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Years in Production / 1960–1967
Allis-Chalmers
H3
Explore the specifications, hardware, and original references for the Allis-Chalmers H3.
35hp
Engine estimate · from PTO
Tracks
Drive
1960–1967
Production years
Allis-Chalmers
Manufacturer
H3 / 01
At a glance
Production
Agricultural Crawler tractor
Built in Springfield, Illinois, USA
The Allis-Chalmers H3 crawler was based on the gas-powered D15 farm tractor.
- Manufacturer
- Allis Chalmers
Mechanical
Mechanical contracting band brakes
Open operator station.
- Drive
- crawler
- Steering
- mechanical clutches
Capacity
- Fuel
- 14 gal53.0 L
- Hydraulic System
- 16.5 gal62.5 L
Hydraulics
- Type
- open center
- Capacity
- 16.5 gal62.5 L
- Valves
- 1 to 3
- Pump Flow
- 15 gpm56.8 lpm
- Pump Flow
- 25 gpm (optional)94.6 lpm
Pto
- Rear Pto
- optional
- Rear Type
- 540
H3 / 02
Under the hood
Engine Detail
Allis Chalmers
gasoline
4-cylinder
liquid-cooled
- Displacement
- 149 ci2.4 L
- Bore Stroke
- 3.50x3.875 inches89 x 98 mm
- Fuel System
- Marvel-Schebler carburetor
- Air Cleaner
- oil bath
- Compression Ratio
- 7.5:1
- Rated Rpm
- 1650
- Starter
- electric
- Starter Volts
- 12
- Coolant Capacity
- 9 qts8.5 L
- Fuel Type
- gasoline
- Cylinders
- 4
- Cooling
- liquid-cooled
H3 / 03
Gears & controls
Transmission (Option 1)
Four gears (1-4) plus reverse (R) with two-speed high/low power shift.
- Transmission
- Power Director
- Transmission Type
- two-speed power shift
- Gears
- 8 forward and 2 reverse
- Clutch
- wet disc (Power Director)
- Clutch
- dry disc (gear)
Transmission (Option 2)
- Transmission Type
- mechanical shuttle
- Gears
- 4 forward and reverse
H3 / 04
Size. Stance. Footprint.
Tires And Tracks
7-inch tracks
- Wheelbase
- 64 inches162 cm
- Weight
- 7395 lbs3354 kg
Tires And Tracks
- Width
- 7 inches17 cm
- Width
- 10 inches25 cm
- Width
- 12 inches30 cm
- Width
- 14 inches35 cm
See it in action
Videos
Watch Allis-Chalmers H3 videos from their original YouTube creators.
H3 / 06
Tests (NTTL)
Nebraska Tractor Test 793
Gasoline 8-speed crawlerMay 12 - 25, 1961
PTO performance
Drawbar performance
Gear 2H used for power test.
Gear 1L used for pull test.
- Id
- 793
- Power At Rated Engine Speed
- 32.11 hp23.9 kW
- Fuel Use
- 2.9 gal/hour11.0 l/hour
- Max Power
- 25.48 hp19.0 kW
- Max Pull
- 7893 lbs3580 kg