
Product Description
Swisher Honda GX390 OHV 389cc Horizontal Shaft Engine | Model GX390UT2QNE2 | 11.7 HP
DESCRIPTION
The Honda GX390UT2QNE2 is a powerful 389cc OHV horizontal shaft engine engineered for commercial-grade reliability and performance. Delivering 11.7 HP at 3,600 RPM, this engine is ideal for powering heavy-duty equipment such as generators, pressure washers, construction machinery, and commercial mowers.
Built with Honda’s legendary engineering, the GX390 features a digital CDI ignition system with variable timing, a dual-element air cleaner, and a butterfly float-type carburetor for consistent operation. Its electric start system ensures easy startup, while the counterclockwise PTO shaft rotation provides compatibility with a wide range of equipment.
Designed for durability, the GX390 includes a splash lubrication system, centrifugal mass governor, and hardened components to withstand demanding professional applications. Compact dimensions and a manageable weight of 69 lbs make installation straightforward while ensuring long service life.
Key Features
- Powerful Output – 389cc displacement, delivering 11.7 HP (8.7 kW) @ 3,600 RPM.
- Electric Start – Reliable and easy ignition for quick operation.
- Durable OHV Design – Air-cooled 4-stroke OHV engine for efficiency and longevity.
- Precision Engineering – Digital CDI ignition with variable timing for optimal performance.
- Efficient Fuel System – Butterfly float-type carburetor and 6.4 qt fuel tank capacity.
- Reliable Lubrication – Splash lubrication system ensures consistent oil distribution.
- Clean Operation – Dual-element air cleaner for superior filtration.
- Compact & Lightweight – Weighs only 69 lbs with dimensions of 16″ × 19.1″ × 17.7″.
- OEM Quality – Genuine Honda GX390 engine, trusted worldwide for professional equipment.
Detailed Specifications
| Category | Specification |
|---|---|
| Brand | Honda |
| Model | GX390UT2QNE2 (Part# 21519) |
| Engine Series | Honda GX390 |
| Engine Type | Air-Cooled 4-Stroke OHV |
| Displacement | 389 cm³ |
| Bore × Stroke | 88 mm × 64 mm |
| Net Power Output | 11.7 HP (8.7 kW) @ 3,600 RPM |
| Compression Ratio | 8.2 : 1 |
| PTO Shaft | 1″ diameter, counterclockwise rotation (from shaft side) |
| Ignition System | Digital CDI with variable ignition timing |
| Carburetor | Butterfly float type |
| Lubrication System | Splash |
| Governor System | Centrifugal mass type |
| Air Cleaner | Dual element |
| Start Type | Electric start |
| Oil Capacity | 1.16 US qt (1.1 L) |
| Fuel Tank Capacity | 6.4 US qt (6.1 L) |
| Weight | 69 lbs |
| Dimensions (L × W × H) | 16″ × 19.1″ × 17.7″ |
| Housing Material | Cast aluminum/steel |
| Applications | Generators, pressure washers, commercial mowers, construction equipment |
Manuals & Documents
General Warranty Info:
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- The majority of products come with a manufacturer represented warranty against manufacturing defects for at least a 12 month period after the date of sale.
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