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Zetor

Zetor 6421 tire size

Factory tire pairs for the Zetor 6421 (64 HP, ?):

  • 64 HP
Rear16.9-30Front9.00-16
Rear16.9-30
Outside dia.
1,485mm
Width
429mm
Rim
30″
radial equivalent: 420/85R30 (16.9R30)
Front9.00-16
Outside dia.
855mm
Width
234mm
Rim
16″

The tires on the tractor may not be original. A different size from the factory one can damage the transmission, especially on 4WD.

Take it to your tire shop: tractor-size.com

4WD ratio check and other tools →

Source: scribd.com

FAQ

What is the front tire size of the Zetor 6421?

The Zetor 6421 comes from the factory with 9.00-16 front tires.

What is the rear tire size of the Zetor 6421?

The Zetor 6421 comes from the factory with 16.9-30 rear tires.

Can I fit a different tire size on the Zetor 6421?

Equivalent sizes with a very close outside diameter can be fitted (e.g. the radial equivalent). On 4WD, a changed front/rear ratio can damage the driveline, so check it with the 4WD ratio tool first.

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