Description
Overview:
This Control Assembly (16570-ZE3-W20) is a genuine Honda throttle and governor control unit for GX340 and GX390 series petrol engines. Built from robust steel components with a corrosion‐resistant coating, it includes the levers, bracket and return spring needed to regulate engine speed accurately. The assembly restores smooth, predictable throttle response and stable governed RPM, helping engines run efficiently under varying loads. It is designed as a direct replacement to fit the control side of the engine without modification, making it suitable for routine maintenance or repair. Ideal for construction and garden machinery powered by Honda GX340 or GX390 platforms, such as generators and pressure washers, where reliable speed control is essential for performance, fuel economy and equipment protection.
Key Features:
- Genuine Honda part for assured compatibility and long service life
- Direct replacement for 16570-ZE3-W20 with OEM geometry and linkage points
- Pre-assembled control bracket with lever and spring for quick, straightforward fitting
- Steel construction with protective finish to resist wear, vibration and corrosion
- Provides precise throttle and governor control for stable idle and rated speed
- Helps cure inconsistent engine speed, hunting or poor throttle response caused by worn controls
- Supports reliable operation of GX340/GX390 engines across tough site and outdoor conditions
- Suitable for routine maintenance to keep engines performing to specification
Typical Applications:
Commonly used on equipment powered by Honda GX340 and GX390 engines, including site generators, pressure washers, water pumps, plate compactors, cement mixers, welders and agricultural or garden machinery. Ideal when refurbishing engines, resolving speed stability issues, or returning units to factory control settings after heavy use.
Also known as:
Throttle control unit, governor control assembly, speed control lever, throttle lever assembly, engine control bracket, governor linkage assembly, throttle/governor control pack.
Fits Models:
GX340, GX340K1, GX340T1, GX340U1, GX340UT1, GX390, GX390H1, GX390K1, GX390T1, GX390T2, GX390U1, GX390UT1
Alternate Part Numbers:
16570-ZE3-W20, 16570ZE3W20
Product Specifications
| L&S Part No. | 16570 ZE3 W20 |
|---|---|
| Part Type | Genuine Part |
| Manufacturer | Honda |
| OEM No. | 16570ZE3W20 |
| Unit of Sale | 1 |
| Machine Type | Engines |
| Fits Brands | Honda |
| Key Features | - Genuine Honda part for GX340 and GX390 engines - Direct replacement with OEM geometry and linkage - Pre-assembled with lever and spring for easy fitting - Steel construction with corrosion-resistant coating - Provides precise throttle and governor control |
| Fits Models | GX340K1 (GC05) | GX340U1 (GCAMK) | GX340UT1 (GCAVT) | GX340T1 (GCAWT) | GX340K1 (GDAE) | GX390K1 (GDAF) | GX390T1 (GCAET) | GX390H1 (GCAFH) | GX390UT1 (GCAKT) | GX390U1 (GCANK) | GX390T2 (GCBDT) | GX390K1 (GCAA) |
Reviews
Ask a Question
Compatibility
Customers also bought
-
![]()
1/8"-1" BSP Bonded Seals Assorted Box (100 pieces)£23.90 £19.92 -
![]()
Non Genuine Exhaust Assembly for Honda GX340 GX390£33.48 £27.90
