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Fiat 540 tire size

Factory tire pairs for the Fiat 540 (54 HP, 2WD / 4WD):

  • 54 HP
  • 2WD / 4WD
Rear12.4-32Front7.50-16
2WD
Rear12.4-32
Outside dia.
1,360mm
Width
315mm
Rim
32″
radial equivalent: 320/85R32 (12.4R32)
Front7.50-16
Outside dia.
805mm
Width
205mm
Rim
16″
4WD
Rear12.4-32
Outside dia.
1,360mm
Width
315mm
Rim
32″
radial equivalent: 320/85R32 (12.4R32)
Front9.5-20
Outside dia.
≈918mm
Width
241mm
Rim
20″
radial equivalent: 9.5R20

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: tractordata.com (ikincil)

FAQ

What is the front tire size of the Fiat 540?

The Fiat 540 comes from the factory with 7.50-16 or 9.5-20 front tires.

What is the rear tire size of the Fiat 540?

The Fiat 540 comes from the factory with 12.4-32 rear tires.

Can I fit a different tire size on the Fiat 540?

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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