The New Holland TZ21D tractor is listed with a 18×8.5-8 front tire and a 26×12-12 rear tire.
New Holland TZ21D Tire Size Chart
Configuration
Tire size
Agricultural front
18×8.5-8
Agricultural rear
26×12-12
Lawn/turf front
18×8.5-8
Lawn/turf rear
26×12-12
Recommended tire pressure
The recommended tire pressure for the New Holland TZ21D can vary based on load and usage; but generally; it is advisable to maintain a pressure of around 0.8 bar (approximately 11.6 psi) for field work to reduce soil compaction. For road use; a higher pressure may be necessary; typically around 1.4 bar (approximately 20.3 psi).
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: The recommended tire pressure for the New Holland TZ21D can vary based on load and usage; but generally; it is advisable to maintain a pressure of around 0.8 bar (approximately 11.6 psi) for field work to reduce soil compaction. For road use; a higher pressure may be necessary; typically around 1.4 bar (approximately 20.3 psi).
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
55.1 inches 139 cm
Ground clearance
6.2 inches 15 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 New Holland official U.S. website, the official operator’s manual and the markings on the tires currently fitted.
