The 2012 Ford Trucks F-350 Super Duty Lariat sits in the modern heavy-duty pickup era, where towing strength, payload capability, and everyday usability all had to work together in one truck. On a vehicle like this, tire selection is tied closely to configuration because wheel diameter and single-rear-wheel versus dual-rear-wheel setups affect the fitment. This F-350 Super Duty Lariat uses radial tires, with primary sizes ranging from 245/75R17 to 275/65R20 depending on sub-model. Available choices center on BFGoodrich All-Terrain T/A KO2 tires with RWL or RBL sidewall treatments. The key is matching the exact truck configuration first, then confirming wheel size, load needs, and intended use.
Which Tire Size Is Right for The 2012 Ford Trucks F-350 Super Duty Lariat
Four primary tire sizes apply to the 2012 Ford Trucks F-350 Super Duty Lariat, and they vary by sub-model and wheel diameter. The first step is identifying whether the truck is a 4x2, 4x4, dual-rear-wheel configuration, or a 20 Inch Option truck, because the correct tire depends on that exact setup. Once that is confirmed, the decision shifts to matching the proper radial size with the correct wheel and the product features that suit the truck's use.
275/65R20 is a metric radial size with a 275-millimeter nominal section width, a 65-series aspect ratio, and a 20-inch rim diameter. On this F-350 Super Duty Lariat fitment, it represents one of the larger wheel-package options and keeps the truck in a modern radial construction. In this size, the available BFGoodrich All-Terrain T/A KO2 uses an RBL sidewall treatment and a 7.5 to 9.5 inch rim-width range. This size is the one to evaluate when the truck has the 20 Inch Option setup and the wheel diameter has been confirmed at 20 inches.
275/65R18 is a metric radial size that combines a 275-millimeter section width with a 65-series profile on an 18-inch wheel. For the 2012 Ford Trucks F-350 Super Duty Lariat, it is one of the single-rear-wheel fitments and keeps a substantial tire footprint without moving to the 20-inch option. The available BFGoodrich All-Terrain T/A KO2 in this size uses an RWL sidewall treatment and fits a 7.5 to 9.5 inch rim-width range. It is the right size to consider when the truck is a 4x2 Lariat with factory-type 18-inch wheel diameter still in place.
245/75R17 is a metric radial size with a 245-millimeter nominal section width, a 75-series profile, and a 17-inch rim diameter. On this F-350 Super Duty Lariat, it is tied to the dual-rear-wheel configurations, which makes it distinct from the wider single-rear-wheel sizes used elsewhere in the lineup. The available BFGoodrich All-Terrain T/A KO2 carries an RWL sidewall and fits a narrower 6.5 to 7.5 inch rim-width range. This is the size to match when the truck is a DRW model and the rear wheel setup still reflects that original configuration.
275/70R18 is a metric radial size that uses a 275-millimeter section width and a 70-series aspect ratio on an 18-inch wheel. For this F-350 Super Duty Lariat, it serves the 4x4 single-rear-wheel configuration, giving it a different profile than the 275/65R18 fitment used on the 4x2 truck. The BFGoodrich All-Terrain T/A KO2 available in this size uses an RWL sidewall and fits 7.0 to 9.0 inch rim widths. This size should be chosen only after confirming the truck is the 4x4 configuration and still using the correct 18-inch wheel setup.
2012 Ford Trucks F-350 Super Duty Lariat Sub-Model Tires
Sub-model fitment matters on the 2012 Ford Trucks F-350 Super Duty Lariat because tire size changes with drivetrain, dual-rear-wheel configuration, and the available 20-inch wheel option. Identifying the exact truck setup is the first step before comparing tire features or rim-width specifications.
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2012 Ford Trucks F-350 Super Duty Lariat (20 Inch Option)
The 20 Inch Option version uses a different wheel diameter than the other Lariat configurations, so tire selection begins with confirming that 20-inch setup is still on the truck. Once that is established, the decision centers on matching the correct radial size and evaluating the available all-terrain product characteristics.
The 4x2 Lariat uses its own 18-inch radial fitment, separate from the 4x4 and dual-rear-wheel trucks. That makes wheel diameter and drivetrain configuration important to verify before choosing a replacement tire or comparing rim-width compatibility.
2012 Ford Trucks F-350 Super Duty Lariat 4x2 (DRW)
The 4x2 DRW model uses the 245/75R17 radial size, which sets it apart from the wider single-rear-wheel Lariat fitments. Tire selection here should stay focused on the dual-rear-wheel setup, proper 17-inch wheel fitment, and the load-oriented requirements that come with this configuration.
The 4x4 Lariat uses a different 18-inch tire size than the 4x2 truck, so the tire choice is tied to both drivetrain and wheel setup. That means the practical next step is confirming the truck is truly the 4x4 single-rear-wheel configuration before selecting a tire.
2012 Ford Trucks F-350 Super Duty Lariat 4x4 (DRW)
The 4x4 DRW version shares the 245/75R17 radial fitment used on the 4x2 DRW truck rather than the wider single-rear-wheel sizes. Choosing a tire for this sub-model means confirming the dual-rear-wheel arrangement first, then matching the correct 17-inch fitment.
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 Ford Trucks F-350 Super Duty Lariat Tires for Sale
Available tire choices for the 2012 Ford Trucks F-350 Super Duty Lariat center on BFGoodrich All-Terrain T/A KO2 radials across the four primary sizes. The main points to compare are the exact fitment size, rim-width range, load capacity, and whether the sidewall treatment is RWL or RBL.
Owners of a 2012 Ford Trucks F-350 Super Duty Lariat usually need to sort out exact tire size by sub-model first. The questions below focus on wheel diameter, DRW versus single-rear-wheel fitment, product selection, and the checks that matter before road use.
Tire Size & Fitment
What tire size fits a 2012 Ford Trucks F-350 Super Duty Lariat?
The 2012 Ford Trucks F-350 Super Duty Lariat uses four possible radial tire sizes: 275/65R20, 275/65R18, 245/75R17, and 275/70R18. The correct one depends on the exact truck configuration, including whether it is a 4x2, 4x4, dual-rear-wheel model, or equipped with the 20 Inch Option.
That means the first job is identifying the specific sub-model and confirming the wheel diameter currently on the truck. A single-rear-wheel truck and a DRW truck do not use the same size, and an 18-inch fitment should not be chosen simply because it looks close to a 17-inch or 20-inch setup.
What size rim does a 2012 Ford Trucks F-350 Super Duty Lariat use?
A 2012 Ford Trucks F-350 Super Duty Lariat can use 17-inch, 18-inch, or 20-inch rims depending on configuration. The 245/75R17 fitment uses a 17-inch rim, both 275/65R18 and 275/70R18 use 18-inch rims, and the 275/65R20 fitment uses a 20-inch rim.
Rim diameter is the first thing to verify before choosing a tire because two sizes may look similar on paper while fitting entirely different wheels. It also helps to check actual wheel width, especially if the truck has aftermarket wheels, since the available products carry different compatible rim-width ranges by size.
Why does the 2012 Ford Trucks F-350 Super Duty Lariat have more than one tire size?
More than one tire size applies because the 2012 Ford Trucks F-350 Super Duty Lariat was offered in different configurations. A 4x2 truck, a 4x4 truck, a DRW model, and a truck with the 20 Inch Option do not all use the same wheel and tire combination.
This is why the tire decision should start with the truck's exact setup instead of the trim name alone. Matching the wrong size can create problems with wheel compatibility and overall fitment, so the safest approach is to confirm sub-model, wheel diameter, and whether the truck is single- or dual-rear-wheel before comparing products.
Choosing the Right Tire
What should I consider when choosing a tire for a 2012 Ford Trucks F-350 Super Duty Lariat?
Start with the correct size for the truck's exact configuration, since this Lariat can use four different radial sizes. After that, compare the wheel diameter, the product's compatible rim-width range, and load capacity, especially if the truck is used for towing, hauling, or heavier-duty work.
The available options here stay within the BFGoodrich All-Terrain T/A KO2 line, so the choice is less about switching tire families and more about matching the correct fitment and specification. Sidewall treatment also varies by size, with RWL and RBL appearances depending on the tire selected.
What sidewall styles are available for 2012 Ford Trucks F-350 Super Duty Lariat tires?
Two sidewall styles appear across the available 2012 Ford Trucks F-350 Super Duty Lariat tires: RWL and RBL. The 275/65R20 option uses an RBL sidewall, while the 275/65R18, 245/75R17, and 275/70R18 options use RWL sidewalls.
That gives appearance-conscious owners a visual difference to consider once the correct size has been confirmed. Sidewall style should come after fitment, not before it, because choosing a preferred look in the wrong size can create a mismatch with the truck's wheel diameter or rear-wheel configuration.
What tire series are available for the 2012 Ford Trucks F-350 Super Duty Lariat?
The available tire series for these 2012 Ford Trucks F-350 Super Duty Lariat fitments is the BFGoodrich All-Terrain T/A KO2. It appears across all four primary sizes, so the main variation comes from the exact fitment size and its related specifications rather than from switching among multiple series.
That simplifies selection once the truck's configuration is known. Instead of sorting through many different product families, the focus becomes choosing the proper size, confirming the wheel it will mount on, and comparing details such as load capacity, rim-width range, and sidewall presentation for the way the truck is actually used.
Restoration & Appearance
Does correct tire fitment matter for a 2012 Ford Trucks F-350 Super Duty Lariat restoration?
Correct tire fitment matters even on a newer heavy-duty truck because wheel diameter and stance are a visible part of how the 2012 Ford Trucks F-350 Super Duty Lariat presents. Using the proper size for the exact sub-model helps preserve the truck's intended proportions, whether it is a 4x2, 4x4, DRW, or 20 Inch Option setup.
Appearance should still be approached through fitment first, not style alone. A truck built with different wheels over time may no longer match its original configuration, so wheel diameter and rear-wheel arrangement deserve a careful check before choosing a tire for restoration-minded presentation.
Which sidewall style suits a period-style 2012 Ford Trucks F-350 Super Duty Lariat?
For a period-style 2012 Ford Trucks F-350 Super Duty Lariat, the sidewall choice comes down to the available RWL or RBL treatment in the correct size. RWL gives a more overt truck-performance look, while RBL presents a more subdued sidewall appearance within the same general all-terrain theme.
The right choice depends on how the truck is being presented and which size actually belongs on that configuration. Sidewall appearance should be treated as a finishing detail after confirming the fitment, since the available treatment changes by tire size rather than by a separate cosmetic option alone.
Fitment, Maintenance & Road Use
Can modifications affect tire fitment on a 2012 Ford Trucks F-350 Super Duty Lariat?
Yes, modifications can affect tire fitment on a 2012 Ford Trucks F-350 Super Duty Lariat. Aftermarket wheels, suspension changes, leveling kits, lift kits, and changes from single-rear-wheel to other wheel setups can alter the clearance and wheel-compatibility picture even when the truck still appears close to stock.
A modified truck should be checked for actual wheel diameter and width before choosing among the original fitment sizes. Clearance at the fenders, steering components, and suspension points also matters, especially on 4x4 trucks and DRW models where the configuration itself already plays a large role in tire selection.
What should I inspect before driving a 2012 Ford Trucks F-350 Super Duty Lariat on new tires?
Before road use, inspect tire pressure, wheel lug torque, valve stems, and the basic condition of the wheels themselves. It also makes sense to look over the truck for alignment-related wear patterns, suspension looseness, and any signs that the new tire size or wheel setup sits too close to body, brake, or steering components.
A heavy-duty pickup places real demands on its tires, so a quick visual check is not enough by itself. Recheck pressure after the first drives, watch for rubbing during full steering lock, and keep an eye on any unusual vibration or pull that could point to a wheel, balance, or fitment issue.
How should tires on a 2012 Ford Trucks F-350 Super Duty Lariat be maintained?
Tires on a 2012 Ford Trucks F-350 Super Duty Lariat should be maintained with regular pressure checks, visual inspections, and rotation practices that suit the truck's configuration. Watch for uneven tread wear, cuts, bulges, cracking, or slow air loss, and pay close attention to any change in the way the truck tracks under load.
Maintenance should also reflect how the truck is used. A work-oriented F-350, a lightly driven personal truck, and a DRW configuration each place different stresses on the tires, so pressure, wear rate, and general condition deserve routine attention rather than occasional checks before a longer trip.
