2018 Chevrolet Silverado 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 2018 Chevrolet Silverado 1500 Regular Cab, along with offset and center bore data.
| Bolt Pattern (Lug Pattern) | 6x139.7 (6x5.5") |
|---|---|
| Lug Nut / Bolt Size | N 14x1.50 |
| Center Bore (CB) | 78.1 mm |
| Offset (ET) | 26 |
| Torque Specs | 100 ft-lbs (135 Nm) |
2018 Silverado 1500 Regular Cab — Year-Specific Fitment Context
The 2018 Chevrolet Silverado 1500 Regular Cab is in year 20 of 26 using the 6x139.7 pattern (1999–2024). Wheels from any 1999–2024 Chevrolet Silverado 1500 Regular Cab are cross-compatible with the 2018 model.
Chevrolet Silverado 1500 Regular Cab Bolt Pattern by Year
The table below shows how the Silverado 1500 Regular Cab's wheel specifications have changed over the years. The 2018 model year is highlighted.
| Year | Bolt Pattern | Center Bore | Offset |
|---|---|---|---|
| 1999 | 6x139.7 | 78.1 | 16 |
| 2000 | 6x139.7 | 78.1 | 16 |
| 2001 | 6x139.7 | 78.1 | 16 |
| 2002 | 6x139.7 | 78.1 | 16 |
| 2003 | 6x139.7 | 78.1 | 16 |
| 2004 | 6x139.7 | 78.1 | 16 |
| 2005 | 6x139.7 | 78.1 | 16 |
| 2006 | 6x139.7 | 78.1 | 16 |
| 2007 | 6x139.7 | 78.1 | 16 |
| 2008 | 6x139.7 | 78.1 | 16 |
| 2009 | 6x139.7 | 78.1 | 26 |
| 2010 | 6x139.7 | 78.1 | 26 |
| 2011 | 6x139.7 | 78.1 | 26 |
| 2012 | 6x139.7 | 78.1 | 26 |
| 2013 | 6x139.7 | 78.1 | 26 |
| 2014 | 6x139.7 | 78.1 | 26 |
| 2015 | 6x139.7 | 78.1 | 26 |
| 2016 | 6x139.7 | 78.1 | 26 |
| 2017 | 6x139.7 | 78.1 | 26 |
| ▸ 2018 | 6x139.7 | 78.1 | 26 |
| 2019 | 6x139.7 | 78.1 | 24-28 |
| 2020 | 6x139.7 | 78.1 | 24-28 |
| 2021 | 6x139.7 | 78.1 | 24-28 |
| 2022 | 6x139.7 | 78.1 | 24-28 |
| 2023 | 6x139.7 | 78.1 | 24-28 |
| 2024 | 6x139.7 | 78.1 | 24-28 |
Fitment Notes
The 2018 Chevrolet Silverado 1500 Regular Cab has a bolt pattern of 6x139.7.
Imperial Conversion: This bolt pattern is commonly referred to as 6x5.5" in imperial units. When searching for aftermarket wheels, you may see them listed as 6x5.5".
This means it is a 6 lug pattern with a circle diameter of 139.7mm. When shopping for aftermarket wheels, ensure the "lug pattern" or "PCD" matches these numbers.
Year-to-Year Fitment Context
In our dataset, Chevrolet Silverado 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: 2
- Observed total offset span across years: 54.0 mm
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:
2018 Chevrolet Silverado 1500 Regular Cab — Frequently Asked Questions
What is the bolt pattern for a 2018 Chevrolet Silverado 1500 Regular Cab?
The 2018 Chevrolet Silverado 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 26mm.
What other years of Chevrolet Silverado 1500 Regular Cab have the same bolt pattern as the 2018?
The Chevrolet Silverado 1500 Regular Cab uses the 6x139.7 pattern from 1999 through 2024. Wheels from any of these model years are dimensionally compatible with the 2018, provided the offset and center bore also match.
How tight should I torque the lug nuts on a 2018 Chevrolet Silverado 1500 Regular Cab?
Refer to your owner's manual for exact specs, but always tighten the N 14x1.50 hardware in a star or crisscross pattern. Re-torque after the first 50 miles of driving.
What is the factory wheel offset for a 2018 Chevrolet Silverado 1500 Regular Cab?
The OEM offset for the 2018 Silverado 1500 Regular Cab is typically around 26mm. Depending on wheel width, a deviation of ±5mm is usually acceptable, but verify suspension clearance.
Can I use spacers on my 2018 Chevrolet Silverado 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 N 14x1.50 hardware.
What is the PCD for a 2018 Chevrolet Silverado 1500 Regular Cab?
PCD stands for Pitch Circle Diameter, which is the same as the bolt pattern. For the 2018 Silverado 1500 Regular Cab, the PCD is 6x139.7.
Fitment Checklist Before You Buy Wheels
- Torque lugs in a star pattern to 100 ft-lbs (135 Nm), then re-check torque after 50-100 km (30-60 miles).
Editorial Fitment Notes
Chevrolet Silverado 1500 Regular Cab 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: 1999-2024 (26 model years).
- Observed bolt-pattern variants: 1 (6x139.7).
- Observed total offset span across years: 54.0 mm.
- Observed center-bore variants: 1 | lug-size variants: 2.
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 2018 Chevrolet Silverado 1500 Regular Cab, please report it via our About page contact so we can verify and update this record.