2009 Pontiac G3 Bolt Pattern
Checking fitment for your vehicle? Below you will find the factory bolt pattern (also known as the lug pattern) for the 2009 Pontiac G3, along with offset and center bore data.
| Bolt Pattern (Lug Pattern) | 4x100 |
|---|---|
| Lug Nut / Bolt Size | M12x1.5 |
| Center Bore (CB) | 56.6 mm |
| Offset (ET) | 35-45mm |
| Torque Specs | 80 ft-lbs (108 Nm) |
2009 G3 — Year-Specific Fitment Context
The 2009 model year marks the beginning of the Pontiac G3's 4x100 bolt pattern era, which continued through 2010 (2 consecutive years). Wheels from any 2009–2010 Pontiac G3 are cross-compatible with the 2009 model.
Pontiac G3 Bolt Pattern by Year
The table below shows how the G3's wheel specifications have changed over the years. The 2009 model year is highlighted.
| Year | Bolt Pattern | Center Bore | Offset |
|---|---|---|---|
| ▸ 2009 | 4x100 | 56.6 | 35-45mm |
| 2010 | 4x100 | 56.6 | 35-45mm |
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 Pontiac G3
When selecting wheels for your 2009 Pontiac G3, the 4x100 bolt pattern is standard, but the 56.6mm center bore is critical. Aftermarket wheels often have a larger bore (e.g., 73.1mm), requiring hub-centric rings to prevent vibration and ensure proper load distribution. Offset must stay within 35-45mm; deviations risk rubbing or poor handling. Always use M12x1.5 lug nuts with the correct seat type (cone or ball) matching your wheels—mismatched seats can cause loosening or damage. Verify lug nut length to avoid bottoming out. For safety, re-torque after 50-100 miles and periodically thereafter.
Historical Fitment Data Reference
In our dataset, Pontiac G3 appears from 2009 to 2010 (2 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: 80.0 mm
Quick Tips & Safety Warnings
- ✅ Re-torque lug nuts to 80-90 ft-lbs after 50-100 miles of driving.
- ✅ Avoid using universal fit wheels without hub-centric rings; they can cause vibration and stress on studs.
- ✅ Check that aftermarket wheels clear the brake calipers and suspension components, especially with lower offsets.
- ⚠️ Verify thread pitch before installation; M12x1.25 and M12x1.5 are not interchangeable.
- ⚠️ This fitment uses a wide offset range. Check brake clearance and fender clearance before buying wheels.
- ⚠️ 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 Pontiac G3 — Frequently Asked Questions
What is the bolt pattern for a 2009 Pontiac G3?
The 2009 Pontiac G3 uses a 4x100 bolt pattern (also called lug pattern or PCD). The center bore is 56.6mm and the offset is 35-45mmmm.
What other years of Pontiac G3 have the same bolt pattern as the 2009?
The Pontiac G3 uses the 4x100 pattern from 2009 through 2010. Wheels from any of these model years are dimensionally compatible with the 2009, provided the offset and center bore also match.
What is the center bore of a 2009 Pontiac G3?
The factory center bore (hub bore) for the 2009 Pontiac G3 is 56.6mm. If your aftermarket wheels have a larger hub bore, you will need hub-centric rings to prevent vibration.
Can I use spacers on my 2009 Pontiac G3?
Yes, but ensure the wheel spacers match the 4x100 bolt pattern and 56.6mm center bore. Also verify that you have enough thread engagement for your M12x1.5 hardware.
Do 2009 Pontiac G3s use lug bolts or lug nuts?
The 2009 G3 requires M12x1.5 hardware. Check your specific trim to ensure you use the correct conical or spherical seating.
Why is matching the 56.6mm center bore important for the 2009 G3?
The 56.6mm 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.
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