The 2014 Acura Trucks MDX arrived as a modern three-row luxury crossover with a strong focus on everyday comfort, refined road manners, and all-weather usability. For owners keeping one on the road today, tire choice is less about vintage-style restoration and more about matching the vehicle’s wheel setup and intended use. This MDX uses radial tires in two primary sizes, 245/55R19 and 245/60R18, depending on the wheel diameter on the vehicle. Because both the Base and SH-AWD can use either size, the first step is confirming whether the MDX has 18-inch or 19-inch wheels. From there, the decision centers on proper size, rim match, and road-ready condition.
Which Tire Size Is Right for The 2014 Acura Trucks MDX
Two tire sizes apply to the 2014 Acura Trucks MDX, and the key difference is wheel diameter. Both the Base and SH-AWD can use either 245/55R19 or 245/60R18, so the first thing to confirm is whether the vehicle is equipped with 19-inch or 18-inch rims. Once that is established, the decision becomes choosing the right radial tire in the correct size for the wheel already on the vehicle.
245/55R19 is a metric radial size where 245 identifies the nominal section width in millimeters, 55 is the aspect ratio, R indicates radial construction, and 19 is the wheel diameter in inches. On the 2014 Acura Trucks MDX, this size corresponds to a 19-inch wheel setup and maintains the modern radial construction used on the vehicle. Its dimensions place it very close in overall diameter to the 18-inch alternative, but it is matched to a different rim diameter. Choose this size only after confirming that the MDX is running 19-inch wheels.
245/60R18 is a metric radial size with a 245-millimeter nominal section width, a 60-series profile, radial construction, and an 18-inch rim diameter. For the 2014 Acura Trucks MDX, this size is used on vehicles equipped with 18-inch wheels and offers nearly the same overall tire diameter as the 19-inch option. That close diameter relationship helps preserve the vehicle’s intended stance, but the rim diameter remains different and must match the wheel exactly. This is the right size to evaluate when the MDX has 18-inch rims already installed.
Tire fitment for the 2014 Acura Trucks MDX is straightforward because both covered sub-models use the same two radial size options. The real fitment question is not the trim level, but whether the vehicle has 18-inch or 19-inch wheels.
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2014 Acura Trucks MDX Base
The 2014 Acura Trucks MDX Base can use either of the two primary radial sizes offered for this model year. Tire selection starts with confirming the wheel diameter on the vehicle, then choosing the matching size for proper rim fitment.
The 2014 Acura Trucks MDX SH-AWD shares the same two radial tire sizes as the Base model. That means the most important step is verifying whether the vehicle is on 18-inch or 19-inch wheels before comparing replacement tire options.
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
Common questions for the 2014 Acura Trucks MDX usually center on tire size, wheel diameter, trim-level fitment, and what to inspect before putting the vehicle back into regular road use.
Tire Size & Fitment
What tire size fits a 2014 Acura Trucks MDX?
The 2014 Acura Trucks MDX uses two primary tire sizes: 245/55R19 and 245/60R18. Both are radial sizes, and both the Base and SH-AWD sub-models can use either one depending on the wheel diameter installed on the vehicle.
The most important step is matching the tire to the actual rim on the MDX. A 245/55R19 requires a 19-inch wheel, while a 245/60R18 requires an 18-inch wheel. Before replacing tires, check the wheel size on the vehicle itself rather than assuming fitment based only on trim name.
What size rim does a 2014 Acura Trucks MDX use?
A 2014 Acura Trucks MDX may use either an 18-inch or 19-inch rim, depending on the wheel setup on the vehicle. The 245/60R18 tire size belongs on an 18-inch wheel, and the 245/55R19 tire size belongs on a 19-inch wheel.
Rim diameter has to match the tire exactly, so this is the first thing to verify before buying replacements. It is also smart to confirm that all four wheels on the vehicle match, especially if the MDX has had prior wheel changes, seasonal wheel packages, or replacement wheels installed at some point.
Do all 2014 Acura Trucks MDX sub-models use the same tire size?
The covered 2014 Acura Trucks MDX sub-models share the same two tire size options. Both the Base and SH-AWD can use 245/55R19 or 245/60R18, so there is no separate tire size split between those two sub-model names alone.
That makes sub-model identification less important than wheel verification. Instead of choosing tires by trim badge, confirm whether the MDX has 18-inch or 19-inch rims and then match the tire size to that wheel diameter. Checking the current tire sidewall and the wheel itself helps avoid ordering the wrong size.
Choosing the Right Tire
What should I consider when choosing a tire for a 2014 Acura Trucks MDX?
Start with the correct primary size for the wheel on the vehicle: 245/55R19 for a 19-inch rim or 245/60R18 for an 18-inch rim. Because both sizes are radial and both apply across the covered MDX sub-models, the main selection point is matching the tire to the installed wheel diameter.
After confirming size, look at how the MDX is used. A daily-driven crossover may call for different priorities than a vehicle used mainly for occasional family trips. It is also worth checking tire age, tread wear, and whether all four tires match, especially on an SH-AWD vehicle where consistent sizing matters.
How do I choose between the available tire sizes for a 2014 Acura Trucks MDX?
The two sizes are not interchangeable by preference alone because each one is tied to a different wheel diameter. Choose 245/55R19 only when the MDX has 19-inch wheels, and choose 245/60R18 only when it has 18-inch wheels.
Even though the two sizes are very close in overall diameter, the bead seat diameter must match the wheel exactly. If the MDX was purchased used or has had wheel changes in the past, inspect the current sidewall markings and verify the wheel size before moving ahead with replacement tires.
What rim-fitment details matter when choosing 2014 Acura Trucks MDX tires?
The key rim-fitment detail is diameter. A 245/55R19 tire is built for a 19-inch wheel, while a 245/60R18 tire is built for an 18-inch wheel, and the 2014 Acura Trucks MDX uses both of those wheel diameters depending on configuration.
Wheel condition matters too. Inspect for bent rims, prior repairs, corrosion at the bead area, and any mismatch from one corner to another. If the MDX has aftermarket wheels, confirm that the wheel dimensions and overall tire clearance remain appropriate before selecting a replacement tire in either size.
Restoration & Appearance
Does correct tire fitment matter for a 2014 Acura Trucks MDX restoration or preservation project?
Yes. Even though a 2014 Acura Trucks MDX is a modern vehicle rather than a vintage restoration candidate, correct tire fitment still matters for preserving its intended stance, ride quality, and overall presentation. The vehicle’s two proper tire sizes are 245/55R19 and 245/60R18, each matched to its own wheel diameter.
For a clean preservation-minded result, keep the tire size consistent with the wheel setup already on the vehicle and avoid mixing different diameters front to rear unless the vehicle is specifically built that way. Uniform sizing, even wear, and matching tires all around usually give the MDX a more settled and properly maintained appearance.
How does tire size affect the appearance of a 2014 Acura Trucks MDX?
Tire size has a noticeable effect on how a 2014 Acura Trucks MDX sits and fills the wheel openings, even when the two approved sizes are close in overall diameter. The 245/55R19 pairs with a 19-inch wheel, while the 245/60R18 pairs with an 18-inch wheel, so the visual balance changes with the wheel itself.
Appearance should still follow fitment. A larger-looking wheel package is not a reason to force the wrong tire onto the wrong rim diameter. For a tidy, well-kept look, match the tire size to the installed wheel, keep all four tires consistent, and replace worn or weathered tires before they detract from the vehicle’s overall presentation.
Fitment, Maintenance & Road Use
Can modifications affect tire fitment on a 2014 Acura Trucks MDX?
Yes. Wheel changes, suspension modifications, lowering, or non-original offsets can all affect tire fitment on a 2014 Acura Trucks MDX, even when the tire size itself is one of the correct primary sizes. The factory-style fitment path starts with 245/55R19 on 19-inch wheels or 245/60R18 on 18-inch wheels.
A modified MDX should be checked for steering clearance, inner-fender clearance, and suspension travel before new tires are installed. It is also smart to verify that all four wheels are the same diameter and specification. Small fitment issues often show up first at full lock, over bumps, or with a fully loaded vehicle.
What should I inspect before driving a 2014 Acura Trucks MDX on new tires?
Before putting a 2014 Acura Trucks MDX back into regular use on new tires, inspect the wheels, valve stems, and lug hardware, and confirm that the tire size matches the wheel diameter. It is also wise to look over the brakes and suspension for any obvious wear that could affect how the new tires perform.
Once the tires are installed, check pressure regularly and pay attention to vibration, pulling, or unusual noise on the first few drives. An alignment check is often worthwhile if the old tires showed uneven wear. Catching those issues early helps the new set wear more evenly and keeps the MDX settled on the road.
How often should tires on a 2014 Acura Trucks MDX be inspected?
Tires on a 2014 Acura Trucks MDX should be inspected regularly, not just when they look low or worn. A quick visual check for cuts, bulges, cracking, embedded objects, and uneven tread wear should be part of routine ownership, especially before highway driving or seasonal trips.
Vehicles that sit for longer periods deserve extra attention because age and underinflation can become problems even when mileage stays low. It helps to monitor pressure, look for sidewall weathering, and inspect tread depth across the full width of the tire. Regular checks make it easier to catch a small issue before it becomes a roadside problem.
