The 2022 Mercedes-Benz Trucks GLS63 AMG blends full-size luxury SUV comfort with the aggressive stance and power expected from an AMG flagship. On a vehicle like this, tire selection is less about choosing one universal size and more about matching the exact wheel package and axle position already on the truck. The GLS63 AMG uses staggered radial fitments in 21-inch, 22-inch, or 23-inch combinations, with different front and rear sizes depending on the setup. That makes wheel diameter, front-versus-rear sizing, and overall appearance all part of the decision. Owners replacing tires should start by confirming the exact wheel option before comparing construction, dimensions, and road-use priorities.
Which Tire Size Is Right for The 2022 Mercedes-Benz Trucks GLS63 AMG
The 2022 Mercedes-Benz Trucks GLS63 AMG uses six primary tire sizes across three staggered wheel packages, so the first step is identifying the exact setup on the vehicle. Rim diameter matters immediately here, since this model uses 21-inch, 22-inch, and 23-inch wheels, and each package pairs a different front tire with a different rear tire.
285/45R22 is a metric radial size in which 285 identifies the nominal section width in millimeters, 45 is the aspect ratio, and 22 is the rim diameter in inches. On the 2022 Mercedes-Benz Trucks GLS63 AMG, this size serves as the front tire for the 22-inch option and is part of a staggered setup rather than a four-corner fitment. Its dimensions place it in the larger-diameter performance SUV category, so replacement decisions should stay focused on the correct 22-inch front application. Start by confirming that the vehicle is equipped with the 22-inch wheel package and that the front axle has not been changed from stock sizing.
325/40R22 is a metric radial size where 325 is the nominal section width in millimeters, 40 is the aspect ratio, and 22 indicates a 22-inch rim. This is the rear tire size for the 22-inch GLS63 AMG package, giving the vehicle its staggered front-to-rear fitment rather than using the same size at all four corners. The width is substantially greater than the matching front tire, so position on the vehicle matters just as much as wheel diameter. Tire replacement in this size should begin with rear-axle confirmation and a check that the truck still uses the original-style 22-inch staggered arrangement.
285/40R23 is a metric radial size with a 285-millimeter nominal section width, a 40-series profile, and a 23-inch rim diameter. On the 2022 Mercedes-Benz Trucks GLS63 AMG, this size is used at the front when the truck is equipped with the 23-inch wheel option. It works as part of a staggered high-diameter package, so it should be evaluated together with the matching rear size rather than as a standalone all-position tire. Buyers considering this size should verify that the vehicle actually has the 23-inch setup and compare front tire dimensions carefully if aftermarket wheels or suspension changes are involved.
325/35R23 is a metric radial size in which the 325-millimeter nominal width is paired with a 35-series profile on a 23-inch wheel. This size is used on the rear of the 23-inch GLS63 AMG package, making it the widest and lowest-profile primary fitment used on this vehicle. That combination gives the rear setup a very specific visual and dimensional role, so proper placement is critical during replacement. Before selecting a tire in this size, confirm the truck still carries its 23-inch staggered wheel package and check rear clearance closely if the vehicle has been lowered or otherwise modified.
275/50R21 is a metric radial tire size where 275 is the nominal section width in millimeters, 50 is the aspect ratio, and 21 designates the wheel diameter in inches. On the 2022 Mercedes-Benz Trucks GLS63 AMG, this is the front tire size for the base staggered 21-inch setup. Its dimensions differ from the 22-inch and 23-inch packages, so it should be treated as part of a distinct wheel-and-tire combination rather than mixed casually with the other fitments. Owners should confirm that the vehicle is using the standard 21-inch arrangement and that the front wheels remain matched to the correct rear size.
315/45R21 is a metric radial tire size with a 315-millimeter nominal section width, a 45-series profile, and a 21-inch rim diameter. This size belongs on the rear of the base 21-inch GLS63 AMG setup, completing the staggered combination with the 275/50R21 front tire. The wider rear sizing is a key part of the fitment, so replacement should account for tire position instead of focusing only on wheel diameter. A buyer looking at this size should verify rear axle placement, keep the 21-inch package together as intended, and review wheel width and clearance if any non-original wheels are on the vehicle.
Sub-model fitment on the 2022 Mercedes-Benz Trucks GLS63 AMG is defined by wheel package and axle position rather than by one universal tire size. Checking whether the truck has the base 21-inch setup, the 22-inch option, or the 23-inch option is essential before selecting front or rear tires.
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2022 Mercedes-Benz Trucks GLS63 AMG (22 Inch Option) Front
The 22-inch option uses a dedicated front radial tire size and forms part of a staggered setup with a different rear tire. Tire selection here should stay focused on the front axle and the 22-inch wheel package rather than treating the size as interchangeable across the whole vehicle.
2022 Mercedes-Benz Trucks GLS63 AMG (22 Inch Option) Rear
The rear position on the 22-inch option uses its own wider radial tire size to complete the staggered fitment. Choosing a replacement means confirming rear-axle placement and maintaining the correct relationship with the matching 22-inch front tire.
2022 Mercedes-Benz Trucks GLS63 AMG (23 Inch Option) Front
The 23-inch option front fitment uses a lower-profile radial size than the 21-inch and 22-inch packages. Buyers should confirm that the truck is actually equipped with the 23-inch wheels and keep the front tire matched to the corresponding rear size for that package.
2022 Mercedes-Benz Trucks GLS63 AMG (23 Inch Option) Rear
The rear tire for the 23-inch option is a distinct radial size with a very wide footprint and short sidewall. That makes wheel confirmation and rear clearance checks especially important if the vehicle has aftermarket wheels, suspension changes, or prior tire substitutions.
The base GLS63 AMG front fitment uses the 21-inch radial setup rather than the larger optional wheel packages. Replacement choices should begin with confirming the standard 21-inch arrangement and preserving the proper front-to-rear stagger.
The base rear fitment uses its own wider 21-inch radial tire size to complete the factory-style staggered setup. Tire selection should account for rear position, matching wheel diameter, and any wheel-width or suspension changes that could affect fitment.
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 2022 Mercedes-Benz Trucks GLS63 AMG usually center on staggered tire sizing, front-versus-rear fitment, wheel-package differences, and what to inspect before replacing tires on a high-performance luxury SUV.
Tire Size & Fitment
What tire size fits a 2022 Mercedes-Benz Trucks GLS63 AMG?
The 2022 Mercedes-Benz Trucks GLS63 AMG does not use one universal tire size. It uses staggered radial fitments in three wheel-package combinations: 275/50R21 front with 315/45R21 rear, 285/45R22 front with 325/40R22 rear, or 285/40R23 front with 325/35R23 rear.
That means the right tire depends on both wheel diameter and axle position. A front tire and rear tire are not the same size, and a 21-inch setup should not be confused with the 22-inch or 23-inch packages. Checking the wheel size already on the vehicle is the first step before comparing any replacement tire.
What size rim does a 2022 Mercedes-Benz Trucks GLS63 AMG use?
The 2022 Mercedes-Benz Trucks GLS63 AMG uses 21-inch, 22-inch, or 23-inch rims depending on the wheel package. The base setup uses 21-inch wheels, the optional staggered package uses 22-inch wheels, and another optional staggered package uses 23-inch wheels.
Rim diameter is the key fitment checkpoint on this vehicle because each tire size is tied to a specific wheel size. Once the rim diameter is confirmed, the next step is making sure the tire is going to the correct axle position, since the front and rear sizes are different on every GLS63 AMG package.
Why does the 2022 Mercedes-Benz Trucks GLS63 AMG have more than one tire size?
The 2022 Mercedes-Benz Trucks GLS63 AMG has more than one tire size because it uses staggered front and rear fitments, and it was offered with multiple wheel packages. Each package combines a specific front size with a specific rear size, and those combinations change with 21-inch, 22-inch, or 23-inch wheels.
This matters because replacement should follow the package already on the truck, not just the model name. Two GLS63 AMG vehicles can need different tires if they have different wheel options. The safest approach is to confirm the current wheel diameter and check whether the tire being replaced is mounted on the front or rear axle.
Choosing the Right Tire
What should I consider when choosing a tire for a 2022 Mercedes-Benz Trucks GLS63 AMG?
Start with the exact wheel package and axle position. The 2022 Mercedes-Benz Trucks GLS63 AMG uses only radial tires, but it does so in staggered 21-inch, 22-inch, or 23-inch combinations, so the correct front size and matching rear size matter more than the model name alone.
After size is confirmed, compare the tire's overall dimensions against the intended position on the vehicle and make sure the wheel diameter matches exactly. It also helps to check whether the truck still has its original-style wheels and suspension, since aftermarket changes can affect clearance and make an otherwise correct size less straightforward to replace.
How do I choose between the available 2022 Mercedes-Benz Trucks GLS63 AMG tire sizes?
You do not choose among the six sizes as if they are interchangeable options for the same wheel. Each size belongs to a specific front or rear position within one of three staggered packages: base 21-inch, 22-inch option, or 23-inch option.
The practical choice is really about matching the truck's existing setup. Check the wheel diameter first, then identify whether the tire is for the front or rear axle. Once that is established, compare replacement tires within that exact size rather than moving across package sizes that were intended for different wheel diameters and positions.
How do I choose between the available front and rear tires for a 2022 Mercedes-Benz Trucks GLS63 AMG?
Front and rear tire choice on a 2022 Mercedes-Benz Trucks GLS63 AMG begins with staying inside the correct staggered pair. Each wheel package uses a narrower front tire and a wider rear tire, so the vehicle should be matched by axle position instead of using one size all around.
A useful way to approach replacement is to inspect all four tires before ordering anything. Verify whether the vehicle still has a complete matched package, check for uneven wear that might point to alignment or suspension issues, and make sure the wheel size on the truck matches the intended front and rear tire sizes exactly.
Fitment, Maintenance & Road Use
Can modifications affect tire fitment on a 2022 Mercedes-Benz Trucks GLS63 AMG?
Yes. Wheel changes, altered offsets, suspension lowering, alignment changes, and body modifications can all affect tire fitment on a 2022 Mercedes-Benz Trucks GLS63 AMG. That matters even more on this model because it uses wide staggered tires and multiple wheel diameters, so small setup differences can influence clearance.
A truck that still uses stock-size tires may not behave the same way if the wheels have changed in width or position. Checking inner clearance, fender clearance, and steering clearance before replacement helps avoid surprises. Any GLS63 AMG with aftermarket wheels should be measured carefully rather than assuming the original package dimensions still apply.
What should I inspect before driving a 2022 Mercedes-Benz Trucks GLS63 AMG on new tires?
Inspect the wheel size, confirm the tire is mounted in the correct front or rear position, and check the condition of the wheels, valve stems, and suspension components. It also makes sense to review alignment condition, since a high-performance SUV with staggered tires can show wear quickly if something is out of spec.
After installation, look for proper clearance at full steering lock and under normal suspension compression. Tire pressure should be set correctly, and the first drives should include a brief follow-up inspection for rubbing, vibration, or irregular seating. Catching those issues early is especially important on wide 21-inch, 22-inch, and 23-inch GLS63 AMG fitments.
What should I check before a longer drive in a 2022 Mercedes-Benz Trucks GLS63 AMG?
Before a longer drive, check tire pressure, tread condition, sidewalls, and any signs of cuts, bulges, or air loss. On a 2022 Mercedes-Benz Trucks GLS63 AMG, it is also wise to confirm that the front and rear tires are the correct sizes for the wheel package, since this model depends on a proper staggered setup.
Longer trips place more heat and load into the tires, so a quick walk-around before departure can prevent problems that may not show up on short local drives. Pay attention to uneven wear and any rubbing marks near the shoulders, especially if the SUV has non-original wheels or has recently had suspension or alignment work.
