The 2013 Lexus GS350 sits in the modern sport-luxury sedan category, blending the refinement expected from Lexus with a chassis and styling package that gave the fourth-generation GS a more athletic edge. Tire fitment on this model is entirely radial, but it is not a one-size-fits-all situation, because the GS350 uses 17-, 18-, and 19-inch sizes depending on sub-model and wheel setup. That means the real choice is less about vintage construction and more about matching the correct size to the car, then comparing available performance-oriented blackwall options from lines such as BFGoodrich g-Force and Nitto NT555 G2. Owners should confirm trim, driven axle layout, and wheel diameter before selecting tires.
Which Tire Size Is Right for The 2013 Lexus GS350
The 2013 Lexus GS350 uses four primary tire sizes, and they vary by sub-model and wheel package rather than sharing one universal fitment. Some versions use 17-inch or 18-inch tires, while F Sport models move to 19-inch fitments, including a staggered front and rear setup on the rear-wheel-drive car. Identifying the exact sub-model and confirming wheel diameter should come first before comparing tire lines.
In a size such as 225/50R17, 225 is the nominal section width in millimeters, 50 is the aspect ratio, R identifies radial construction, and 17 is the wheel diameter in inches. On the 2013 Lexus GS350, this modern radial size serves Base configurations equipped with 17-inch wheels. Available choices stay focused on blackwall performance tires, including BFGoodrich g-Force variants and the Nitto NT555 G2. This size is the right place to start if the car retains its 17-inch wheel setup and the goal is to compare tread character, load specification, and wheel-width compatibility within the proper fitment.
The 235/45R18 size uses a 235-millimeter nominal width, a 45-series profile, radial construction, and an 18-inch rim diameter. On the 2013 Lexus GS350, this is another Base-model fitment, so it applies only when that car is equipped with 18-inch wheels rather than the 17-inch package. Product choices in this size include BFGoodrich g-Force Comp 2 AS, g-Force Sport Comp 2, and g-Force Phenom T/A, all in blackwall form. It is a useful fitment for owners who want to stay with the correct 18-inch sizing while comparing all-season versus sport-oriented tire series.
A 235/40R19 tire combines a 235-millimeter nominal width with a lower 40-series profile and a 19-inch rim diameter, all in radial construction. On the 2013 Lexus GS350, this size is used on F Sport models, including the front position on the rear-wheel-drive staggered setup. The available product in this fitment is a blackwall BFGoodrich g-Force Phenom T/A, which keeps the choice straightforward once the 19-inch wheel package is confirmed. This size should be evaluated carefully on cars with F Sport wheels or any modified wheel package to make sure front clearance and intended positioning remain correct.
In 265/35R19, the 265 indicates a wider nominal section width, the 35 marks a lower-profile sidewall, R denotes radial construction, and 19 is the rim diameter in inches. On the 2013 Lexus GS350, this size belongs to the rear position of the F Sport rear-wheel-drive staggered arrangement rather than to every GS350. Choices include blackwall performance tires from BFGoodrich and Nitto across g-Force and NT555 G2 series. This fitment matters most when preserving the intended front-to-rear size relationship on the staggered F Sport setup and verifying that the rear wheels match the required width range.
Sub-model fitment on the 2013 Lexus GS350 is not uniform, because wheel diameter and tire size change across the Base and F Sport versions. Checking the exact trim and, on F Sport models, the axle position is important before comparing tires or replacing a single tire.
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2013 Lexus GS350 Base
The 2013 Lexus GS350 Base uses either a 225/50R17 or 235/45R18 radial tire, depending on the wheel package on the car. That makes wheel-diameter confirmation the key first step, followed by comparing blackwall performance tire options within the correct size.
The 2013 Lexus GS350 F Sport (AWD) uses a 235/40R19 radial tire. Tire selection here centers on confirming the 19-inch wheel setup and choosing the correct front-to-rear fitment without mixing in the wider rear size used on the rear-wheel-drive staggered arrangement.
The front position on the 2013 Lexus GS350 F Sport (RWD) uses a 235/40R19 radial tire. This means the front axle should be matched to the correct 19-inch front size rather than treated as interchangeable with the wider rear tire.
The rear position on the 2013 Lexus GS350 F Sport (RWD) uses a 265/35R19 radial tire. That wider rear fitment is part of the staggered setup, so replacement should account for axle position, wheel width, and the need to preserve the intended front-to-rear sizing balance.
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.
Best 2013 Lexus GS350 Tires for Sale
Available 2013 Lexus GS350 tires focus on modern radial blackwall performance fitments in 17-, 18-, and 19-inch sizes. Buyers can compare BFGoodrich and Nitto options across g-Force Comp 2 AS, g-Force Sport Comp 2, g-Force Phenom T/A, and NT555 G2 series, with some sizes also showing different rim-width and load specifications.
Common questions for the 2013 Lexus GS350 usually come down to exact tire size by sub-model, 17- versus 18-inch Base fitment, the 19-inch F Sport setup, and how to compare available performance tire options before road use.
Tire Size & Fitment
What tire size fits a 2013 Lexus GS350?
The 2013 Lexus GS350 uses several tire sizes rather than one universal fitment. Base models use either 225/50R17 or 235/45R18, the GS350 F Sport (AWD) uses 235/40R19, and the GS350 F Sport (RWD) uses a staggered setup with 235/40R19 in front and 265/35R19 in the rear.
That means the first step is identifying the exact sub-model and then confirming the wheel diameter already on the car. On rear-wheel-drive F Sport models, front and rear positions are different, so tire ordering and rotation planning should account for axle location instead of treating all four corners as the same size.
What size rim does a 2013 Lexus GS350 use?
The 2013 Lexus GS350 uses 17-inch, 18-inch, and 19-inch rim diameters depending on the version of the car. Base models can use either 17-inch or 18-inch wheels, while F Sport fitments move to 19-inch wheels, including the staggered front and rear arrangement on the rear-wheel-drive model.
Wheel diameter should be confirmed before selecting tires because the GS350 does not share one common rim size across the entire model line. Checking the tire sidewall and verifying the wheel currently on the car is especially important if it has been changed from its original package or if a previous owner installed aftermarket wheels.
Why does the 2013 Lexus GS350 have more than one tire size?
The 2013 Lexus GS350 has more than one tire size because fitment changes with sub-model and wheel package. Base cars can be equipped with either 17-inch or 18-inch tire sizes, while F Sport models use 19-inch tires, and the rear-wheel-drive F Sport adds a wider rear tire for a staggered setup.
That variation means a buyer should not select tires by model name alone. Trim level, wheel diameter, and in some cases front-versus-rear position all matter. Looking at the existing sidewall size, confirming the exact sub-model, and checking whether the car has matching or staggered wheels will prevent costly mistakes.
Choosing the Right Tire
What should I consider when choosing a 2013 Lexus GS350 tire?
Start with the correct size for the exact GS350 configuration, because this model uses four different fitments across Base and F Sport versions. Once the proper size is confirmed, compare radial tire details such as tire series, load specification where shown, wheel-width suitability, and whether the car uses a square or staggered arrangement.
The next decision is matching the tire to how the car is used. A Base sedan on 17-inch or 18-inch wheels may call for a different balance of comfort and sport response than a 19-inch F Sport setup. Staying with the proper size and axle position matters more than choosing by brand name alone.
What sidewall styles are available for 2013 Lexus GS350 tires?
The available 2013 Lexus GS350 tire choices shown here use blackwall sidewalls across all four sizes. That keeps the appearance consistent whether the car uses 17-inch, 18-inch, or 19-inch fitments and places more emphasis on selecting the correct size and tire series than on choosing between multiple sidewall treatments.
For this GS350, appearance differences come more from wheel design and overall tire proportion than from sidewall decoration. Buyers comparing options should focus on matching the exact fitment, especially on staggered F Sport applications, and then review construction, load figures, and wheel-width compatibility instead of expecting whitewall or lettered-sidewall choices.
What brands offer tires for the 2013 Lexus GS350?
BFGoodrich and Nitto both offer tire options for the 2013 Lexus GS350 within the sizes used on this model. BFGoodrich appears across several g-Force series, including g-Force Comp 2 AS, g-Force Sport Comp 2, and g-Force Phenom T/A, while Nitto appears with the NT555 G2 in selected sizes.
Brand comparison should come after size confirmation, because not every size has the same depth of choice. The 235/40R19 front F Sport size is narrower in product variety than some of the 17-inch, 18-inch, or 265/35R19 options, so buyers should compare by exact fitment, series type, and wheel compatibility rather than assuming every line is offered in every GS350 size.
Restoration & Appearance
Does correct tire fitment matter for a 2013 Lexus GS350 restoration or refurbishment?
Yes. Even though the 2013 Lexus GS350 is a modern luxury sport sedan rather than an early collector car, correct tire fitment still matters when refreshing the car properly. The right size preserves the intended relationship between wheel diameter, sidewall profile, and the overall look of Base and F Sport configurations.
Appearance also depends on keeping the correct setup for the exact version of the car. A Base model on 17-inch or 18-inch wheels presents differently from a 19-inch F Sport, and the rear-wheel-drive F Sport relies on its staggered sizing to maintain the proper front-to-rear visual balance. Verifying what is on the car now is the smart first step.
How does tire size affect the appearance of a 2013 Lexus GS350?
Tire size has a strong effect on how a 2013 Lexus GS350 sits and presents, because this model uses noticeably different wheel and sidewall proportions across its fitments. A 225/50R17 or 235/45R18 Base setup carries a different visual character than the lower-profile 235/40R19 and 265/35R19 tires used on F Sport models.
That makes it important to keep the correct size for the trim and wheel package rather than choosing by approximate dimensions alone. On the rear-wheel-drive F Sport, the wider 265/35R19 rear tire is also part of the car's stance, so replacing it with a non-matching size can change both appearance and fitment balance.
Fitment, Maintenance & Road Use
Can modifications affect tire fitment on a 2013 Lexus GS350?
Yes. Modifications can change tire fitment on a 2013 Lexus GS350 even when the tire size looks close on paper. Aftermarket wheels, altered wheel width, offset changes, suspension lowering, or body modifications can all influence clearance, especially on the 19-inch F Sport applications and the staggered rear-wheel-drive setup.
A modified GS350 should be checked at full steering lock and through suspension travel before assuming a tire choice is suitable. Wheel diameter, axle position, and available space at the fender and inner suspension area all matter. That is particularly important when replacing only one pair of tires on a staggered car.
What should I inspect before driving a 2013 Lexus GS350 on new tires?
Before driving a 2013 Lexus GS350 on new tires, confirm that each tire matches the correct size for the car and, if applicable, the correct front or rear position. It is also smart to inspect wheel condition, valve stems, inflation pressure, and the basic mounting direction and seating of the tire on the rim.
A quick walkaround should also include checking for rubbing, adequate fender clearance, and even spacing side to side. On a car that has been sitting, inspect suspension components and alignment wear as well, because uneven wear patterns or weak components can shorten tire life quickly even when the correct size has been installed.
How often should tires on a 2013 Lexus GS350 be inspected?
Tires on a 2013 Lexus GS350 should be inspected regularly, especially if the car is driven infrequently or stored for long periods. Check for air loss, irregular tread wear, cuts, bulges, and sidewall cracking, and pay close attention to the rear tires on staggered F Sport models because front-to-rear rotation is more limited.
Routine inspections are also a good time to confirm that the car is still wearing a matched set in the proper sizes. A GS350 with mixed replacements from different times can end up with the wrong tire at one corner, particularly on cars with multiple wheel packages or aftermarket wheels. Catching those issues early helps preserve both handling and tire life.
