HONDA Engine GX390 Type - GX390UTQA2 | PN 6600010

Introducing the Honda GX390, the ultimate workhorse engine designed to power through the toughest jobs with unparalleled efficiency and reliability. This powerhouse of an engine boasts a 389cc displacement, delivering an impressive 11.7 HP at 3,600 RPM, making it perfect for a wide range of heavy-duty applications such as pressure washing and custom rigs.  The GX390 offers exceptional performance and durability.

Equipped with a precision-engineered overhead valve (OHV) design, the GX390 ensures cooler operation and enhanced fuel efficiency, allowing you to save on operational costs. The engine features a cast iron cylinder sleeve and a high-quality ball bearing-supported crankshaft, ensuring long-lasting performance and reduced wear and tear.

The GX390 also prioritizes user convenience and safety. Its easy-to-access oil drain and fill, along with an automatic mechanical de-compressor, make maintenance straightforward and hassle-free. The advanced digital CDI ignition system ensures reliable starting, while the Oil Alert® system protects the engine by shutting it down if the oil level drops too low.

Built with Honda's legendary attention to detail and engineering excellence, the GX390 is the go-to choice for professionals who demand the best. Experience the unmatched power, reliability, and efficiency of the Honda GX390 engine today.

Honda specs for the GX 390

• Engine Type - Air-cooled 4-stroke OHV
• Bore: 88 X 64 mm
• Displacement: 389 cm3
• Net Power Output:  11.7 hp (8.7 kW) @ 3,600 rpm
• Net Torque:19.5 lb-ft (26.5 Nm) @ 2,500 rpm
• PTO Shaft Rotation : Counterclockwise (from PTO shaft side)
• Compression Ratio: 8.2:1
• Lamp/Charge coil options : 25W, 50W / 1A, 3A, 10A, 18A
• Carburetor:  Butterfly Float Type
• Ignition System:  Digital CDI with variable timing
• Starting System: Recoil/electric
• Lubrication System:  Splash
• Governor System: Centrifugal Mass Type
• Air Cleaner: Dual element
• Oil Capacity: 1.16 US qt (1.1 L)
• Fuel Tank Capacity: 6.4 U.S. qts (6.1 liters)
• Fuel: Unleaded 86 octane or higher
• Dry Weight: 69 lb (31.5 kg)

Dimensions

LWH : 16x19.1x17.7

Pumps to pair with:

The Honda GX390 pairs perfectly with 4-5.5 GPM pumps such as the 6600137 Comet pump ZWD4040, 6600130 Comet ZWD5030 and 6600157 CometRW5535