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John Deere 3640 tire size

Factory tire pairs for the John Deere 3640 (117 HP, ?):

  • 117 HP
Rear16.9-38Front12.4-28
Rear16.9-38
Outside dia.
1,685mm
Width
429mm
Rim
38″
radial equivalent: 420/85R38 (16.9R38)
Front12.4-28
Outside dia.
1,260mm
Width
315mm
Rim
28″
radial equivalent: 320/85R28 (12.4R28)

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: tractortechspecs.com

FAQ

What is the front tire size of the John Deere 3640?

The John Deere 3640 comes from the factory with 12.4-28 front tires.

What is the rear tire size of the John Deere 3640?

The John Deere 3640 comes from the factory with 16.9-38 rear tires.

Can I fit a different tire size on the John Deere 3640?

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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