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Honda Horizontal OHV Engine with Electric Start — 389cc, GX Series, 1in. x 3 31/64in. Shaft, Model# GX390UT2QNE2

Item# 6013
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Honda Horizontal OHV Engine with Electric Start — 389cc, GX Series, 1in. x 3 31/64in. Shaft, Model# GX390UT2QNE2

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Reg. $829.99
Sale $779.99

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  • Honda 389cc GX OHV air-cooled, 4-stroke, horizontal engine
  • Fuel efficient, high-output operation with precision camshaft design and a high compression ratio
  • OHV design delivers increased efficiency and optimal power transfer
  •  Digital CDI ignition system with variable timing
  • Smooth performance and reduced vibration from precision-balanced crankshaft and reduced piston weight
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Product Summary

The Honda 389cc GX Series OHV commercial-grade engine is designed for the most demanding commercial applications. It has set an industry standard for reliability and durability. Overhead Valve design offers cooler, fuel-efficient operation and cast iron cylinder sleeve provides longer service life. The GX is reliable, easy starting and quiet running. Meets EPA and CARB emission levels standards. This legendary engine has earned the reputation as the preferred engine for construction equipment. Common applications include pressure washers, compressors, go-karts, log splitters and chipper/shredders.

What's Included
  • (1) Engine, Model# GX390UT2QNE2
Genuine Honda Performance

Genuine Honda Performance

Honda's Experience Counts

There are many reasons to insist on genuine Honda engines — reasons like less down time, lower costs of ownership and better performance. As the world's largest engine manufacturer, Honda offers more engine experience than anyone, experience born on racetracks and roadways around the globe. Honda has a well-earned reputation for engine quality and performance. When you choose a Honda engine, or a product powered by Honda, you know what you're getting: an engine you can count on, now and in the future.

Commercial-Grade Honda GX Series

The Honda GX Series OHV commercial-grade engine is designed to perform in the most demanding commercial applications and has set the industry standard for reliability and durability. It's the preferred engine for construction equipment, pressure washers, compressors, go-karts, log splitters and more.

Insist on the Best

Superior Performance

Better fuel efficiency. Higher power output. Quieter performance. Easier use. No matter how you define superior engine performance, Honda engines set the standard, with best-in-class engineering and technology.

Legendary Easy Starting

Honda engines are renowned for being consistently easy to start. With a unique automatic mechanical decompression system, heavy-duty recoil ropes and advanced variable ignition timing, Honda engines are designed with quick, easy starts in mind.

Environmental Focus

Honda is committed to producing one engine for use in all 50 states. Honda engines meet the new, more stringent CARB emission requirements, and will be ready for the future lower EPA and CARB standards as they are introduced. Additionally, Honda engines meet CARB exhaust emission requirements without the use of a catalytic converter.

Insist on the Best
A Brand You Can Trust

A Brand You Can Trust

Superior Reliability and Quality

Honda sets the standard for reliable, hard-working engines, built with high-quality components designed for optimum performance in the harshest environments. Honda stands behind its engines with an industry-leading 3-year limited commercial warranty on all GX engines 100cc and larger.

Nationwide Parts and Service Support

Honda understands the importance of getting you back to work quickly. Honda has a vast nationwide support network of over 14,000 dealers. From parts to service, Honda engine dealers are there to assist you whenever and wherever you need it.

Features + Benefits

Features for Honda Horizontal OHV Engine with Electric Start — 389cc, GX Series, 1in. x 3 31/64in. Shaft, Model# GX390UT2QNE2
  • Honda 389cc GX OHV air-cooled, 4-stroke, horizontal engine
  • Fuel efficient, high-output operation with precision camshaft design and a high compression ratio
  • OHV design delivers increased efficiency and optimal power transfer
  •  Digital CDI ignition system with variable timing
  • Smooth performance and reduced vibration from precision-balanced crankshaft and reduced piston weight
  • Ball bearing-supported crankshaft offers greater stability
  • Aluminum push roads reduce both valve clearance and noise level
  • Muffler, breather valve, case cover, air intake system, rigid crankcase, helical-cut gears and lightweight materials are also designed to reduce noise level
  • Oil alert protects engine
  • Carburetor coating and filter help protect fuel from impurities
  • Cast iron cylinder sleeve
  • Reliability comes from high-quality materials, fit and finish
  • Dual-element air cleaner
  • Easy to use and maintain with simple throttle control, large fuel tanks, wide-mouth automotive-style fuel cap, dual oil fills and drains, easy to use control box and easily accessible spark plug
  • Get quick starts with the heavy-duty recoil starter with ergonomic design and automatic decompression system
  • Double walled heavy-duty tank with in tank fuel strainer
  • Battery cables not included
  • 50-state compliant engine
Key Specs
Item# 6013
Brand Honda Engines
Manufacturer's Warranty 3 year limited warranty
Ship Weight 90.0 lbs
Engine Displacement (cc) 389
Start Type Electric w/recoil backup
Application Pressure washer, compressor
Engine Type GX series OHV commercial-duty
Net Power Output (HP) 11.7 (8.7 kW) at 3,600 RPM
Net Torque (lbs./ft.) 19.5 (26.4 Nm) at 2,500 RPM
Shaft Output Horizontal
Crankshaft Q-type
Shaft Diameter (in.) 1
Shaft Length (in.) 3 31/64
Shaft Keyway (in.) 1/4
Shaft End Tapped (Diameter (in.)/Threads per inch) 3/8–24
Shaft Rotation (From PTO Shaft Side) Counterclockwise
PTO Height (in.) 5 1/4
Cylinders (qty.) 1
Cylinder Bore Cast iron
Bore x Stroke (in.) 3.5 x 2.5
Compression Ratio 8.2:1
Cooling System Air cooled
Air Cleaner Type Dual element
Fuel Tank Standard (White)
Fuel Type Gasoline
Fuel Tank Capacity (qt.) 6.4
Fuel Filter Fuel tank filler neck strainer
Oil Capacity (qt.) 1.16
Lubrication System Forced splash
Low Oil Alert Yes
Low Oil Shutdown Yes
Ignition System Electronic
Governor System Centrifugal mechanical
Carburetor Float, external vent
Throttle Control Remote (wire)
Choke Control Manual
Max. RPM 3,600
Charging System Amps 10
Muffler Included Silent, exhaust pipe protector, deflector
Auto Compression Release Yes
Bolt Circle (in.) 5, 6 1/2
Mounting Base L x W (in.) 7 11/16 x 3 25/64–4 1/16
Dimensions L x W x H (in.) 15 7/8 x 17 11/16 x 17 3/8
EPA/CARB Approval (California Air Resource Board) Yes

Customer Reviews

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Replacement Parts
Call To Order: 1-800-657-0516

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Sat 7:00 AM - 3:00 PM (Central)

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Honda Horizontal OHV Engine with Electric Start — 389cc, GX Series, 1in. x 3 31/64in. Shaft, Model# GX390UT2QNE2 The price is $779.99.
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Hide Similarities
Engine Displacement (cc)
270 389 270 389 389
Start Type
Recoil Recoil Electric w/recoil backup Electric w/recoil backup Electric w/recoil backup
Application Chipper, shredder, log splitter, compressor Pressure washer, compressor Pressure washer, compressor, log splitter Pressure washer, compressor Pressure washer, compressor
Engine Type GX series OHV commercial-duty GX series OHV commercial-duty GX series OHV commercial-duty GX series OHV commercial-duty GX series OHV commercial-duty
Net Power Output (HP) 8.5 (6.3 kW) at 3,600 RPM 11.7 (8.7 kW) at 3,600 RPM 8.5 (6.3 kW) at 3,600 RPM 11.7 (8.7 kW) at 3,600 RPM 11.7 (8.7 kW) at 3,600 RPM
Net Torque (lbs./ft.) 14.1 (19.1 Nm) at 2,500 RPM 19.5 (26.4 Nm) at 2,500 RPM 14.1 (19.1 Nm) at 2,500 RPM 19.5 (26.4 Nm) at 2,500 RPM 19.5 (26.4 Nm) at 2,500 RPM
Shaft Output
Horizontal Horizontal Horizontal Horizontal Horizontal
Crankshaft Q-type Q-type Q-type Q-type Q-type
Shaft Diameter (in.) 1 1 1 1 1
Shaft Length (in.) 3 31/64 3 31/64 3 31/64 3 31/64 3 31/64
Shaft Keyway (in.)
1/4 1/4 1/4 1/4 1/4
Shaft End Tapped (Diameter (in.)/Threads per inch) 7/16-20 3/8–24 7/16–20 3/8–24 3/8–24
Shaft Rotation (From PTO Shaft Side) Counterclockwise Counterclockwise Counterclockwise Counterclockwise CCW
PTO Height (in.)
5 1/4 5 1/4 5 1/4 5 1/4 5 1/4
Bearing Type Ball bearing - - - -
Cylinders (qty.)
1 1 1 1 1
Cylinder Bore
Cast iron Cast iron Cast iron Cast iron Cast iron
Bore x Stroke (in.)
3 x 2.3 3.5 x 2.5 3.0 x 2.3 3.5 x 2.5 3.5 x 2.5
Compression Ratio
8.5:1 8.2:1 8.5:1 8.2:1 8.2:1
Cooling System
Air cooled Air cooled Air cooled Air cooled Air
Air Cleaner Type
Dual element Dual element Dual element Dual element Dual element
Fuel Tank Yes Standard (White) - Standard (White) Standard
Fuel Type Gasoline Gasoline Gasoline Gasoline Gasoline
Fuel Tank Capacity (qt.)
5.6 6.4 5.6 6.4 6.4
Fuel Filter
Yes Fuel tank filler neck strainer Fuel tank filler neck strainer Fuel tank filler neck strainer Fuel tank filler neck strainer
Oil Capacity (qt.)
1.16 1.16 1.16 1.16 1.16
Lubrication System
Forced splash Forced splash Forced splash Forced splash Forced splash
Low Oil Alert
Yes Yes Yes Yes Yes
Low Oil Shutdown
Yes Yes - Yes Yes
Ignition System
Electronic Electronic Electronic Electronic Electronic
Governor System
Centrifugal mechanical Centrifugal mechanical Centrifugal mechanical Centrifugal mechanical Centrifugal mechanical
Carburetor
Float, external vent Float, external vent Float, external vent Float, external vent Float, external vent
Throttle Control
Manual Remote (wire) Remote (wire) Remote (wire) Remote, wired
Choke Control
Manual Manual Manual Manual Manual
Max. RPM
3,600 3,600 3,600 3,600 3,600
Charging System Amps - - - 10 3
Muffler Included Yes Silent - Silent, exhaust pipe protector, deflector -
Auto Compression Release Yes Yes - Yes -
Bolt Circle (in.)
5, 6 1/2 5, 6 1/2 5, 6 1/2 5, 6 1/2 5, 6.5
Mounting Base L x W (in.)
7 11/16 x 3 3/16–3 11/16 7 11/16 x 3 25/64–4 1/16 7 11/16 x 3 3/16–3 11/16 7 11/16 x 3 25/64–4 1/16 7.7 x 3.39–4.06
Dimensions L x W x H (in.) 15 x 16 7/8 x 16 1/8 15 7/8 x 17 11/16 x 17 3/8 15 x 16 7/8 x 16 1/8 15 7/8 x 17 11/16 x 17 3/8 -
EPA/CARB Approval (California Air Resource Board)
Yes Yes Yes Yes Yes