2005 Buick Century Bolt Pattern
Checking fitment for your vehicle? Below you will find the factory bolt pattern (also known as the lug pattern) for the 2005 Buick Century, 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) | 45 |
| Torque Specs | 80 ft-lbs (108 Nm) |
2005 Century — Year-Specific Fitment Context
The 2005 model year is the final year of the Buick Century's 5x115 bolt pattern run (since 1992). Wheels from any 1992–2005 Buick Century are cross-compatible with the 2005 model.
Buick Century Bolt Pattern by Year
The table below shows how the Century's wheel specifications have changed over the years. The 2005 model year is highlighted.
| Year | Bolt Pattern | Center Bore | Offset |
|---|---|---|---|
| 1992 | 5x115 | 70.3 | 45 |
| 1993 | 5x115 | 70.3 | 45 |
| 1994 | 5x115 | 70.3 | 45 |
| 1995 | 5x115 | 70.3 | 45 |
| 1996 | 5x115 | 70.3 | 45 |
| 1997 | 5x115 | 70.3 | 45 |
| 1998 | 5x115 | 70.3 | 45 |
| 1999 | 5x115 | 70.3 | 45 |
| 2000 | 5x115 | 70.3 | 45 |
| 2001 | 5x115 | 70.3 | 45 |
| 2002 | 5x115 | 70.3 | 45 |
| 2003 | 5x115 | 70.3 | 45 |
| 2004 | 5x115 | 70.3 | 45 |
| ▸ 2005 | 5x115 | 70.3 | 45 |
Fitment Notes
The 2005 Buick Century 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, Buick Century appears from 1992 to 2005 (14 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: 1
- Observed lug-size variants for this model: 1
- 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:
2005 Buick Century — Frequently Asked Questions
What is the bolt pattern for a 2005 Buick Century?
The 2005 Buick Century uses a 5x115 bolt pattern (also called lug pattern or PCD). The center bore is 70.3mm and the offset is 45mm.
What other years of Buick Century have the same bolt pattern as the 2005?
The Buick Century uses the 5x115 pattern from 1992 through 2005. Wheels from any of these model years are dimensionally compatible with the 2005, provided the offset and center bore also match.
How tight should I torque the lug nuts on a 2005 Buick Century?
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.
What lug nut size does the 2005 Buick Century use?
The 2005 Buick Century uses N 12x1.50 lug nuts. Always verify the thread pitch and seat type (cone, ball, or flat) match your aftermarket wheels.
Will wheels from another Buick fit my 2005 Century?
Only if they share the exact same 5x115 bolt pattern, a compatible offset, and a center bore equal to or larger than 70.3mm.
Why is matching the 70.3mm center bore important for the 2005 Century?
The 70.3mm center bore ensures the wheel is perfectly centered on the hub. If the wheel is lug-centric instead of hub-centric, you may experience steering wheel vibration at highway speeds.
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).
Editorial Fitment Notes
Buick Century 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: 1992-2005 (14 model years).
- Observed bolt-pattern variants: 1 (5x115).
- Observed total offset span across years: 0.0 mm.
- Observed center-bore variants: 1 | lug-size variants: 1.
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 2005 Buick Century, please report it via our About page contact so we can verify and update this record.