The Case IH Magnum 305 tractor is listed with a 380/80R38 front tire and a 480/80R50 rear tire.
Case IH Magnum 305 Tire Size Chart
Configuration
Tire size
Agricultural front
380/80R38
Agricultural rear
480/80R50
Recommended tire pressure
Tire pressure for a Case IH Magnum 305 depends on load; speed; and use; operators often run around 20 psi all around with full weights and a suspended axle to avoid power hop.
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: Tire pressure for a Case IH Magnum 305 depends on load; speed; and use; operators often run around 20 psi all around with full weights and a suspended axle to avoid power hop.
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
118.3 inches 300 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.
