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Ford Explorer ST tire size

Original tire sizes for the Ford Explorer ST, model years 2020, 2021, 2022, 2023 and 2024. Trim levels and wheel packages change the size within the same year, so confirm on the door-jamb sticker before ordering.

Front and rear Same size One size fits all four corners on the fitments we list.
Wheel sizes 21" Every fitment we list uses this diameter.
Tire sizes listed 1 One size per model year across the years we cover.

Check before you order. The surest answer is the tires on the car right now: the size is molded into the sidewall. The placard inside the driver's door tells you what the factory fitted. Our guide on reading a tire size shows exactly where to look.

Ford Explorer ST
Shown: 2025 Ford Explorer ST Line. Photo: Kevauto, CC BY-SA 4.0, via Wikimedia Commons

Size by year and trim

Model yearsTrim or packageTire sizeFrom
2020-2024 Standard 275/45R21 $135

Tire size by model year

Model yearTire sizeTrim or packageFrom
2024 Ford Explorer ST 275/45R21 Standard $135
2023 Ford Explorer ST 275/45R21 Standard $135
2022 Ford Explorer ST 275/45R21 Standard $135
2021 Ford Explorer ST 275/45R21 Standard $135
2020 Ford Explorer ST 275/45R21 Standard $135

Which brand should you pick?

Ford does not stamp its own approval code on tires the way Porsche or BMW do. Any tire in the right size that meets or exceeds the load index and speed rating on your door placard is a legitimate replacement, so pick on wet braking, tread life and price. Our picks for each size are on the size pages below.

Check this before you order
The tire and loading information placard on a car door jamb
Open the driver's door. The placard sits on the jamb or the B-pillar.
TIRE AND LOADING INFORMATIONFORD EXPLORER ST ORIGINAL EQUIPMENT SIZESYour own placard also gives the pressures and the load limitTIRESIZECOLD TIRE PRESSUREFRONT275/45R21SEE YOUR PLACARDREAR275/45R21SEE YOUR PLACARDTHIS IS THE SIZE YOU ORDER

The drawing carries the sizes we list for this car, so you know what you are looking for. The placard on the car is still the final word, and it is the only place that gives the cold pressures: the number molded into the sidewall is the maximum the tire can hold, not what your car wants.

What those tires cost

All four corners 275/45R21 1 of the listed Explorer ST builds from $135 per tire

Ford Explorer ST tires: common questions

What size tires does a Ford Explorer ST take?

The most common original size is 275/45R21. Other model years and trims use different sizes, so check the list on this page and confirm against the sticker inside your driver's door.

Can I fit a different size on my Ford Explorer ST?

You can, within limits: the overall diameter should stay within about 3 percent of the original, and the load index and speed rating must meet or exceed the door placard. Anything further changes your speedometer reading and can rub at full lock.

Where is the tire size on a Ford Explorer ST?

Open the driver's door and look at the white and yellow placard on the door jamb or the B-pillar. The same size is also molded into the sidewall of the tires currently on the car, unless someone changed them.

What size tires does a 2024 Ford Explorer ST take?

The 2024 Ford Explorer ST came from the factory on 275/45R21. Wheel packages can change that within the same model year, so check the placard inside the door jamb before you order.

What size tires does a 2023 Ford Explorer ST take?

The 2023 Ford Explorer ST came from the factory on 275/45R21. Wheel packages can change that within the same model year, so check the placard inside the door jamb before you order.

What size tires does a 2022 Ford Explorer ST take?

The 2022 Ford Explorer ST came from the factory on 275/45R21. Wheel packages can change that within the same model year, so check the placard inside the door jamb before you order.