Search
Find your tractor.
Menu ☰
Years in Production / 1912–1919
J.I. Case
20-40
Explore the specifications, hardware, and original references for the J.I. Case 20-40.

44hp
Engine estimate · from belt
2WD Only
Drive
1912–1919
Production years
J.I. Case
Manufacturer
20-40 / 01
At a glance
Production
Standard-tread tractor
Built in Racine, Wisconsin, USA
- Manufacturer
- J.I. Case
- Total Built
- 4,465
- Original Price
- $2,100 (1916)
Mechanical
Two-wheel drive
Open operator station. Optional four-post steel cab.
- Steering
- manual
Belt Pulley
- Diameter
- 24 inches60 cm
- Width
- 8.5 inches21 cm
20-40 / 02
Under the hood
Engine Detail (Option 1)
J.I. Case
kerosene
2-cylinder
liquid-cooled opposed-twin
The original engine, was used on the first model 40 tractors produced in 1912.
- Displacement
- 755 ci12.4 L
- Bore Stroke
- 7.75x8.00 inches197 x 203 mm
- Rated Rpm
- 450
- Starter Type
- hand-crank
- Fuel Type
- kerosene
- Cylinders
- 2
- Cooling
- liquid-cooled opposed-twin
Engine Detail (Option 2)
J.I. Case
kerosene
2-cylinder
liquid-cooled opposed-twin
The 8-inch bore engine replaced the original engine early in production, at the end of 1912.
- Displacement
- 904 ci14.8 L
- Bore Stroke
- 8.00x9.00 inches203 x 229 mm
- Rated Rpm
- 475
- Starter Type
- hand-crank
- Coolant Capacity
- 112 qts106.0 L
- Fuel Type
- kerosene
- Cylinders
- 2
- Cooling
- liquid-cooled opposed-twin
Engine Detail (Option 3)
J.I. Case
kerosene
2-cylinder
liquid-cooled
The final, 8.75-inch bore, engine replaced the 8-inch around 1916. Case did not re-rate the horsepower of the tractor, despite a 20% increase in displacement.
- Displacement
- 1082 ci17.7 L
- Bore Stroke
- 8.75x9.00 inches222 x 229 mm
- Rated Rpm
- 475
- Starter Type
- hand-crank
- Fuel Type
- kerosene
- Cylinders
- 2
- Cooling
- liquid-cooled
Engine Options
J.I. Case 12.4L 2-cyl kerosene
J.I. Case 14.8L 2-cyl kerosene
J.I. Case 17.7L 2-cyl kerosene
- Fuel Tank
- 42 gal159.0 L
20-40 / 03
Gears & controls
Transmission
- Transmission
- J.I. Case
- Transmission Type
- gear
- Gears
- 2 forward and 1 reverse
20-40 / 04
Size. Stance. Footprint.
Dimensions And Tires
- Weight
- 13,900 lbs6305 kg
- Front Tire
- 38x8
- Rear Tire
- 66x20
Tires And Tracks
- Front Ag
- 38x8 steel
- Rear Ag
- 66x20 steel
See it in action
Videos
Watch J.I. Case 20-40 videos from their original YouTube creators.
20-40 / 06
Tests (NTTL)
Nebraska Tractor Test 7
1082ci kerosene 2-speed 2WDApril 10 - May 7, 1920
Drawbar performance
- Id
- 7
- Belt Power Max
- 42.80 hp31.9 kW
- Belt Fuel Use Max
- 7.7 gal/hour29.1 l/hour
- Max Power
- 24.66 hp18.4 kW
- Max Pull
- 5,537 lbs2511 kg