Collection: Cadillac ATS Replacement Rims

The Cadillac ATS was Cadillac's compact sport sedan, the first vehicle built on General Motors' Alpha platform. Production began in July 2012 for the 2013 model year, and the car was sold in the United States, Canada, and Mexico before the CT4 replaced it for 2020. A two-door coupe joined the sedan for 2015, and the high-performance ATS-V arrived for 2016.

That spread of body styles, trims, and performance levels means the ATS does not have one factory wheel. It has three distinct families: a 17x8 setup on most early and entry-level cars, an 18-inch setup that is square on some trims and staggered on others, and a separate ATS-V setup that uses a different bolt pattern entirely. This guide covers North American factory specifications for each.

Cadillac ATS Quick Specs

How ATS Factory Wheels Changed Over the Model Run

The earliest cars, built on what fitment databases label GM Alpha I, launched with the 17x8 wheel and a 225/45R17 tire on the 2.5L and 2.0L turbo cars. The 18-inch wheels arrived as the Premium package, and once the coupe and the GM Alpha II update arrived for 2015, the same 18x8 front and 18x9 rear pair were offered on both body styles. The 10-spoke 17x8 wheel appeared on Luxury cars for 2017 and 2018, replacing the earlier 7-spoke design, which means the diameter and width stayed the same while the wheel style changed.

The ATS-V added a separate branch in 2016. Its 18x9 and 18x9.5 wheels are wider than anything on the standard car, and the bolt pattern moved from 5x115 to 5x120. The sedan ATS-V ended after 2018, while the coupe continued through 2019, the final ATS model year.

Cadillac ATS OEM Wheel Sizes by Model Year

Wheel fitment on the ATS tracks trim and wheel package more than model year. The 17x8 wheel carried the base, Luxury, and Performance trims for most of the run, while the 18-inch wheels were standard on Premium and optional on the trims below it. Where a value could not be confirmed against a factory-sourced listing, it is marked as not verified rather than estimated.

Cadillac ATS Sedan and Coupe Wheel Fitment

The sedan and coupe share the same bolt pattern, center bore, and the same 17x8 and 18x8 wheel designs, and the same 10-spoke 18x8 front wheel is listed for both body styles from 2015 through 2019. Where they diverge is in the 18-inch staggered package. The 18x9 rear wheel is listed as standard on the Coupe Premium collection and optional on the Luxury and Performance collections for 2015 through 2019, and a 2017 Carbon Black package used the same wheel in a dark hypersilver finish.

Because the coupe's rear track is wider than the sedan's, owner reports describe different rear offsets between the two body styles on the ATS-V. Those figures come from a single owner thread, so they are not listed here as factory specifications. The practical point is that sedan and coupe rear wheels should not be treated as automatic substitutes for one another.

Drivetrain matters less than many buyers expect. RWD and AWD cars share the same bolt pattern and center bore, and the 18x8 square setup is the one most often paired with AWD Premium models. The staggered 18x8 front and 18x9 rear setup is the typical Premium RWD arrangement.

Cadillac ATS Wheel Widths, Offsets and Tire Sizes

The standard ATS runs one of three tire families. The 17x8 wheel takes a 225/45R17. The 18x8 wheel takes a 225/40R18, and when paired with the 18x9 rear wheel on Premium RWD cars, the rear tire is a 255/35R18. That makes the Premium RWD car a true staggered setup, with a wider rear tire and wheel than the front. The front and rear wheels cannot be rotated, which matters when ordering a single replacement.

Offset is the least consistently documented part of the ATS lineup. The 17x8 wheel is listed at ET42 on 2013 through 2016 cars, and the 18x8 front wheel is also listed at ET42. A 2013 listing for the 3.6L V6 shows a different 17x8 offset (ET32) with a 245/50R17 tire, but that value is not supported by the factory-wheel listings checked for later years, so it is left out. The offset for the 18x9 rear wheel was not confirmed from a reliable listing and is not given.

Cadillac ATS Bolt Pattern and Center Bore

Every standard ATS, sedan or coupe, RWD or AWD, uses a 5x115 bolt pattern with a 70.3mm center bore and an M12 x 1.5 thread. That did not change between the GM Alpha I years (2013 to 2014) and the GM Alpha II years (2015 to 2019). Some general-purpose references suggest a smaller 66.9mm bore on early cars, but the fitment databases and factory-wheel listings that break the ATS out by year all show 70.3mm, so that figure is used here.

The ATS-V is the exception. It uses a 5x120 bolt pattern with a 66.9mm center bore, which is the pattern also found on other Alpha-platform performance cars. A 5x115 wheel will not seat on a 5x120 hub, and the reverse is also true, so standard ATS and ATS-V wheels are not interchangeable in either direction.

Cadillac ATS-V Factory Wheel Fitment

The ATS-V was offered as a sedan for 2016 through 2018 and as a coupe for 2016 through 2019. Both were rear-wheel drive and both used a turbocharged 3.6-liter V6 and the Brembo brake package. Its factory wheel setup is staggered and is treated here as its own application.

The ATS-V wheel is a 10-spoke design offered in a dark hypersilver finish and a polished finish. Standard ATS wheels cannot be used on an ATS-V because of the bolt pattern, and ATS-V wheels cannot be used on a standard ATS for the same reason.

Cadillac ATS 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:

On a car with a staggered package, front and rear wheels are different parts, so a single damaged wheel needs a replacement for the correct position. Finish Line Wheels can help match a replacement to the ATS trim and wheel package.

Frequently Asked Questions

What bolt pattern does the Cadillac ATS use?

Standard ATS models use 5x115 with a 70.3mm center bore. The ATS-V uses 5x120 with a 66.9mm center bore.

Are ATS and ATS-V wheels interchangeable?

No. The bolt patterns are different, so wheels from one will not seat on the other.

What size are the staggered ATS wheels?

On Premium RWD cars the setup is 18x8 in front and 18x9 in the rear. On the ATS-V it is 18x9 in front and 18x9.5 in the rear.

Did the ATS bolt pattern change between model years?

No. The standard ATS kept the same 5x115 pattern and 70.3mm center bore from 2013 through 2019.

Final Thoughts

The ATS is simpler than it first looks. Every standard car uses 5x115 and a 70.3mm bore, so the real questions are width and position: a 17x8 on most early cars, an 18x8 square on AWD Premium models, and a staggered 18x8 and 18x9 pair on Premium RWD cars. The ATS-V sits apart with its 5x120 pattern and its 18x9 and 18x9.5 wheels. Matching the trim, the wheel position, and the full diameter and width is what keeps a replacement factory-correct.