The 2009 Ford Trucks F-250 Super Duty Lariat sits in the heavy-duty pickup era when comfort, towing capability, and serious work-truck hardware were increasingly blended into higher-trim models. Buyers looking at this truck today often want to preserve that balance of road manners, stance, and utility rather than simply bolt on any tire that matches the wheel. This exact Lariat fitment uses radial tires, with four applicable sizes depending on whether the truck is a 4x2 or 4x4 and which wheel diameter is on the vehicle. Available choices center on BFGoodrich All-Terrain T/A KO2 offerings with raised white letter or black sidewall styling. The key step is confirming the truck's exact sub-model and wheel size before choosing by load capacity, appearance, and intended use.
Which Tire Size Is Right for The 2009 Ford Trucks F-250 Super Duty Lariat
The 2009 Ford Trucks F-250 Super Duty Lariat uses four primary tire sizes, and the right one depends on the truck's exact sub-model and wheel diameter. Both 4x2 and 4x4 versions can use different sizes, and this page includes 17-inch, 18-inch, and 20-inch fitments. Before comparing tires, confirm whether the truck is a 4x2 or 4x4 and verify the actual wheel diameter currently on the vehicle, especially if it has been changed over the years.
265/70R17 is a modern metric radial size in which 265 identifies the nominal section width in millimeters, 70 is the aspect ratio, R marks radial construction, and 17 is the rim diameter in inches. On this F-250 Super Duty Lariat, it is one of the core heavy-duty radial fitments and appears on both 4x2 and 4x4 versions. Available options in this size come from BFGoodrich in the All-Terrain T/A KO2 series with raised white letter styling and differing load capacities. This size is a practical choice when the truck is equipped with 17-inch wheels and the goal is to stay with the proper wheel diameter and intended fitment range.
275/65R18 is a metric radial size that uses a 275-millimeter nominal section width, a 65-series profile, radial construction, and an 18-inch rim diameter. For this 2009 F-250 Super Duty Lariat, it is tied to specific configurations rather than every truck in the model line, so it should be matched carefully to the actual sub-model and wheel setup. BFGoodrich offers this size in the All-Terrain T/A KO2 series with raised white letter sidewall styling. It is the right size to evaluate when the truck has 18-inch wheels and you want to preserve the intended diameter and fitment approach for that configuration.
275/65R20 follows the same modern metric radial format, with 275 as the nominal width in millimeters, 65 as the aspect ratio, R for radial construction, and 20 as the wheel diameter. On the 2009 Ford Trucks F-250 Super Duty Lariat, this size applies to certain 4x4 trucks and brings the largest rim diameter used within this fitment group. The available tire in this size is a BFGoodrich All-Terrain T/A KO2 with black sidewall styling rather than raised white letters. It deserves a closer look when the truck is already running 20-inch wheels and the goal is to keep the existing wheel package aligned with the correct tire diameter class.
275/70R18 is a metric radial tire size with a 275-millimeter nominal section width, a 70-series profile, radial construction, and an 18-inch rim diameter. Within this F-250 Super Duty Lariat fitment range, it serves a different role than 275/65R18 because the profile is taller even though both use 18-inch wheels. BFGoodrich offers it in the All-Terrain T/A KO2 series with raised white letter styling, giving buyers a traditional off-road tire presentation. This size should be considered only after confirming the truck's exact 4x4 configuration and current wheel setup, since sharing an 18-inch rim does not make all 18-inch sizes interchangeable.
2009 Ford Trucks F-250 Super Duty Lariat Sub-Model Tires
Sub-model fitment matters on the 2009 Ford Trucks F-250 Super Duty Lariat because the 4x2 and 4x4 versions do not share the same complete tire-size range. The first step is identifying the truck correctly, then confirming the wheel diameter before narrowing the tire choice.
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2009 Ford Trucks F-250 Super Duty Lariat 4x2
The 2009 Ford Trucks F-250 Super Duty Lariat 4x2 uses radial tire fitments in 265/70R17 and 275/65R18. That means tire selection starts with confirming whether the truck is on 17-inch or 18-inch wheels, then comparing the available tire's load capacity and sidewall presentation within the correct size.
The 2009 Ford Trucks F-250 Super Duty Lariat 4x4 has the widest fitment spread, using 265/70R17, 275/70R18, or 275/65R20 radial tires depending on the wheel package. Choosing correctly requires matching the tire to the truck's actual wheel diameter first, then checking that the current setup has not been altered with aftermarket wheels or suspension changes.
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 2009 Ford Trucks F-250 Super Duty Lariat Tires for Sale
Available tires for the 2009 Ford Trucks F-250 Super Duty Lariat center on BFGoodrich All-Terrain T/A KO2 radials in the correct 17-inch, 18-inch, and 20-inch sizes. Comparison points include raised white letter versus black sidewall styling, rim-width range, weight, and load capacity within each size.
These FAQs focus on the exact tire sizes used on the 2009 Ford Trucks F-250 Super Duty Lariat, how 4x2 and 4x4 fitment differs, what the size codes mean, and what to inspect before putting a heavy-duty truck back on the road.
Tire Size & Fitment
What tire size fits a 2009 Ford Trucks F-250 Super Duty Lariat?
The 2009 Ford Trucks F-250 Super Duty Lariat uses four radial tire sizes: 265/70R17, 275/65R18, 275/65R20, and 275/70R18. The correct size depends on the exact sub-model and wheel package, with 4x2 trucks using 265/70R17 or 275/65R18 and 4x4 trucks using 265/70R17, 275/70R18, or 275/65R20.
The practical decision starts with wheel diameter, since this truck uses 17-inch, 18-inch, and 20-inch rim fitments. A quick check of the current wheels is important, especially on older trucks that may have seen wheel or suspension changes, because the right tire size must match both the truck's configuration and the wheel actually installed.
What size rim does a 2009 Ford Trucks F-250 Super Duty Lariat use?
A 2009 Ford Trucks F-250 Super Duty Lariat can use 17-inch, 18-inch, or 20-inch rims depending on the tire size and truck configuration. The applicable tire sizes are 265/70R17 on 17-inch rims, 275/65R18 and 275/70R18 on 18-inch rims, and 275/65R20 on 20-inch rims.
That makes rim confirmation more important than simply matching the truck by year and model name. Two tires may look close in width, but a 17-inch, 18-inch, and 20-inch setup each require their own matching tire diameter at the bead seat, so always verify the wheel before comparing tread style, load capacity, or sidewall treatment.
Why does the 2009 Ford Trucks F-250 Super Duty Lariat have more than one tire size?
More than one tire size appears on the 2009 Ford Trucks F-250 Super Duty Lariat because fitment varies by sub-model and wheel package. The 4x2 and 4x4 versions do not use the same complete size range, and the truck was equipped with multiple rim diameters, which changes the correct tire size even within the same trim level.
That means the right choice is not based on trim name alone. Confirm whether the truck is a 4x2 or 4x4, then look at the actual wheel diameter and tire size already on the vehicle. Any truck that has been lifted, leveled, or fitted with aftermarket wheels deserves an extra clearance and fitment check before replacement.
Choosing the Right Tire
What should I consider when choosing a tire for a 2009 Ford Trucks F-250 Super Duty Lariat?
Start with the correct primary size for the truck's exact setup, since this F-250 Super Duty Lariat uses multiple radial sizes across 17-inch, 18-inch, and 20-inch wheels. After size is confirmed, compare construction details that matter for a heavy-duty pickup, including rim-width range, load capacity, tire weight, and sidewall treatment.
A truck used for towing, hauling, or mixed pavement-and-dirt driving may call for different priorities than one used mainly for occasional road use. It also helps to confirm whether appearance matters, since the available options include raised white letter and black sidewall presentations, and both change the truck's visual character even within the correct size.
What sidewall styles are available for 2009 Ford Trucks F-250 Super Duty Lariat tires?
The available sidewall styles for this 2009 Ford Trucks F-250 Super Duty Lariat include RWL and RBL. Raised white letter styling appears on the 265/70R17, 275/65R18, and 275/70R18 options, while the 275/65R20 option uses a black sidewall presentation.
That difference matters mostly for appearance, not basic size fitment. Raised white letters give the truck a more traditional all-terrain look, while a black sidewall keeps the presentation cleaner and more understated. Once the correct tire size is confirmed, sidewall style becomes one of the easiest ways to match the truck's visual tone to its intended use.
What brands offer tires for the 2009 Ford Trucks F-250 Super Duty Lariat?
BFGoodrich is the available brand across the applicable tire sizes for the 2009 Ford Trucks F-250 Super Duty Lariat. The offerings are in the All-Terrain T/A KO2 series, covering the 17-inch, 18-inch, and 20-inch fitments used by this truck.
Since the brand and series remain consistent, the comparison shifts to the details within each size. Load capacity, tire weight, sidewall style, and approved rim-width range are the meaningful differences to review, along with making sure the selected tire matches the truck's sub-model and current wheel diameter before installation.
Restoration & Appearance
Which tire should I choose for a period-style 2009 Ford Trucks F-250 Super Duty Lariat?
A period-style choice for a 2009 Ford Trucks F-250 Super Duty Lariat starts with keeping the truck in the correct original size family for its actual wheel package. On this model, that means selecting from 265/70R17, 275/65R18, 275/70R18, or 275/65R20 rather than jumping to a different diameter that changes the truck's visual stance.
Sidewall presentation also affects the final look. Raised white letter tires suit a more traditional off-road and heavy-duty appearance, while a black sidewall gives the truck a cleaner late-model presentation. If exact as-delivered appearance matters, check vehicle-specific sales literature, window sticker records, or marque references before settling on a sidewall style.
Does correct tire fitment matter for a 2009 Ford Trucks F-250 Super Duty Lariat restoration?
Correct tire fitment matters on a 2009 Ford Trucks F-250 Super Duty Lariat because wheel diameter, sidewall profile, and overall stance are a visible part of how the truck presents. Using the proper size family for the truck's 4x2 or 4x4 configuration helps maintain the intended relationship between the tire, wheel opening, and wheel design.
It also matters mechanically, especially on a heavy-duty pickup. A mismatched size can complicate clearance, change the look of the truck, or move the build away from its original wheel package. Even on a later truck like this one, restoration-minded buyers usually benefit from confirming the wheel size first and avoiding guesswork based on appearance alone.
Fitment, Maintenance & Road Use
Can modifications affect tire fitment on a 2009 Ford Trucks F-250 Super Duty Lariat?
Yes, modifications can affect tire fitment on a 2009 Ford Trucks F-250 Super Duty Lariat even when the replacement tire is one of the proper original size options. Aftermarket wheels, changed wheel width, altered offset, lift kits, leveling kits, and suspension changes can all influence how a 17-inch, 18-inch, or 20-inch tire sits in the wheel opening.
That is why the truck's current setup matters as much as the catalog size. A tire that matches the correct diameter still needs adequate clearance during steering and suspension travel, and a different wheel width can change how the tire mounts. Checking the full wheel-and-suspension combination helps avoid rubbing or stance issues.
What should I inspect before driving a 2009 Ford Trucks F-250 Super Duty Lariat on new tires?
Before road use, inspect air pressure, lug torque, valve stems, tread seating, and visible sidewall condition on the new tires. It is also smart to verify that the tire size on the truck matches the wheel diameter and that the chosen tire's load capacity is appropriate for how the F-250 Super Duty Lariat will actually be used.
A short local drive followed by a recheck is a sensible next step. Listen for rubbing at full steering lock, look for any contact with suspension or fender areas, and confirm that the truck tracks normally. On a heavy-duty pickup, catching a clearance or pressure issue early is much easier than discovering it under load.
How should tires on a 2009 Ford Trucks F-250 Super Duty Lariat be maintained?
Tires on a 2009 Ford Trucks F-250 Super Duty Lariat should be kept at the proper inflation for the truck's actual use, inspected regularly for uneven wear, cuts, bulges, cracking, and air loss, and checked closely if the truck spends long periods parked. Heavy-duty pickups also benefit from routine attention to alignment and suspension condition.
Storage habits matter too, especially on a truck that sees seasonal or occasional use. Keeping the vehicle away from prolonged sun exposure and watching for age-related deterioration can help preserve the tire over time. Any sign of abnormal wear or repeated pressure loss is a reason to inspect the wheel, valve stem, and front-end setup.
