The 2009 Ford Trucks F-350 Super Duty Lariat sits squarely in the era when heavy-duty pickups had to balance serious work capability with upscale trim and everyday comfort. In Lariat form, the F-350 brought a more refined cabin to a truck platform still expected to tow, haul, and handle demanding use. Tire fitment on this exact model varies by cab, drive configuration, and dual-rear-wheel setup, with radial sizes including 245/75R17, 275/65R18, 275/70R18, and 275/65R20. That makes wheel diameter and sub-model identification the first step, followed by load-minded product selection and sidewall preference. For an F-350 that may still work hard or wear modifications, correct size matching matters as much as appearance.
Which Tire Size Is Right for The 2009 Ford Trucks F-350 Super Duty Lariat
The 2009 Ford Trucks F-350 Super Duty Lariat uses four primary tire sizes, and the right one depends on the exact sub-model and wheel setup. These are all radial fitments, but they span 17-inch, 18-inch, and 20-inch rims, so confirming the truck's cab configuration, drive layout, DRW status, and actual wheel diameter should come before comparing tire choices.
275/65R18 is a metric radial size in which 275 is the nominal section width in millimeters, 65 is the aspect ratio, R identifies radial construction, and 18 is the rim diameter in inches. On the 2009 Ford Trucks F-350 Super Duty Lariat, this size is used on certain single-rear-wheel 18-inch wheel applications. Available examples use BFGoodrich's All-Terrain T/A KO2 series with a raised white letter sidewall, giving the truck a more aggressive all-terrain presentation. This size is worth considering when the truck already has the correct 18-inch wheel and the goal is to keep the intended stance and load-capable radial fitment.
Fit(s): 4x2 Crew Cab (DRW), 4x2 Super Cab (DRW), 4x4 Crew Cab (DRW), and 4x4 Super Cab (DRW)
Construction: Radial|Rim: 17 in
245/75R17 is a metric radial size where 245 is the nominal section width in millimeters, 75 is the aspect ratio, R indicates radial construction, and 17 is the wheel diameter in inches. On this F-350 Super Duty Lariat, it appears on dual-rear-wheel configurations, making it an important size for trucks that need the proper narrower heavy-duty fitment. BFGoodrich All-Terrain T/A KO2 availability adds a raised white letter sidewall and an all-terrain tread character within the correct size. Choosing this size starts with confirming that the truck is a DRW model on 17-inch wheels rather than a single-rear-wheel truck with a different factory tire package.
275/65R20 is a metric radial size with a 275-millimeter nominal section width, a 65-series profile, radial construction, and a 20-inch rim diameter. For the 2009 Ford Trucks F-350 Super Duty Lariat, this size is tied to certain 4x4 Crew Cab applications using the larger 20-inch wheel. The available BFGoodrich All-Terrain T/A KO2 version carries a black raised-letter sidewall, which gives it a slightly different look from the raised white letter options found in some other sizes. This size should be evaluated only after confirming that the truck actually wears the correct 20-inch wheel package, since rim diameter is the key separator here.
275/70R18 is a metric radial size in which 275 is the nominal section width in millimeters, 70 is the aspect ratio, R means radial, and 18 identifies the rim diameter in inches. On the 2009 Ford Trucks F-350 Super Duty Lariat, this size is used on certain 4x4 configurations, including Super Cab applications and some Crew Cab trucks. BFGoodrich All-Terrain T/A KO2 is available here with a raised white letter sidewall, giving buyers a familiar off-road-oriented appearance in a heavy-duty size. It is the right size to evaluate when the truck is a 4x4 on 18-inch wheels and the goal is to match the existing fitment before comparing load and wheel-width requirements.
2009 Ford Trucks F-350 Super Duty Lariat Sub-Model Tires
Sub-model fitment on the 2009 Ford Trucks F-350 Super Duty Lariat is not one-size-fits-all. Cab style, 4x2 versus 4x4, dual-rear-wheel configuration, and wheel diameter all affect which tire size belongs on the truck, so confirming the exact sub-model is the first step before selecting a tire.
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2009 Ford Trucks F-350 Super Duty Lariat 4x2 Crew Cab
The 2009 Ford Trucks F-350 Super Duty Lariat 4x2 Crew Cab uses a 275/65R18 radial fitment. Tire selection here centers on matching the truck's 18-inch wheel setup and then choosing a product that suits how the truck is driven and presented.
2009 Ford Trucks F-350 Super Duty Lariat 4x2 Crew Cab (DRW)
The 2009 Ford Trucks F-350 Super Duty Lariat 4x2 Crew Cab (DRW) uses 245/75R17 radial tires. Because this is a dual-rear-wheel application, keeping the correct size and confirming the existing wheel setup matters more than comparing it to single-rear-wheel fitments.
2009 Ford Trucks F-350 Super Duty Lariat 4x2 Super Cab
The 2009 Ford Trucks F-350 Super Duty Lariat 4x2 Super Cab uses the same 275/65R18 radial size found on some other single-rear-wheel configurations. That keeps the decision focused on proper 18-inch wheel compatibility, load-minded selection, and the kind of tread and sidewall style the truck should carry.
2009 Ford Trucks F-350 Super Duty Lariat 4x2 Super Cab (DRW)
The 2009 Ford Trucks F-350 Super Duty Lariat 4x2 Super Cab (DRW) uses 245/75R17 radial tires. Buyers should treat this as a dedicated dual-rear-wheel fitment and verify wheel diameter and tire size carefully before replacing anything on a truck that may have seen wheel changes over time.
2009 Ford Trucks F-350 Super Duty Lariat 4x4 Crew Cab
The 2009 Ford Trucks F-350 Super Duty Lariat 4x4 Crew Cab can use either 275/65R20 or 275/70R18 radial tires, depending on the wheel package. That makes actual wheel diameter the deciding factor before comparing products, since both sizes are associated with this sub-model.
2009 Ford Trucks F-350 Super Duty Lariat 4x4 Crew Cab (DRW)
The 2009 Ford Trucks F-350 Super Duty Lariat 4x4 Crew Cab (DRW) uses 245/75R17 radial tires. Tire selection should stay focused on the truck's dual-rear-wheel setup and correct 17-inch wheel fitment rather than the wider single-rear-wheel sizes used elsewhere in the range.
2009 Ford Trucks F-350 Super Duty Lariat 4x4 Super Cab
The 2009 Ford Trucks F-350 Super Duty Lariat 4x4 Super Cab uses 275/70R18 radial tires. The practical decision is to confirm the 18-inch wheel setup first, then compare product details such as sidewall treatment, load specification, and intended road or off-road use.
2009 Ford Trucks F-350 Super Duty Lariat 4x4 Super Cab (DRW)
The 2009 Ford Trucks F-350 Super Duty Lariat 4x4 Super Cab (DRW) uses 245/75R17 radial tires. That points buyers toward the narrower 17-inch dual-rear-wheel fitment and away from the larger single-rear-wheel sizes used on other F-350 Lariat configurations.
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-350 Super Duty Lariat Tires for Sale
Available tire choices for the 2009 Ford Trucks F-350 Super Duty Lariat center on BFGoodrich All-Terrain T/A KO2 radials in the correct primary sizes. The product grid lets you compare 17-inch, 18-inch, and 20-inch fitments, raised white letter versus black raised-letter sidewalls, and the rim-width and load details that matter on a heavy-duty truck.
These FAQs focus on the exact tire sizes used on the 2009 Ford Trucks F-350 Super Duty Lariat, how sub-models and wheel diameters affect fitment, and what to check when choosing, inspecting, and driving on replacement tires.
Tire Size & Fitment
What tire size fits a 2009 Ford Trucks F-350 Super Duty Lariat?
The 2009 Ford Trucks F-350 Super Duty Lariat does not use just one tire size across every configuration. Depending on the exact sub-model, the primary radial tire sizes are 275/65R18, 245/75R17, 275/65R20, and 275/70R18. Dual-rear-wheel versions use 245/75R17, while single-rear-wheel trucks can use one of the larger sizes depending on cab and drive configuration.
The practical step is to identify whether the truck is 4x2 or 4x4, Crew Cab or Super Cab, and DRW or not, then confirm the wheel diameter currently on the truck. That matters especially on 4x4 Crew Cab models, where more than one size applies. If the truck has aftermarket wheels, always verify the actual wheel and tire setup before replacing anything.
What size rim does a 2009 Ford Trucks F-350 Super Duty Lariat use?
Rim diameter on the 2009 Ford Trucks F-350 Super Duty Lariat varies by configuration. The truck can use 17-inch, 18-inch, or 20-inch rims, depending on the tire size fitted to that specific sub-model. The 245/75R17 size uses a 17-inch rim, both 275/65R18 and 275/70R18 use 18-inch rims, and 275/65R20 uses a 20-inch rim.
Wheel diameter is one of the most important checks on this truck because tire fitment changes across the model range. Do not choose a replacement tire by appearance alone. Read the tire size on the sidewall, measure the wheel if needed, and confirm whether the truck is a single-rear-wheel or dual-rear-wheel setup before selecting a replacement.
Why does the 2009 Ford Trucks F-350 Super Duty Lariat have more than one tire size?
More than one tire size appears on the 2009 Ford Trucks F-350 Super Duty Lariat because the model range includes different cab styles, 4x2 and 4x4 drivetrains, dual-rear-wheel variants, and more than one wheel package. Those differences change the wheel diameter and the tire size needed to match the truck's intended configuration.
That means the right replacement is tied to the exact truck, not just the year and model name. A 4x4 Crew Cab can differ from a 4x2 Super Cab, and a DRW truck uses a different fitment from a single-rear-wheel truck. Matching the truck's current wheel setup and configuration prevents avoidable clearance, load, and compatibility problems.
Choosing the Right Tire
What should I consider when choosing a 2009 Ford Trucks F-350 Super Duty Lariat tire?
Start with the correct primary size for the exact truck configuration, because this F-350 Lariat can use 245/75R17, 275/65R18, 275/70R18, or 275/65R20. After size, focus on radial construction, wheel diameter, rim-width compatibility, and load capacity at the stated inflation pressure. Those factors matter more on a heavy-duty pickup than simply choosing a tire that looks similar.
The truck's actual use should guide the final decision. A work-oriented F-350, a tow vehicle, and a truck that sees occasional off-pavement driving may all place different priorities on tread design and sidewall presentation. It also helps to confirm whether the truck still wears its original wheel type or has been changed to aftermarket wheels over time.
What sidewall styles are available for 2009 Ford Trucks F-350 Super Duty Lariat tires?
Sidewall style varies by size on the 2009 Ford Trucks F-350 Super Duty Lariat. Raised white letter options appear in 275/65R18, 245/75R17, and 275/70R18, while the available 275/65R20 tire uses a black raised-letter sidewall. Those visual differences can noticeably change how a heavy-duty truck presents, even when the overall tire category is similar.
The right sidewall choice depends first on using the correct size for the truck. Once that is settled, sidewall style becomes an appearance decision tied to whether the truck leans more toward a traditional all-terrain look or a more understated presentation. Buyers replacing one damaged tire should also pay attention to matching the sidewall treatment already on the vehicle.
What brands offer tires for the 2009 Ford Trucks F-350 Super Duty Lariat?
BFGoodrich is the brand available across the primary tire sizes for the 2009 Ford Trucks F-350 Super Duty Lariat, with the All-Terrain T/A KO2 series offered in 245/75R17, 275/65R18, 275/70R18, and 275/65R20. That keeps the buying decision centered less on brand comparison and more on selecting the correct size and wheel fitment for the truck.
Even within one brand and series, the details still matter. Rim-width range, load specification, sidewall style, and the exact wheel diameter all vary by size. On a truck like an F-350, those fitment details should be checked before appearance preferences, especially if the vehicle tows, hauls, or has had any wheel or suspension changes.
Restoration & Appearance
Which tire should I choose for a period-style 2009 Ford Trucks F-350 Super Duty Lariat?
A period-style choice for a 2009 Ford Trucks F-350 Super Duty Lariat starts with the exact tire size that belongs on the truck's original configuration, whether that is 245/75R17, 275/65R18, 275/70R18, or 275/65R20. Because this is a modern heavy-duty pickup, the proper visual starting point is usually a correctly sized radial tire rather than a change in construction.
Appearance then comes from the wheel package and sidewall treatment that best suit the truck. Raised white letter and black raised-letter options can create different visual results without changing the need for correct fitment. If originality is important, compare the truck's current setup with factory literature, window-sticker information, or marque-specific reference material before making a final choice.
Does correct tire fitment matter for a 2009 Ford Trucks F-350 Super Duty Lariat restoration?
Correct tire fitment matters on a 2009 Ford Trucks F-350 Super Duty Lariat because the truck's stance, load-carrying ability, and overall presentation all depend on using the right size on the right wheel diameter. With several sizes used across the model line, an incorrect replacement can make the truck look off and may also complicate normal heavy-duty use.
That is especially important on restored or carefully preserved trucks where the goal is to keep the vehicle visually coherent and mechanically appropriate. A DRW truck should retain its proper tire format, and a 20-inch wheel package should not be treated like an 18-inch setup. Confirming the exact sub-model and wheel package prevents guesswork during a restoration-minded tire change.
Fitment, Maintenance & Road Use
Can modifications affect tire fitment on a 2009 Ford Trucks F-350 Super Duty Lariat?
Yes, modifications can affect tire fitment on a 2009 Ford Trucks F-350 Super Duty Lariat. Aftermarket wheels, changes in wheel width or offset, suspension lifts, leveling kits, lowering changes, and body alterations can all influence how a 245/75R17, 275/65R18, 275/70R18, or 275/65R20 tire sits in the wheel opening and how it clears during steering or suspension travel.
That is why the truck's current setup should be checked before buying replacement tires, especially if it is not known whether the wheels are original. Measure the actual wheel diameter and width, inspect inner and outer clearances, and make sure the tire selected still suits how the truck is used. Heavy-duty trucks leave less room for casual fitment guessing.
What should I inspect before driving a 2009 Ford Trucks F-350 Super Duty Lariat on new tires?
Before driving a 2009 Ford Trucks F-350 Super Duty Lariat on new tires, inspect inflation pressure, lug hardware torque, valve stems, tread and sidewall condition, and the way each tire sits on the wheel. It also helps to verify that the new tires match the correct size and wheel diameter for the truck's exact configuration, especially on models with multiple possible fitments.
A short initial drive should be followed by another look at clearance, steering behavior, and any signs of rubbing. On a dual-rear-wheel truck, pay close attention to the correct size and matching setup across the rear axle. If the truck is used for towing or hauling, recheck pressure and general tire condition before putting it back into regular heavy-duty service.
How should tires on a 2009 Ford Trucks F-350 Super Duty Lariat be maintained?
Tires on a 2009 Ford Trucks F-350 Super Duty Lariat should be maintained with regular pressure checks, visual inspection for cracking, cuts, punctures, bulges, and uneven tread wear, and periodic review of overall condition if the truck sits for long stretches. Heavy-duty tires also deserve close attention to load capacity and inflation because the truck may be used for towing or hauling.
Storage and age matter even on a truck that is driven infrequently. Keep the tires away from prolonged sun, standing moisture, and ozone sources when possible, and inspect them before longer trips rather than assuming low mileage means low risk. A truck that still looks good cosmetically can still have aging tires that need closer evaluation before road use.