Honda Horizontal OHV Engine – 389cc, GX Series, 1in. X 3 31/64in. Shaft

Honda Horizontal OHV Engine – 389cc, GX Series, 1in. X 3 31/64in. Shaft


Honda Horizontal OHV Engine – 389cc, GX Series, 1in. X 3 31/64in. Shaft

SKU: STE001249 Category:
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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, log splitters and chipper/shredders.

What’s Included
  • (1) Engine, Model# GX390UT2QAA2


Features for Honda Horizontal OHV Engine — 389cc, GX Series, 1in. x 3 31/64in. Shaft, Model# GX390UT2QAA2

  • Air-cooled 4-stroke horizontal OHV engine for increased efficiency and optimal power transfer
  • Automatic decompression and heavy-duty recoil starter for easy starting
  • Heavy-duty ball bearing supported crankshaft for greater stability
  • Large double walled heavy-duty tank with in tank fuel strainer
  • Large, easy to fill automotive-style fuel cap
  • Auto idle/throttle control for extended engine life, improved fuel economy and reduced engine noise
  • Precision camshaft for better fuel economy with precise valve timing and optimal valve overlap
  • Low noise level thanks to a large capacity, multi-chambered exhaust system
  • Improved camshaft and muffler reduce engine noise by up to 5dB
  • Oil Alert protects engine
  • Cast iron cylinder
  • Dual element air filter
  • Easy to use throttle control
  • 50-state compliant engine
  • Dual oil drains and fills for quick oil changes
  • Easily accessible spark plug
Key Specs
Item# 986
Brand Honda Engines
Manufacturer’s Warranty 3 year limited warranty
Ship Weight 85.0 lbs
Engine Displacement (cc) 389
Start Type Recoil
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

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