In 2009, Infiniti Trucks blended car-like luxury with crossover and SUV versatility, offering a lineup that ranged from the compact EX35 to the full-size QX56. This was a year when Infiniti leaned into larger wheels, lower-profile fitments, and a more performance-oriented look on much of its truck range. Across four models, six tire sizes were used, and each size is tied to a specific model rather than shared across the full lineup. For a 2009 Infiniti Trucks vehicle, the first step is identifying the exact model and wheel diameter on your vehicle, since that determines which metric radial size belongs on it.
Which Tire Size Is Right for Your 2009 Infiniti Trucks
Six tire sizes are used across 2009 Infiniti Trucks vehicles, and they vary by model rather than being shared across the entire range. Because these sizes span 17-inch through 21-inch rim diameters, the real decision starts with confirming your exact model and wheel size before comparing tire choices. Understanding that distinction first saves time and helps you narrow in on the right match.
Year(s): 2009|Fit(s): EX35|Construction: Radial|Rim: 17 in
The 225/60R17 is a metric radial tire with a 225-millimeter section width, a 60-series aspect ratio, and a 17-inch rim diameter. This size is available from Travelstar with a narrow whitewall sidewall style, and the current offering carries a T speed rating with a 118 mph ceiling. Because this size is specific to the EX35 rather than universal across 2009 Infiniti Trucks, it suits owners who want to stay with the 17-inch wheel fitment used on that model.
Year(s): 2009|Fit(s): EX35|Construction: Radial|Rim: 18-in rim
The 225/55R18 is a metric radial tire with a 225-millimeter section width, a 55-series aspect ratio, and an 18-inch rim diameter. It is an EX35-specific size, and product selection should be matched to that model's 18-inch wheel package. For an EX35 owner, this size is the right direction when the vehicle is equipped with the larger original wheel diameter rather than the 17-inch setup.
Year(s): 2009|Fit(s): FX35|Construction: Radial|Rim: 20-in rim
The 265/50R20 is a metric radial tire with a 265-millimeter section width, a 50-series aspect ratio, and a 20-inch rim diameter. This size belongs specifically to the FX35 and represents one of that model's larger wheel fitments. It is the correct path for FX35 owners confirming a 20-inch wheel package before moving on to product selection.
Year(s): 2009|Fit(s): FX35|Construction: Radial|Rim: 18-in rim
The 265/60R18 is a metric radial tire with a 265-millimeter section width, a 60-series aspect ratio, and an 18-inch rim diameter. It is used only on the FX35, so it should not be treated as interchangeable across the rest of the 2009 Infiniti Trucks range. This size makes sense for FX35 owners who need to match the 18-inch wheel configuration on their vehicle.
Year(s): 2009|Fit(s): FX50|Construction: Radial|Rim: 21-in rim
The 265/45R21 is a metric radial tire with a 265-millimeter section width, a 45-series aspect ratio, and a 21-inch rim diameter. This is a model-specific size for the FX50 and reflects that vehicle's more aggressive large-wheel fitment. For FX50 owners, confirming the 21-inch wheel is essential before choosing a tire in this size.
Year(s): 2009|Fit(s): QX56|Construction: Radial|Rim: 20-in rim
The 275/60R20 is a metric radial tire with a 275-millimeter section width, a 60-series aspect ratio, and a 20-inch rim diameter. It is specific to the QX56 rather than shared with the crossover models in the 2009 Infiniti Trucks lineup. QX56 owners should focus on this size when matching the full-size SUV's 20-inch wheel setup.
Four models are covered for 2009 Infiniti Trucks: EX35, FX35, FX50, and QX56. Tire size varies by model, and in some cases by wheel package within the same model, so year and make alone are not enough to choose the correct size. Select your model below to narrow the fitment history and tire options to the vehicle you actually have.
2009 Infiniti Trucks EX35
The EX35 was Infiniti's compact luxury crossover, combining a lower, more car-like driving feel with hatchback utility and upscale trim. Its tires mount on either 17-inch or 18-inch wheels, so EX35 owners should confirm which wheel package is on the vehicle before choosing a tire.
The FX35 was Infiniti's sporty midsize crossover, known for its performance-oriented shape and more assertive stance than a traditional SUV. Its tires mount on either 18-inch or 20-inch wheels, making wheel diameter the key checkpoint before moving forward with tire selection.
The FX50 sat at the sharper, more powerful end of the FX range and carried the model's dramatic styling into a more premium performance SUV package. Its tire fitment mounts on 21-inch wheels, which makes it the largest wheel diameter used anywhere in the 2009 Infiniti Trucks lineup.
The QX56 was Infiniti's full-size luxury SUV, aimed at buyers who needed more passenger room, towing ability, and traditional SUV presence than the crossover-based EX and FX models. Its tires mount on 20-inch wheels, but the size is unique to the QX56 and should not be confused with the 20-inch fitments used on the FX35.
One product is available across six tire sizes for 2009 Infiniti Trucks vehicles. The 225/60R17 has one Travelstar radial with a narrow whitewall, so confirm your exact size choice and wheel diameter before selecting a tire.
These answers focus on the model-by-model tire differences across 2009 Infiniti Trucks, how modern metric radial sizes decode, and what to check for fitment, storage, and road use on luxury crossovers and SUVs of this era.
Size Basics & Fitment
What tire sizes fit 2009 Infiniti Trucks vehicles?
2009 Infiniti Trucks vehicles use six different tire sizes across four models. The EX35 uses 225/60R17 or 225/55R18, the FX35 uses 265/60R18 or 265/50R20, the FX50 uses 265/45R21, and the QX56 uses 275/60R20. These are all radial metric sizes, and they mount on different rim diameters depending on model and wheel package.
That means the correct starting point is always the exact model, followed by the wheel diameter currently on the vehicle. Even when two models share a 20-inch rim diameter, the tire size itself can still be different, so it is worth checking the sidewall on the existing tire or the factory door-jamb placard before making a final choice.
What does 225/60R17 mean on a 2009 Infiniti Trucks tire?
On a 2009 Infiniti Trucks tire, 225/60R17 means the tire is 225 millimeters wide, has a 60-series aspect ratio, uses radial construction, and fits a 17-inch wheel. In this year and make, that size belongs to the EX35. A currently available version in this size carries a 99T marking, with the T speed rating corresponding to a 118 mph ceiling.
That code matters because each part of it affects fitment. Width, profile, and rim diameter work together, so changing one number can alter clearance, ride height, and speedometer behavior. If your EX35 is on 17-inch wheels, this is the size family to verify against the vehicle before comparing sidewall style or brand.
Do all 2009 Infiniti Trucks models use the same tire size?
No, 2009 Infiniti Trucks models do not use the same tire size. The EX35, FX35, FX50, and QX56 each have their own fitment pattern, and the EX35 and FX35 each use two different sizes depending on wheel package. Rim diameters range from 17 inches up to 21 inches, which makes the lineup far more varied than a single-size year-and-make application.
That variation means a buyer should identify the model first and then confirm the actual wheel on the vehicle. It is especially important on the FX35, where both 18-inch and 20-inch setups appear, and on the QX56, whose 20-inch size is different from the FX35's 20-inch size despite sharing the same wheel diameter.
Buying the Right Tire
What sidewall styles are available for 2009 Infiniti Trucks tires?
Sidewall style availability for 2009 Infiniti Trucks depends on the tire size. In the 225/60R17 size used on the EX35, a Travelstar radial is available with a narrow whitewall. That is a styling detail rather than a separate fitment category, and it gives the tire a more distinctive appearance than the all-black sidewalls most buyers expect on a late-2000s luxury crossover.
For a 2009 Infiniti Trucks owner, sidewall style is mainly an appearance decision after size has been confirmed. A narrow whitewall can create a custom or retro-inspired look on an EX35, but owners aiming for a more original late-model luxury SUV appearance will usually want to compare the visual character of the sidewall carefully before settling on a tire.
What brands make tires for 2009 Infiniti Trucks vehicles?
Travelstar currently covers one of the 2009 Infiniti Trucks sizes, specifically the 225/60R17 used on the EX35. That available tire is a radial from the UN106 series and comes in a narrow whitewall configuration. The rest of the 2009 Infiniti Trucks size range spans additional model-specific fitments that should be matched by size before brand becomes the deciding factor.
Brand choice only helps once the exact size is confirmed, because this lineup does not share a universal fitment across all models. An EX35 owner on 17-inch wheels can compare within the 225/60R17 category, while FX35, FX50, and QX56 owners should first verify the vehicle's wheel diameter and original size family before narrowing their search by brand or tread style.
How do I choose the right tire for a 2009 Infiniti Trucks vehicle with more than one factory size?
A 2009 Infiniti Trucks vehicle with more than one factory size should be matched first by model and then by wheel diameter. The EX35 uses either 225/60R17 or 225/55R18, while the FX35 uses either 265/60R18 or 265/50R20. Those pairs are not interchangeable without accounting for the wheel they mount on, because each size is built around a specific rim diameter.
The practical approach is to read the existing tire sidewall and confirm the wheel size on the vehicle rather than choosing by appearance alone. Once that is settled, you can compare brand, sidewall style, and speed rating within the correct size. That prevents common mistakes such as selecting an 18-inch tire for a vehicle that is currently wearing a 17-inch or 20-inch wheel.
Fitting & Setup
What rim width do 2009 Infiniti Trucks tires require?
Rim width information is available for the 225/60R17 size used on the 2009 Infiniti Trucks EX35. That Travelstar radial is built for a 6.5J rim width and a 17-inch rim diameter. The other 2009 Infiniti Trucks sizes still need to be matched carefully to the wheel on the vehicle, but the specific rim-width figure confirmed here applies to the 225/60R17 fitment.
Rim width matters because it affects how the tire sits on the wheel and how accurately the tread profile is supported. If you are working with an EX35 on 17-inch wheels, confirm that the wheel matches the 6.5J specification before moving ahead. On other models, verifying the wheel against the exact tire manufacturer's requirements remains the safest path.
Do 2009 Infiniti Trucks tires require inner tubes?
The available 225/60R17 tire for 2009 Infiniti Trucks is a modern radial without a tube-type marking, which points to a tubeless configuration. That aligns with late-model luxury crossovers and SUVs such as the 2009 Infiniti Trucks range, where tubeless radial construction is the normal setup. Tube fitment is not part of the currently available 225/60R17 offering.
For a buyer, that means the condition of the wheel, valve stem, and bead seat becomes part of the fitment check. If your vehicle still has its original wheels, inspect them for corrosion, damage, or sealing issues before mounting new tires. Tube use should never be assumed on a modern metric radial unless the specific tire and wheel combination calls for it.
Maintenance, Storage & Longevity
How should I store a 2009 Infiniti Trucks vehicle when the tires are fitted?
A 2009 Infiniti Trucks vehicle should be stored on clean, properly inflated tires in a cool, dry space away from direct sunlight, electric motors, battery chargers, and other ozone sources. Ozone and UV exposure age sidewalls faster than many owners realize, even on modern radial tires. If the vehicle will sit for long periods, moving it periodically helps avoid temporary flat-spotting and uneven casing set.
Storage habits matter on late-model luxury crossovers and SUVs because they are often driven seasonally or only on weekends. Keep the tires off wet ground when possible, avoid petroleum-based cleaners, and inspect the sidewalls after storage before returning the vehicle to regular use. Long stationary periods are easier on the tires when inflation is maintained and weight is not left in one spot for months.
How long do tires on a 2009 Infiniti Trucks vehicle typically last?
Tires on a 2009 Infiniti Trucks vehicle are usually judged more by age than by mileage, especially when the vehicle is used as a second or collector-owned SUV. A good rule is to begin close inspection at around five to seven years and to treat roughly ten years as the point where replacement deserves serious consideration, regardless of remaining tread. The DOT date code on the sidewall gives the tire's manufacturing age.
That age-based approach is important because a tire can look usable while the rubber has already hardened or begun to crack internally. Owners of low-mileage EX, FX, and QX models often encounter this before tread wear becomes an issue. If the tire's age is climbing, pair the date code check with a close look at sidewall cracking, ride quality changes, and how well the tire holds pressure.
How often should tires on a 2009 Infiniti Trucks vehicle be inspected?
Tires on a 2009 Infiniti Trucks vehicle should be inspected before every drive and again before any longer highway outing. Check inflation, visible sidewall cracking, bulges, tread wear, punctures, and any signs of impact damage from curbs or potholes. On luxury crossovers and SUVs with larger wheel packages, low-profile tires can hide inner-sidewall damage that is easy to miss without a careful look.
Routine inspection is especially helpful on vehicles that spend part of the year parked. A quick walkaround can catch a slow leak, aging valve stem, or uneven wear pattern before it becomes a road trip problem. If the vehicle feels different at speed, develops vibration, or starts pulling to one side, the tires and alignment should be checked before putting more miles on it.
Safety & Road Use
Are 2009 Infiniti Trucks tires safe for highway driving?
2009 Infiniti Trucks tires can be suitable for highway driving when the tire is the correct size, in good condition, and matched to the vehicle's wheel. The currently available 225/60R17 option for the EX35 carries a T speed rating, which corresponds to a 118 mph ceiling. That is well above normal U.S. highway speeds, although real-world safety depends just as much on tire age, inflation, alignment, brakes, and suspension condition.
On a 2009 Infiniti Trucks vehicle, highway confidence comes from the full package rather than the speed rating alone. A fresh radial in the correct size is only part of the equation if the SUV has worn shocks, neglected bushings, or old brake components. Before longer interstate use, confirm that the tires are sound and that the vehicle itself is equally ready for sustained road speeds.
What inflation pressure should I use for 2009 Infiniti Trucks tires?
Inflation pressure for a 2009 Infiniti Trucks tire should follow the vehicle manufacturer's recommendation for the exact model and size, with the tire's own maximum pressure treated as a separate rating rather than a universal running target. In the available 225/60R17 EX35 application, the tire carries a maximum load of 1,709 pounds at 44 psi. That figure reflects the tire's upper load-pressure relationship, not necessarily the everyday pressure your vehicle should run.
The safest approach is to start with the factory placard or owner's manual for your EX35, FX35, FX50, or QX56 and then confirm the tire's sidewall information. Do not transfer a pressure number from one size to another, especially across this lineup, because wheel diameter, section width, and vehicle weight all vary. Consistent pressure checks matter more than guessing from appearance.
What should I check before taking a 2009 Infiniti Trucks vehicle on a longer drive?
Before taking a 2009 Infiniti Trucks vehicle on a longer drive, inspect each tire for cracking, cuts, bulges, uneven wear, and proper inflation, then check that the spare is usable and aired correctly if one is carried. Pay close attention to valve stems and bead areas, particularly on vehicles that still wear older wheels. Larger-diameter wheel packages also deserve a look for curb damage that could affect sealing or balance.
Tires are only one part of the pre-trip checklist on a 2009 Infiniti Trucks SUV or crossover. Brake condition, fluids, battery health, suspension wear, and alignment all influence how safely the vehicle travels at speed. If the tires pass inspection but the vehicle has been sitting for months, a short local shakedown drive before a longer trip is a smart way to catch problems early.
