Collection: Cadillac XT5 Replacement Rims

Cadillac introduced the XT5 for the 2017 model year as the replacement for the SRX, and it has remained on sale in the United States and Canada through the 2026 model year as a single generation on GM's C1XX platform. The wheel story is consistent in its numbers and busy in its styling. Every verified factory wheel is an 18x8 or a 20x8, every one carries ET50, and all share a six-lug 6x120 pattern. What changed over the decade was the design, the trim it belonged to, and how many choices Cadillac offered.

The figures here come from Cadillac and GM Authority equipment information, OEM wheel listings carrying Hollander interchange data, and wheel and tire databases used as a cross-check. GM service documentation could not be accessed, so widths and offsets rest on those OEM listings.

Cadillac XT5 Quick Specs

Cadillac XT5 OEM Wheel Sizes by Model Year

The 2017 XT5 launched in base, Luxury, Premium Luxury and Platinum form. The smaller wheel was an 18x8 with 235/65R18 tires, and the 20x8 with 235/55R20 tires sat above it. For the 2020 model year Cadillac refreshed the crossover and reorganized the lineup around Luxury, Premium Luxury and Sport. That facelift arrived for 2020, not 2019, and it did not change the wheel dimensions. It changed the designs and the trim logic, which is why a 2019 and a 2020 car can wear the same size and still need different wheels.

The launch cars also set the pattern for the whole run. Cadillac paired the 18x8 with the taller 235/65R18 tire and the 20x8 with a lower 235/55R20, and the two combinations have nearly the same overall diameter. By calculation the two tires differ in overall diameter by only about 4mm, roughly 763mm against 767mm, so the sizes were engineered as near equivalents. The 2020 update also retired the Platinum name, leaving the Sport as the top-performance trim alongside Luxury and Premium Luxury.

The 2020-2026 trim assignments for 2025 and 2026 come from Cadillac and GM Authority wheel availability tables. An OEM listing also ties an 18x8 wheel, option code Q6Y, to Premium Luxury for 2020 through 2023, so that trim did not always start on a 20-inch wheel. For 2017 through 2019 the 20-inch assignment for Platinum follows the 20-inch trims in database listings rather than a GM table, and should be read with that in mind.

Production status matters for anyone looking at later cars. GM first planned to end the XT5 after 2025, then extended it, and the 2026 model year was sold with the same 18x8 and 20x8 lineup. Reports in mid-2026 say production ends later this year, with a redesigned XT5 expected for the 2028 model year. No new wheel size is documented for the 2026 cars.

Cadillac XT5 Wheel Widths and Offsets

Width is the simplest part of the XT5. Every verified factory wheel is 8 inches wide, so the 18-inch and 20-inch wheels differ in diameter and tire sidewall, not in width. Every OEM listing checked also gives ET50, a positive offset, and database ranges of 48 to 52mm bracket that figure. The setup is square, with the same wheel and tire at the front and rear.

Some fitment databases list 19x8 and 20x8.5 wheels with 235/60R19, 255/55R19 and 255/50R20 tires. None of those sizes is marked as original equipment, and no OEM wheel listing matched them, so they are not treated as factory specifications here. Tire size alone would have suggested a wider 20-inch wheel. The OEM data does not support one.

That also rules out a staggered setup. Staggered means different widths or tire sizes front to rear, and the XT5 never used either. A Sport on 20x8 wheels is square in exactly the same way a Luxury on 18x8 wheels is. The difference between them is diameter and tire profile, not a change in how the wheel sits on the hub. Because every factory wheel uses ET50, a wheel moved between any two XT5 packages keeps the same position relative to the hub face.

Cadillac XT5 Bolt Pattern and Center Bore

The XT5 uses six lugs on a 120mm circle (6x120) with a 66.9mm center bore. Fitment databases list M14 x 1.5 lug hardware, though that thread figure was not confirmed against GM documentation. These values were consistent across every source checked and across all model years. The compact spare, listed by an OEM wheel seller as an 18x4.5 with the same six-lug 120mm pattern, is the only other factory wheel size on record. The pattern is shared with some other GM crossovers, and a few XT5 wheel designs are cross-listed with them, but the numbers in this guide come from XT5 listings.

Cadillac XT5 Trim and Factory Wheel Packages

The drivetrain did not change the wheels. Front-wheel-drive and all-wheel-drive cars used the same 18x8 and 20x8 wheels with the same tires, and the Sport's Twin Clutch all-wheel-drive system came with the 20x8 wheel, not a separate size. The differences are all in trim and design.

For 2025 and 2026 the Luxury rides on an 18x8 multi-spoke wheel in bright silver (Q6X). The Premium Luxury has a 20x8 6-split-spoke wheel (Q6R), and the Sport has a 20x8 12-spoke wheel in pearl nickel (Q71). A 20x8 gloss black wheel (S2K) is a dealer-installed option and part of the Onyx package. The 2024 car offered six designs, and 2025 trimmed that to five.

Design numbers help sort the years. The early 20x8 wheels (interchange 4801, 4802, 4803, 4808) belong to the 2017 through 2020 cars, and the six Y-spoke wheel (4835) covered 2020 and 2021 only. From 2021 the lineup moved to the 12-spoke family, with the charcoal machined 4870 for 2021 through 2025 and the Sport wheel (4881) starting in 2022. The 18x8 six double-spoke (4844) is the one design that spans nearly the whole facelift. Wheels in this family are 8 inches wide and ET50 in every OEM listing, so a design change never altered fitment. Finish is the main visible variable, with the listings showing silver, hyper silver, grey machined, charcoal machined, polished and black versions at the same dimensions.

Cadillac XT5 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:

Frequently Asked Questions

What size wheels come on a Cadillac XT5?

The standard Luxury uses 18x8 wheels with 235/65R18 tires, and the Premium Luxury and Sport use 20x8 wheels with 235/55R20 tires.

What is the XT5 bolt pattern?

Six lugs on a 120mm circle (6x120), with a 66.9mm center bore.

Do FWD and AWD XT5 models use different wheels?

No. The wheels and tires are the same on both drivetrains.

Are XT5 wheels staggered?

No. Front and rear use the same 8-inch width, offset and tire size, so the setup is square.

Did the 2020 facelift change the wheel size?

No. It changed designs and trim assignments, while the 18x8 and 20x8 dimensions and ET50 offset carried over.

Final Thoughts

The XT5 has two factory wheel sizes, 18x8 and 20x8, one offset, one bolt pattern, and one bore across its run. The real variation is in design and trim, which shifted at the 2020 facelift and again as the lineup narrowed through 2025 and 2026. Finish Line Wheels carries genuine OEM wheels for these applications.