Honda Engines GX160UT2SMC7 20MM Crank - Bomag


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MacMillan Outdoor Power Equipment
Honda Engines
GX160UT2SMC7 20MM Crank - Bomag
Drive Type
20mm Crank Fits Bomag Plate Tamp



Honda’s GX series engines are legendary for superior reliability and performance. And there’s no doubt about it: the GX160 lives up to the legend. Lower noise levels, lower vibration, and lower emissions – without sacrificing power output or performance.

Fuel Efficient, High Output Operation
  • New design offers even better fuel economy than before!
  • Precision camshaft design offers precise valve timing and optimal valve overlap for better fuel efficency
  • OHV design for increased efficiency and optimal power transfer
  • High compression ratio for better fuel efficiency
Smooth Performance
  • Precision engineered components result in lower vibration
  • Reduced piston weight and precision balanced crankshaft result in lower engine vibration
  • Ball bearing supported crankshaft for greater stability
Exceptionally Quiet
  • Aluminum push rodes reduce both valve clearance and noise level.
  • New enhancements to the muffler, breather valve, and case cover reduce noise level
  • Reduced mechanical noise due to light weight, noise-reducing materials
  • Forged steel crankshaft and rigid crankcase
  • Helical cut gears
  • Sophisticated air intake system
Proven Reliability
  • Oil Alert
  • New carburetor chamber coating and carburetor filter help to protect against fuel impurities
  • Cast iron cylinder sleeve
  • High quality materials, fit, and finish
  • Dual element air cleaner
  • Fuel Valve
  • 3-Year Limited Warranty
Easy to Use and Maintain
  • Simple throttle control
  • Large fuel tanks
  • Large automotive type fuel cap
  • Dual oil drains and fill
  • Easy, convenient, heavy duty control box
  • Easily accessible spark plug
Easy Starting
  • Heavy duty recoil starter
  • Ergonomic, easy to grip recoil rope design
  • Automatic mechanical de-compression system
Emissions Compliant
  • Lower emissions, higher power output!
  • CARB and EPA certified
  • No catalyst necessary
Available Options
  • Low profile versions
  • Gear reduction options
  • Electic start
  • Spark arrester available
  • Charge and lamp coils with multiple output options available
  • Cyclone Air Cleaner available
  • Engine Type: Air-cooled 4-stroke OHV
  • Bore x Stroke: 68 X 45 mm
  • Displacement: 163 cm3
  • Net Power Output*: 4.8 HP (3.6 kW) @ 3,600 rpm
  • Net Torque: 7.6 lb-ft (10.3 Nm) @ 2,500 rpm
  • PTO Shaft Rotation: Counterclockwise (from PTO shaft side)
  • Compression Ratio: 9.0 : 1
  • Lamp/Charge coil options: 25W, 50W / 1A, 3A, 7A
  • Carburetor: Butterfly
  • Ignition System: Transistorized magneto
  • Starting System: Recoil Starter
  • Lubrication System: Splash
  • Governor System: Centrifugal Mechanical
  • Air cleaner: Dual Element
  • Oil Capacity: 0.61 US qt. (0.58 L)
  • Fuel Tank Capacity: 3.3 U.S. qts (3.1 liters)
  • Fuel: Unleaded 86 octane or higher
  • Dry Weight: 33 lbs. (15.1 kg)
  • Length (min): 12.2" (312 mm)
  • Width (min): 14.3" (362 mm)
  • Height (min): 13.6" (346 mm)
PTO Shaft Options
  • H type: Reduction type PTO
  • L type: Reduction type PTO
  • Q type: Straight shaft
  • R type: Reduction type PTO
  • S type: Straight shaft (metric)
  • T type: Straight shaft
  • V type: Tapered shaft



Engine Type
Air-cooled 4-stroke OHV
Bore x Stroke
68 X 45 mm
163 cm3
Compression Ratio
4.8 hp (3.6 kW) @ 3,600 rpm
7.6 lb-ft (10.3 Nm) @ 2,500 rpm
Fuel Capacity
3.3 qt. (3.1 L)
Starting System


12.2 in. (312 mm)
14.3 in. (362 mm)
13.6 in. (346 mm)
33 lb. (15.1 kg)