Allis Chalmers 720 Specs, Weight, Price & Review

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About Allis Chalmers 720 Specs

The Allis Chalmers 720 is a 2WD sub-compact utility tractor manufactured by Simplicity for distributor Allis Chalmers from 1975 to 1983.

The Allis Chalmers 720 is equipped with a 0.8 L (49.8 cu·in) two-cylinder gasoline engine and a hydrostatic transmission with infinite (3-range) forward and reverse gears.

The Onan CCKB engine was used in the AC 720 utility tractor. It is a 0.8L, 816 cm 2, (49.8 cu*in), two-cylinder natural, aspirated gasoline engine.

The bore of the cylinder is 83.0mm (3.27 inches) and the stroke of the piston is 76.0mm (2.99 inches). The compression ratio rating of this engine is 7.0 to 1. This engine produced 19.7 PS (14.5kW; 19.5HP) at 3,600 RPM of output power.

Allis Chalmers 720 has manual steering and an open operator station. It also comes with 14.5 liter (3.8 US gall. ; 3.2 Imp. gal) fuel tank.

Allis Chalmers 720 Price 

ALLIS-CHALMERS 720 Price:USD $400.00

1976 ALLIS-CHALMERS 720 Price:USD $2,100.00

Allis Chalmers 720 Weight

589 kg (1,299 lbs)

 Allis Chalmers 720 Engine oil capacity

14.5 liters (3.8 US gal.; 3.2 Imp. gal)

Allis Chalmers 720 Model 

1975 – 1983

Allis Chalmers 720 Engine

Onan 0.8L 2-cyl gasoline

Allis Chalmers 720 Specs 

General Specifications

Model Allis Chalmers 720
Length 2,100 mm (82.7 in)
Width 1,210 mm (47.6 in)
Height 1,090 mm (42.9 in)
Wheelbase 1,420 mm (55.9 in)
Ground clearance 380 mm (15.0 in)
Weight 589 kg (1,299 lbs)
Fuel tank capacity 14.5 liters (3.8 US gal.; 3.2 Imp. gal)
Battery 12V, 53Ah
Cabin type Open operator station


Engine model Onan CCKB
Engine type Four-stroke, air-cooled, inline
Cylinders 2
Fuel type Gasoline
Displacement 0.8 L, 816 cm2, (49.8 cu·in)
Bore and stroke 83.0 mm X 76.0 mm (3.27 in X 2.99 in)
Compression ratio 7.0:1
Horsepower 19.7 PS (14.5 kW; 19.5 HP) at 3,600 rpm
Starter Electric
Oil capacity: 3.3 L (3.5 US. qt, 2.9 Imp. qt.)

Transmission and chassis

Chassis 4×2 2WD
Steering type Manual
Transmission model
Transmission type Hydrostatic
Gears Infinite (3-range) forward and reverse
Speed Forward: 16.7 kmh (10.4 mph) Reverse: 10.0 (6.2 mph)
Transmission oil capacity 5.7 L (1.5 US. gal, 1.3 Imp. gal.)


Front tires Ag: 4.00×12
Lawn/turf: 20-8.0.x10
Rear tires Ag: 8×16
Lawn/turf: 29-12.00×15

PTO (Power take-off shaft)

Front PTO type
Front PTO speed 2,000 rpm
Rear PTO type Independent with electric clutch
Rear PTO speed 2,000 rpm

Hydraulic system

Hydraulic type
Hydraulic capacity 5.7 L (6.02 US. qt, 5.02 Imp. qt.)
Pressure 500 psi (34.5 bar)
Pump flow 2.5 gpm (9.5 lpm)

Allis Chalmers 720 Attachment overview

60″ mid-mount mower deck
Front-end loader

60″ Mower deck

Type mid-mount Allis Chalmers
Cutting width 60 inches
152 cm

60″ Blade

  • Allis Chalmers
  • front-mount
  • 60 inches width
    152 cm
  • hydraulic-lift

52″ Snowblower

  • Allis Chalmers
  • 52 inches width
    132 cm
  • front-mount


  • 650 lbs lift (full at pin)
    294 kg
  • 66.5 inches clearance (dumped)
    168 cm
  • Bucket width: 40 inches
    101 cm
    Bucket width: 48 inches
    121 cm

Brantly LD6 Backhoe

Backhoe type Brantly LD6 Backhoe
Weight 925 lbs
419 kg
Transport height 72 inches
182 cm
Bucket width 8 inches
20 cm
13 inches
33 cm
16 inches
40 cm
2-Foot flat digging depth 72 inches
182 cm
Reach from pivot 108 inches
274 cm
Swing Arc 135°
Bucket force 3000 lbs
1360 kg
Dipperstick force 1560 lbs
707 kg

Allis Chalmers 720 Review

The Allis Chalmers 720, a garden tractor in production from 1968 to 1974, has garnered favor among homeowners and small-scale farmers for its dependable performance, versatility, and user-friendly design.

Under the hood, the 720 boasts a 16-horsepower Kohler K482S engine. While not a high-octane powerhouse, this engine excels in efficiency and delivers ample power for a wide array of lawn and garden chores. Additionally, the 720 comes equipped with a four-speed transmission and a two-speed rear axle, providing operators with a broad spectrum of operating speeds.

For more details check out the YouTube video


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