The 2012 Toyota Trucks 4Runner sits in the modern body-on-frame SUV tradition, blending everyday utility with the rugged character that has long made the 4Runner a favorite among drivers who split time between pavement and rougher terrain. Tire fitment on this model depends on trim, with the Limited using 245/60R20 radials while the SR5 and Trail use 265/70R17 radials. That makes wheel diameter the first thing to confirm before choosing a replacement. For SR5 and Trail owners, available 265/70R17 options lean toward an all-terrain, raised white letter presentation, so the right selection comes down to matching the tire to the vehicle's exact trim, wheel setup, and intended use.
Which Tire Size Is Right for The 2012 Toyota Trucks 4Runner
Two tire sizes apply to the 2012 Toyota Trucks 4Runner, and they are tied to different sub-models and different wheel diameters. The Limited uses a 20-inch fitment with 245/60R20, while the SR5 and Trail use a 17-inch fitment with 265/70R17. Before choosing a tire, confirm the exact sub-model and verify the wheel diameter currently on the vehicle, especially if it has been changed from its original trim-based setup.
245/60R20 is a metric radial size in which 245 identifies the nominal section width in millimeters, 60 is the aspect ratio, R designates radial construction, and 20 is the wheel diameter in inches. On the 2012 Toyota Trucks 4Runner, this size belongs to the Limited trim and reflects a lower-profile, larger-wheel setup than the 17-inch fitment used on other sub-models. That makes wheel confirmation especially important before replacement. Use this size when the vehicle retains the proper 20-inch wheel package and the goal is to stay with the Limited-specific fitment.
265/70R17 is a metric radial size with a 265-millimeter nominal section width, a 70-series profile, radial construction, and a 17-inch rim diameter. On the 2012 Toyota Trucks 4Runner, this size is used on the SR5 and Trail, where it supports a more traditional SUV and light off-road tire profile. Available choices in this size include BFGoodrich All-Terrain T/A KO2 tires with raised white letter sidewalls. This is the size to evaluate when the vehicle has the correct 17-inch wheel setup and the owner wants an all-terrain-oriented replacement.
Tire fitment for the 2012 Toyota Trucks 4Runner varies by sub-model, so identifying the exact trim matters before anything else. The key distinction is that the Limited uses a different tire size and wheel diameter than the SR5 and Trail.
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2012 Toyota Trucks 4Runner Limited
The 2012 Toyota Trucks 4Runner Limited uses a 245/60R20 radial tire, making it the trim with the larger 20-inch wheel fitment. Tire selection starts with confirming that the vehicle still has the correct 20-inch wheels, especially if it has ever been changed from its original trim-based setup.
The 2012 Toyota Trucks 4Runner SR5 uses a 265/70R17 radial tire on a 17-inch wheel. That gives the SR5 the same core fitment pattern as the Trail, so the next step is choosing among available 265/70R17 tire options based on use, load specification, and sidewall presentation.
The 2012 Toyota Trucks 4Runner Trail also uses a 265/70R17 radial tire on a 17-inch wheel. Because this trim shares its primary size with the SR5, selection is less about finding the right size and more about matching the available tire's construction details and intended use to the vehicle's setup.
The tire sizes listed on this page assume factory-standard vehicle configuration. The following modifications may affect tire fitment and are not reflected in this guide:
Suspension changes (lowering, lift kits, spring replacements)
Body alterations (fender modifications, custom bodywork)
If your vehicle has been modified from factory specifications, verify tire clearance before purchase.
Best 2012 Toyota Trucks 4Runner Tires for Sale
Available product choices center on 265/70R17, with BFGoodrich All-Terrain T/A KO2 options in raised white letter form. Buyers can compare load specification, rim-width compatibility, and overall tire character within the same all-terrain radial size.
The most important questions for the 2012 Toyota Trucks 4Runner center on trim-specific tire size, 17-inch versus 20-inch wheel fitment, and how to choose the right radial tire for road use, utility, or a more all-terrain-oriented setup.
Tire Size & Fitment
What tire size fits a 2012 Toyota Trucks 4Runner?
The 2012 Toyota Trucks 4Runner uses two different tire sizes depending on sub-model. The Limited uses 245/60R20, while the SR5 and Trail use 265/70R17. Both are radial tire fitments, but they are built for different wheel diameters and should not be treated as the same setup.
The first step is confirming which trim the vehicle is and checking the wheel diameter actually on it. A 4Runner that has had wheel changes over the years may no longer match its original trim-based fitment, so selecting by model name alone is not always enough.
What size rim does a 2012 Toyota Trucks 4Runner use?
A 2012 Toyota Trucks 4Runner uses either a 17-inch or 20-inch rim, depending on sub-model. The Limited pairs with the 245/60R20 tire on a 20-inch wheel, while the SR5 and Trail use the 265/70R17 size on a 17-inch wheel.
Rim diameter should be confirmed before ordering any replacement tire because the two primary sizes are tied to different wheel packages. Checking the sidewall, measuring the wheel, and verifying whether the truck still has its original wheels can prevent a costly mismatch.
Do all 2012 Toyota Trucks 4Runner sub-models use the same tire size?
No, the 2012 Toyota Trucks 4Runner does not use one tire size across every covered sub-model. The Limited uses 245/60R20, while the SR5 and Trail share 265/70R17. That split also means the Limited uses a different wheel diameter than the SR5 and Trail.
That difference matters because tire choice starts with trim identification, not just year and model name. Once the sub-model and wheel diameter are confirmed, the decision becomes much simpler and shifts to selecting the right radial tire style and specification within the correct size.
Choosing the Right Tire
What should I consider when choosing a tire for a 2012 Toyota Trucks 4Runner?
Start with the exact trim and tire size. A 2012 Toyota Trucks 4Runner Limited uses 245/60R20, while SR5 and Trail models use 265/70R17, so wheel diameter comes first. After that, compare construction details, intended driving use, and whether the tire matches the wheel width and load needs of the vehicle.
A road-focused 4Runner and a more trail-oriented 4Runner may call for different priorities even within the same size. It helps to check how the vehicle is actually used, whether it carries extra weight, and whether aftermarket wheels or suspension changes have altered the original fitment assumptions.
What sidewall styles are available for 2012 Toyota Trucks 4Runner tires?
For the available 265/70R17 fitment, the sidewall style offered is RWL, or raised white letter. That gives the 2012 Toyota Trucks 4Runner SR5 and Trail a more traditional SUV and light-truck appearance than a plain blackwall sidewall would provide.
Sidewall appearance is a style decision, but it should come after confirming the right size and wheel. On a vehicle like the 4Runner, the sidewall treatment can change the look noticeably, especially on an all-terrain tire, so it is worth deciding whether that visual character suits the truck's overall presentation.
How do I choose between the available 265/70R17 tires for a 2012 Toyota Trucks 4Runner?
The available 265/70R17 choices for the 2012 Toyota Trucks 4Runner are BFGoodrich All-Terrain T/A KO2 tires with different load specifications. Both use radial construction, fit a 17-inch rim, and share the same raised white letter sidewall style, so the key comparison points are load capacity, pressure relationship, and overall tire weight.
A buyer should match those differences to how the vehicle is used rather than choosing by size alone. A 4Runner that spends more time loaded, towing, or working off pavement may need a different spec than one used primarily for routine road driving, provided the wheel and vehicle setup support it.
Restoration & Appearance
Which tire should I choose for a period-style 2012 Toyota Trucks 4Runner?
For a period-style 2012 Toyota Trucks 4Runner, start by keeping the trim-specific size intact. That means 245/60R20 for the Limited and 265/70R17 for the SR5 or Trail. Staying with the correct overall fitment pattern preserves the vehicle's intended stance and keeps the visual relationship between tire and wheel closer to how the truck was originally presented.
Appearance then comes down to the character of the tire within that size. A 265/70R17 all-terrain with raised white letters gives the SR5 or Trail a more traditional SUV look, while the Limited's 20-inch fitment points toward a different visual balance. Exact originality should always be checked against trim-specific historical references.
How does tire construction affect the appearance of a restored 2012 Toyota Trucks 4Runner?
The 2012 Toyota Trucks 4Runner uses radial tire fitments, so construction changes are less about bias-ply versus radial appearance and more about how the tire's tread style, profile, and sidewall treatment shape the truck's overall look. On this model, trim-specific wheel diameter also has a major visual effect.
A Limited on 245/60R20 presents differently from an SR5 or Trail on 265/70R17 even before tread design enters the picture. For a restoration-minded owner, keeping the right size and wheel diameter is the first appearance decision, and sidewall styling becomes the finishing touch rather than the starting point.
Fitment, Maintenance & Road Use
Can modifications affect tire fitment on a 2012 Toyota Trucks 4Runner?
Yes, modifications can affect tire fitment on a 2012 Toyota Trucks 4Runner. Wheel swaps, changes in wheel width, suspension lifts, lowering, and altered offsets can all change how a 245/60R20 or 265/70R17 tire sits in the wheel opening and how much clearance it has during steering and suspension travel.
That matters most on a 4Runner because trim-specific wheel diameter is already part of the original fitment split. A truck that has been modified should be checked for wheel diameter, width, and clearance at the fenders and suspension before replacing tires, even when the sidewall size appears familiar.
What should I inspect before driving a 2012 Toyota Trucks 4Runner on new tires?
Before driving a 2012 Toyota Trucks 4Runner on new tires, inspect the wheels for correct diameter and condition, confirm the tire size matches the trim, and make sure inflation is set appropriately for the tire being used. It also helps to check for rubbing at full steering lock and look over the suspension and alignment condition.
A new tire cannot correct worn steering parts, damaged shocks, or a poor alignment. On a body-on-frame SUV, those issues can affect how the tire wears and how the vehicle tracks on the road, so a quick inspection after installation is a practical step before regular driving or a longer trip.
What should I check before a longer drive in a 2012 Toyota Trucks 4Runner?
Before a longer drive, check tire pressure, tread condition, cuts, bulges, and any signs of uneven wear on the 2012 Toyota Trucks 4Runner. It is also smart to confirm that the truck is riding on the correct trim-based tire size, since the Limited and the SR5 or Trail do not use the same wheel diameter.
Longer trips put more heat and load into the tires, so this is also the right time to recheck lug torque, look for slow air loss, and inspect the spare if one is carried. Vehicles used only occasionally can show age-related tire issues even when tread depth still looks acceptable.
