Collection: Cadillac XT4 OEM Wheels

The Cadillac XT4 was Cadillac's first compact crossover, sold in the United States and Canada for the 2019 through 2025 model years on a single generation. Across those seven years the factory wheel specifications barely moved while the designs changed a great deal. An 18-inch wheel was standard and a 20-inch wheel was optional throughout, but the finishes, spoke patterns, and trim pairings were reworked when the XT4 was refreshed for 2024.

Cadillac introduced the XT4 in 2018 as a 2019 model, slotting it below the XT5 as the brand's entry crossover. It was built on GM's E2 architecture and assembled in Kansas City, Kansas, and its trims stayed the same three names through most of the run. The wheel story is less about new sizes than about which designs went with which trim and year.

The XT4 also does not share wheel dimensions with every Cadillac that looks related on paper. Shared GM architecture is not the same as shared wheel fitment, so the figures below come from XT4 factory wheel records only. This guide covers North American XT4 wheels: diameter, width, offset, tire size, and which trims and years each design belongs to.

Cadillac XT4 Quick Specs

Cadillac XT4 OEM Wheel Sizes by Model Year

The XT4 launched for 2019 in Luxury, Premium Luxury, and Sport trims, with front-wheel-drive and all-wheel-drive versions. Two wheel sizes covered the whole run, and the factory setup is square: the same wheel and tire size sits at all four corners.

2019-2023

Before the refresh, the standard wheel was an 18x8 in a 10-spoke design, finished in hyper silver, grey machined, or silver paint, with 235/60R18 tires. The optional 20x8.5 wheel took 245/45R20 tires and came in several styles: a 9-spoke grey machined wheel, a 7 Y-spoke wheel in polished or smoked hyper finish, and a 10-spoke grey machined wheel. A black-painted 7 Y-spoke 20x8.5 was added for 2021 through 2023.

2024-2025

The 2024 refresh brought new wheel designs without changing dimensions. The 18x8 returned in a 15-spoke design, silver on the Luxury and hyper-grey on the Premium Luxury, alongside a 10-spoke charcoal machined version. Optional 20x8.5 wheels included 10-spoke polished and bronze designs, and the 2025 model year added gloss black and matte black with red accent versions. Two other 20x8.5 designs, a 21-spoke grey machined wheel and a 10-spoke charcoal machined wheel, were also offered, but offset was not verified for those two in the available sources.

Cadillac XT4 Wheel Widths and Offsets

Width follows diameter on the XT4: 8 inches on the 18-inch wheel and 8.5 inches on the 20-inch wheel. Every documented factory wheel in both sizes, and in both the 2019-2023 and 2024-2025 designs, carries a 37mm positive offset (ET37). There is no second offset to separate by trim or model year, so diameter and width are the details that distinguish one XT4 wheel from another.

The two tire sizes were chosen to keep the overall rolling diameter close. The 235/60R18 measures about 29.1 inches in diameter and the 245/45R20 about 28.7 inches, so moving between the two wheel sizes changes the tire's overall height by less than half an inch. The 20x8.5 simply pairs a wider wheel with a lower-profile tire.

Because the setup is square, there are no separate front and rear wheel dimensions to track. The tire size lists for 2019 through 2025 show the same size on both axles for each wheel diameter.

Cadillac XT4 Bolt Pattern and Center Bore

The XT4 uses a 5x120mm bolt pattern with a 66.9mm center bore and M14x1.5 lug thread, unchanged from 2019 through 2025. These figures come from factory wheel part records and cross-checked wheel databases, and they should be read as XT4 specifications rather than as a general Cadillac or GM rule. Other GM compacts have been listed with different bolt patterns and bores, and a wheel that matches on bolt pattern still has to match on center bore, width, and offset to count as a true factory fit.

Cadillac XT4 Trim and Factory Wheel Packages

The XT4 was sold in three trims, Luxury, Premium Luxury, and Sport, and all three were listed with the same two tire sizes, 235/60R18 and 245/45R20, for every model year from 2019 through 2025. Cadillac's own 2023 literature highlighted the 20-inch wheels for the Premium Luxury and Sport. In practice that means the 18x8 is the base wheel across the lineup and the 20x8.5 is the upgrade, with the specific design depending on trim and option package.

Drivetrain made no difference to wheel fitment. Front-wheel-drive and all-wheel-drive XT4s used the same wheels and the same tires, and the tire size records for matching trims are identical across both.

Wheel changes across the run came in small steps. The 2019 and 2020 model years launched with the original 18-inch and 20-inch designs. A black-painted 20-inch 7 Y-spoke arrived for 2021, and 2023 brought only minor updates elsewhere. The 2024 refresh then swapped in new designs at both sizes, and 2025 added black 20-inch options while carrying over the 2024 wheels. At no point did a diameter, width, or offset change, so differences between model years are about style and finish rather than fitment dimensions.

Two lifecycle changes matter for wheel identification. The 2024 refresh replaced the earlier designs with new 15-spoke and 10-spoke 18-inch wheels and new 20-inch finishes. The Luxury trim was then dropped for 2025, leaving Premium Luxury and Sport for the final year. XT4 production in North America ended in January 2025 at GM's Fairfax plant in Kansas City, Kansas, and Cadillac has no direct replacement, though the electric Optiq has been described as an indirect one. The XT4 continues to be built for the Chinese market, and the specifications in this guide apply to North American cars only.

Cadillac XT4 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 XT4 Wheel FAQ

What size wheels does the Cadillac XT4 have?

The standard wheel is an 18x8 with 235/60R18 tires. The optional wheel is a 20x8.5 with 245/45R20 tires. Both were offered from 2019 through 2025.

What is the bolt pattern on the Cadillac XT4?

The XT4 uses a 5x120mm bolt pattern with a 66.9mm center bore and M14x1.5 lug thread.

Do FWD and AWD XT4s use different wheels?

No. Both drivetrains used the same wheel sizes, offset, and tire sizes.

What was the last model year of the Cadillac XT4 in North America?

The 2025 model year was the last. Production ended in January 2025, and the Luxury trim had already been dropped for that year.

Final Thoughts

The XT4 is an easy Cadillac to identify wheel by wheel once the pattern is clear: 5x120mm bolt pattern, 66.9mm center bore, ET37 on every documented wheel, 18x8 as the standard size and 20x8.5 as the optional one. What changes is the design, which depends on the model year, the trim, and the 2024 refresh. For a damaged factory wheel, Finish Line Wheels offers genuine OEM replacements matched to the original specification, and the tables above are the reference for confirming which size and design belong to which XT4.