout for straightforward fitting and set-up
- Fits without modification on listed compatible models to minimise downtime
- Resists vibration, heat, and dust typically found on site and in outdoor use
- Supports smooth running, reliable starting, and consistent fuel control
Typical Applications:
Used on GX120-powered equipment such as plate compactors, concrete mixers, generators, water pumps, pressure washers, and tillers in construction, landscaping, and grounds care. Ideal as a service replacement when throttle response is inconsistent, idle is unstable, or original linkages and springs are worn, bent, or corroded.
Also known as:
Governor control assembly, throttle control assembly, carburettor governor linkage, control lever and bracket assembly, governor linkage set, governor arm and spring assembly, throttle linkage assembly.
Fits Models:
GX120UT1, GX120UT2
Alternate Part Numbers:
16500-Z4H-821
Product Specifications
| L&S Part No. | 16500 Z4H 821 |
|---|---|
| Part Type | Genuine Part |
| Manufacturer | Honda |
| OEM No. | 16500-Z4H-821 |
| Unit of Sale | 1 |
| Machine Type | Engines |
| Fits Brands | Honda |
| Key Features | - Genuine Honda part for GX120UT series engines - Direct replacement for OEM No. 16500 Z4H 821 - Strong steel construction with protective coating - Pre-assembled linkage for easy fitting - Maintains steady RPM under varying conditions |
| Fits Models | GX120UT1 (GCAGT) | GX120UT2 (GCBMT) |
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