2003 Cadillac CTS Bolt Pattern
Checking fitment for your vehicle? Below you will find the factory bolt pattern (also known as the lug pattern) for the 2003 Cadillac CTS, along with offset and center bore data.
| Bolt Pattern (Lug Pattern) | 5x115 |
|---|---|
| Lug Nut / Bolt Size | N 12x1.50 |
| Center Bore (CB) | 70.3 mm |
| Offset (ET) | 46 |
| Torque Specs | 80 ft-lbs (108 Nm) |
2003 CTS — Year-Specific Fitment Context
The 2003 model year marks the beginning of the Cadillac CTS's 5x115 bolt pattern era, which continued through 2008 (6 consecutive years). Wheels from any 2003–2008 Cadillac CTS are cross-compatible with the 2003 model. Across its full production run (2003–2019), the CTS has also used: 5x120.65.
Cadillac CTS Bolt Pattern by Year
The table below shows how the CTS's wheel specifications have changed over the years. The 2003 model year is highlighted.
| Year | Bolt Pattern | Center Bore | Offset |
|---|---|---|---|
| ▸ 2003 | 5x115 | 70.3 | 46 |
| 2004 | 5x115 | 70.3 | 46 |
| 2005 | 5x115 | 70.3 | 46 |
| 2006 | 5x115 | 70.3 | 46 |
| 2007 | 5x115 | 70.3 | 46 |
| 2008 | 5x115 | 70.3 | 46 |
| 2009 | 5x120.65 | 67.1 | 50 |
| 2010 | 5x120.65 | 67.1 | 50 |
| 2011 | 5x120.65 | 67.1 | 50 |
| 2012 | 5x120.65 | 67.1 | 50 |
| 2013 | 5x120.65 | 67.1 | 50 |
| 2014 | 5x120.65 | 67.1 | 50 |
| 2015 | 5x120.65 | 67.1 | 32 |
| 2016 | 5x120.65 | 67.1 | 32 |
| 2017 | 5x120.65 | 67.1 | 32 |
| 2018 | 5x120.65 | 67.1 | 24 |
| 2019 | 5x120.65 | 67.1 | 24 |
Fitment Notes
The 2003 Cadillac CTS has a bolt pattern of 5x115.
This means it is a 5 lug pattern with a circle diameter of 115mm. When shopping for aftermarket wheels, ensure the "lug pattern" or "PCD" matches these numbers.
Year-to-Year Fitment Context
In our dataset, Cadillac CTS appears from 2003 to 2019 (17 model years).
Across model years, this model appears with 2 bolt patterns (5x115, 5x120.65).
- Observed bolt-pattern variants for this model: 2
- Observed center-bore variants for this model: 2
- Observed lug-size variants for this model: 2
- Observed total offset span across years: 26.0 mm
5x115 Pattern Context
This bolt pattern appears on 498 vehicles in our current database and is considered moderately common.
Examples of other vehicles using 5x115:
2003 Cadillac CTS — Frequently Asked Questions
What is the bolt pattern for a 2003 Cadillac CTS?
The 2003 Cadillac CTS uses a 5x115 bolt pattern (also called lug pattern or PCD). The center bore is 70.3mm and the offset is 46mm.
What other years of Cadillac CTS have the same bolt pattern as the 2003?
The Cadillac CTS uses the 5x115 pattern from 2003 through 2008. Wheels from any of these model years are dimensionally compatible with the 2003, provided the offset and center bore also match.
What does 46mm offset mean for the 2003 CTS?
An offset of 46mm means the wheel's mounting surface is 46mm away from its centerline. Changing this value drastically can affect suspension geometry and wheel bearing wear on your Cadillac.
How tight should I torque the lug nuts on a 2003 Cadillac CTS?
Refer to your owner's manual for exact specs, but always tighten the N 12x1.50 hardware in a star or crisscross pattern. Re-torque after the first 50 miles of driving.
Will wheels from another Cadillac fit my 2003 CTS?
Only if they share the exact same 5x115 bolt pattern, a compatible offset, and a center bore equal to or larger than 70.3mm.
Can I put aftermarket wheels on my 2003 Cadillac CTS?
Absolutely. Just ensure the aftermarket wheels have a 5x115 bolt pattern, an offset near 46mm, and a center bore of at least 70.3mm (using hub rings if larger).
Fitment Checklist Before You Buy Wheels
- Verify thread pitch before installation; M12x1.25 and M12x1.5 are not interchangeable.
- Torque lugs in a star pattern to 80 ft-lbs (108 Nm), then re-check torque after 50-100 km (30-60 miles).
- This model has multiple bolt-pattern records across years. Match wheels to exact year/trim before purchase.
Editorial Fitment Notes
Cadillac CTS has multiple wheel-fitment records across generations, so matching exact year and trim is important before ordering wheels.
- Observed production years in our database: 2003-2019 (17 model years).
- Observed bolt-pattern variants: 2 (5x115, 5x120.65).
- Observed total offset span across years: 26.0 mm.
- Observed center-bore variants: 2 | lug-size variants: 2.
Data Quality & Review
Source note: Compiled from manufacturer fitment references, historical wheel data, and internal normalization rules.
Last reviewed: 2026-05-26 | Reviewed by: Bolt Pattern HQ Editorial Team
If you find a discrepancy for 2003 Cadillac CTS, please report it via our About page contact so we can verify and update this record.