The Allis Chalmers S tractor weighs 20,100 lb (9,117 kg) using its primary published weight. That places it around the 56th percentile among tractors in the dataset, close to the middle of its peer group. With 84.3 hp, the tractor carries about 238.4 lb of published weight per horsepower.
The published Allis Chalmers S weight is 20,100 lb (9,117 kg). The primary figure used for comparisons is 20,100 lb (9,117 kg), listed as Weight.
Tractor-weight benchmark
How this weight compares
All tractors in this dataset · 2,282 tractors in the benchmark.
Representative published weight
Heavy
20,100 lb
Low1,984 lb
This model20,100 lb
Average9,927 lb
High21,767 lb
Low and high use the 10th and 90th percentiles of the peer group, which keeps one unusually light or heavy tractor from distorting the scale. Average is the peer-group mean.
At a glance
Tractor profile
Published weight20,100 lb (9,117 kg)
Overall weight bandVery heavy
Tractor typeFarm tractor
Primary horsepower84.3 hp / 62.9 kW
Max length146 in (370 cm)
Max width97 in (246 cm)
Overview
Model information
Manufacturer
Allis Chalmers
Model
S
Category
Farm tractor
Model years
1937 – 1942
Tractor type
Farm tractor
Published weight variants
1
Published configurations
Weight variants
Shipping, operating, ballasted and drivetrain/configuration weights are kept separate when the source publishes them separately.
Weight type
Configuration
Weight
Metric
US tons
Variant / note
Weight
—
20,100 lb
9,117 kg
10.05
—
Dimensions, power & hauling
Technical details
Dimensions
Length146 in (370 cm)
Width97 in (246 cm)
Height74 in (187 cm)
Power & weight ratios
Primary power84.3 hp (62.9 kW)
Power basisPTO (tested)
Weight per horsepower238.4 lb/hp
Weight per foot of length1,652.1 lb/ft
Transport snapshot
Primary published weight20,100 lb (9,117 kg)
Maximum published weight20,100 lb (9,117 kg)
Maximum US-ton equivalent10.05 US tons
Maximum published width97 in (246 cm)
Published width over 102 inNo
Weight context
Weight range20,100 lb (9,117 kg)
Primary weight basisWeight
Peer positionHeavy among All tractors in this dataset · 89th percentile
Physical size classMid-size
For transport planning, the representative published tractor weight is about 20,100 lb (10.05 US tons); published configurations reach 20,100 lb (10.05 US tons); the widest published tractor dimension is 97 in (8.1 ft). Actual transport weight and dimensions can increase with fuel, ballast, a loader, implements, tires and other installed equipment.
Nearby benchmarks
Tractors with similar weight
Useful reference points from the same dataset.
Closest by published weight
John Deere 8120 (20060 lb)
Allis Chalmers WS (20155 lb)
John Deere 8220 (20045 lb)
John Deere 8320 (20030 lb)
Allis Chalmers 440 (20230 lb)
Closest comparable tractors
Allis Chalmers WS (20155 lb, 84 hp)
Allis Chalmers HD10 (20380 lb, 82.19 hp)
Allis Chalmers L (22000 lb, 91.99 hp)
John Deere 5020 (17350 lb)
International Harvester TD-18 (21500 lb, 72.38 hp)
Common questions
Allis Chalmers S weight FAQ
How much does an Allis Chalmers S weigh?
The Allis Chalmers S weighs 20,100 lb (9,117 kg) using the primary published weight figure.
Is the Allis Chalmers S a heavy farm tractor?
Yes. The representative figure sits at about the 89th percentile, heavier than roughly 89% of the all tractors in this dataset. That puts it in the heavy range for this comparison. It is 10,173 lb heavier than the peer-group average of 9,927 lb.
How wide is the Allis Chalmers S for transport?
The maximum published tractor width is 97 in (8.1 ft). That is 5 in under 8.5 ft before allowing for a loader, duals, implements or other equipment that may increase transport width.
Does the Allis Chalmers S weigh more than 10,000 lb?
Yes. The representative published weight is 20,100 lb, and the heaviest published configuration on this page is 20,100 lb (10.05 US tons). Any trailer calculation also needs the trailer itself plus fuel, ballast, attachments and other equipment.
What is the Allis Chalmers S weight-to-horsepower ratio?
Using the page’s representative 20,100 lb weight and 84.3 hp power figure, the tractor carries about 238.4 lb per horsepower. A lower lb/hp number means less tractor mass for each horsepower; this is a comparison metric, not a traction or performance rating.
How many tons does the Allis Chalmers S weigh?
The representative published weight is about 10.05 US tons, while the full published range is 10.05 US tons. Loaded transport weight can be higher than the tractor specification.
