2009 GMC Sierra 1500 Regular Cab Bolt Pattern
Checking fitment for your vehicle? Below you will find the factory bolt pattern (also known as the lug pattern) for the 2009 GMC Sierra 1500 Regular Cab, along with offset and center bore data.
| Bolt Pattern (Lug Pattern) | 6x139.7 (6x5.5") |
|---|---|
| Lug Nut / Bolt Size | 14x1.5 |
| Center Bore (CB) | 78.1 mm |
| Offset (ET) | 20-30 |
| Torque Specs | 100 ft-lbs (135 Nm) |
Imperial Match: 6x139.7 is commonly referred to as 6x5.5" in US Standard.
2009 Sierra 1500 Regular Cab — Year-Specific Fitment Context
The 2009 GMC Sierra 1500 Regular Cab is in year 11 of 26 using the 6x139.7 pattern (1999–2024). Wheels from any 1999–2024 GMC Sierra 1500 Regular Cab are cross-compatible with the 2009 model.
GMC Sierra 1500 Regular Cab Bolt Pattern by Year
The table below shows how the Sierra 1500 Regular Cab's wheel specifications have changed over the years. The 2009 model year is highlighted.
| Year | Bolt Pattern | Center Bore | Offset |
|---|---|---|---|
| 1999 | 6x139.7 | 78.1 | 20-30 |
| 2000 | 6x139.7 | 78.1 | 20-30 |
| 2001 | 6x139.7 | 78.1 | 20-30 |
| 2002 | 6x139.7 | 78.1 | 20-30 |
| 2003 | 6x139.7 | 78.1 | 20-30 |
| 2004 | 6x139.7 | 78.1 | 20-30 |
| 2005 | 6x139.7 | 78.1 | 20-30 |
| 2006 | 6x139.7 | 78.1 | 20-30 |
| 2007 | 6x139.7 | 78.1 | 20-30 |
| 2008 | 6x139.7 | 78.1 | 20-30 |
| ▸ 2009 | 6x139.7 | 78.1 | 20-30 |
| 2010 | 6x139.7 | 78.1 | 20-30 |
| 2011 | 6x139.7 | 78.1 | 20-30 |
| 2012 | 6x139.7 | 78.1 | 20-30 |
| 2013 | 6x139.7 | 78.1 | 20-30 |
| 2014 | 6x139.7 | 78.1 | 20-30 |
| 2015 | 6x139.7 | 78.1 | 20-30 |
| 2016 | 6x139.7 | 78.1 | 20-30 |
| 2017 | 6x139.7 | 78.1 | 20-30 |
| 2018 | 6x139.7 | 78.1 | 20-30 |
| 2019 | 6x139.7 | 78.1 | 20-30 |
| 2020 | 6x139.7 | 78.1 | 20-30 |
| 2021 | 6x139.7 | 78.1 | 20-30 |
| 2022 | 6x139.7 | 78.1 | 20-30 |
| 2023 | 6x139.7 | 78.1 | 20-30 |
| 2024 | 6x139.7 | 78.1 | 20-30 |
6x139.7 Pattern Context
This bolt pattern appears on 1067 vehicles in our current database and is considered common.
Examples of other vehicles using 6x139.7:
Expert Buying Guide for 2009 GMC Sierra 1500 Regular Cab
For your 2009 GMC Sierra 1500 Regular Cab, the 6x139.7 bolt pattern and 78.1mm center bore are critical. Aftermarket wheels often have a larger bore (e.g., 106.1mm), requiring hub-centric rings to prevent vibration and ensure load is on the hub, not lugs. Offset must stay within 20-30mm; lower offset pushes wheels outward, risking fender rub, while higher offset may cause brake caliper contact. Always use 14x1.5 lug nuts with the correct seat (conical or ball) matching the wheel. Improper seating can lead to loosening. Re-torque after 50-100 miles.
Historical Fitment Data Reference
In our dataset, GMC Sierra 1500 Regular Cab appears from 1999 to 2024 (26 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: 50.0 mm
Quick Tips & Safety Warnings
- ✅ Re-torque lug nuts to 140 ft-lbs after 50-100 miles of driving.
- ✅ Verify wheel bore is 78.1mm or use hub-centric rings; avoid lug-centric mounting.
- ✅ Check offset carefully: 20mm offset is flush, 30mm is more tucked; test fit before purchase.
- ⚠️ This fitment uses a wide offset range. Check brake clearance and fender clearance before buying wheels.
- ⚠️ Torque lugs in a star pattern to 100 ft-lbs (135 Nm), then re-check torque after 50-100 km (30-60 miles).
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2009 GMC Sierra 1500 Regular Cab — Frequently Asked Questions
What is the bolt pattern for a 2009 GMC Sierra 1500 Regular Cab?
The 2009 GMC Sierra 1500 Regular Cab uses a 6x139.7 bolt pattern (also called lug pattern or PCD). The center bore is 78.1mm and the offset is 20-30mm.
What other years of GMC Sierra 1500 Regular Cab have the same bolt pattern as the 2009?
The GMC Sierra 1500 Regular Cab uses the 6x139.7 pattern from 1999 through 2024. Wheels from any of these model years are dimensionally compatible with the 2009, provided the offset and center bore also match.
How do I measure the bolt pattern on my 2009 GMC?
The 2009 Sierra 1500 Regular Cab uses a 6x139.7 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.
What is the PCD for a 2009 GMC Sierra 1500 Regular Cab?
PCD stands for Pitch Circle Diameter, which is the same as the bolt pattern. For the 2009 Sierra 1500 Regular Cab, the PCD is 6x139.7.
Why is matching the 78.1mm center bore important for the 2009 Sierra 1500 Regular Cab?
The 78.1mm 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 center bore of a 2009 GMC Sierra 1500 Regular Cab?
The factory center bore (hub bore) for the 2009 GMC Sierra 1500 Regular Cab is 78.1mm. If your aftermarket wheels have a larger hub bore, you will need hub-centric rings to prevent vibration.
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