Honda Horizontal Engine - HDA,GX390-QA2
Honda GX390 QA2 Horizontal OHV Engine, 389cc, 11.7 Net HP, 1" x 3-31/64" Crankshaft, Tapped 3/8-24UNF 2BTAP, Recoil Start, Model GX390UT2QA2
Specifications
| Brand |
Honda |
| Model Number |
GX390UT2QA2 |
| Internal ID |
HDA-GX390-QA2 |
| Replaces Models |
GX390U1QA2, GX390UT1 QA2, GX390UT1-QA2, GX390K1-QA2, GX390UT2QA2, GX390UT2QA2, GX390K1QA2 |
| Warranty |
3 Year Residential |
| Available to California |
Not Available to Ship to California |
| Weight |
78.0 lb |
| Power Output |
11.7 HP @ 3600 RPM |
| Torque |
19.5 lb-ft (26.5 Nm) @ 2500 RPM |
| Crankshaft Orientation |
Horizontal |
| Crankshaft Type |
Straight |
| Crankshaft Diameter |
1" |
| Crankshaft Length |
3-31/64" |
| Crankshaft Dimensions |
1" x 3-31/64" |
| End Tapped Size |
3/8-24UNF 2BTAP |
| Keyway |
1/4" |
| Crankshaft Rotation Direction |
Counter-Clockwise |
| Starter Type |
Recoil |
| Ignition System |
Digital CDI with Variable Ignition Timing |
| Carburetor |
Butterfly Float |
| Number of Cylinders |
One |
| Cylinder Bore |
Cast Iron Sleeve |
| Air Cleaner |
Dual Element |
| Oil Capacity |
1.16 qt |
| Low Oil Alert |
Yes |
| Fuel Type |
Unleaded 86 Octane or Higher |
| Fuel Tank Capacity |
6.4 qt |
| Fuel Pump |
N/A |
| Governor System |
Centrifugal Mass |
| Lubrication System |
Splash |
| Controls |
Manual Choke, Manual/Remote (Rod) Throttle |
| Bore x Stroke |
88mm x 64mm |
| Compression Ratio |
8.2 : 1 |
| Charging System |
N/A |
| Muffler |
Silent, Spark Arrester, Deflector |
What Our Experts Think
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Powerful & Reliable: The Honda GX390-QA2 Horizontal Engine delivers impressive power and consistent performance, making it ideal for demanding applications.
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Long-Lasting Durability: Built to withstand harsh conditions, this engine offers exceptional durability and longevity, even under heavy use.
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Fuel Efficiency: Designed with advanced fuel-saving technology, it ensures extended operation with reduced fuel consumption, lowering overall costs.
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Quiet & Smooth Operation: Its well-balanced design reduces vibrations and noise, providing a quieter and smoother experience during use.
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Easy Maintenance: Engineered for quick and easy maintenance, the GX390-QA2 allows for minimal downtime and hassle-free upkeep.
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Versatile & Powerful: Perfect for a wide range of equipment, including pressure washers, pumps, and industrial machinery, offering the reliability and performance you need for tough jobs.
Q&A
Q: What is the Honda Horizontal Engine - HDA, GX390-QA2?
A: The Honda Horizontal Engine - HDA, GX390-QA2 is a high-performance, reliable engine designed for heavy-duty outdoor machinery. Known for its power and durability, it’s ideal for commercial-grade equipment like generators, pumps, and large lawnmowers.
Q: What are the key features of the GX390-QA2 engine?
A: This engine boasts a robust OHV (Overhead Valve) design, offering excellent fuel efficiency, low emissions, and smooth operation. It features easy starting, high torque, and exceptional performance in demanding conditions.
Q: What are the benefits of using the GX390-QA2 engine?
A: The GX390-QA2 engine provides outstanding power, fuel efficiency, and minimal maintenance. Its long-lasting durability and reliable performance make it perfect for tough, continuous applications in commercial and industrial equipment.
Q: Is the GX390-QA2 engine easy to maintain?
A: Yes, the GX390-QA2 is designed for easy maintenance with accessible parts for quick oil changes, air filter replacements, and general servicing, ensuring minimal downtime.
Q: Can the GX390-QA2 engine be used for different outdoor equipment?
A: Yes, the GX390-QA2 engine is versatile and suitable for various high-demand outdoor equipment, including commercial mowers, pressure washers, water pumps, and other heavy-duty machinery requiring reliable, powerful performance.
Maintenance Tips
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Oil Change: Change engine oil every 100 hours or annually, whichever comes first.
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Air Filter: Clean or replace the air filter regularly to ensure proper airflow and engine efficiency.
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Spark Plug: Inspect and replace the spark plug annually or if engine performance declines.
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Fuel System: Use fresh, clean fuel and drain the tank if the engine is not in use for extended periods.
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Coolant: Maintain proper coolant levels to prevent overheating and engine damage.
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General Inspection: Inspect for leaks, debris, and any loose parts; clean around the engine to ensure proper ventilation.
