2013 Infiniti Trucks Tire Fitment Guide

2013 Infiniti Trucks vehicles use nine sizes across five models: EX37 uses 225/55R18 or 245/45R19, FX37 uses 265/60R18 or 265/50R20, FX50 uses 265/45R21, JX35 uses 235/65R18 or 235/55R20, and QX56 uses 275/60R20 or 275/50R22. All of these are radial sizes, and they mount on rims that match their final diameter number: 18, 19, 20, 21, or 22 inches.

That spread means year and make alone are not enough to choose a tire for 2013 Infiniti Trucks. You need the exact model and the actual wheel diameter already on the vehicle, especially on models such as the EX37, FX37, JX35, and QX56 that were offered with more than one wheel package. Checking the sidewall on the current tire and confirming the wheel size before ordering is the safest starting point.

On a 2013 Infiniti Trucks tire, 245/45R19 means the tire is 245 millimeters wide, has a 45-series aspect ratio, uses radial construction, and fits a 19-inch wheel. On this year and make, that size applies to the EX37. The available 245/45R19 products are performance-oriented radials, and the examples in this fitment carry either W or Y speed ratings depending on the tire.

Understanding that code helps you avoid one of the most common mistakes with modern luxury crossovers: matching width but missing the wheel diameter or profile. A 245/45R19 cannot replace an 18-inch EX37 fitment just because the model name matches. If your EX37 wears 19-inch wheels, this is the size family to focus on, then compare the available product options by speed rating, rim-width compatibility, and intended driving style.

No. 2013 Infiniti Trucks models do not share one universal tire size. The EX37, FX37, FX50, JX35, and QX56 each use their own fitments, and several of those models were offered with two different wheel diameters. The overall range runs from 225/55R18 on the smaller end to 275/50R22 on the full-size SUV end.

That model-by-model variation reflects how different these vehicles were in mission and stance. The compact EX37 and larger QX56 were built around very different wheel and tire packages, and even within one model line you may be choosing between two diameters. If you only know you have a 2013 Infiniti Trucks vehicle, identify the model first and then verify the wheel size before narrowing down to a tire.

The 245/45R19 fitment for 2013 Infiniti Trucks is available in Blackwall form. That appearance suits the modern luxury-performance character of a 2013 Infiniti crossover or SUV and aligns with the visual treatment most buyers expect on late-model Infiniti wheel packages. No whitewall or vintage sidewall treatment enters into this year and make’s fitment picture.

For a 2013 Infiniti Trucks owner, sidewall choice is usually less about restoration authenticity and more about maintaining the clean, contemporary look the vehicle was designed around. If you are replacing only two tires, matching the remaining pair matters for appearance as well as handling balance. If your goal is a uniform look across all four corners, check the sidewall style before settling on a specific product.

BFGoodrich and Nitto both make 245/45R19 tires for 2013 Infiniti Trucks EX37 applications. BFGoodrich appears in both g-Force COMP-2 A/S and g-Force Phenom T/A form, while Nitto is represented by the NT555 G2. All of them are radial Blackwall tires aimed at modern road use rather than vintage-style replacement.

Brand choice on a 2013 Infiniti Trucks application often comes down to the combination of size, performance character, and speed rating you want within the correct fitment. If your EX37 uses 19-inch wheels, you can compare BFGoodrich and Nitto directly in the same size family. Owners of other 2013 Infiniti Trucks models should start with the exact size first, since the key issue across this lineup is fitment accuracy by model and wheel package.

For the 2013 Infiniti Trucks EX37 in 245/45R19, BFGoodrich g-Force COMP-2 A/S and BFGoodrich g-Force Phenom T/A share the same basic size and Blackwall radial construction, but they differ in rating and load information. The COMP-2 A/S is marked 98W, while the Phenom T/A is marked 102Y and carries a max load figure of 1,874 pounds at 50 psi. Their weights are also slightly different, with the COMP-2 A/S at 29 pounds and the Phenom T/A at 29.26 pounds.

Those differences matter when you want to compare one 245/45R19 option against another without changing size. The higher Y speed designation on the Phenom T/A gives it a greater speed ceiling than the W-rated COMP-2 A/S, while the published load figure adds another point of reference for setup decisions. An EX37 owner should still begin by confirming 19-inch wheels, then compare the specific tire’s rating and dimensional compatibility with the intended use.

A published rim-width range is available for the 245/45R19 fitment used on the 2013 Infiniti Trucks EX37. BFGoodrich g-Force COMP-2 A/S and BFGoodrich g-Force Phenom T/A both fit 7.5- to 9-inch rims in that size. The wheel still needs to match the tire’s 19-inch diameter, since rim width and rim diameter are two separate compatibility checks.

That matters because a tire can match the correct overall size code and still be unhappy on a wheel that is too narrow or too wide for its intended profile. If you are replacing an EX37 tire in 245/45R19, measure or verify the wheel width before final selection, especially if the vehicle has aftermarket wheels. Staying inside the tire’s approved rim-width range helps preserve the shape, contact patch, and handling behavior the tire was designed to deliver.

The 245/45R19 products available for 2013 Infiniti Trucks are modern radial tires with tubeless-style size markings rather than tube-type markings. That aligns with the construction and wheel practice typical of a 2013 Infiniti crossover. No tube requirement appears in this fitment family, and the available products are presented as contemporary radial applications rather than vintage tube-type tires.

For a 2013 Infiniti Trucks owner, the practical takeaway is to focus on wheel condition, valve stems, and proper tire installation rather than planning around tube use. If the vehicle has original wheels, make sure they are clean and free of corrosion where the bead seats. If it has aftermarket wheels, verify the wheel manufacturer’s requirements as well, since the wheel itself can affect setup decisions even when the tire size is correct.

A 2013 Infiniti Trucks vehicle should be stored on clean, properly inflated tires in a cool, dry space away from direct sunlight, electric motors, battery chargers, welders, and other ozone-producing equipment. If the vehicle will sit for long periods, moving it periodically helps avoid localized flat spotting and keeps one part of the tread from carrying the load continuously. Clean floors and stable temperatures are kinder to modern radial sidewalls than damp or sunlit conditions.

Luxury crossovers and SUVs often spend part of the year in low-use collector or second-vehicle service, which makes storage habits more important than many owners expect. If the vehicle will be parked for an extended season, some owners use tire cradles or support stands to reduce prolonged load on one spot. The goal is not just preserving tread, but also maintaining casing shape and sidewall condition so the tires remain smooth and dependable when driving resumes.

Tire life on a 2013 Infiniti Trucks vehicle should be judged by age and condition as much as by tread depth. A common collector-vehicle rule of thumb is to begin evaluating tires closely around five to seven years of age and to treat the ten-year point as a serious replacement consideration, even if the vehicle has not covered many miles. The DOT date code on the sidewall tells you when each tire was built.

That age-based approach matters because many Infiniti crossovers and SUVs accumulate miles slowly compared with commuter cars, yet still carry the full weight and speed expectations of a modern highway vehicle. A tire can look usable at a glance and still be aging internally. If your 2013 Infiniti Trucks vehicle sees occasional use, check date codes across all five tires, including the spare, and weigh age alongside visible condition before planning longer trips.

Tires on a 2013 Infiniti Trucks vehicle should be inspected before every drive and given a more thorough look before any extended highway outing. Check inflation pressure, tread wear pattern, cuts, punctures, bulges, and sidewall cracking, and make sure the valve stems are in good condition. Because these are modern radial fitments, uneven wear can also point to alignment or suspension issues rather than tire age alone.

That routine is especially worthwhile on a premium SUV or crossover, where a quiet cabin can hide early warning signs until a problem becomes obvious. A quick walk-around before driving can catch low pressure or visible damage, while a longer inspection can reveal edge wear, cupping, or impact damage from potholes. If anything looks irregular, address it before the next trip instead of assuming a tire in the correct size is automatically road-ready.

Yes, 2013 Infiniti Trucks tires are suitable for highway driving when they are the correct size for the model, in sound condition, and inflated properly. The available 245/45R19 EX37 fitment includes W-rated tires with a 168 mph ceiling and a Y-rated tire with a 186+ mph ceiling, which are well above normal U.S. highway speeds. On a 2013 Infiniti vehicle, overall roadworthiness usually depends more on tire age, maintenance, alignment, brakes, and suspension condition than on absolute speed rating alone.

The practical point is that safety starts with matching the exact fitment and then keeping the tire healthy, not chasing the highest number on the sidewall. A QX56 used for family road trips and an EX37 used as a sportier commuter still need the same fundamentals: proper inflation, even wear, and no signs of structural damage. Before regular interstate use, confirm the tire’s speed category, load capacity, and physical condition as a complete package.

Inflation pressure for 2013 Infiniti Trucks should follow the vehicle manufacturer’s recommendation for the exact model and wheel package first, then be checked against the tire maker’s own specifications for the replacement tire. One available 245/45R19 option for the EX37, BFGoodrich g-Force Phenom T/A, carries a published maximum of 1,874 pounds at 50 psi. That figure is a tire rating limit, not a blanket operating pressure for every 2013 Infiniti Trucks fitment.

Using the correct pressure matters for tread wear, handling balance, ride quality, and load support, especially on heavier Infiniti SUVs. Do not move a pressure figure from a 19-inch EX37 tire to a JX35, FX, or QX56 size just because all are radials. The best practice is to start with the door-jamb or owner’s-manual recommendation for your exact model, then confirm that the replacement tire’s load-and-pressure rating supports that intended use.

Before a longer drive in a 2013 Infiniti Trucks vehicle, inspect each tire for cracking, cuts, bulges, punctures, and uneven wear, and confirm cold inflation pressure on all four tires plus the spare. Look closely at the sidewalls and valve stems, and make sure the size on the vehicle matches the wheel package it is actually wearing. Any vibration, pull, or steering-wheel shake should be addressed before the trip rather than monitored on the road.

Tires are only one part of the pre-drive picture, but they are the part that directly meets the road. On a 2013 luxury crossover or SUV, a sound tire setup works hand in hand with brakes, suspension, and alignment to keep the vehicle stable at interstate speeds. If the tires are older, recently repaired, or unfamiliar to you, a careful inspection becomes even more important before trusting the vehicle on a long highway run.