The 2010 Lexus Trucks RX350 sits in the early luxury-crossover era, blending Lexus comfort and refinement with the everyday usefulness that made the RX a mainstay for family, commuter, and long-distance driving. Buyers looking after one today are often balancing original-style road manners with the realities of replacement tire availability and wheel configuration. This exact model uses radial tires in two metric sizes, 235/60R18 and 235/55R19, so the first step is confirming which wheel diameter is on the vehicle. From there, the decision becomes less about vintage construction and more about selecting the correct size for the wheel, then matching the tire to the vehicle's intended use and appearance.
Which Tire Size Is Right for The 2010 Lexus Trucks RX350
The 2010 Lexus Trucks RX350 uses two primary tire sizes, and both are radial metric fitments. The key difference is wheel diameter, since one size fits an 18-inch rim and the other fits a 19-inch rim. Because both AWD and FWD versions can use either size, the most important first step is confirming the actual wheel setup on the vehicle before choosing a tire.
235/55R19 is a metric radial size in which 235 identifies nominal section width in millimeters, 55 is the aspect ratio, R denotes radial construction, and 19 is the rim diameter in inches. On the 2010 Lexus Trucks RX350, this size belongs to vehicles equipped with 19-inch wheels rather than the alternate 18-inch setup. Its sizing format is familiar to modern replacement buyers and makes wheel confirmation especially important before purchase. This is the size to evaluate when the RX350 already wears 19-inch rims and you want to preserve the intended diameter relationship for that wheel package.
235/60R18 is also a metric radial size, with 235 representing nominal section width in millimeters, 60 identifying the aspect ratio, R indicating radial construction, and 18 showing the wheel diameter in inches. For the 2010 Lexus Trucks RX350, this size applies to vehicles using the 18-inch wheel configuration. It carries nearly the same section width as the 19-inch alternative, but it is not the same fitment because the rim diameter changes. This is the right size to consider only after confirming that the vehicle has 18-inch wheels in place.
Fitment is straightforward in one sense and configuration-sensitive in another, because both AWD and FWD versions of the 2010 Lexus Trucks RX350 can use the same two tire sizes. Checking the exact sub-model still matters, but wheel diameter remains the main detail to confirm before selecting a tire.
1
2010 Lexus Trucks RX350 (AWD)
The 2010 Lexus Trucks RX350 (AWD) can use either of the two primary radial sizes used on this model line, depending on whether it has 18-inch or 19-inch wheels. Tire selection starts with verifying the wheel diameter, then choosing the matching metric radial size for the vehicle's actual setup.
The 2010 Lexus Trucks RX350 (FWD) follows the same fitment pattern as the AWD version, with both primary radial sizes applying according to wheel package. That means the practical decision is not drivetrain-related so much as confirming whether the vehicle wears 18-inch or 19-inch rims before replacing the tires.
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 2010 Lexus Trucks RX350 usually need clear answers on tire size, wheel diameter, AWD versus FWD fitment, and what to inspect before putting the vehicle back into regular road use. These FAQs focus on the practical details that matter most when choosing tires for this exact model.
Tire Size & Fitment
What tire size fits a 2010 Lexus Trucks RX350?
The 2010 Lexus Trucks RX350 uses two primary tire sizes: 235/60R18 and 235/55R19. Both are radial metric sizes, and both appear on this model in AWD and FWD form. The difference between them is the wheel diameter, not a change from radial to bias-ply or a special sub-model-only construction type.
Choosing the right one starts with the wheels actually on the vehicle. An RX350 equipped with 18-inch rims needs 235/60R18, while one equipped with 19-inch rims needs 235/55R19. If aftermarket wheels have been installed, verify the wheel diameter and tire markings directly rather than relying only on trim or drivetrain assumptions.
What size rim does a 2010 Lexus Trucks RX350 use?
A 2010 Lexus Trucks RX350 uses either an 18-inch or 19-inch rim, depending on which tire size is on the vehicle. The 235/60R18 tire fits an 18-inch rim, and the 235/55R19 tire fits a 19-inch rim. Both wheel diameters are part of the normal fitment range for this model.
That makes wheel confirmation the first fitment check before replacing tires. The rim diameter is built into the tire size itself, so the final number in the size code should match the wheel. A vehicle that has changed wheels over time can easily differ from expectation, so checking the tire sidewall and wheel setup in person helps avoid ordering the wrong size.
Do all 2010 Lexus Trucks RX350 sub-models use the same tire size?
AWD and FWD versions of the 2010 Lexus Trucks RX350 can both use the same two tire sizes: 235/60R18 and 235/55R19. In that sense, fitment is shared across the covered sub-models rather than split by drivetrain. The deciding factor is the wheel package on the specific vehicle, not simply whether it is front-wheel drive or all-wheel drive.
That is why checking the actual wheel diameter matters more than assuming a size from the badge on the liftgate. One RX350 may wear 18-inch wheels while another wears 19-inch wheels, even within the same drivetrain. Matching the tire to the wheel that is physically on the vehicle is the practical way to get the fitment decision right.
Choosing the Right Tire
What should I consider when choosing a tire for a 2010 Lexus Trucks RX350?
Start with the correct primary size for the wheel on the vehicle: 235/60R18 for 18-inch rims or 235/55R19 for 19-inch rims. Both sizes are radial metric fitments for the 2010 Lexus Trucks RX350, so the central decision is not construction type but proper sizing and wheel match.
Once the size is confirmed, compare the tire to how the RX350 is used. A vehicle that sees regular highway miles, local commuting, or mostly occasional use may lead to different replacement priorities. It also helps to inspect current tire wear, verify that all four wheels match, and check whether the vehicle still has its original wheel setup.
How do I choose between the available 2010 Lexus Trucks RX350 tire sizes?
The two sizes are not alternatives to mix casually on the same wheel. A 2010 Lexus Trucks RX350 with 18-inch rims uses 235/60R18, while one with 19-inch rims uses 235/55R19. Each size is tied to its own wheel diameter, so the correct choice depends on the actual rim size already installed on the vehicle.
A quick look at the sidewall or wheel diameter usually settles the question. The two sizes have very similar overall diameter figures, but the rim fitment is different, which is what matters most at the selection stage. Vehicles with replacement wheels or prior owner changes should always be checked directly instead of assumed to follow a standard configuration.
What rim-fitment details matter when choosing 2010 Lexus Trucks RX350 tires?
The most important rim-fitment detail is diameter. On the 2010 Lexus Trucks RX350, 235/60R18 belongs on an 18-inch rim and 235/55R19 belongs on a 19-inch rim. Using the right diameter match is fundamental because the tire bead and wheel must be built for the same rim size.
Beyond diameter, it is wise to confirm that the wheels on the vehicle are the ones you expect, especially if the RX350 has changed hands or has been modified. Uneven tire wear, non-matching wheels, or prior suspension changes can affect how a replacement tire behaves, even when the basic size appears correct on paper.
Restoration & Appearance
Does correct tire fitment matter for a 2010 Lexus Trucks RX350 restoration?
Correct tire fitment still matters on a 2010 Lexus Trucks RX350, even though this is a modern radial-fitment vehicle rather than a vintage bias-ply application. Staying with the proper size for the wheel helps preserve the intended relationship between tire diameter, wheel appearance, and overall stance. For this model, that means matching either 235/60R18 or 235/55R19 to the correct rim diameter.
A restoration-minded owner should verify whether the vehicle still wears its expected wheel package before replacing tires. If originality is important, the safest path is to compare the current setup with vehicle-specific reference material and then choose a tire that keeps the same sizing format and wheel fitment rather than improvising with a near-match.
How does tire construction affect the appearance of a restored 2010 Lexus Trucks RX350?
On a 2010 Lexus Trucks RX350, construction is less of an appearance divide than it would be on an older collector vehicle, because the primary fitments are already radial. The visual effect comes more from maintaining the correct metric size and matching it to the proper 18-inch or 19-inch wheel than from choosing between radically different construction styles.
For a clean, restoration-oriented presentation, focus on preserving the wheel-and-tire proportion the vehicle was built around. An incorrect rim diameter or an improvised size can change how the crossover sits and fills the wheel opening. Keeping the correct radial size for the installed wheel usually does more for the finished look than chasing a substitute size.
Fitment, Maintenance & Road Use
Can modifications affect tire fitment on a 2010 Lexus Trucks RX350?
Yes. A 2010 Lexus Trucks RX350 may have room-related or fitment-related changes if it has aftermarket wheels, altered suspension height, or nonstandard wheel offsets. Even though the primary sizes are 235/60R18 and 235/55R19, those modifications can change how much clearance exists at the fender, suspension, or steering components.
That is why a modified RX350 should be checked as it sits, not just matched to the original size range. Wheel diameter is still the first item to confirm, but wheel width, offset, and suspension condition can matter as well. Any signs of rubbing, uneven wear, or steering interference should be addressed before regular road use.
What should I inspect before driving a 2010 Lexus Trucks RX350 on new tires?
Inspect the wheels, valve stems, and current tire size first, then confirm that the replacement tires match the vehicle's actual 18-inch or 19-inch wheel setup. It is also smart to look over tread wear on the old tires, since unusual wear patterns can point to alignment or suspension issues that will affect the new set as well.
A road-ready check should also include inflation pressure, visible cracking, cuts, bulges, and any sign of air loss. The RX350's steering and suspension should feel stable and free of obvious looseness. Catching those issues early helps the new tires wear more evenly and makes the vehicle more predictable once it is back on the road.
How often should tires on a 2010 Lexus Trucks RX350 be inspected?
Tires on a 2010 Lexus Trucks RX350 should be inspected regularly, especially if the vehicle is driven infrequently or sits for long periods. A routine visual check for air loss, tread wear, cracking, cuts, or bulges is worthwhile even when mileage stays low. Low-use vehicles can age their tires without showing much tread wear.
Inspection matters just as much before longer trips as it does during normal ownership. It helps to check the size markings, confirm that all four tires remain matched to the wheel setup, and make sure inflation is consistent. Storage conditions also matter, since prolonged sunlight, heat, and moisture can shorten tire life on vehicles that are not driven often.
