Infiniti Trucks EX37 Tires

Infiniti Trucks EX37 uses two listed tire sizes for the 2013 model year: 225/55R18 and 245/45R19. The first size fits an 18-inch wheel, and the second fits a 19-inch wheel. Both are metric radial sizes, so the wheel diameter is shown directly in the final number of the size code.

The practical difference is that these sizes are not interchangeable unless the wheel diameter also matches. A driver looking at a 2013 Infiniti Trucks EX37 should check the tire sidewall currently on the vehicle or measure the wheel before choosing between the 18-inch and 19-inch fitment.

A 2013 Infiniti Trucks EX37 can have two listed tire sizes because the model was associated with two different wheel packages: 225/55R18 on 18-inch wheels and 245/45R19 on 19-inch wheels. This is a wheel-diameter split, not a change from one production year to another. The larger size also uses a wider, lower-profile tire.

That means year alone is not enough to identify the correct tire on an Infiniti Trucks EX37. The safest approach is to verify the actual wheel diameter and then match the complete tire size, especially if the vehicle has had wheels changed at some point in its life.

Infiniti Trucks EX37 uses either an 18-inch or 19-inch rim diameter in the listed fitments for 2013. A 225/55R18 tire belongs on an 18-inch wheel, while a 245/45R19 tire belongs on a 19-inch wheel. The rim diameter is the last number in each metric size code.

Because both diameters appear in the same model year, wheel inspection matters more than relying on registration year alone. If the vehicle still has its existing tires, the sidewall marking is usually the quickest way to confirm whether the Infiniti Trucks EX37 needs the 18-inch or 19-inch fitment.

Start by checking the tire sidewall currently fitted to the 2013 Infiniti Trucks EX37, because the listed sizes are 225/55R18 and 245/45R19. If the current tires are missing or the vehicle has been altered, confirm the wheel diameter directly. On this model, the last number in the tire size must match the wheel diameter exactly.

After confirming diameter, compare the full size code rather than width alone, since section width and aspect ratio also change between the two fitments. If the vehicle has aftermarket wheels, use the actual wheel and tire measurements on the car instead of assuming the original configuration remained unchanged.

The listed Infiniti Trucks EX37 products in the available 19-inch fitment are blackwall tires. That appearance suits the modern character of the EX37 and aligns with the performance-oriented radial products shown for 245/45R19. No alternate sidewall style appears in the current product set.

For a buyer, that means visual choice is narrower than it would be on an older collector vehicle page where whitewalls or period styles might matter. On an Infiniti Trucks EX37, the more important selection points are correct size, wheel diameter, and matching the tire’s intended performance character to how the vehicle is driven.

The listed Infiniti Trucks EX37 tire brands in the available products are BFGoodrich and Nitto. BFGoodrich appears with multiple 245/45ZR19 offerings, while Nitto appears with a 245/45ZR19XL performance radial. All listed products for this fitment are radial blackwall tires.

Brand choice on an Infiniti Trucks EX37 comes after the basic fitment decision is settled. Once the vehicle is confirmed to use the 19-inch setup, buyers can compare brand preference, load rating details where shown, and the overall performance character of each available series.

The listed Infiniti Trucks EX37 product series for the 19-inch fitment are g-Force Comp 2 AS, Nitto NT555 G2, and g-Force Phenom T/A. All three are radial tire series, but they represent different product lines rather than different vintage construction categories. The sizing remains the same 245/45R19 family even though the series names differ.

That means the main fitment decision still centers on whether the Infiniti Trucks EX37 uses 18-inch or 19-inch wheels. Once the vehicle is confirmed as a 19-inch application, the series choice becomes a matter of preferred driving character, appearance, and supporting specifications such as wheel-width compatibility where those details are listed.

An Infiniti Trucks EX37 should be stored on a clean, dry surface away from direct sunlight, ozone sources, and major temperature swings. Keeping the tires properly inflated helps preserve casing shape during long periods of inactivity. If the vehicle sits for extended stretches, moving it occasionally can help avoid flat spotting.

Collectors and low-mileage owners should treat storage as part of tire care, not just vehicle care. Even modern radial tires on an Infiniti Trucks EX37 age from time, environment, and load, so a stable garage setting and regular inflation checks can do as much for service life as tread depth.

Tires on an Infiniti Trucks EX37 should be inspected at regular intervals even if the vehicle is driven sparingly. Look for tread wear, cracking, punctures, sidewall bulges, uneven shoulder wear, and signs that inflation has dropped. A quick visual check before every drive and a more careful inspection several times a year is a sensible routine.

That inspection matters because vehicles that see occasional use can hide age-related issues until the car is back on the road at speed. On an Infiniti Trucks EX37, catching wear patterns early can also reveal alignment, suspension, or inflation problems before they shorten the life of an otherwise usable set of tires.

Tires on an Infiniti Trucks EX37 should be replaced when they show age cracking, impact damage, persistent air loss, bulges, irregular wear, or any structural concern even if the tread still appears deep. Tread depth alone is not a complete measure of tire health. Time, heat cycles, and storage conditions all affect serviceability.

A low-mileage Infiniti Trucks EX37 can still need replacement tires long before the tread is worn out. If there is any doubt about age or condition, especially on a vehicle that has spent years in storage, a hands-on inspection by a qualified tire professional is the right next step before regular road use.

The listed original-type fitments associated with Infiniti Trucks EX37 for 2013 are 225/55R18 and 245/45R19, reflecting two different wheel packages. Both are modern metric radial sizes rather than older numeric or bias-ply formats. The size tied to a specific vehicle depends on which wheel diameter that individual EX37 carries.

For an authenticity-minded owner, the most reliable reference point is the existing wheel-and-tire specification on the vehicle, backed up by factory labeling or marque literature. An Infiniti Trucks EX37 restored or preserved in factory style should keep the wheel diameter and tire size pairing consistent rather than mixing 18-inch and 19-inch fitments.

Correct tire fitment can affect both presentation and credibility on an Infiniti Trucks EX37, especially when a vehicle is being preserved in factory-style condition. The right size maintains the intended wheel-to-tire proportions and helps the vehicle sit as expected. On a modern collectible, judges and knowledgeable buyers often notice incorrect overall diameter or mismatched wheel-package details.

That does not mean every Infiniti Trucks EX37 must be restored for formal judging, but it does mean fitment choices should be deliberate. If originality matters, keep the size matched to the proper 18-inch or 19-inch wheel package and avoid treating one listed tire size as a universal replacement for the other.

Blackwall is the sidewall style shown in the listed Infiniti Trucks EX37 products. That suits the EX37’s late-model luxury-performance character and matches the contemporary radial tire presentation associated with this type of vehicle. No whitewall or other period-style sidewall treatment appears in the current product range.

For a factory-style Infiniti Trucks EX37 restoration or preservation project, blackwall is the appearance to follow from the available listings. Authenticity here is less about decorative sidewall treatment and more about keeping the correct overall size, wheel diameter, and profile for the specific wheel package the vehicle originally used.

The listed Infiniti Trucks EX37 products for the 19-inch fitment are modern radial road tires, so they are intended for normal public-road use when they are the correct size, properly installed, and in sound condition. Safety depends on matching the tire to the correct wheel diameter and keeping inflation, alignment, and overall condition in order.

A buyer should think of safety as a complete vehicle question, not a tire-only question. Even the right tire on an Infiniti Trucks EX37 needs proper mounting, balanced wheels, and a healthy suspension and braking system before the vehicle is used regularly at everyday traffic speeds.

Before driving an Infiniti Trucks EX37, check inflation pressure, visible tire condition, tread wear, and the exact size marked on the sidewall. On this model, the most important fitment check is whether the vehicle is on 18-inch or 19-inch wheels, since both sizes appear for the same model year. Also look for damage from curb impact or long-term storage.

That quick inspection can prevent common problems such as running the wrong pressure or discovering an aged tire only after the vehicle is already moving. If an Infiniti Trucks EX37 has recently come out of storage or changed hands, a full inspection of all four tires is a smart precaution before any longer drive.

An Infiniti Trucks EX37 should only be driven at speeds appropriate for the exact tires fitted, their condition, and the vehicle’s overall mechanical state. The listed 19-inch products include modern radial tires with performance-oriented sizing, but safe road speed is never determined by size alone. Age, inflation, load, weather, and installation quality all matter.

In practical terms, an Infiniti Trucks EX37 on fresh, properly matched tires in good mechanical condition can be used normally within legal limits, while an older or questionable set should be treated much more cautiously. Any uncertainty about tire age, damage, or prior storage history should be resolved before sustained highway driving.