Collection: Cadillac XT6 OEM Wheels

The Cadillac XT6 is the three-row crossover that sits above the XT5 in Cadillac's lineup, sold in North America from the 2020 model year through 2025. It was built on GM's C1XX platform and had a single generation, so there is no redesign to sort wheels by.

What changed instead were the factory wheel packages: an 18-inch wheel on the entry Luxury trim, 20-inch wheels as the standard fitment on Premium Luxury and Sport, and 21-inch wheels as a paid option whose trim availability moved around in 2022. This guide covers the U.S. and Canadian XT6 only, with full wheel dimensions and offsets where they could be confirmed.

Cadillac XT6 Quick Specs

Cadillac XT6 OEM Wheel Sizes by Model Year

The XT6 uses a square setup, meaning the same wheel and tire size on all four corners, so no separate front and rear specifications apply. The table below lists each documented factory wheel application. Figures marked not verified could not be confirmed to a reliable standard and are left open rather than estimated. Diameter steps map cleanly to tire size: the 18-inch wheel takes a 235/65R18, every 20-inch wheel takes a 235/55R20, and both 21-inch wheels take a 265/45R21, so the tire sidewall shrinks noticeably as the wheel grows.

Wheel-package documentation from GM Authority runs through the 2024 model year. Tire sizes listed for 2025 match the earlier years, and no new factory wheel for 2025 turned up in the sources reviewed.

Cadillac XT6 Wheel Widths and Offsets

Two factory wheels have confirmed full dimensions. The 20-inch wheels on Premium Luxury, in both the standard 6-split spoke and the optional fully polished 12-spoke design, are 20x8. The 21-inch 12-split spoke wheel is 21x8.5 with a documented offset of ET55.5, paired with a 265/45R21 tire.

Width and offset for the 18-inch Luxury wheel, the Sport 20-inch wheel, and the 2022 multi-spoke 21-inch wheel were not confirmed. A matching diameter does not guarantee a matching width or offset, so those wheels are not assumed to share the dimensions of the wheels above. The offset range shown in Quick Specs reflects only the one confirmed value.

Cadillac XT6 Bolt Pattern and Center Bore

Every XT6 sold in North America uses a 6x120 bolt pattern, a 66.9mm center bore, and M14x1.5 lug hardware, with no change between 2020 and 2025. The six-lug layout is worth noting because some wheel listings for the XT6 describe a five-lug pattern. Those listings reflect the smaller XT4 or the XT5 and do not match XT6 lug hardware, which GM sells in six-nut sets. These specifications also should not be carried over from the XT4, XT5, or Chevrolet Traverse, GMC Acadia, and Buick Enclave. Shared architecture does not mean shared wheels, and each of those models has to be checked on its own.

Cadillac XT6 Trim and Factory Wheel Packages

2020: Premium Luxury and Sport

The XT6 launched with only two trims. Premium Luxury rode on 20-inch polished wheels, while Sport used a 20-inch diamond cut design. A 21x8.5 wheel was available on Sport. No Luxury trim existed yet, and the XT6 was never sold as a separate Platinum trim.

2021: Luxury Added

For 2021 Cadillac completed its three-trim lineup by adding the Luxury, which introduced the 18-inch multi-spoke wheel with a bright silver finish and the 235/65R18 tire. Sport received a new 20-inch design, the 12-spoke diamond cut wheel with dark Android satin pockets. Premium Luxury gained an optional fully polished 20-inch 12-spoke wheel.

2022: The 21-Inch Reshuffle

This was the biggest wheel change of the XT6's run. GM added a new 21-inch multi-spoke wheel as a Sport-only option on 265/45R21 tires, priced at $1,200. The older 21-inch 12-split spoke wheel, previously a Sport option, moved to Premium Luxury only. That is why the same 21x8.5 wheel appears on Sport for 2020 and 2021 and on Premium Luxury from 2022.

2023 to 2025

The factory lineup held steady. Luxury kept its 18-inch standard wheel with a 20-inch option, and Premium Luxury and Sport each kept 20-inch standard wheels with a 21-inch option. The chrome 20-inch accessory wheel could no longer be ordered after May 2023. Cadillac sold the XT6 through the 2025 model year, and its electric Vistiq is listed as the successor.

FWD and AWD

Wheel specifications do not change with the drivetrain. Luxury and Premium Luxury come with front-wheel drive and offer AWD, while Sport comes standard with all-wheel drive. The wheel and tire packages follow the trim, not the driveline.

Factory Wheel Designs and Finishes

Each trim has its own look, which helps when matching a replacement. The Luxury 18-inch wheel is a multi-spoke design in bright silver, and the Luxury also carries an 18-inch spare. The Premium Luxury standard wheel is a 6-split spoke in a polished finish with Android-colored pockets, while its optional fully polished wheel uses a 12-spoke pattern. The Sport's standard wheel is a 12-spoke diamond cut design with dark Android satin pockets, a darker and more aggressive look than the Premium Luxury wheels. Both 21-inch wheels are diamond cut, one in a 12-split spoke design with an Android finish and the other, added for 2022, in a multi-spoke design with dark Android pockets.

GM also offered a 20-inch gloss black wheel as a dealer-installed LPO item on all three trims, and a 20-inch chrome version on Premium Luxury and Sport that was discontinued in May 2023. Neither is documented here with a width or offset, so they are listed for identification only.

Cadillac XT6 OEM vs. Replica Wheels

Some drivers choose replica wheels for their similar appearance or price. If your goal is to replace a damaged factory wheel, a genuine OEM wheel offers the best path to the correct fit, finish, and overall appearance, without the extra research replica shopping usually requires. We offer genuine OEM at replica price levels, often less. Here's how the two options typically compare:

Cadillac XT6 Wheel FAQ

What size wheels does the Cadillac XT6 have?

Factory wheels are 18-inch on Luxury, 20-inch standard on Premium Luxury and Sport, and an optional 21-inch on Premium Luxury and Sport. Confirmed full dimensions are 20x8 and 21x8.5.

What is the bolt pattern on the Cadillac XT6?

6x120 with a 66.9mm center bore and M14x1.5 lug thread, for every model year from 2020 to 2025.

Which XT6 trims offered 21-inch wheels?

Sport offered a 21-inch wheel from 2020, and Premium Luxury added one from 2022. The Luxury trim topped out at 20 inches as an option.

Is the Cadillac XT6 a staggered setup?

No. The XT6 uses the same wheel and tire size at all four corners, and the tire sizes listed for each trim are identical front and rear.

When did Cadillac stop selling the XT6?

The 2025 model year was the last for the North American XT6. Wheel packages stayed consistent through that final year.

Final Thoughts

The XT6 is a simple car to identify wheels for once you know its trim: 18-inch for Luxury, 20-inch for Premium Luxury and Sport, and 21-inch where optioned. The 2022 shuffle of the 21-inch wheels is the one detail that affects which trim a given wheel came from. If you need a replacement for a damaged factory wheel, Finish Line Wheels can help match the correct design and finish for your XT6.