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Fiat 70-66 tire size

Factory tire pairs for the Fiat 70-66 (70 HP, 2WD / 4WD):

  • 70 HP
  • 2WD / 4WD
Rear13.6-36Front7.50-18
2WD
Rear13.6-36
Outside dia.
1,515mm
Width
345mm
Rim
36″
radial equivalent: 340/85R36 (13.6R36)
Front7.50-18
Outside dia.
≈838mm
Width
191mm
Rim
18″
4WD
Rear13.6-36
Outside dia.
1,515mm
Width
345mm
Rim
36″
radial equivalent: 340/85R36 (13.6R36)
Front12.4-24
Outside dia.
1,160mm
Width
315mm
Rim
24″
radial equivalent: 320/85R24 (12.4R24)

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

Also written as: Fiat 7066 · Fiat 70 66

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 70-66?

The Fiat 70-66 comes from the factory with 7.50-18 or 12.4-24 front tires.

What is the rear tire size of the Fiat 70-66?

The Fiat 70-66 comes from the factory with 13.6-36 rear tires.

Can I fit a different tire size on the Fiat 70-66?

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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