The 2007 Infiniti Trucks range blended luxury-brand refinement with SUV utility, spanning the sport-focused FX line and the full-size QX56. That mix matters when you are choosing tires, because 2007 Infiniti Trucks did not use one universal size across the lineup. Three radial sizes appear across three models, with the FX35 overlapping both the FX45’s lower-profile 20-inch fitment and the QX56’s separate 18-inch full-size SUV sizing. The practical first step is to confirm whether you have an FX35, FX45, or QX56, then verify whether your vehicle is riding on its original wheel diameter before narrowing your choice to the correct size.
Which Tire Size Is Right for Your 2007 Infiniti Trucks
Three tire sizes were used across 2007 Infiniti Trucks, and they vary by model rather than carrying across the full range. Because these sizes span both 18-inch and 20-inch wheel diameters, the real decision starts with confirming your model and wheel diameter first, especially on the FX35 where two different fitments appear. Understanding that distinction before choosing a product saves time and helps you match the tire to the correct vehicle setup.
Year(s): 2007|Fit(s): FX35, FX45|Construction: Radial|Rim: 20-in rim
A 265/50R20 is a radial metric size with a 265-millimeter section width, a 50-series aspect ratio, and a 20-inch wheel diameter. This size is specific to the FX35 and FX45 rather than the full 2007 Infiniti Trucks range. It is the right direction for owners who need the sport-oriented 20-inch fitment used on those FX models and should be matched to the actual wheels on the vehicle before moving to product selection.
Year(s): 2007|Fit(s): FX35|Construction: Radial|Rim: 18-in rim
A 265/60R18 is a radial metric size with a 265-millimeter section width, a 60-series aspect ratio, and an 18-inch wheel diameter. This size is specific to the FX35 and does not apply across the rest of the 2007 Infiniti Trucks lineup. It suits FX35 owners whose vehicles retain the 18-inch wheel package, so confirming the wheel diameter is more important here than comparing it to the FX45 or QX56.
Year(s): 2007|Fit(s): QX56|Construction: Radial|Rim: 18-in rim
A 265/70R18 is a radial metric size with a 265-millimeter section width, a 70-series aspect ratio, and an 18-inch wheel diameter. This size is specific to the QX56 and reflects the taller-profile fitment associated with Infiniti’s full-size SUV rather than the FX crossover line. It is the correct starting point for a QX56 owner who wants the proper overall sizing relationship for that model’s heavier-duty, larger-bodied role.
Three models are covered for 2007 Infiniti Trucks. Tire size varies by model, and in the case of the FX35, even the same model can appear with two different wheel diameters, so identifying the exact model matters before choosing a tire. Select your model below for model-specific fitment history and products.
2007 Infiniti Trucks FX35
The 2007 Infiniti Trucks FX35 was Infiniti’s athletic luxury crossover, known for its coupe-like profile and road-focused character compared with a traditional truck-based SUV. FX35 fitments span both 18-inch and 20-inch wheels, so owners should confirm which wheel package is on the vehicle before selecting a tire.
The 2007 Infiniti Trucks FX45 sat at the sharper, more performance-minded end of the FX family, combining V8 power with the same distinctive fastback SUV shape. Its tires mount on 20-inch wheels, which makes it more straightforward to identify than the dual-fitment FX35.
The 2007 Infiniti Trucks QX56 was Infiniti’s full-size luxury SUV, built for passenger capacity, towing, and a more traditional body-on-frame presence than the FX models. Its tires mount on 18-inch wheels, but with a taller profile than the FX35’s 18-inch setup, so the size itself still needs to match the model.
These FAQs cover how 2007 Infiniti Trucks sizing changes between the FX35, FX45, and QX56, what each metric size code means, and what to verify on a modern luxury SUV before replacing tires for regular use or collector-style low-mileage service.
Size Basics & Fitment
What tire sizes fit 2007 Infiniti Trucks vehicles?
Three tire sizes fit the 2007 Infiniti Trucks range: 265/50R20, 265/60R18, and 265/70R18. The 265/50R20 fits the FX35 and FX45, the 265/60R18 fits the FX35, and the 265/70R18 fits the QX56. That means the FX35 is the only model that overlaps two fitment paths, while the FX45 and QX56 each use one model-specific size.
The key takeaway for 2007 Infiniti Trucks is that year and make alone are not enough. You need to identify the model first, then confirm whether the vehicle still has its original wheel diameter, especially if you own an FX35. Once that is settled, you can move to the correct tire size without mixing the sport-oriented FX fitments with the taller-profile QX56 setup.
What does 265/50R20 mean on a 2007 Infiniti Trucks tire?
On a 2007 Infiniti Trucks tire, 265/50R20 is a metric radial size. The 265 is the nominal section width in millimeters, the 50 is the aspect ratio, meaning the sidewall height is 50 percent of the section width, the R identifies radial construction, and the 20 is the wheel diameter in inches. On 2007 Infiniti Trucks vehicles, this size applies to the FX35 and FX45.
That code matters because it tells you this is a lower-profile 20-inch fitment, not an interchangeable alternative to the 18-inch sizes used elsewhere in the lineup. If your 2007 Infiniti Trucks FX35 or FX45 is still on its correct wheels, this size keeps you in the intended dimensional range. If the vehicle has changed hands or received aftermarket wheels, confirm the actual rim diameter before replacing anything.
Do all 2007 Infiniti Trucks models use the same tire size?
No, 2007 Infiniti Trucks models do not all use the same tire size. The FX45 uses 265/50R20, the QX56 uses 265/70R18, and the FX35 can use either 265/50R20 or 265/60R18 depending on wheel package. Even though both the FX35 and QX56 have an 18-inch option in the broader lineup, they do not share the same overall size because the aspect ratio differs significantly.
That variation means a 2007 Infiniti Trucks owner should avoid choosing by brand familiarity or tread pattern first. Model identification comes before everything else, and wheel diameter confirmation comes immediately after. This is especially important on used luxury SUVs, where wheel swaps are common and can blur the difference between an original FX35 setup and a later cosmetic change.
Buying the Right Tire
What brands make tires for 2007 Infiniti Trucks vehicles?
Tire brand information for 2007 Infiniti Trucks is not included here at the year-make level. The important fitment point is that all three sizes used across the FX35, FX45, and QX56 are modern radial metric sizes, so brand selection should follow after you have confirmed the exact size your model requires. That sequence prevents comparing products from the wrong wheel diameter or profile category.
A practical way to narrow the field is to start with your model, then move to the size page or model page that matches your vehicle. A 265/50R20 search for an FX45, for example, is a different exercise from a 265/70R18 search for a QX56, even though both sit under the 2007 Infiniti Trucks umbrella. Getting the size right first keeps your comparison focused and relevant.
What sidewall styles are available for 2007 Infiniti Trucks tires?
The 2007 Infiniti Trucks lineup uses modern radial metric sizes, so sidewall choices generally center on contemporary blackwall styles rather than the wide whitewall or vintage sidewall treatments associated with earlier collector eras. That matches the original character of the FX35, FX45, and QX56, which were all designed as modern luxury SUVs with contemporary wheel and tire proportions.
For a 2007 Infiniti Trucks owner, sidewall appearance is usually a secondary decision after size, load suitability, and intended use. An FX model often looks best with a clean, performance-oriented sidewall that suits its low-profile stance, while a QX56 benefits from a sidewall treatment that complements its full-size SUV proportions. Keep the visual choice consistent with the vehicle’s original design language rather than chasing an older-period look.
How do I choose the right tire for a 2007 Infiniti Trucks FX35 versus a 2007 Infiniti Trucks QX56?
A 2007 Infiniti Trucks FX35 and a 2007 Infiniti Trucks QX56 should be approached differently because they do not share the same tire size or overall tire profile. The FX35 uses either 265/50R20 or 265/60R18 depending on wheel package, while the QX56 uses 265/70R18. All are radial sizes, but the FX fitments are tied to a sport-luxury crossover character and the QX56 fitment reflects a taller full-size SUV profile.
The smart path is to begin with the model, then verify the wheel diameter currently on the vehicle, then compare tires within that exact size. That prevents a common mistake where an 18-inch FX35 owner assumes any 18-inch 2007 Infiniti Trucks tire will work. The QX56’s 18-inch size is a different dimension entirely, so the model name matters just as much as the wheel diameter.
Fitting & Setup
Do 2007 Infiniti Trucks tires require inner tubes?
The 2007 Infiniti Trucks sizes in this range are modern radial metric fitments, and vehicles of this era were built around tubeless passenger and SUV tire practice rather than vintage tube-type construction. The FX35, FX45, and QX56 all fall into a period where tubeless radial operation is the normal expectation for factory-style wheels in good condition.
Even so, wheel condition still matters on a used 2007 Infiniti Trucks vehicle. If the wheels have corrosion, damage, or have been replaced with non-original pieces, inspect the bead seat and valve stem area before mounting new tires. A clean wheel in proper condition supports trouble-free tubeless service, while a compromised wheel can create sealing problems that a new tire alone will not fix.
Can the original 2007 Infiniti Trucks wheels be used with all tire sizes?
No, the original 2007 Infiniti Trucks wheels cannot be treated as universal across all three tire sizes. The 265/50R20 requires a 20-inch wheel, while the 265/60R18 and 265/70R18 require 18-inch wheels. That means the 20-inch FX fitment is not interchangeable with the 18-inch FX35 or QX56 fitments without changing wheels as well.
The important nuance is that sharing an 18-inch diameter does not automatically make two sizes interchangeable either. A 2007 Infiniti Trucks FX35 using 265/60R18 and a 2007 Infiniti Trucks QX56 using 265/70R18 still call for different overall tire dimensions. Confirm both the model and the exact size before assuming an original wheel can accept another size from elsewhere in the lineup.
Maintenance, Storage & Longevity
How should I store a 2007 Infiniti Trucks when the tires are fitted?
A 2007 Infiniti Trucks should be stored clean, dry, and out of direct sunlight, with the tires kept away from electric motors, battery chargers, welders, and other ozone-producing sources that accelerate rubber aging. Inflate the tires to a proper storage pressure for the vehicle’s use case and move the vehicle periodically if it will sit for extended periods. Radial tires generally resist storage flat-spotting better than older bias-ply designs, but long static parking still takes a toll.
For an FX35, FX45, or QX56 that sees seasonal use, simple habits make a big difference. Roll the vehicle occasionally to change the contact patch, keep the storage surface dry, and use stands only if you understand how to support the chassis correctly. Tire covers help in bright garages, and avoiding long-term underinflation is one of the easiest ways to protect sidewalls and casing shape.
How long do tires on a 2007 Infiniti Trucks typically last?
Tires on a 2007 Infiniti Trucks should be evaluated by age as much as by tread depth. A common collector and enthusiast rule is to inspect closely once tires are around five to seven years old and to treat roughly ten years as a serious replacement consideration, even if the tread still looks usable. The DOT date code on the sidewall is the best way to establish actual tire age.
That matters because many 2007 Infiniti Trucks vehicles now live low-mileage lives where tires can age out before they wear out. An FX or QX that appears lightly used may still be riding on old rubber with hardened compound or subtle sidewall cracking. If you are unsure how old the tires are, checking the date code is more meaningful than judging by tread alone.
How often should tires on a 2007 Infiniti Trucks be inspected?
Tires on a 2007 Infiniti Trucks should be inspected before every drive and more carefully before any longer highway trip. Look for sidewall cracking, punctures, bulges, uneven wear, embedded debris, and pressure loss. Because these vehicles use modern radial sizes, tread condition and casing health are usually more telling than outward age alone, but both matter.
Monthly pressure checks are a good baseline, and a hands-on inspection before road trips is even better. On an FX35 or FX45, pay close attention to inner-edge wear if the vehicle has spent years on performance-oriented wheel alignments. On a QX56, also watch for wear patterns that suggest suspension load or alignment issues, since a large SUV places different demands on its tires than a sport crossover.
Safety & Road Use
Are 2007 Infiniti Trucks tires safe for highway driving?
Yes, 2007 Infiniti Trucks tires in the correct size and in sound condition are designed for normal highway use because all three fitments here are modern radial metric sizes rather than antique or bias-ply constructions. The larger safety variables on a 2007 Infiniti Trucks vehicle are usually tire age, inflation, damage, and whether the tire actually matches the wheel and model it is mounted on.
That means highway safety starts with condition and correctness, not just tread pattern. A fresh, properly matched radial on an FX35, FX45, or QX56 is a very different proposition from an aged tire that still has visible tread but has hardened with time. Before any sustained highway use, confirm the size, inspect the sidewalls, and make sure pressures are set appropriately for the vehicle and load.
What inflation pressure should I use for 2007 Infiniti Trucks tires?
A 2007 Infiniti Trucks should be inflated according to the vehicle placard or owner’s manual for the exact model and tire size being used, rather than by borrowing a pressure from another model in the lineup. That matters because the FX35, FX45, and QX56 do not share one universal fitment, and each vehicle’s weight, ride tuning, and intended load can influence the recommended pressure.
Use the door-jamb placard as your first reference when the vehicle remains close to stock. If wheel or tire specifications have changed, confirm the tire manufacturer’s guidance for that exact size and service type instead of guessing. Keeping pressures consistent side to side, checking them cold, and rechecking before travel will do more for tire life and road manners than simply inflating to a generic maximum sidewall number.
What should I check before taking a 2007 Infiniti Trucks on a longer drive?
Before a longer drive in a 2007 Infiniti Trucks, inspect all four tires and the spare for cracking, cuts, bulges, punctures, and uneven wear, then verify cold inflation pressure. Make sure the tire size on the vehicle matches the model and wheel diameter, especially on an FX35 where either 18-inch or 20-inch fitments may be present. Also check valve stems, tread depth, and overall tire age.
Tires are only one part of the pre-trip picture on a vehicle from this era. A sound longer-drive routine also includes brakes, fluid levels, lights, suspension feel, and battery condition, but the tires deserve first attention because they carry every other system’s workload to the road. If anything about the sidewalls or size looks questionable, resolve that before adding highway speed and heat.
