Tractor-Size › Challenger › MT645B

Challenger MT645B tire size

Factory tire pairs for the Challenger MT645B (200 HP, 4WD):

  • 200 HP
  • 4WD
Rear480/80R46Front380/85R34
4WD
Rear480/80R46
Outside dia.
1,952mm
Width
479mm
Rim
46″
Front380/85R34
Outside dia.
1,528mm
Width
380mm
Rim
34″

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: machinerylink.com

FAQ

What is the front tire size of the Challenger MT645B?

The Challenger MT645B comes from the factory with 380/85R34 front tires.

What is the rear tire size of the Challenger MT645B?

The Challenger MT645B comes from the factory with 480/80R46 rear tires.

Can I fit a different tire size on the Challenger MT645B?

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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