The 2004 Infiniti Trucks FX35 brought sport-sedan attitude into the luxury crossover world, with sharp styling and a chassis tuned more like a performance vehicle than a traditional SUV. Buyers are usually balancing that sporty character with the practical realities of wheel and tire fitment. For this exact FX35, primary fitment centers on two radial sizes, 265/50R20 and 265/60R18, tied to different 20-inch and 18-inch wheel setups. That means the real decision starts with confirming which wheels are on the vehicle, then choosing the tire size that matches them. For everyday road use, appearance, and proper clearance, wheel diameter should be verified before anything else.
Which Tire Size Is Right for The 2004 Infiniti Trucks FX35
The 2004 Infiniti Trucks FX35 uses two primary tire sizes, and the first step is confirming whether the vehicle is running 18-inch or 20-inch wheels. Both sizes are radial constructions, but they are not interchangeable across different rim diameters, so wheel size matters before comparing tire options or evaluating replacement choices.
265/50R20 is a modern metric radial size in which 265 identifies the section width in millimeters, 50 is the aspect ratio, R designates radial construction, and 20 is the rim diameter in inches. On the 2004 Infiniti Trucks FX35, this size suits vehicles equipped with 20-inch wheels and supports the model's more aggressive wheel-and-tire presentation. The lower-profile sidewall gives this fitment a distinctly modern look compared with the 18-inch alternative. Selecting this size starts with verifying the actual wheel diameter on the vehicle, especially if wheels have been changed since new.
265/60R18 is a modern metric radial size where 265 is the tire width in millimeters, 60 is the aspect ratio, R indicates radial construction, and 18 is the wheel diameter in inches. For the 2004 Infiniti Trucks FX35, this size applies to vehicles using 18-inch wheels rather than the 20-inch setup. Its sizing keeps the same general width family while pairing it with a taller sidewall than the 20-inch fitment. Choosing this size depends on confirming the wheel diameter already on the vehicle and checking that any replacement matches the existing wheel setup.
Tire fitment is straightforward across the covered 2004 Infiniti Trucks FX35 sub-models because both AWD and RWD versions use the same two size options. The important check is not drivetrain, but whether the vehicle has 18-inch or 20-inch wheels before selecting a tire.
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2004 Infiniti Trucks FX35 (AWD)
The 2004 Infiniti Trucks FX35 (AWD) uses the same two radial size options found across this model range, with fitment depending on whether it carries 18-inch or 20-inch wheels. Tire selection comes down to confirming the actual wheel diameter and then choosing a replacement that matches the existing setup and intended road use.
The 2004 Infiniti Trucks FX35 (RWD) follows the same tire-fitment pattern as the AWD version, with both 265/50R20 and 265/60R18 used on different wheel packages. The key step is checking which wheels are on the vehicle now, since the correct tire size follows the rim diameter rather than the drivetrain.
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.
Frequently Asked Questions
Owners of a 2004 Infiniti Trucks FX35 usually need clear answers on tire size, wheel diameter, sub-model fitment, and how modifications can affect clearance. These FAQs focus on the exact fitment questions that matter before replacement tires go on the vehicle.
Tire Size & Fitment
What tire size fits a 2004 Infiniti Trucks FX35?
The 2004 Infiniti Trucks FX35 uses two primary tire sizes: 265/50R20 and 265/60R18. Both are radial sizes, and both apply across FX35 configurations depending on which wheel package is on the vehicle.
The important detail is that these sizes use different rim diameters, so the right choice starts with confirming whether the vehicle has 20-inch or 18-inch wheels. AWD and RWD do not change that basic fitment pattern, but aftermarket wheels or previous tire changes make it worth checking the actual wheel setup before replacing anything.
What size rim does a 2004 Infiniti Trucks FX35 use?
A 2004 Infiniti Trucks FX35 uses either an 18-inch rim or a 20-inch rim, depending on which tire size is on the vehicle. The 265/60R18 size matches an 18-inch wheel, while the 265/50R20 size matches a 20-inch wheel.
That makes wheel diameter the first thing to verify before shopping for tires. The numbers at the end of the tire size tell you the rim diameter, and those values are not interchangeable. Checking the wheel itself, the existing tire sidewall, and any prior modifications helps prevent ordering a tire for the wrong wheel size.
Do all 2004 Infiniti Trucks FX35 sub-models use the same tire size?
The AWD and RWD versions of the 2004 Infiniti Trucks FX35 share the same two tire size options: 265/50R20 and 265/60R18. In other words, drivetrain does not create a separate tire-size pattern for this model.
What changes the fitment is the wheel diameter on the vehicle, not the sub-model name alone. That means an FX35 owner should verify the current wheel-and-tire combination rather than assuming every AWD or every RWD vehicle has the same setup. This is especially important if the vehicle has had replacement wheels installed at some point.
Choosing the Right Tire
What should I consider when choosing a tire for a 2004 Infiniti Trucks FX35?
Start with the correct size and wheel diameter, since the 2004 Infiniti Trucks FX35 uses either 265/50R20 or 265/60R18. Both are radial sizes, so the main fitment decision is matching the replacement tire to the existing 20-inch or 18-inch wheel setup.
After that, think about how the vehicle is used and whether the current setup is original to the vehicle or part of a later wheel change. A buyer should compare overall tire dimensions within the correct size family, inspect wheel condition, and make sure the replacement will maintain proper clearance at full steering lock and normal suspension travel.
How do I choose between the available 2004 Infiniti Trucks FX35 tire sizes?
You do not choose between 265/50R20 and 265/60R18 by preference alone, because each size belongs to a different wheel diameter. The correct size is determined by whether the 2004 Infiniti Trucks FX35 is equipped with 20-inch wheels or 18-inch wheels.
Once the wheel diameter is confirmed, the decision becomes much simpler. The 20-inch setup uses the lower-profile 265/50R20, while the 18-inch setup uses 265/60R18 with a taller sidewall. If the vehicle has been modified, verify wheel measurements carefully rather than relying only on model or trim assumptions before selecting the replacement tire.
Why does the 2004 Infiniti Trucks FX35 have more than one tire size?
The 2004 Infiniti Trucks FX35 has more than one tire size because it was fitted with different wheel diameters. That created two primary fitments: 265/60R18 for 18-inch wheels and 265/50R20 for 20-inch wheels.
This does not mean the two sizes are alternatives for the same wheel. Each size is built around its own rim diameter, so the real task is identifying the wheel currently on the vehicle. Looking at the sidewall, measuring the wheel, and checking for aftermarket changes will usually settle the question before any replacement decision is made.
Restoration & Appearance
Does correct tire fitment matter for a 2004 Infiniti Trucks FX35 restoration?
Correct tire fitment matters because the 2004 Infiniti Trucks FX35 uses two different wheel-and-tire combinations, and the right size depends on the wheel diameter actually on the vehicle. Using the wrong tire size for the rim changes more than appearance and can create mounting and clearance problems.
For a restoration-minded owner, the first goal is matching the tire to the wheel setup the vehicle is intended to carry. If originality is important, compare the current wheel package to period vehicle documentation or marque-specific references. That approach helps preserve the FX35's intended stance and avoids mixing an 18-inch tire size with a 20-inch wheel, or the reverse.
How does tire size affect the appearance of a restored 2004 Infiniti Trucks FX35?
Tire size has a visible effect because the 2004 Infiniti Trucks FX35 can wear either 265/60R18 or 265/50R20, and those sizes pair with different wheel diameters and sidewall proportions. Even though both are similar in overall height, the visual balance between wheel and sidewall is noticeably different.
A restoration-oriented choice usually starts with deciding which wheel package belongs on the vehicle being preserved. The 20-inch setup presents a more aggressive, lower-profile look, while the 18-inch setup shows more sidewall. Before settling on appearance alone, confirm the wheels on the vehicle and make sure the chosen tire size matches them correctly.
Fitment, Maintenance & Road Use
Can modifications affect tire fitment on a 2004 Infiniti Trucks FX35?
Yes, modifications can affect tire fitment on a 2004 Infiniti Trucks FX35, even when the tire size itself is one of the correct primary sizes. Changes to wheel width, offset, suspension height, or body clearance can alter how 265/50R20 or 265/60R18 sits in the wheel opening.
A vehicle with aftermarket wheels or suspension changes should be checked at full steering lock and through normal suspension movement before finalizing a replacement. Clearance around the inner fender, strut area, and outer bodywork matters just as much as the size stamped on the sidewall, especially on a performance-oriented crossover like the FX35.
What should I inspect before driving a 2004 Infiniti Trucks FX35 on new tires?
Before driving, inspect the tire size, mounting direction if applicable, air pressure, and the condition of the wheels themselves. It also makes sense to look over the valve stems, check for proper bead seating, and confirm that the new tires match the wheel diameter the 2004 Infiniti Trucks FX35 is actually using.
A short follow-up inspection after the first miles is worthwhile, especially on a vehicle that may have had wheel changes in the past. Recheck pressure, look for rubbing marks, and pay attention to steering feel and clearance during parking-lot maneuvers. Those simple checks can catch fitment issues before they turn into tire wear or handling problems.
How often should tires on a 2004 Infiniti Trucks FX35 be inspected?
Tires on a 2004 Infiniti Trucks FX35 should be inspected regularly, not just when replacement time arrives. A routine visual check for tread wear, cracking, cuts, bulges, and air loss helps catch problems early whether the vehicle is driven often or spends long periods parked.
Seasonal checks are especially useful on a vehicle that may see mixed use, storage, or weekend-only driving. It is also smart to inspect tires before a longer trip and anytime the ride or steering feel changes. Keeping an eye on condition, pressure, and clearance helps protect both the tire investment and the FX35's road manners.
