2012 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 2012 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.
2012 Sierra 1500 Regular Cab — Year-Specific Fitment Context
The 2012 GMC Sierra 1500 Regular Cab is in year 14 of 26 using the 6x139.7 pattern (1999–2024). Wheels from any 1999–2024 GMC Sierra 1500 Regular Cab are cross-compatible with the 2012 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 2012 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 2012 GMC Sierra 1500 Regular Cab
For your 2012 GMC Sierra 1500 Regular Cab, the 6x139.7 bolt pattern and 78.1mm center bore are critical. Aftermarket wheels often have a larger center bore, requiring hub-centric rings to prevent vibration and ensure proper load distribution. Offset must stay within 20-30mm; deviations risk rubbing or poor handling. Always use 14x1.5 lug nuts with the correct seat type—factory uses cone seat. Never mix seat types; improper seating can cause wheel loss. Re-torque after 50-100 miles. This model shares fitment with 1999-2024 Sierra 1500 Regular Cabs, expanding your options.
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.
- ✅ Ensure aftermarket wheels have a center bore ≥78.1mm; use hub-centric rings if larger.
- ✅ Avoid wheels with offset below 20mm (too aggressive) or above 30mm (too tucked) to prevent rubbing or brake clearance issues.
- ⚠️ 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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2012 GMC Sierra 1500 Regular Cab — Frequently Asked Questions
What is the bolt pattern for a 2012 GMC Sierra 1500 Regular Cab?
The 2012 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 2012?
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 2012, provided the offset and center bore also match.
Can I use spacers on my 2012 GMC Sierra 1500 Regular Cab?
Yes, but ensure the wheel spacers match the 6x139.7 bolt pattern and 78.1mm center bore. Also verify that you have enough thread engagement for your 14x1.5 hardware.
What is the PCD for a 2012 GMC Sierra 1500 Regular Cab?
PCD stands for Pitch Circle Diameter, which is the same as the bolt pattern. For the 2012 Sierra 1500 Regular Cab, the PCD is 6x139.7.
How tight should I torque the lug nuts on a 2012 GMC Sierra 1500 Regular Cab?
Refer to your owner's manual for exact specs, but always tighten the 14x1.5 hardware in a star or crisscross pattern. Re-torque after the first 50 miles of driving.
Will wheels from another GMC fit my 2012 Sierra 1500 Regular Cab?
Only if they share the exact same 6x139.7 bolt pattern, a compatible offset, and a center bore equal to or larger than 78.1mm.
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