Brand siblingAllis Chalmers S
The Allis Chalmers S is a powerful crawler tractor built for tough agricultural work. It runs on tracks instead of wheels, making it great for working in muddy or uneven fields. The tractor has a strong diesel engine with four cylinders and a very high displacement of 675.1 cubic inches. This engine runs at a low speed of 1050 rpm, which helps it save fuel and last longer. This tractor is big and heavy, weighing 20,100 pounds. It's 146 inches long, 97 inches wide, and 74 inches tall. The S model has a 5-speed gear transmission for moving forward and one gear for going backward. It uses manual steering and has an electric starter that runs on 6 volts. The engine is cooled by liquid, and the tractor can hold 50 quarts of coolant to keep it running smoothly in hot weather.

Quick specs
- Category
- Crawler
- Operating Weight
- 20,100 lb
- Transmission
- Gear
Overview
About the Allis Chalmers S
The Allis Chalmers S is a powerful crawler tractor built for tough agricultural work. It runs on tracks instead of wheels, making it great for working in muddy or uneven fields. The tractor has a strong diesel engine with four cylinders and a very high displacement of 675.1 cubic inches. This engine runs at a low speed of 1050 rpm, which helps it save fuel and last longer. This tractor is big and heavy, weighing 20,100 pounds. It's 146 inches long, 97 inches wide, and 74 inches tall. The S model has a 5-speed gear transmission for moving forward and one gear for going backward. It uses manual steering and has an electric starter that runs on 6 volts. The engine is cooled by liquid, and the tractor can hold 50 quarts of coolant to keep it running smoothly in hot weather.
Full specifications
Every recorded spec
General
| Manufacturer | Allis Chalmers |
|---|---|
| Model | S |
| Category | Crawler tractor |
| Type | Crawler |
| Operating weight | 20,100lb |
Engine
| Make | Allis Chalmers |
|---|---|
| Cylinders | 4 |
| Displacement | 675.1ci |
| Bore | 5.75in |
| Stroke | 6.5in |
Transmission
| Type | Gear |
|---|---|
| Forward gears | 5 |
| Reverse gears | 1 |
Chassis & drive
| Chassis | Crawler |
|---|---|
| Drive | Track |
| Steering | Manual |
Dimensions
| Length | 146in |
|---|---|
| Width | 97in |
| Height | 74in |
| Operating weight | 20,100lb |
Capacities
| Cooling system | 12.5gal |
|---|
Head to head
S vs. Crawler median
How the Allis Chalmers S compares to other Crawler tractors
| Spec | This model | Crawler median | Difference | Percentile |
|---|---|---|---|---|
| Engine Displacement | 675 ci | 468 ci | +44% | 72nd |
| Cylinders | 4 | 6 | -33% | 33rd |
| Forward Gears | 5 | 10 | -50% | 25th |
| Operating Weight | 20,100 lb | 23,320 lb | -14% | 46th |
| Length | 146 in | 146 in | at median | 50th |
| Width | 97 in | 79.5 in | +22% | 65th |
| Height | 74 in | 90.6 in | -18% | 27th |
Medians and percentiles are computed from the crawler tractors in our database with a recorded value for each spec (sample sizes 134–192 models).
Compare to tractors with similar specs
Commonly compared Allis Chalmers tractors
| Tractor | Engine Power | Operating Weight | Years | Compare |
|---|---|---|---|---|
| Allis Chalmers 160 | 40 hp | 4,674 lb | 1970–1975 | Compare → |
| Allis Chalmers 170 | — | 5,720 lb | 1968–1973 | Compare → |
| Allis Chalmers 7000 | 117 hp | 9,550 lb | 1975–1979 | Compare → |
| Allis Chalmers HD10 | — | 20,380 lb | — | Compare → |
| Allis Chalmers HD11 | 110 hp | 21,000 lb | 1955–1965 | Compare → |
Commonly compared tractors with similar horsepower from other brands
| Tractor | Engine Power | Operating Weight | Years | Compare |
|---|---|---|---|---|
| Advance-Rumely 6A | — | 6,370 lb | — | Compare → |
| Advance-Rumely DoAll | — | 3,702 lb | — | Compare → |
| Advance-Rumely OilPull B 25/45 | — | 25,000 lb | — | Compare → |
| Advance-Rumely OilPull E 30/60 | — | 26,300 lb | — | Compare → |
| Advance-Rumely OilPull F 15/30 | — | 16,500 lb | — | Compare → |
Explore
Allis Chalmers siblings
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Gallery
Allis Chalmers S photos






FAQ
Common questions
How many cylinders does the Allis Chalmers S have?
The Allis Chalmers S runs a 4-cylinder engine with a displacement of 675.1 ci.
Which transmission does the Allis Chalmers S use?
The Allis Chalmers S is equipped with a Gear transmission with 5 forward gears.
What is the operating weight of the Allis Chalmers S?
In working trim, the Allis Chalmers S comes in at roughly 20,100 lb.
How do I maintain a Allis Chalmers S?
Routine service for the Allis Chalmers S covers engine oil and filter changes, hydraulic and coolant level checks, air filter cleaning, and scheduled inspections. Refer to the manufacturer's maintenance schedule for exact intervals.


