2018 Cadillac CT6 Base Wheels & Rims
Fitment shared across: Base, Luxury, Platinum, Plug-In, Premium Luxury
Shop Wheels for 2018 Cadillac CT6 Base
Showing 8 of 8+ wheels compatible with the 2018 Cadillac CT6
The 2018 Cadillac CT6 Base and its Luxury, Platinum, Plug-In, and Premium Luxury counterparts all share the same 5x120 bolt pattern. Your CT6 came equipped with an 18x8 wheel from the factory, and we carry premium replacements from trusted brands including Heritage Wheel, Work Wheels, OHM, Aodhan, Petrol, KATANA RACING, Niche 1PC, and Enkei. Every wheel we offer is verified to bolt on properly.
Whether you prefer to stick with eighteen-inch diameter or step up to nineteen, twenty, or twenty-two-inch options, you'll find compatible fitments here. Available widths range from 7.5 to 8.5 inches depending on your chosen size, giving you flexibility to match your driving style and aesthetic vision. All wheels ship free to the lower 48 states.
2018 Cadillac CT6 Base Wheel Fitment Guide — What Works & What to Avoid
Your 2018 Cadillac CT6 Base uses a 5x120 bolt pattern shared across all trims. The stock setup is an 18x8 wheel at 48mm offset. You can step up to 19- or 20-inch sizes, or go as large as 22 inches, with widths ranging from 7.5 to 8.5 inches depending on diameter. Since this model runs a square setup, staggered and non-staggered options are both available to you.
Keep in mind that only the 5x120 bolt pattern will fit your CT6. A 66.9mm hub-centric bore is standard, so if your chosen wheel has a larger center bore, use hub-centric rings to ensure a proper fit. Aggressive offsets or very wide wheels risk contacting the fender or suspension components, so stay within the compatible range listed above to avoid costly clearance issues.
Every wheel we offer for your CT6 is verified to bolt on and ships free throughout the lower 48 states. Heritage Wheel, Work Wheels, OHM, Aodhan, Petrol, KATANA RACING, Niche 1PC, and Enkei are all in stock and ready to ship.
2018 Cadillac CT6 Base Wheel Fitment Specifications
The 5x120 bolt pattern determines which wheels physically bolt onto your car, while the 66.9mm center bore ensures a hub-centric fit. The factory equips this car with 18x8 wheels at a +48 offset.
Lug Type
nut
Thread Size
M14x1.5
Torque Spec
111 ft-lbs
TPMS
Yes
2018 Cadillac CT6 Base Compatible Wheel Sizes
| Wheel Size | Offset Range | Compatible Tires | Notes |
|---|---|---|---|
| 18x7.5 | +35 to +40 | 235/50R18 | — |
| 19x7.5 | +35 to +49 | 235/45R19 | — |
| 18x8 | +35 to +40 | 235/50R18 | — |
| 19x8 | +35 to +40 | 235/45R19, 245/45R19 | — |
| 20x8 | +30 to +38 | 245/40R20 | — |
| 22x8 | +35 to +49 | 245/30R22 | — |
| 18x8.5 | +35 to +40 | 235/50R18 | — |
| 19x8.5 | +35 to +40 | 235/45R19, 245/45R19 | — |
| 20x8.5 | +30 to +38 | 245/40R20 | — |
Best Wheel Brands for the Cadillac CT6
- BBS — LM, FI, CI-R
- Rohana — RFX5, RFX11
- Work Wheels — Meister, Varianza
- Rotiform — FLG, OZR
- Heritage Wheel — Bushido, Kokoro
- TSW
Complete Your 2018 Cadillac CT6 Base Build
- Cadillac CT6 suspension — pairs well with a wheel upgrade
- Cadillac CT6 brakes — pairs well with a wheel upgrade
- Wheel & tire packages — pre-mounted, balanced, shipped ready to bolt on
- Installation accessories — hub rings, extended studs, TPMS kits, spacers