2009 Cadillac STS Bolt Pattern
Checking fitment for your vehicle? Below you will find the factory bolt pattern (also known as the lug pattern) for the 2009 Cadillac STS, along with offset and center bore data.
| Bolt Pattern (Lug Pattern) | 5x115 |
|---|---|
| Lug Nut / Bolt Size | N 14x1.50 |
| Center Bore (CB) | 71.6 mm |
| Offset (ET) | 42 |
| Torque Specs | 100 ft-lbs (135 Nm) |
2009 STS — Year-Specific Fitment Context
The 2009 Cadillac STS is in year 5 of 7 using the 5x115 pattern (2005–2011). Wheels from any 2005–2011 Cadillac STS are cross-compatible with the 2009 model.
Cadillac STS Bolt Pattern by Year
The table below shows how the STS's wheel specifications have changed over the years. The 2009 model year is highlighted.
Fitment Notes
The 2009 Cadillac STS 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 STS appears from 2005 to 2011 (7 model years).
Across recorded model years, this model generally keeps the same bolt pattern.
- Observed bolt-pattern variants for this model: 1
- Observed center-bore variants for this model: 2
- Observed lug-size variants for this model: 2
- Observed total offset span across years: 0.0 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:
2009 Cadillac STS — Frequently Asked Questions
What is the bolt pattern for a 2009 Cadillac STS?
The 2009 Cadillac STS uses a 5x115 bolt pattern (also called lug pattern or PCD). The center bore is 71.6mm and the offset is 42mm.
What other years of Cadillac STS have the same bolt pattern as the 2009?
The Cadillac STS uses the 5x115 pattern from 2005 through 2011. Wheels from any of these model years are dimensionally compatible with the 2009, provided the offset and center bore also match.
What does 42mm offset mean for the 2009 STS?
An offset of 42mm means the wheel's mounting surface is 42mm 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 2009 Cadillac STS?
Refer to your owner's manual for exact specs, but always tighten the N 14x1.50 hardware in a star or crisscross pattern. Re-torque after the first 50 miles of driving.
How do I measure the bolt pattern on my 2009 Cadillac?
The 2009 STS uses a 5x115 pattern. For 4, 6, or 8-lug wheels, measure center-to-center across opposite holes. For 5-lug, measure from the center of one hole to the back of the opposite hole.
Do 2009 Cadillac STSs use lug bolts or lug nuts?
The 2009 STS requires N 14x1.50 hardware. Check your specific trim to ensure you use the correct conical or spherical seating.
Fitment Checklist Before You Buy Wheels
- Torque lugs in a star pattern to 100 ft-lbs (135 Nm), then re-check torque after 50-100 km (30-60 miles).
Editorial Fitment Notes
Cadillac STS is generally consistent in bolt-pattern records across model years, but offset and hardware should still be validated before purchase.
- Observed production years in our database: 2005-2011 (7 model years).
- Observed bolt-pattern variants: 1 (5x115).
- Observed total offset span across years: 0.0 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 2009 Cadillac STS, please report it via our About page contact so we can verify and update this record.