The 2019 Infiniti Trucks QX50 sits in the modern luxury crossover market, blending upscale road manners with the taller stance and everyday versatility buyers expect from a premium utility vehicle. For this model, tire selection is driven first by wheel diameter and trim setup, because the QX50 uses two radial sizes: 235/55R19 and 255/45R20. That means the real choice is not just brand, but whether the vehicle is on its 19-inch or 20-inch wheel package and how that affects sidewall profile and appearance. A careful match keeps the QX50's proportions, ride character, and clearance where they need to be.
Which Tire Size Is Right for The 2019 Infiniti Trucks QX50
The 2019 Infiniti Trucks QX50 uses two primary tire sizes, and the correct one depends on the exact sub-model and wheel package. Both are radial fitments, but they use different rim diameters, so confirming whether the vehicle is on a 19-inch or 20-inch wheel is the first step before comparing tread style, sidewall treatment, or performance-oriented product options.
235/55R19 is a metric radial size in which 235 identifies section width in millimeters, 55 is the aspect ratio, R marks radial construction, and 19 is the wheel diameter in inches. On the 2019 Infiniti Trucks QX50, this size supports the model's 19-inch fitment and appears across multiple sub-models. Its profile gives the buyer a useful reference point when confirming the vehicle's existing wheel setup. Choose this size when the QX50 is equipped with the correct 19-inch wheels and the goal is to stay with the proper primary fitment rather than move into the 20-inch package.
255/45R20 is a metric radial size with a 255-millimeter nominal section width, a 45-series aspect ratio, and a 20-inch rim diameter. On the 2019 Infiniti Trucks QX50, this size belongs to the 20-inch fitment and carries a lower-profile look than the 19-inch option. Available products in this size include BFGoodrich, Nitto, and Pro-Trac choices, with Blackwall, raised white letter, and Redline sidewall treatments represented. This size is the one to evaluate when the vehicle is already equipped with 20-inch wheels and the buyer wants to compare appearance and product character within that fitment.
Sub-model fitment matters on the 2019 Infiniti Trucks QX50 because not every version uses the same tire size. The Luxe and Pure stay with one primary size, while the Essential can appear with either fitment depending on wheel configuration.
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2019 Infiniti Trucks QX50 Essential
The 2019 Infiniti Trucks QX50 Essential is the sub-model that requires the closest wheel check, because it appears with either the 19-inch or 20-inch radial fitment. Tire selection starts with confirming the actual wheel diameter on the vehicle, then narrowing the choice by sidewall style, brand, and intended road use within that size.
The 2019 Infiniti Trucks QX50 Luxe uses the 235/55R19 radial fitment, which keeps selection focused on the 19-inch wheel package. That makes the process more straightforward, with the main priorities being proper size confirmation, wheel compatibility, and choosing a tire that suits the vehicle's everyday driving role.
The 2019 Infiniti Trucks QX50 Pure also uses the 235/55R19 radial size, so fitment stays tied to the 19-inch wheel setup. Tire choice is less about sorting between multiple primary sizes and more about confirming the existing wheels and selecting a tire that matches the QX50's intended use and overall presentation.
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 2019 Infiniti Trucks QX50 Tires for Sale
Available product choices center on the 255/45R20 fitment, with BFGoodrich, Nitto, and Pro-Trac options in several tire series. Buyers can compare Blackwall, raised white letter, and Redline sidewall treatments along with differences in rim-width suitability and other product characteristics.
Owners of a 2019 Infiniti Trucks QX50 usually need to sort out wheel diameter first, then compare tire size, sub-model fitment, and available radial options. The questions below focus on size selection, 19-inch versus 20-inch setups, appearance choices, and practical road-use checks.
Tire Size & Fitment
What tire size fits a 2019 Infiniti Trucks QX50?
The 2019 Infiniti Trucks QX50 uses either 235/55R19 or 255/45R20, depending on the sub-model and wheel setup. Both are radial tire sizes, but they are not the same fitment because they mount on different wheel diameters and have different width and profile designations.
The next step is confirming which wheels are actually on the vehicle. A QX50 Luxe or Pure uses 235/55R19, while an Essential can use either size, so checking the tire sidewall and the wheel package matters before comparing brands, sidewall styles, or other product differences.
What size rim does a 2019 Infiniti Trucks QX50 use?
A 2019 Infiniti Trucks QX50 uses either a 19-inch or 20-inch rim, depending on the tire size fitted to the vehicle. The 235/55R19 tire belongs on a 19-inch wheel, while the 255/45R20 tire belongs on a 20-inch wheel.
Wheel diameter should be confirmed before anything else, because the tire size must match the rim size exactly. Once the diameter is verified, it becomes much easier to narrow the search to the correct fitment and then compare the available radial tire options that suit the vehicle's existing wheel package.
Do all 2019 Infiniti Trucks QX50 sub-models use the same tire size?
No, the 2019 Infiniti Trucks QX50 does not use one tire size across every covered sub-model. The Luxe and Pure use 235/55R19, while the Essential can be fitted with either 235/55R19 or 255/45R20 depending on its wheel configuration.
That difference matters because tire choice is tied to both the sub-model and the wheel package already on the vehicle. On an Essential, it is especially important to inspect the current wheel diameter and sidewall markings rather than assume all QX50 trims share the same fitment.
Choosing the Right Tire
What should I consider when choosing a tire for a 2019 Infiniti Trucks QX50?
Start with the correct primary size for the vehicle's wheel package: 235/55R19 or 255/45R20. From there, compare the tire's construction, width and profile format, rim compatibility, and whether the overall style of the tire matches how the QX50 is driven and presented.
A buyer with 20-inch wheels also has more visible product variation to compare, including different brands, tire series, and sidewall styles. It helps to confirm the current wheel setup first, then focus on the details that matter most for the vehicle, such as appearance, load-related specifications, and intended road use.
What sidewall styles are available for 2019 Infiniti Trucks QX50 tires?
For the 255/45R20 fitment on the 2019 Infiniti Trucks QX50, available sidewall styles include Blackwall, raised white letter, and Redline. Those choices change the visual presentation of the tire even when the size remains the same.
Sidewall style should be chosen after the correct tire size and wheel diameter are confirmed. Blackwall tends to keep the look understated, while raised white letter and Redline add more visual emphasis, so the best choice depends on whether the goal is a restrained luxury appearance or a more customized presentation.
What brands offer tires for the 2019 Infiniti Trucks QX50?
The 255/45R20 fitment for the 2019 Infiniti Trucks QX50 is available from BFGoodrich, Nitto, and Pro-Trac. Those choices also span multiple tire series, so brand is only one part of the comparison.
A useful approach is to compare each option within the correct size and wheel package rather than choosing by brand name alone. Looking at sidewall treatment, tire series character, and wheel-width suitability helps narrow the field and keeps the selection focused on how the QX50 is actually equipped.
Restoration & Appearance
Which tire should I choose for a period-style 2019 Infiniti Trucks QX50?
A period-style approach on a 2019 Infiniti Trucks QX50 starts with keeping the correct original fitment size for the wheel package already on the vehicle, either 235/55R19 or 255/45R20. Staying within the proper size preserves the model's intended proportions more effectively than changing to an unrelated width or rim diameter.
Appearance then comes down to the specific tire presentation available in that size. On the 20-inch fitment, sidewall choices such as Blackwall, raised white letter, or Redline create very different visual results, so the right tire depends on whether the QX50 is being kept close to stock-looking or given a more personalized look.
Does correct tire fitment matter for a 2019 Infiniti Trucks QX50 restoration or appearance-focused build?
Yes, correct tire fitment matters because the 2019 Infiniti Trucks QX50 uses specific 19-inch and 20-inch wheel-based sizes that shape both stance and visual balance. A tire that is outside the proper fitment can alter the way the vehicle sits and can make an appearance-focused build look mismatched.
The cleanest result comes from confirming the actual wheel diameter and then choosing a tire that belongs to that setup. Sidewall style can then be used as the finishing touch, while wheel width, clearance, and suspension condition should still be checked before moving away from the existing configuration.
Fitment, Maintenance & Road Use
Can modifications affect tire fitment on a 2019 Infiniti Trucks QX50?
Yes, modifications can affect tire fitment on a 2019 Infiniti Trucks QX50 even when the tire size looks close on paper. Aftermarket wheels, altered offsets, suspension changes, or body modifications can change the space available around the tire and influence whether the intended size works cleanly on the vehicle.
A modified QX50 should be checked for wheel diameter, wheel width, and clearance at the fender and steering range before a new tire is chosen. That is especially important when sorting between the 19-inch and 20-inch fitments, because the vehicle should be matched to its actual hardware rather than assumed trim specifications.
What should I inspect before driving a 2019 Infiniti Trucks QX50 on new tires?
Inspect the wheel size, tire pressure, and the overall condition of the wheels before putting a 2019 Infiniti Trucks QX50 back into regular road use on new tires. It also helps to look over suspension and steering components so the new tires are not being asked to work around an existing alignment or wear issue.
A short visual check of tread seating, sidewall condition, and any early signs of rubbing is worthwhile after installation. Once the correct 19-inch or 20-inch fitment is confirmed, a careful road test can reveal vibration, contact, or other issues that should be addressed before longer trips.
How often should tires on a 2019 Infiniti Trucks QX50 be inspected?
Tires on a 2019 Infiniti Trucks QX50 should be inspected regularly, especially if the vehicle sees mixed use, seasonal storage, or long periods of sitting. Routine checks should include tread wear, visible cracking, cuts, bulges, and any sign that one tire is losing air faster than the others.
Inspection is also a good time to confirm that the vehicle is still wearing the correct size for its wheel package, either 235/55R19 or 255/45R20. Catching wear or fitment issues early helps preserve ride quality and makes it easier to correct pressure, alignment, or clearance problems before they become more expensive.
