The original engine, was used on the first model 40 tractors produced in 1912.
J.I. Case 14.8L 2-cyl kerosene
Bore × stroke
8 in × 9 in
Rated speed
475 rpm
Cooling
liquid-cooled opposed-twin
Notes
The 8-inch bore engine replaced the original engine early in production, at the end of 1912.
J.I. Case 17.7L 2-cyl kerosene
Bore × stroke
8.75 in × 9 in
Rated speed
475 rpm
Cooling
liquid-cooled
Notes
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.
Transmissions
Transmissions for the J.I. Case 20-40
J.I. Casegear
2F / 1R
Weight
Weight specifications
Weight
13,900 lb operating
Dimensions
Dimensions specifications
Wheelbase
no record
Length
177 in
Width
100 in
Height
107 in
Capacities
Capacities specifications
Fuel tank
42 gal
Hydraulics
Hydraulics specifications
Pump flow
no record
Hitch
Hitch specifications
Rear lift capacity
no record
Chassis
Chassis specifications
Drive
2WD
Steering
manual
Cab
Open operator station. Optional four-post steel cab
Tires
Tires specifications
Front
38x8
Rear
66x20
Production
Production specifications
Total built
4,465
Factories
Racine, Wisconsin, USA
Built by
J.I. Case
Serial numbers
Serial number plate on left side of tractor frame, above the front axle.