2009 Chevrolet Cobalt Bolt Pattern
Checking fitment for your vehicle? Below you will find the factory bolt pattern (also known as the lug pattern) for the 2009 Chevrolet Cobalt, along with offset and center bore data.
| Bolt Pattern (Lug Pattern) | 4x100 |
|---|---|
| Lug Nut / Bolt Size | N 12x1.50 |
| Center Bore (CB) | 57.1 mm |
| Offset (ET) | 40 |
| Torque Specs | 80 ft-lbs (108 Nm) |
2009 Cobalt — Year-Specific Fitment Context
The 2009 Chevrolet Cobalt is in year 5 of 6 using the 4x100 pattern (2005–2010). Wheels from any 2005–2010 Chevrolet Cobalt are cross-compatible with the 2009 model.
Chevrolet Cobalt Bolt Pattern by Year
The table below shows how the Cobalt's wheel specifications have changed over the years. The 2009 model year is highlighted.
4x100 Pattern Context
This bolt pattern appears on 461 vehicles in our current database and is considered moderately common.
Examples of other vehicles using 4x100:
Expert Buying Guide for 2009 Chevrolet Cobalt
The 2009 Chevrolet Cobalt uses a 4x100 bolt pattern with a 57.1mm center bore and 40mm offset. When selecting aftermarket wheels, ensure the center bore matches or use hub-centric rings to prevent vibrations. The offset is sensitive; deviations beyond ±5mm may cause rubbing or clearance issues. Always verify lug nut thread pitch (12x1.50) and seat type (cone or ball) to avoid wheel loosening. Re-torque after 50 miles of driving. Avoid universal fit wheels without proper hub rings.
Historical Fitment Data Reference
In our dataset, Chevrolet Cobalt appears from 2005 to 2010 (6 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
Quick Tips & Safety Warnings
- ✅ Re-torque lug nuts to 100 ft-lbs after 50 miles.
- ✅ Use hub-centric rings if aftermarket wheels have a larger bore than 57.1mm.
- ✅ Check for caliper clearance when using wheels with offset below 35mm.
- ⚠️ 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).
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2009 Chevrolet Cobalt — Frequently Asked Questions
What is the bolt pattern for a 2009 Chevrolet Cobalt?
The 2009 Chevrolet Cobalt uses a 4x100 bolt pattern (also called lug pattern or PCD). The center bore is 57.1mm and the offset is 40mm.
What other years of Chevrolet Cobalt have the same bolt pattern as the 2009?
The Chevrolet Cobalt uses the 4x100 pattern from 2005 through 2010. Wheels from any of these model years are dimensionally compatible with the 2009, provided the offset and center bore also match.
Do 2009 Chevrolet Cobalts use lug bolts or lug nuts?
The 2009 Cobalt requires N 12x1.50 hardware. Check your specific trim to ensure you use the correct conical or spherical seating.
Why is matching the 57.1mm center bore important for the 2009 Cobalt?
The 57.1mm 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.
What is the factory wheel offset for a 2009 Chevrolet Cobalt?
The OEM offset for the 2009 Cobalt is typically around 40mm. Depending on wheel width, a deviation of ±5mm is usually acceptable, but verify suspension clearance.
Can I put aftermarket wheels on my 2009 Chevrolet Cobalt?
Absolutely. Just ensure the aftermarket wheels have a 4x100 bolt pattern, an offset near 40mm, and a center bore of at least 57.1mm (using hub rings if larger).
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