9.00R20 Tractor Tires

Buying 9.00R20 tires

9.00R20 is a radial tire in an older inch-width format. In farm use it is fitted as a front tire on some heavy utility and front-wheel-assist tractors; the same size is also used on some older trucks and farm trailers. It is about 9 inches (229 mm) wide on a 20-inch rim.

Which tread do you need?

Tell us the machine it goes on. For a driven tractor front you need R-1 lug tread matched to the rears; for a trailer or farm truck you need a rib or highway tread with the right load rating.

• Ribbed front (F-2 style): for steering tires on two-wheel-drive tractors. The ribs hold a straight line and stop the front sliding sideways.
• R-1 lug: for driven front axles on front-wheel-assist tractors.
• I-1 rib: for trailers, wagons and implement wheels.

Our tread types guide explains the codes.

Easy to confuse

• Farm vs truck tread: 9.00R20 is made in both. A highway truck tire is not a substitute for an R-1 tractor tire on a driven front axle.
• 9.00R20 vs 9.00-20: the R means radial. Don’t mix radial and bias on the same axle.

What to check

• Ply rating: match or exceed your current tires. Tractors with a front loader or front weights need the higher rating.
• Tube type: many front rims in this size run tubes. Ask if you need new tubes too.
• Wear pattern: uneven wear on front tires usually points to toe-in, worn bearings or loader weight. Fix the cause before fitting new tires.
• Used tires: ask for the tread depth, the date code and photos of both sidewalls, and look for weather cracks.
• Pairs: replace both fronts together.

Send the quantity, where the tire goes and the delivery location for a quote. More front sizes are on our tractor tires page.

What do 9.00R20 tires cost on our site?

This size is not on a model listing yet. Send us the size and we check what we can supply.

Is 9.00R20 a radial or a bias tire?

It is a radial. The R in the size marks radial construction, and radials need careful pressure setting. See the radial vs bias guide.