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Honda Horizontal OHV Engine — 49.4cc, GXH Series, 5/8in. x 1 1/4in. Shaft, Model# GXH50UTQXA

Item# 60025
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Honda Horizontal OHV Engine — 49.4cc, GXH Series, 5/8in. x 1 1/4in. Shaft, Model# GXH50UTQXA

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Was $399.99
Sale $374.99

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  • Honda 49.4cc GXH OHV air-cooled, 4-stroke, horizontal engine
  • Applications: high-RPM
  • Automatic decompression for easy starting
  • 50-state compliant engine
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Product Summary

The Honda 49.4cc GXH Series OHV mini 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 GXH 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. Designed for high-RPM applications.

What's Included
  • (1) Engine, Model# GXH50UTQXA

Features + Benefits

  • Honda 49.4cc GXH OHV air-cooled, 4-stroke, horizontal engine
  • Applications: high-RPM
  • Automatic decompression for easy starting
  • 50-state compliant engine
Key Specs
Item# 60025
Brand Honda Engines
Manufacturer's Warranty 24 months parts / 24 months labor
Ship Weight 20.0 lbs
Engine Displacement (cc) 49.4
Start Type Recoil
Application Generator, pump, tiller, small construction equipment
Engine Type GXH series OHV commercial-duty
Net Power Output (HP) 2.1 (1.6 kW) at 7,000 RPM
Net Torque (lbs./ft.) 2.0 (2.7 Nm) at 4,500 RPM
Shaft Output Horizontal
Shaft Diameter (in.) 5/8
Shaft Length (in.) 1 1/4
Shaft End Tapped (Diameter (in.)/Threads per inch) 1/4–28
Shaft Rotation (From PTO Shaft Side) Counterclockwise
PTO Height (in.) 3 11/32
Cylinders (qty.) 1
Cylinder Bore Cast iron
Bore x Stroke (in.) 1.65 x 1.42
Compression Ratio 8.0:1
Cooling System Air cooled
Air Cleaner Type Semidry
Fuel Type Gasoline
Fuel Tank Capacity (qt.) 0.81
Oil Capacity (qt.) 0.26
Lubrication System Forced splash
Low Oil Alert No
Ignition System Electronic
Governor System Centrifugal mechanical
Carburetor Float
Throttle Control Manual
Choke Control Manual
Max. RPM 7,600
Muffler Included Yes
Auto Compression Release Yes
Bolt Circle (in.) 4 11/64
Mounting Base L x W (in.) 4 3/4 x 2 1/8
Dimensions L x W x H (in.) 8 7/8 x 10 13/16 x 13
EPA/CARB Approval (California Air Resource Board) Yes

Customer Reviews

Product Question + Answer
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Replacement Parts
Call To Order: 1-800-657-0516

Mon - Fri 7:00 AM - 6:00 PM (Central)
Sat 7:00 AM - 3:00 PM (Central)

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Honda Horizontal OHV Engine — 49.4cc, GXH Series, 5/8in. x 1 1/4in. Shaft, Model# GXH50UTQXA The price is $374.99.
Honda Horizontal OHV Engine — 49.4cc, GXH Series, 5/8in. x 1 1/4in. Shaft, Model# GXH50UTQXA
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Hide Similarities
Engine Displacement (cc)
35.8 118 49.4 98 118
Start Type
Recoil Recoil Recoil Recoil Recoil
Application Earth auger, trimmer, Graco paint striper Pressure washer, compressor, log splitter, chipper/shredder Generator, pump, tiller, small construction equipment Rammer Cement mixer, pump
Engine Type GX series 4-stroke OHC GX series OHV commercial-duty GXH series OHV commercial-duty GX series OHC commercial-duty GX series OHV commercial-duty
Net Power Output (HP) - 3.5 (2.6 kW) at 3,600 RPM 2.1 (1.6 kW) at 7,000 RPM 2.8 (2.1 kW) at 3,600 RPM 3.5 (2.6 kW) at 3,600 RPM
Net Torque (lbs./ft.) - 5.4 (7.3 Nm) at 2,500 RPM 2.0 (2.7 Nm) at 4,500 RPM 4.2 (5.7 Nm) at 3,600 RPM 5.4 (7.3 Nm) at 2,500 RPM
Shaft Output
Horizontal Horizontal Horizontal Horizontal Horizontal
Crankshaft With clutch Q-type - K-type H type
Shaft Diameter (in.) Clutch 3/4 5/8 3/5 3/4
Shaft Length (in.) Crank/piston assembly 2 7/16 1 1/4 1 2 3/32
Shaft Keyway (in.)
- 3/16 - 0.5 x 0.2 1/4
Shaft End Tapped (Diameter (in.)/Threads per inch) - 5/16–24 1/4–28 M12 x 1.25 -
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 3 11/32 4 11/64 4 11/64
Bearing Type Ball - - 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 1.65 x 1.42 2 3/16 x 1 9/16 2.4 x 1.7
Compression Ratio
8:1 8.5:1 8.0:1 8.5:1 8.5:1
Cooling System
Air Air cooled Air cooled Air cooled Air cooled
Air Cleaner Type
Semi-dry Dual element Semidry Dual element Dual element
Fuel Tank Yes - - Not included -
Fuel Type Gasoline Gasoline Gasoline Gasoline Gasoline
Fuel Tank Capacity (qt.)
0.67 2.1 0.81 - 2.1
Fuel Pump Yes - - Diaphragm pump -
Fuel Filter Yes - - Not included -
Oil Capacity (qt.)
0.106 0.59 0.26 0.42 0.59
Lubrication System
Crankcase pressure driven Forced splash Forced splash Splash Forced splash
Low Oil Alert
- Yes No No Yes
Low Oil Shutdown
- Yes - No Yes
Ignition System
Transistorized magneto Electronic Electronic Transistorized magneto Electronic
Governor System
- Centrifugal mechanical Centrifugal mechanical Centrifugal mechanical Centrifugal mechanical
Carburetor
Diaphragm (overflow return) Float Float Rammer floatless Float
Throttle Control
Manual Remote (wire) Manual Throttle Remote (wire)
Choke Control
Manual Manual Manual Throttle Manual
Max. RPM
7,000 3,600 7,600 3,600 3,600
Muffler Included
Yes Yes, (standard, spark arrestor) Yes Yes Yes, (standard)
Auto Compression Release
Yes Yes Yes Yes Yes
Bolt Circle (in.)
3.5 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 4 3/4 x 2 1/8 3.8 x 3.5 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 8 7/8 x 10 13/16 x 13 11 3/5 x 12 x 15 4/5 12 x 13 3/8 x 12 1/2
EPA/CARB Approval (California Air Resource Board)
Yes Yes Yes Yes Yes