The 2013 Acura Trucks MDX sits in the early modern luxury-crossover era, blending three-row family utility with the sharper road manners that helped Acura distinguish the model from more truck-like SUVs of its time. Buyers looking at one today are usually balancing everyday drivability with keeping the vehicle properly sorted for long-term use. Tire fitment centers on two radial sizes, 255/55R18 and 255/50R19, with the choice tied to the vehicle’s exact sub-model and wheel diameter. That makes this page less about vintage-style construction and more about confirming the right rim size first, then choosing the correct fitment for appearance, ride, and normal road use.
Which Tire Size Is Right for The 2013 Acura Trucks MDX
The 2013 Acura Trucks MDX uses two primary tire sizes, and the correct one depends on sub-model and wheel diameter. Both are radial metric sizes, but one fits an 18-inch wheel and the other fits a 19-inch wheel, so the first step is confirming the exact MDX configuration and the wheels currently on the vehicle before comparing tire options.
255/55R18 is a metric radial size in which 255 is the nominal section width in millimeters, 55 is the aspect ratio, R identifies radial construction, and 18 is the wheel diameter in inches. On the 2013 Acura Trucks MDX, this size is used on 18-inch wheel applications rather than across every sub-model. Its dimensions give it the same overall diameter as the 19-inch fitment, but on a different wheel. This is the size to evaluate when the vehicle has the correct 18-inch setup and the goal is maintaining proper fitment for that configuration.
255/50R19 is also a metric radial size, using the same 255-millimeter nominal width but with a lower 50-series sidewall and a 19-inch rim diameter. For the 2013 Acura Trucks MDX, this size belongs to the 19-inch wheel application, so it should not be chosen unless the vehicle is equipped with that wheel diameter. Even though its overall diameter matches the 18-inch fitment, the wheel requirement is different. This size makes sense only after the sub-model and actual wheel package have been confirmed on the vehicle.
Tire fitment on the 2013 Acura Trucks MDX varies by sub-model rather than staying the same across the lineup. Checking the exact trim matters because the two fitments use different wheel diameters, even though their overall tire diameter is closely matched.
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2013 Acura Trucks MDX Base
The 2013 Acura Trucks MDX Base uses the 255/55R18 radial fitment. That makes wheel confirmation straightforward on an unmodified vehicle, and the main selection task becomes choosing the right 18-inch tire once the factory wheel setup is still in place.
The 2013 Acura Trucks MDX w/Advance Pkg. uses the 255/50R19 radial fitment. Tire selection starts with confirming the 19-inch wheel package, since this size shares overall diameter with the 18-inch option but requires a different rim.
The 2013 Acura Trucks MDX w/Technology Pkg. uses the 255/55R18 radial fitment. For buyers replacing tires on this version, the focus is on staying with the correct 18-inch metric size and checking that the vehicle has not been changed to a different wheel package.
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
These 2013 Acura Trucks MDX FAQs focus on the two correct tire sizes, how fitment changes by sub-model, what the size codes mean, and what to inspect before putting the vehicle back into regular road use.
Tire Size & Fitment
What tire size fits a 2013 Acura Trucks MDX?
A 2013 Acura Trucks MDX uses one of two radial tire sizes: 255/55R18 or 255/50R19. The Base and w/Technology Pkg. versions use 255/55R18, while the w/Advance Pkg. uses 255/50R19. Both sizes have the same overall diameter, but they are built for different wheel diameters.
The important step is matching the tire size to the actual sub-model and wheel package on the vehicle. An MDX that has been fitted with different wheels over the years may no longer match its original trim-based setup, so checking the wheel diameter on the vehicle is just as important as checking the badge or package name.
What size rim does a 2013 Acura Trucks MDX use?
A 2013 Acura Trucks MDX uses either an 18-inch or 19-inch rim, depending on sub-model. The 255/55R18 tire fits the 18-inch application, and the 255/50R19 tire fits the 19-inch application. The tire size itself tells you the wheel diameter in its final number.
Rim diameter is the first fitment point to verify because the two tire sizes are not interchangeable across different wheel diameters. Even though both sizes are close in overall height, a 19-inch tire cannot be mounted on an 18-inch wheel, and an 18-inch tire cannot be mounted on a 19-inch wheel.
Do all 2013 Acura Trucks MDX sub-models use the same tire size?
No, the 2013 Acura Trucks MDX does not use one tire size across every sub-model. The Base and w/Technology Pkg. versions use 255/55R18, while the w/Advance Pkg. uses 255/50R19. Both are modern radial metric sizes, but they belong to different wheel packages.
That difference matters most when replacing a full set after years of ownership, especially if the MDX has changed hands or received aftermarket wheels. A quick check of the current wheel diameter and the tire size already mounted will usually confirm which fitment the vehicle is using before any purchase decision is made.
Choosing the Right Tire
What should I consider when choosing a 255/55R18 tire for a 2013 Acura Trucks MDX?
Start by confirming that the MDX actually uses the 255/55R18 fitment, which applies to the Base and w/Technology Pkg. configurations. This size is a modern metric radial for an 18-inch wheel, so the key first step is matching the tire to the correct wheel diameter and vehicle setup.
After size is confirmed, compare normal replacement factors such as construction consistency across the set, load suitability, and the vehicle’s intended use. It also helps to inspect for previous wheel changes, uneven wear, or suspension issues, since those conditions can affect how well a new set performs on a daily-driven crossover.
What should I consider when choosing a 255/50R19 tire for a 2013 Acura Trucks MDX?
The 255/50R19 fitment belongs to the 2013 Acura Trucks MDX w/Advance Pkg. and is built for a 19-inch wheel. It shares the same overall diameter as the 18-inch MDX fitment, but the lower-profile sidewall means the wheel diameter must be correct before any further comparison begins.
Once the 19-inch setup is confirmed, the main considerations are keeping all four tires matched in size and construction, checking condition of the existing wheels, and making sure the vehicle still has adequate clearance if anything has been changed. That is especially worthwhile on an MDX that may have seen replacement wheels during prior ownership.
How do I choose between the available tire sizes for a 2013 Acura Trucks MDX?
The choice is not based on preference alone, because the 2013 Acura Trucks MDX uses two different primary sizes tied to different sub-models and wheel diameters. The correct size is 255/55R18 on the 18-inch setup or 255/50R19 on the 19-inch setup, rather than whichever size looks more appealing.
A practical approach is to confirm the exact trim, then verify the current wheels on the vehicle in case anything has been changed. Since both sizes are similar in overall diameter, the deciding factor is wheel fitment, not overall height, and that keeps the replacement process much more straightforward.
Restoration & Appearance
Does correct tire fitment matter for a 2013 Acura Trucks MDX restoration?
Yes, correct tire fitment still matters on a 2013 Acura Trucks MDX, even though it is a modern SUV rather than a vintage restoration project. Keeping the proper 255/55R18 or 255/50R19 size helps preserve the intended wheel-and-tire relationship for the specific sub-model and avoids an obviously mismatched setup.
For an owner trying to return an MDX to a clean, stock-style presentation, the first priority is confirming whether the vehicle should be on the 18-inch or 19-inch package. A well-sorted appearance starts with the right wheel diameter and tire proportions, especially on a vehicle that may have received aftermarket replacements during its service life.
How does tire construction affect the appearance of a restored 2013 Acura Trucks MDX?
On a 2013 Acura Trucks MDX, tire construction is straightforward because the primary fitments are radial. That means the appearance question is less about choosing between bias-ply and radial styling, and more about keeping the proper metric size and sidewall proportion that belongs with the vehicle’s 18-inch or 19-inch wheel package.
A tire with the wrong aspect ratio or wheel diameter can change the visual balance of the MDX even if it physically mounts to the vehicle. Owners aiming for a stock-style look usually get the best result by starting with the correct trim-based size, then confirming that the wheels and suspension remain close to the original setup.
Fitment, Maintenance & Road Use
Can modifications affect tire fitment on a 2013 Acura Trucks MDX?
Yes, modifications can affect tire fitment on a 2013 Acura Trucks MDX. Wheel changes, altered offsets, suspension lowering, and non-original wheel diameters can all change what size works properly, even when the vehicle originally used either 255/55R18 or 255/50R19 from the factory-style trim package.
An MDX with aftermarket wheels should be checked carefully before replacing tires by size alone. Confirm the actual wheel diameter, inspect for clearance at full steering lock, and look for any signs of rubbing around the fenders or suspension so the replacement tire matches the vehicle as it currently sits.
What should I inspect before driving a 2013 Acura Trucks MDX on new tires?
Before driving a 2013 Acura Trucks MDX on new tires, inspect the wheels for damage, verify that all four tires are the correct size for the vehicle’s wheel package, and make sure inflation pressure is set properly. It is also smart to check for uneven old wear that could point to alignment or suspension issues.
A short road test should follow installation so vibration, pull, or clearance problems can be caught early. Since the MDX uses two different wheel-and-tire combinations depending on sub-model, confirming that the new tires match the actual wheels on the vehicle is one of the most important checks before regular use resumes.
How often should tires on a 2013 Acura Trucks MDX be inspected?
Tires on a 2013 Acura Trucks MDX should be inspected regularly, not just when tread looks low. A visual check for cracking, cuts, bulges, punctures, and uneven wear is worthwhile throughout the year, especially on a vehicle that sees mixed city and highway use or sits for longer periods between drives.
It also helps to inspect after any impact with potholes or curbs, since wheel damage or alignment changes may not be obvious at first. On an MDX, routine checks help confirm that the 18-inch or 19-inch fitment is wearing evenly and that pressure loss or suspension problems are not shortening tire life.
