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The Mercedes-Benz GLS 450 tire sizes are P275/45HR21 or P275/55HR19 as specified in our data below, organized by trim, option package, and model yearas specified in our data below, organized by trim, option package, and model year.
An example of a Mercedes-Benz GLS 450 tire size is the 2017 Mercedes-Benz GLS 450 Base Trim with P275/55HR19 tires.
Tire Codes Explained (Ex. P255/55VR17)
P - Denotes the tires intended use. (P = Passenger, LT = Light Truck, T = Temporary, ST = Special Trailer)
255 - Width of the tire tread in millimeters.
55 - Tire Profile. The ratio between the profile (sidewall) height and the width of the tire's tread. It is measured in percent. A lower number is a low profile tire and a higher number has a higher sidewall.
V - Speed Rating. ( ie. U = 125 mph, H = 130 mph, V = 149 mph ... etc)
R - Tire Construction. (R = Radial, B = Bias Belt, D = Diagonal)
17 - Rim (wheel) diameter in inches.
Check out the Tire Sizes specifications for other makes and models.
The 2027 Mercedes-Benz GLS 450 tire sizes are P275/45HR21 on the front and P315/40HR21 on the rear.
| Trim | Engine | Transmission | Drivetrain | Front Tire Size | Rear Tire Size |
|---|---|---|
| 4MATIC SUV | 3.0L | Turbo | Hybrid | 6 Cyl. | 9 Spd Auto w/OD | AWD | P275/45HR21 | P315/40HR21 |
The 2026 Mercedes-Benz GLS 450 tire sizes are P275/45HR21 on the front and P315/40HR21 on the rear.
| Trim | Engine | Transmission | Drivetrain | Front Tire Size | Rear Tire Size |
|---|---|---|
| 4MATIC SUV | 3.0L | Turbo | Hybrid | 6 Cyl. | 9 Spd Auto w/OD | AWD | P275/45HR21 | P315/40HR21 |
The 2025 Mercedes-Benz GLS 450 tire sizes are P275/45HR21 on the front and P315/40HR21 on the rear.
| Trim | Engine | Transmission | Drivetrain | Front Tire Size | Rear Tire Size |
|---|---|---|
| 4MATIC Hybrid | 3.0L | Turbo | 6 Cyl. | Hybrid | 9 Spd Auto w/OD | AWD | P275/45HR21 | P315/40HR21 |
The 2020 Mercedes-Benz GLS 450 tire size is P275/55HR19.
| Trim | Engine | Transmission | Drivetrain | Front Tire Size | Rear Tire Size |
|---|---|---|
| GLS 450 4MATIC SUV | 3.0L | Intercooled Turbo | I6 | 9 Spd Auto w/OD | AWD | P275/55HR19 | P275/55HR19 |
| Base SUV | 3.0L | Intercooled Turbo | I6 | 9 Spd Auto w/OD | AWD | P275/55HR19 | P275/55HR19 |
The 2019 Mercedes-Benz GLS 450 tire size is P275/55HR19.
| Trim | Engine | Transmission | Drivetrain | Front Tire Size | Rear Tire Size |
|---|---|---|
| GLS 450 4MATIC SUV | 3.0L | Twin Turbo | V6 | 9 Spd Auto w/OD | AWD | P275/55HR19 | P275/55HR19 |
| Base SUV | 3.0L | Twin Turbo | V6 | 9 Spd Auto w/OD | AWD | P275/55HR19 | P275/55HR19 |
The 2018 Mercedes-Benz GLS 450 tire size is P275/55HR19.
| Trim | Engine | Transmission | Drivetrain | Front Tire Size | Rear Tire Size |
|---|---|---|
| Base SUV | 3.0L | Twin Turbo | V6 | 9 Spd Auto w/OD | AWD | P275/55HR19 | P275/55HR19 |
The 2017 Mercedes-Benz GLS 450 tire size is P275/55HR19.
| Trim | Engine | Transmission | Drivetrain | Front Tire Size | Rear Tire Size |
|---|---|---|
| Base SUV | 3.0L | Twin Turbo | V6 | 9 Spd Auto w/OD | AWD | P275/55HR19 | P275/55HR19 |

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