The Case IH Farmall 40C tractor is listed with a 28×8.50-15 front tire and a 41×14.00-20 rear tire.
Case IH Farmall 40C Tire Size Chart
Configuration
Tire size
Lawn/turf front
28×8.50-15
Lawn/turf rear
41×14.00-20
Recommended tire pressure
For the Case IH Farmall 40C; rear tire pressure should be set between 12 and 16 psi for 4-ply tires and 12 to 24 psi for 6-ply tires depending on use; according to International Harvester’s operator manual recommendations cited in a tractor forum.
Before buying replacement tires
Match the complete sidewall size, rim diameter, axle position, 2WD/4WD configuration and tire type before ordering. On driven front axles, changing overall tire diameter can upset the required front-to-rear rolling ratio.
Tire Pressure
Recommended tire pressure: For the Case IH Farmall 40C; rear tire pressure should be set between 12 and 16 psi for 4-ply tires and 12 to 24 psi for 6-ply tires depending on use; according to International Harvester’s operator manual recommendations cited in a tractor forum.
Pressure warning: Confirm the correct pressure in the official operator’s manual and the tire manufacturer’s load-and-pressure chart before inflation.
Wheelbase and Ground Clearance
Wheelbase
73.2 inches 185 cm
Specification disclaimer
These specifications are provided as a reference and may vary by production year, country, axle, wheel package and previous tire changes. Before purchasing, fitting or inflating tires, confirm the specifications using the Case IH official U.S. website, the official operator’s manual and the markings on the tires currently fitted.
