Allis Chalmers C
The Allis Chalmers C is a tractor produced by Allis Chalmers. It is equipped with a 125.2 ci 2.1 L engine. The listed engine power is 23.30 hp 17.4 kW. Transmission: 3 forward and 1 reverse. Operating weight: 2500 lbs 1134 kg.
Engine Power
23.30 hp
17.4 kW
Fuel & Capacities
Gasoline
Transmission
3 forward and 1 reverse
Operating Weight
2500 lbs
1134 kg
Overview
 | 1940 - 1949
Row-Crop tractor |
|---|
Production | |
|---|---|
Manufacturer | Allis Chalmers |
Row-Crop tractor | |
Built in West Allis, Wisconsin, USA | |
Total built | 84,020 |
Original price was $1,200 in 1949 | |
Allis Chalmers C Transmission | |
|---|---|
3-speed non-synchronized gear | |
Transmission details ...  |
Allis Chalmers C Power | |
|---|---|
Plows | 2 |
Drawbar (tested) | 18.4 hp
13.7 kW |
PTO (tested) | 23.30 hp
17.4 kW |
Performance test details ...  | |
Mechanical | |
|---|---|
Two-wheel drive | |
Manual steering | |
Mechanical drum brakes | |
Open operator station. |
Power Take-off (PTO) | |
|---|---|
Rear PTO | transmission |
Rear PTO Type | 560 |
Dimensions & Tires | |
|---|---|
Wheelbase | 77 inches
195 cm |
Weight | 2500 lbs
1134 kg |
Front tire | 4.00-15 |
Rear tire | 9-24 |
Full dimensions and tires ...  | |
Belt Pulley | |
|---|---|
Diameter | 8 inches
20 cm |
Width | 5.5 inches
13 cm |
RPM | 1129 |
Electrical | |
|---|---|
Ground | positive |
Charging system | generator |
Charging amps | 12 |
Battery volts | 6 |
Battery AH | 95 |
References | |
|---|---|
 | |
A New Adventure in Farming published in 1941, by Allis Chalmers | |
Two Snappy Wartime Tractors published in 1942, by Allis Chalmers | |
Diversified farming with the Allis-Chalmers Model C Tractor published in 1949, by Allis Chalmers | |
Build a Better Farm published in 1940, by Allis Chalmers | |
 | |
Operating Instructions Model C Tractor (TPL-125H) | |
Operating Instructions Model C Tractor (TPL-465N) | |
Farm Equipment Service Manual (SM-3) |
Engine
Engine options | |
|---|---|
Allis Chalmers 2.1L 4-cyl distillate | |
Allis-Chalmers 2.1L 4-cyl gasoline |
Engine Detail — 125.2 ci / 2.1 L
Manufacturer | Allis Chalmers CE |
Configuration | 4-cylinder 8-valve, liquid-cooled vertical I-head |
distillate | |
Low-octane fuel engine designed to run on tractor fuels with an octane rating of 30 or higher. | |
Displacement | 125.2 ci
2.1 L |
Bore/Stroke | 3.375x3.50 inches
86 x 89 mm |
Air cleaner | oil bath |
Compression | 4.75:1 |
Rated RPM | 1500 |
Firing order | 1-2-4-3 |
Starter volts | 6 |
Coolant capacity | 8 qts
7.6 L |
Sparkplug | Autolite A 9 |
AC 47 | |
Sparkplug gap | 0.035 inches
0.889 mm |
Point gap | 0.020 inches
0.508 mm |
Intake valve clearance | 0.010 inches (hot)
0.254 mm |
Exhaust valve clearance | 0.010 inches (hot)
0.254 mm |
Oil capacity | 4 qts
3.8 L |
Engine Detail — 125.2 ci / 2.1 L Gasoline
Manufacturer | Allis-Chalmers CE |
Fuel Type | Gasoline |
Configuration | 4-cylinder 8-valve, liquid-cooled |
Displacement | 125.2 ci
2.1 L |
Bore/Stroke | 3.375x3.50 inches
86 x 89 mm |
Air cleaner | oil bath |
Compression | 5.75:1 |
Rated RPM | 1500 |
Firing order | 1-2-4-3 |
Coolant capacity | 8 qts
7.6 L |
Sparkplug | Autolite AN 7 |
AC 45 | |
Sparkplug gap | 0.035 inches
0.889 mm |
Point gap | 0.020 inches
0.508 mm |
Intake valve clearance | 0.010 inches
0.254 mm |
Exhaust valve clearance | 0.010 inches
0.254 mm |
Oil capacity | 4 qts
3.8 L |
Allis Chalmers C Engine | |
|---|---|
 |
Transmission
Transmission — 3 forward and 1 reverse non-synchronized gear
Type | non-synchronized gear |
Gears | 3 forward and 1 reverse |
Oil capacity | 6 qts
5.7 L |
7 qts (with PTO)
6.6 L | |
Oil type | SAE20W |
 | |
Dimensions
Allis Chalmers C Tires | |
|---|---|
Ag front | 4.00-15 |
Ag rear | 9-24 |
Ag front | 6-12 |
Ag rear | 10-24 |
Dimensions | |
|---|---|
Wheelbase | 77 inches
195 cm |
Length | 114 inches
289 cm |
Width | 68.5 inches
173 cm |
Height | 62.75 inches
159 cm |
Weight | 2500 lbs
1134 kg |
Front tread | 82 inches
208 cm |
Rear tread | 52 to 80 inches
132 to 203 cm |
Tests
Tractor Tests | |
|---|---|
NTTL 363: distillate 3-speed 2WD | |
NTTL 364: gasoline 3-speed 2WD |
Nebraska Tractor Test 363 | |
|---|---|
Distillate 3-speed 2WD
October 28 - November 6, 1940
Link: Nebraska Tractor Test 363 file | |
PTO performance | |
Power at rated engine speed | 19.40 hp
14.5 kW |
Fuel use | 1.6 gal/hour
6.1 l/hour |
Drawbar performance | |
Max power | 15.96 hp
11.9 kW |
Gear 2 used for power test. | |
Max pull | 2,368 lbs
1074 kg |
Gear 1 used for pull test. | |
Nebraska Tractor Test 364 | |
|---|---|
Gasoline 3-speed 2WD
October 28 - November 7, 1940
Link: Nebraska Tractor Test 364 file | |
PTO performance | |
Power at rated engine speed | 23.30 hp
17.4 kW |
Fuel use | 2.0 gal/hour
7.6 l/hour |
Drawbar performance | |
Max power | 18.4 hp
13.7 kW |
Gear 2 used for power test. | |
Max pull | 2,352 lbs
1066 kg |
Gear 1 used for pull test. | |
Photos
Allis-Chalmers C, left side.
Allis-Chlamers C, rear view.
Allis-Chalmers C, right side.
Allis-Chalmers C operator station and controls.
Mounted plow on a Allis-Chalmers C
Allis-Chalmers C with mounted bale loader.
Allis-Chalmers C with single front wheel.
Recommended Implements & Sizing Guide
Engineering recommendations for Allis Chalmers C based on its 23.3 HP power envelope and ASAE agricultural standards.
| Implement & Operation | Recommended Size | Workload Rating | Engineering Notes |
|---|---|---|---|
Moldboard PlowPrimary Tillage | 1 to 2 Bottom (12")1 - 2 铧 (30 cm) | Light Duty | Ideal for garden plots and light sandy soil. |
Rotary Cutter / MowerMowing & Clearing | 4 ft (48 in)1.2 m | Light Duty | Pasture clipping and light brush under 1" diameter. |
Rotary TillerSeedbed Prep | 42 to 48 in105 - 120 cm | Light Duty | Covers compact tractor tire width. |
Disc HarrowSecondary Tillage | 5 to 6 ft (16-18" discs)1.5 - 1.8 m (40-45 cm 耙片) | Light Duty | Small acreage soil break-up and secondary aeration. |
Sizing & Soil Condition NoteActual implement sizing varies depending on local soil conditions (heavy clay vs sandy loam), field slope, and operating speed. Heavy tillage implements may require front ballast weights and wheel weights.
Fluids, Capacities & Working Autonomy
Standard fluid requirements, service intervals, and continuous runtime estimates for Allis Chalmers C.
Estimated Continuous Field Runtime: 1.7 hrs
Approximately 1.7 hours of continuous field operation at ~75% rated power on a full tank (2 gal / 7.6 L).
Estimated 75% Load Fuel Burn~1.2 gal/hr (4.6 L/hr)
Engine Crankcase Oil
SAE 15W-40 (Heavy Duty Diesel)
Standard Spec: API CK-4 / CJ-4 Heavy Duty
Service Interval: 150 – 250 Hours
Transmission & Hydraulic System
UTTO (Universal Tractor Transmission Oil)
Standard Spec: ISO VG 46 / 68 (Wet Brake & Trans Compatible)
Service Interval: 600 – 1000 Hours
Engine Cooling System
50/50 Ethylene Glycol Pre-mix
Standard Spec: ASTM D6210 / Heavy-Duty OAT Antifreeze
Service Interval: 2 Years / 1500 Hours
Allis Chalmers C Specification Unit Converter
Convert power, fluid capacities, and operating weights between metric and imperial standards for Allis Chalmers C.
Converted Equivalents:
Horsepower (HP)23.3 hp
Kilowatts (kW)17.4 kW
Metric Horsepower (PS / CV)23.6 PS
Direct Competitor Comparison
Compare Allis Chalmers C against same-era industry alternatives in the same horsepower class.
Current Model
Allis Chalmers
Allis Chalmers C
Engine Power:23.30 hp
17.4 kW
★ Baseline Reference
International HarvesterMarket Competitor
International Harvester 244
Engine Power:21
Production Years:1982 - 1984
Related models
Allis Chalmers 10-18
- Power:
- 20
- Production years:
- 1914 - 1923
Allis Chalmers WC
- Power:
- 23.3
- Production years:
- 1933 - 1948
Allis Chalmers WF
- Power:
- 24.4
- Production years:
- 1938 - 1951
Allis Chalmers 5020
- Power:
- 25
- Production years:
- 1977 - 1985
Allis Chalmers FD3
- Power:
- 25