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Honda Horizontal OHV Engine — 118cc, GX Series, 3/4in. x 2 7/16in. Shaft, Model# GX120UT2QX2

Item# 6032
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Honda Horizontal OHV Engine — 118cc, GX Series, 3/4in. x 2 7/16in. Shaft, Model# GX120UT2QX2

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Only $319.99
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  • Honda 118cc GX OHV air-cooled, 4-stroke, horizontal engine
  • Automatic decompression for easy starting
  • Heavy-duty ball bearing supported crankshaft
  • Double walled heavy-duty tank with in tank fuel strainer
  • 50-state compliant engine
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Product Summary

The Honda 118cc 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# GX120UT2QX2

Features + Benefits

  • Honda 118cc GX OHV air-cooled, 4-stroke, horizontal engine
  • Automatic decompression for easy starting
  • Heavy-duty ball bearing supported crankshaft
  • Double walled heavy-duty tank with in tank fuel strainer
  • 50-state compliant engine
Key Specs
Item# 6032
Brand Honda Engines
Manufacturer's Warranty 3 year limited warranty
Ship Weight 35.0 lbs
Engine Displacement (cc) 118
Start Type Recoil
Application Pressure washer, compressor, log splitter, chipper/shredder
Engine Type GX series OHV commercial-duty
Net Power Output (HP) 3.5 (2.6 kW) at 3,600 RPM
Net Torque (lbs./ft.) 5.4 (7.3 Nm) at 2,500 RPM
Shaft Output Horizontal
Crankshaft Q-type
Shaft Diameter (in.) 3/4
Shaft Length (in.) 2 7/16
Shaft Keyway (in.) 3/16
Shaft End Tapped (Diameter (in.)/Threads per inch) 5/16–24
Shaft Rotation (From PTO Shaft Side) Counterclockwise
PTO Height (in.) 4 11/64
Cylinders (qty.) 1
Cylinder Bore Cast iron
Bore x Stroke (in.) 2.4 x 1.7
Compression Ratio 8.5:1
Cooling System Air cooled
Air Cleaner Type Dual element
Fuel Type Gasoline
Fuel Tank Capacity (qt.) 2.1
Oil Capacity (qt.) 0.59
Lubrication System Forced splash
Low Oil Alert Yes
Low Oil Shutdown Yes
Ignition System Electronic
Governor System Centrifugal mechanical
Carburetor Float
Throttle Control Remote (wire)
Choke Control Manual
Max. RPM 3,600
Muffler Included Yes, (standard, spark arrestor)
Auto Compression Release Yes
Bolt Circle (in.) 3 5/8
Mounting Base L x W (in.) 6 3/8 x 3 5/32 to 3 11/32
Dimensions L x W x H (in.) 12 x 13 3/8 x 12 1/2
EPA/CARB Approval (California Air Resource Board) Yes

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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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Hide Similarities
Engine Displacement (cc)
35.8 118 118 49.4 118
Start Type
Recoil Recoil Recoil Recoil Recoil
Application Earth auger, trimmer, Graco paint striper Pressure washer, compressor, log splitter, chipper/shredder NonHonda water pumps Generator, pump, tiller, small construction equipment Cement mixer, pump
Engine Type GX series 4-stroke OHC GX series OHV commercial-duty GX series OHV commercial-duty GXH series OHV commercial-duty GX series OHV commercial-duty
Net Power Output (HP) - 3.5 (2.6 kW) at 3,600 RPM 3.5 (2.6 kW) at 3,600 RPM 2.1 (1.6 kW) at 7,000 RPM 3.5 (2.6 kW) at 3,600 RPM
Net Torque (lbs./ft.) - 5.4 (7.3 Nm) at 2,500 RPM 5.4 (7.3 Nm) at 2,500 RPM 2.0 (2.7 Nm) at 4,500 RPM 5.4 (7.3 Nm) at 2,500 RPM
Shaft Output
Horizontal Horizontal Horizontal Horizontal Horizontal
Crankshaft With clutch Q-type T type - H type
Shaft Diameter (in.) Clutch 3/4 5/8 (threaded) 5/8 3/4
Shaft Length (in.) Crank/piston assembly 2 7/16 2 7/16 1 1/4 2 3/32
Shaft Keyway (in.)
- 3/16 - - 1/4
Shaft End Tapped (Diameter (in.)/Threads per inch) - 5/16–24 - 1/4–28 -
Shaft Rotation (From PTO Shaft Side) Counterclockwise Counterclockwise Counterclockwise Counterclockwise Counterclockwise
Gear Reduction
- - - - H type 6:1
PTO Height (in.)
3.9 4 11/64 4 11/64 3 11/32 4 11/64
Bearing Type Ball - - - -
Cylinders (qty.)
1 1 1 1 1
Cylinder Bore
Cast iron Cast iron Cast iron Cast iron Cast iron
Bore x Stroke (in.)
1 17/32 x 1 3/16 2.4 x 1.7 2.4 x 1.7 1.65 x 1.42 2.4 x 1.7
Compression Ratio
8:1 8.5:1 8.5:1 8.0:1 8.5:1
Cooling System
Air Air cooled Air cooled Air cooled Air cooled
Air Cleaner Type
Semi-dry Dual element Dual element Semidry Dual element
Fuel Tank Yes - - - -
Fuel Type Gasoline Gasoline Gasoline Gasoline Gasoline
Fuel Tank Capacity (qt.)
0.67 2.1 2.1 0.81 2.1
Fuel Pump Yes - - - -
Fuel Filter Yes - - - -
Oil Capacity (qt.)
0.106 0.59 0.59 0.26 0.59
Lubrication System
Crankcase pressure driven Forced splash Forced splash Forced splash Forced splash
Low Oil Alert
- Yes Yes No Yes
Low Oil Shutdown
- Yes Yes - Yes
Ignition System
Transistorized magneto Electronic Electronic Electronic Electronic
Governor System
- Centrifugal mechanical Centrifugal mechanical Centrifugal mechanical Centrifugal mechanical
Carburetor
Diaphragm (overflow return) Float Float Float Float
Throttle Control
Manual Remote (wire) Manual Manual Remote (wire)
Choke Control
Manual Manual Manual Manual Manual
Max. RPM
7,000 3,600 3,600 7,600 3,600
Muffler Included
Yes Yes, (standard, spark arrestor) Yes, (standard) Yes Yes, (standard)
Auto Compression Release
Yes Yes Yes Yes Yes
Bolt Circle (in.)
3.5 3 5/8 3 5/8 4 11/64 3 5/8
Mounting Base L x W (in.)
2.78 x 2.78 6 3/8 x 3 5/32 to 3 11/32 6 3/8 x 3 5/32 to 3 11/32 4 3/4 x 2 1/8 6 3/8 x 3 5/32 to 3 11/32
Dimensions L x W x H (in.)
8 x 9 1/5 x 9 2/5 12 x 13 3/8 x 12 1/2 12 x 13 3/8 x 12 1/2 8 7/8 x 10 13/16 x 13 12 x 13 3/8 x 12 1/2
EPA/CARB Approval (California Air Resource Board)
Yes Yes Yes Yes Yes