add to cart success

proceed to checkout
add to cart success
This product has variants and can only be added to the cart by viewing the product details page.
add to cart success

proceed to checkout
GXR120 - Manufacturer: Honda

Quality and performance come standard.

GXR120 is uniquely developed as an ideal source of power for rammers - equipment used to compact soil or other granular material. With superb durability and reliability for these heavy-duty applications, the GXR120 is more than ready to meet the high demands required.

  • Commercial Rammers
Call for price
Average Rating:


Engine TypeAir-cooled 4-stroke OHC
Bore x Stroke60 X 43 mm
Displacement121 cm3
Net Power Output*3.6 HP (2.7 kW) @ 3,600 rpm
Net Torque5.5 lb-ft (7.5 Nm) @ 2,500 rpm
PTO Shaft RotationCounterclockwise (from PTO shaft side)
Compression Ratio8.5:1
Lamp/Charge coil optionsOil alert (LED not included)
CarburetorMultiple options available
Ignition SystemTransistorized magneto
Starting SystemRecoil
Lubrication SystemForced spray system
Governor SystemMechanical
Air cleanerMultiple options available
Oil Capacity0.29 US qt. (0.28 L)
Fuel Tank CapacityNA
FuelUnleaded 86 octane or higher
Dry Weight22.9 lbs. (10.4 kg)


Length (min)10.2" (259 mm)
Width (min)11.5" (294 mm)
Height (min)11.4" (290 mm)

Pto Shaft Options

K type (tapered)Rammer
K type (straight)Straight shaft

Developed Specifically For Rammer Applications

  • Designed to power 110-lb. to 175-lb. rammers at multiple altitudes with ease.
  • More power than the GX100, with a compact, lightweight engine footprint for additional versatility in frame mounting

Fuel Efficient, High Output Operation

  • OHC design developed specifically for increased efficiency
  • Optimal power transfer for better fuel efficiency

Smooth Performance

  • Precision engineered components result in lower vibration
  • Ball bearing supported crankshaft for greater stability

Exceptionally Quiet

  • New design reduces operation noise by 1dB over the original GX100
  • Compact exhaust system is 22mm narrower than the GX100, yet quieter
  • Maintenance-free, low-noise timing belt creates a smaller, lighter and quieter engine
  • Reduced mechanical noise due to light weight, noise-reducing materials
  • Forged steel crankshaft and rigid crankcase

Proven Reliability

  • A special cast-iron cylinder sleeve and a high carbon-steel, dual-ball bearing crankshaft provide improved engine strength for rammer applications.
  • The recoil starter and fan cover are even more robust through the incorporation of steel in the design.
  • Innovative lubrication system with a dual-breather chamber optimizes engine lubricating performance in most rammer operating conditions
  • Oil Alert
  • New carburetor chamber coating and carburetor filter help to protect against fuel impurities
  • High quality materials, fit, and finish
  • 3-Year Limited Warranty

Easy to Use and Maintain

  • Simple throttle control
  • Easily accessible spark plug

Easy Starting

  • Heavy duty recoil starter
  • Ergonomic, easy to grip recoil rope design
  • Automatic mechanical de-compression system

Emissions Compliant

  • CARB and EPA compliant
  • No catalyst necessary

Add Review

No reviews have been added yet, be the 1st to add a review!