Biggest Tire You Can Fit on a Stock 4Runner

Toyota 4Runner is an SUV that is good for offroading while passing through rough terrain and for comfortable daily cruising on even pavement. 4Runner drivers value their vehicles for a reliable powertrain, a decent ground clearance, and various trims.

Usually, many 4Runner owners desire to improve their vehicle’s outlook by mounting bigger tires on them. With so many different tire options, you may be wondering.

What are the biggest tires that can fit a stock 4Runner?

According to the manufacturer, a 31-inch tire is the biggest size for a stock Toyota 4Runner.

The largest tire size that can be installed on a Toyota 4Runner with stock suspension without any side or additional mods is a 32-inch tire. It fits wheel wells without issues and provides no rubbing or scrubbing of fenders or suspension components.

We’ve spotted that one tenacious owner of a custom-built 4Runner even succeeded in mounting 33-inch tires on his stock vehicle. However, with no issues, a 33-inch tire only fits a stock 1987 Toyota 4Runner SUV. 

Stock Toyotas produced from 2015 to 2021 can also fit 33-inch tires. While installing 33-inch tires does not involve trim work, tires may slightly rub at full turn.

After reviewing tens of thousands of car owners’ custom-built projects from numerous forums, we distinguished the tire and rim sizes. Also, we created a helpful table with the largest tire sizes for every year.

We only provide tire sizes that do not result in any rubbing and require no fender trimming or changes to the factory suspension.

What size tire can I fit on a stock 4Runner?

Available tire size fitment for a stock 4Runner may differ and depend on the rim size, year of SUV production, and your preferences. Usually, tire sizes for Toyota 4Runner vary from 29 to 32 inches. The largest tire size that can be mounted on most stock 4Runners is a 32-inch tire. Regarding 32-inch tire parameters, they have two options: 265/75R16 or 265/70R17.

It is worth noting that some 4Runner owners managed to mount slightly larger than 32 inches tire sizes on their custom-built vehicles. The mentioned further tire sizes fit 4Runner’s of a particular year of production. People claim they fit SUVs’ stock suspension and don’t require any leveling, lift kits, or body cuts for tire accommodation.

Now move on to the examples and variations of 32-inch tire sizes. For a stock 2019 4Runner with 17-inch rims, the biggest tire size option is a 32.7×11.2 or 285/70R17. You won’t need spacers, leveling kits, or body trimming works to fit these tires in your 2019 Toyota wheel wells.

A 2014-2018 stock Toyota 4Runner, equipped with 18-inch rims, can fit a 32.1×10.8 tire like a glove. Here is how the tire looks in more detailed parameters: 275/65R18. This tire size is the biggest one, which requires no side modifications to your SUV and provides no rubbing, which is suitable for daily usage.

Stock Toyota 4Runners manufactured in 2021 equipped with 20-inch rims also can accommodate a 32-inch tire.

Here is how it looks in more detail: 32.3×11.2 tire on 20×10 wheels or 285/55R20. This tire size fits 4Runner’s OEM suspension, so there is no need for spacers, leveling, or lift kits. Moreover, it doesn’t rub wheel wells, especially while turning full lock-to-lock. 

If you want to go further and mount a 33-inch tire on your stock Toyota 4Runner, you will be a bit amazed that it is quite possible. However, only the 1987 Toyota 4Runner can fit 33-inch tires without side modifications. 

You won’t need to upgrade your suspension or resort to plastic trimming of the body parts of your SUV. This setup looks like 33×10.5 tire on 17×8.5 rim or 265/75R17.

Newer stock 4Runners produced from 2015-2021 can also run 33-inch tires. Tires fit modern 4Runners with no need for trimming works. However, many owners claim they’ve faced slight rubbing at full turn.

What size tires come on stock 4Runner 20–inch wheels?

On a Toyota 4Runner with stock 20-inch rims, the maximum stock tire size may vary due to the SUVs’ year of production. In general, most 4Runners with 20-inch rims are equipped with 245/60R20 tires from the factory.

What are the biggest tires that can go on a stock 4Runner with 18-inch rims?

The biggest tire size for an unmodified 4Runner with 18-inch rims is usually slightly bigger than 32 inches. As an example, a 32.1-inch tire can be mounted on a fully stock 2018-2021 Toyota 4Runner.

The tallest tires you can put on a stock 4Runner with 17-inch rims?

The largest size of a tire that can be installed on a 17-inch rim can be different and depend on the year of 4Runner’s production. For example: for a 1987 4Runner with 17-inch rims the biggest tire size is a 33-inch tire while for a 2021 Toyota 4Runner, it is a 32.3 tire.

What Are My 4Runner’s Largest Tire Options?

The table below lists the largest tire combinations for various rim diameters installed by 4Runner enthusiasts on their modified Toyota SUVs.

All the tire and rim sizes shown in this table allow you to install the largest tire with stock suspension without arch trimming or fenders rubbing, depending on the year the SUV model was made.

What size tires are best for a stock 4Runner?

Upgrades to larger tires typically necessitate further truck modifications. Sometimes one must use leveling or lift kits, perform minor or many cuts to the SUV’s body, or remove accessories like mud flaps to fit slightly bigger tires.

If you wonder whether you can fit different tire sizes on your 4Runner, the answer is yes.

The Toyota 4Runner tires sizes can vary from 225/75R15 to 265/55R20, taking into account trim level and year of your truck production.

To make determining tire sizes easier, we’ve gathered information about each generation of Toyota 4Runner SUV stock models and the tire sizes they can fit. With the guidance of the table below, determining which tire size is appropriate for your Toyota 4Runner should be simplified.

Can you fit 33-inch tires on a stock Toyota 4Runner?

Theoretically, it is possible to install a 33-inch tire on a stock 4Runner. Speaking about 4Runners manufactured from 2015 to 2021, they can fit 33-inch tires without needing body trimming. However, one may face slight rubbing, especially at a complete turn. The only exception is a stock 1987 Toyota 4Runner that can run 33-inch tires without concern.

Will 35-inch tires fit on a stock 4Runner?

Entirely stock Toyota 4Runner cannot run on 35-inch tires without additional suspension and body upgrades.