The 2019 Lincoln Trucks Nautilus arrived as a refined midsize luxury crossover with a strong emphasis on quiet road manners, upscale presentation, and everyday comfort. For owners, tire choice plays a major role in preserving that character because this model uses more than one factory-style fitment depending on trim. The 2019 Lincoln Trucks Nautilus uses radial tires in 245/60R18, 245/50R20, or 265/40R21 sizes, all on different rim diameters. That means the real decision starts with identifying the exact sub-model and wheel setup before comparing replacement tires. Once that is confirmed, the focus shifts to matching the right profile, wheel diameter, and overall driving intent.
Which Tire Size Is Right for The 2019 Lincoln Trucks Nautilus
Three primary tire sizes apply to the 2019 Lincoln Trucks Nautilus, and they vary by sub-model and wheel diameter. The first step is confirming whether the vehicle is a Base, Black Label, Reserve, or Select, then verifying whether it is on 18-inch, 20-inch, or 21-inch wheels. Once that is settled, the decision becomes choosing the right radial tire within the correct size for the vehicle's intended use and existing wheel setup.
A 245/60R18 tire uses a 245-millimeter nominal section width, a 60-series aspect ratio, radial construction, and an 18-inch rim. On the 2019 Lincoln Trucks Nautilus, this is one of the primary modern radial fitments and suits trims equipped with the corresponding 18-inch wheel package. Its profile is part of the vehicle's intended ride and handling balance, so keeping this exact size matters more than choosing a look-driven substitute. This size should be evaluated when the vehicle has its original 18-inch wheel diameter or an equivalent wheel setup with matching specifications.
A 265/40R21 tire has a 265-millimeter nominal section width, a 40-series aspect ratio, radial construction, and a 21-inch rim diameter. On the 2019 Lincoln Trucks Nautilus, this fitment is tied to trims using the larger 21-inch wheel package, so it should not be treated as interchangeable with the 18-inch or 20-inch options. The lower-profile format changes the tire's visual proportion compared with the other primary sizes, making wheel confirmation especially important. This is the size to evaluate when the vehicle is equipped with the corresponding 21-inch wheels and trim-specific fitment.
A 245/50R20 tire combines a 245-millimeter nominal section width with a 50-series aspect ratio, radial construction, and a 20-inch rim. For the 2019 Lincoln Trucks Nautilus, this size serves as a primary fitment on certain sub-model configurations that use 20-inch wheels. It sits between the 18-inch and 21-inch setups in wheel diameter, so selection depends on the actual wheel package rather than model year alone. This size is the right starting point when the vehicle has 20-inch wheels and the goal is to keep the intended fitment relationship between tire profile and rim diameter.
Tire fitment for the 2019 Lincoln Trucks Nautilus depends on the exact sub-model, and some trims use more than one primary size. Checking the trim and the wheel diameter together is the easiest way to avoid choosing an incorrect replacement tire.
1
2019 Lincoln Trucks Nautilus Base
The 2019 Lincoln Trucks Nautilus Base uses the 245/60R18 radial tire size. That makes replacement selection fairly straightforward, with the main task being confirmation that the vehicle still has its 18-inch wheel setup and has not been changed to a different package.
The 2019 Lincoln Trucks Nautilus Black Label uses the 265/40R21 radial size. Tire selection here starts with confirming the 21-inch wheel package, then choosing a replacement that stays true to that low-profile fitment and the vehicle's original wheel diameter.
The 2019 Lincoln Trucks Nautilus Reserve can use either 245/50R20 or 265/40R21 radial tires, depending on wheel configuration. That makes wheel diameter the key checkpoint before ordering, since the trim name alone does not narrow the fitment to one size.
The 2019 Lincoln Trucks Nautilus Select can use 245/60R18 or 245/50R20 radial tires. Choosing correctly means verifying whether the vehicle is on 18-inch or 20-inch wheels, especially if wheels have been changed since new.
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
Owners of a 2019 Lincoln Trucks Nautilus usually need clarity on trim-specific tire size, wheel diameter, and how to confirm the right radial fitment before replacing tires. These FAQs focus on size selection, wheel compatibility, tire choice, and practical road-use checks.
Tire Size & Fitment
What tire size fits a 2019 Lincoln Trucks Nautilus?
The 2019 Lincoln Trucks Nautilus uses one of three radial tire sizes: 245/60R18, 245/50R20, or 265/40R21. The correct size depends on the sub-model and wheel package, with Base using 245/60R18, Black Label using 265/40R21, Reserve using 245/50R20 or 265/40R21, and Select using 245/60R18 or 245/50R20.
The most important next step is confirming the actual wheel diameter on the vehicle before choosing a tire. Reserve and Select trims can appear under more than one fitment, so the trim badge alone is not enough if wheels have been changed or upgraded. Checking the sidewall on the current tire and verifying the wheel size prevents costly mistakes.
What size rim does a 2019 Lincoln Trucks Nautilus use?
A 2019 Lincoln Trucks Nautilus uses 18-inch, 20-inch, or 21-inch rims, depending on the specific sub-model and wheel package. The 245/60R18 tire matches an 18-inch rim, the 245/50R20 tire matches a 20-inch rim, and the 265/40R21 tire matches a 21-inch rim.
Rim diameter is the first fitment point to verify because each primary tire size is built around a different wheel size. A tire for a 20-inch wheel cannot be mounted on an 18-inch or 21-inch rim, even if the vehicle is the same model year and nameplate. Verifying the current wheel setup is especially important on trims that could be equipped with more than one size.
Do all 2019 Lincoln Trucks Nautilus sub-models use the same tire size?
No, 2019 Lincoln Trucks Nautilus sub-models do not all use the same tire size. Base uses 245/60R18, Black Label uses 265/40R21, Reserve uses either 245/50R20 or 265/40R21, and Select uses either 245/60R18 or 245/50R20.
That variation means tire selection starts with trim identification, but it should not end there. Reserve and Select both span more than one wheel diameter, so the safest approach is to confirm the size molded into the current tire sidewall and compare it with the actual wheels on the vehicle. That matters even more if the Nautilus has had dealer-installed or aftermarket wheel changes.
Choosing the Right Tire
What should I consider when choosing a 245/50R20 tire for a 2019 Lincoln Trucks Nautilus?
Start by confirming that the 2019 Lincoln Trucks Nautilus actually uses the 245/50R20 fitment, since that size applies to certain Reserve and Select configurations. A 245/50R20 tire is a radial built for a 20-inch rim, so the choice begins with matching the exact wheel diameter and keeping the correct size rather than substituting another Nautilus fitment.
From there, focus on how the vehicle is used and whether the wheels are still the original type. It is worth checking overall tire condition, any prior suspension changes, and whether a previous owner altered the wheel package. Keeping the correct size preserves the intended relationship between sidewall height and wheel diameter for that specific setup.
What should I consider when choosing a 245/60R18 tire for a 2019 Lincoln Trucks Nautilus?
A 245/60R18 tire should be chosen only for a 2019 Lincoln Trucks Nautilus equipped with the corresponding 18-inch wheel fitment, including Base models and some Select configurations. The size itself tells you it is a radial with a 245-millimeter nominal width and a 60-series profile, so the main goal is staying with the correct dimensions for that wheel package.
A practical check involves confirming the current wheels and making sure the vehicle has not been changed to a different trim-style setup. Crossovers often see wheel swaps, and a Select trim can overlap with another primary size. Matching the exact size on the proper rim helps maintain the tire's intended fitment without creating unnecessary clearance or mounting problems.
How do I choose between the available tire sizes for a 2019 Lincoln Trucks Nautilus?
The choice is not between three interchangeable tire sizes, because each 2019 Lincoln Trucks Nautilus fitment is tied to a specific wheel diameter and sub-model configuration. The correct path is choosing the one size that matches the vehicle's actual setup: 245/60R18, 245/50R20, or 265/40R21.
That makes verification more important than preference. Start with the trim, then confirm the wheel diameter and read the current tire sidewall to make sure the vehicle still carries the intended size. Once the correct fitment is established, replacement decisions become much simpler because you are comparing tires within the proper size instead of mixing unrelated wheel packages.
Restoration & Appearance
Does correct tire fitment matter for a 2019 Lincoln Trucks Nautilus restoration?
Yes, correct tire fitment still matters on a 2019 Lincoln Trucks Nautilus, even though it is a much newer luxury crossover than a traditional collector car. Using the proper 245/60R18, 245/50R20, or 265/40R21 size for the actual trim and wheel package keeps the vehicle visually proportioned the way that configuration was intended.
Appearance and fitment go together, especially on a model with multiple wheel diameters across the lineup. A misplaced size can change the relationship between sidewall height and wheel presentation, even before any handling or clearance issues are considered. Anyone aiming for an accurate preserved example should verify the wheel package first and avoid assuming all Nautilus trims used the same tire.
How does tire size affect the appearance of a 2019 Lincoln Trucks Nautilus?
Tire size has a visible effect on the 2019 Lincoln Trucks Nautilus because its 18-inch, 20-inch, and 21-inch fitments use different sidewall proportions. A 245/60R18 presents a taller sidewall look than a 245/50R20, while a 265/40R21 creates a lower-profile appearance around a larger wheel.
That matters when the goal is keeping the vehicle consistent with its original trim presentation. The right size helps the wheel opening, tire profile, and overall stance look balanced for that specific setup. Even on a modern luxury model, changing to the wrong fitment can make the vehicle look mismatched, so visual goals should start with the correct wheel diameter and tire size.
Fitment, Maintenance & Road Use
Can modifications affect tire fitment on a 2019 Lincoln Trucks Nautilus?
Yes, modifications can affect tire fitment on a 2019 Lincoln Trucks Nautilus. Wheel changes, suspension lowering, altered offsets, or even moving from one factory wheel package to another can change how a 245/60R18, 245/50R20, or 265/40R21 tire sits in the wheelwell and how much clearance it has during steering and suspension movement.
That is why the vehicle's current setup matters more than the trim name alone. A Reserve or Select may already have a different wheel package than it left with, and aftermarket wheels can complicate things further. Before replacing tires, confirm wheel diameter, inspect clearance around the suspension and fenders, and make sure the size being chosen matches the actual wheels on the vehicle.
What should I inspect before driving a 2019 Lincoln Trucks Nautilus on new tires?
Before driving a 2019 Lincoln Trucks Nautilus on new tires, inspect the wheel condition, verify the tire size against the actual wheel diameter, and make sure the tires are mounted and inflated correctly for the application. It is also smart to look over the suspension, alignment condition, and nearby components for anything that could affect wear or clearance.
A careful walkaround should also include checking for rubbing points, uneven old tire wear, visible damage, and any signs that the vehicle has been modified. Short initial drives can reveal vibration or clearance issues that are easier to correct early. On a vehicle with multiple possible fitments, confirming that the installed size matches the wheel package is especially important.
How often should tires on a 2019 Lincoln Trucks Nautilus be inspected?
Tires on a 2019 Lincoln Trucks Nautilus should be inspected regularly, not just when tread looks worn. Frequent checks for air loss, visible cuts, bulges, cracking, and uneven wear help catch problems early, especially on a luxury crossover where ride quality can hide the first signs of a developing tire issue.
Routine inspection matters even more if the vehicle is driven infrequently or stored for long periods. Low-use vehicles can still develop age-related condition problems, and incorrect inflation can affect both wear and road manners. Looking over the tires before longer trips and after seasonal temperature swings is a practical habit, particularly when the Nautilus uses a larger wheel and lower-profile fitment.
