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Honda Horizontal OHV Engine for Non-Honda Pumps — 120cc, GX Series, Threaded 5/8in. x 2 7/16in. Shaft, Model# GX120UT2TX2
 
 
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Honda Horizontal OHV Engine for Non-Honda Pumps — 120cc, GX Series, Threaded 5/8in. x 2 7/16in. Shaft, Model# GX120UT2TX2
 
 
 

Honda Horizontal OHV Engine for Non-Honda Pumps — 120cc, GX Series, Threaded 5/8in. x 2 7/16in. Shaft, Model# GX120UT2TX2

Item# 605912

Only $379.99
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Manufacturer's Warranty: 3 year limited warranty
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Product Details

The Honda 120cc 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 non-Honda water pumps.

Features + Benefits

  • Honda 120cc 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
  • Does not fit Honda PE water pumps or NorthStar semi-trash pumps
  • 50-state compliant engine

Key Specs

Item#605912
Ship Weight35.0 lbs
Engine Displacement (cc)120
Start TypeRecoil
ApplicationNonHonda water pumps
Engine TypeGX series OHV–commercial duty
Rated Power (HP)3.5
Torque (ft./lbs.)5.40 at 2,500 RPM
Shaft OutputHorizontal
CrankshaftT type
Shaft Diameter (in.)5/8 (threaded)
Shaft Length (in.)2 7/16
Shaft Rotation (From PTO Shaft Side)Counterclockwise
PTO Height (in.)4 11/64
Cylinders (qty.)1
Cylinder BoreCast iron
Bore x Stroke (in.)2.4 x 1.7
Compression Ratio8.5:1
Cooling SystemAir cooled
Air Cleaner TypeDual element
Fuel TypeGasoline
Fuel Tank Capacity (qt.)2.1
Oil Capacity (qt.)0.63
Lubrication SystemForced splash
Low Oil AlertYes
Low Oil ShutdownYes
Ignition SystemElectronic
Governor SystemCentrifugal mechanical
CarburetorFloat
Throttle ControlManual
Choke ControlManual
Max. RPM3,600
Muffler IncludedYes, (standard)
Auto Compression ReleaseYes
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

Product Manual

What's Included

  • (1) Engine

Manufacturer Warranty

3 year limited warranty

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Manufacturer Warranty: 3 year limited warranty

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Item# 6032
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Honda Horizontal OHV Engine for Non-Honda Pumps — 120cc, GX Series, Threaded 5/8in. x 2 7/16in. Shaft, Model# GX120UT2TX2 The price is $379.99.
Honda Horizontal OHV Engine for Non-Honda Pumps — 120cc, GX Series, Threaded 5/8in. x 2 7/16in. Shaft, Model# GX120UT2TX2
NOT YET RATED   (Not Yet Rated - New)
Item# 605912
Only $379.99
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Item# 60025
Only $399.99
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NOT YET RATED   (Not Yet Rated - New)
Item# 60326
Only $429.99
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Hide Similarities
Engine Displacement (cc) 120 120 50 120  
Start Type Recoil Recoil Recoil Recoil  
Application Pressure washer, compressor, log splitter, chipper/shredder NonHonda water pumps Generators, pumps, tillers, small construction equipment Cement mixer, pump  
Engine Type GX series OHV–commercial duty GX series OHV–commercial duty GX series OHV–commercial duty GX series OHV–commercial duty  
Rated Power (HP) 3.5 3.5 2.1 3.5  
Torque (ft./lbs.) 5.40 at 2,500 RPM 5.40 at 2,500 RPM 2.00 at 4,500 RPM 5.40 at 2,500 RPM  
Shaft Output Horizontal Horizontal Horizontal Horizontal  
Crankshaft Q-type T type - H type  
Shaft Diameter (in.) 3/4 5/8 (threaded) 5/8 3/4  
Shaft Length (in.) 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  
Gear Reduction - - - H type 6:1  
PTO Height (in.) 4 11/64 4 11/64 3 11/32 4 11/64  
Cylinders (qty.) 1 1 1 1  
Cylinder Bore Cast iron Cast iron Cast iron Cast iron  
Bore x Stroke (in.) 2.4 x 1.7 2.4 x 1.7 1.65 x 1.42 2.4 x 1.7  
Compression Ratio 8.5:1 8.5:1 8.0:1 8.5:1  
Cooling System Air cooled Air cooled Air cooled Air cooled  
Air Cleaner Type Dual element Dual element Semidry Dual element  
Fuel Type Gasoline Gasoline Gasoline Gasoline  
Fuel Tank Capacity (qt.) 2.1 2.1 0.81 2.1  
Oil Capacity (qt.) 0.63 0.63 0.26 0.63  
Lubrication System Forced splash Forced splash Forced splash Forced splash  
Low Oil Alert Yes Yes No Yes  
Low Oil Shutdown Yes Yes - Yes  
Ignition System Electronic Electronic Electronic Electronic  
Governor System Centrifugal mechanical Centrifugal mechanical Centrifugal mechanical Centrifugal mechanical  
Carburetor Float Float Float Float  
Throttle Control Remote (wire) Manual Manual Remote (wire)  
Choke Control Manual Manual Manual Manual  
Max. RPM 3,600 3,600 7,600 3,600  
Muffler Included Yes, (standard, spark arrestor) Yes, (standard) Yes Yes, (standard)  
Auto Compression Release Yes Yes Yes Yes  
Bolt Circle (in.) 3 5/8 3 5/8 4 11/64 3 5/8  
Mounting Base L x W (in.) 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.) 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