Description
Overview:
The Governor Arm for Honda GX390 and GX340K1 (GC05) engines is a genuine Honda component designed to control and stabilise engine speed under changing loads. Made from robust metal with a corrosion-resistant finish, it links the governor mechanism to the throttle to deliver smooth, consistent RPM. This helps prevent hunting or over-revving, protecting the engine and attached equipment. Built specifically for Honda GX390 and GX340 series engines, it provides an accurate fit and reliable operation in demanding site and garden environments. Ideal for maintaining performance on equipment powered by the GX390 or GX340K1, this arm supports correct governor function so your machine starts easily, responds predictably, and runs efficiently. OEM reference: 16551 ZE3 000. Genuine Part by Honda.
Key Features:
- Genuine Honda Part for assured compatibility and build quality
- OEM number 16551 ZE3 000 for precise identification and fit
- Durable steel construction with a corrosion-resistant finish for long service life
- Accurate linkage geometry helps maintain stable RPM and reduce surging
- Designed for Honda GX390 and GX340 family, including K1 and related variants
- Enhances engine response under varying load conditions for smoother operation
- Works with the original governor linkage and throttle components
- Straightforward replacement using standard hand tools for minimal downtime
- Suitable for workshop or on-site maintenance in construction and landscaping
- Supports efficient fuel use by keeping engine speed within factory settings
Typical Applications:
Used on machinery powered by Honda GX390/GX340 engines, including site generators (e.g. EC5000), water pumps, pressure washers, plate compactors, mixers, chippers, and compressors. Ideal for restoring proper speed control on equipment that shows hunting, uneven idle, or poor load response due to worn or bent governor linkage parts.
Also known as:
Governor lever, speed governor arm, governor control arm, throttle governor arm, governor link arm, engine speed regulator arm, governor rocker, throttle control lever.
Fits Models:
EC5000, GX340K1, GX340T1, GX340T2, GX340U1, GX340UT1, GX390, GX390H1, GX390K1, GX390T1, GX390T2, GX390U1, GX390UT1, GX390UT2
Product Specifications
| L&S Part No. | 16551 ZE3 000 |
|---|---|
| Part Type | Genuine Part |
| Manufacturer | Honda |
| OEM No. | 16551ZE3000 |
| Unit of Sale | 1 |
| Machine Type | Engines |
| Fits Brands | Honda |
| Key Features | - Genuine Honda part ensures compatibility with GX390/GX340 engines - OEM number 16551 ZE3 000 for precise identification - Durable steel with corrosion-resistant finish for longevity - Accurate linkage geometry stabilises engine RPM - Fits models including GX390, GX340K1, and related variants |
| Fits Models | GX340K1 (GC05) | GX340U1 (GCAMK) | GX340UT1 (GCAVT) | GX340T1 (GCAWT) | GX340T2 (GCBFT) | GX340K1 (GDAE) | GX390K1 (GDAF) | GX390T1 (GCAET) | GX390H1 (GCAFH) | GX390UT1 (GCAKT) | GX390U1 (GCANK) | GX390UT2 (GCBCT) | GX390T2 (GCBDT) | GX390K1 (GCAA) | EC5000 |

