2018 GMC Sierra 3500 HD 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 GMC Sierra 3500 HD Regular Cab, along with offset and center bore data.
| Bolt Pattern (Lug Pattern) | 8x180 |
|---|---|
| Lug Nut / Bolt Size | 14x1.5 |
| Center Bore (CB) | 124.9 mm |
| Offset (ET) | 44 |
| Torque Specs | 140 ft-lbs (190 Nm) |
2018 Sierra 3500 HD Regular Cab — Year-Specific Fitment Context
The 2018 GMC Sierra 3500 HD Regular Cab is in year 8 of 14 using the 8x180 pattern (2011–2024). Wheels from any 2011–2024 GMC Sierra 3500 HD Regular Cab are cross-compatible with the 2018 model. Across its full production run (2007–2024), the Sierra 3500 HD Regular Cab has also used: 8x165.1.
GMC Sierra 3500 HD Regular Cab Bolt Pattern by Year
The table below shows how the Sierra 3500 HD Regular Cab's wheel specifications have changed over the years. The 2018 model year is highlighted.
| Year | Bolt Pattern | Center Bore | Offset |
|---|---|---|---|
| 2007 | 8x165.1 | 116.7 | 20-40 |
| 2008 | 8x165.1 | 116.7 | 20-40 |
| 2009 | 8x165.1 | 116.7 | 20-40 |
| 2010 | 8x165.1 | 116.7 | 20-40 |
| 2011 | 8x180 | 124.9 | 44 |
| 2012 | 8x180 | 124.9 | 44 |
| 2013 | 8x180 | 124.9 | 44 |
| 2014 | 8x180 | 124.9 | 44 |
| 2015 | 8x180 | 124.9 | 44 |
| 2016 | 8x180 | 124.9 | 44 |
| 2017 | 8x180 | 124.9 | 44 |
| ▸ 2018 | 8x180 | 124.9 | 44 |
| 2021 | 8x180 | 124.9 | 44 |
| 2022 | 8x180 | 124.9 | 44 |
| 2023 | 8x180 | 124.9 | 44 |
| 2024 | 8x180 | 124.9 | 44 |
8x180 Pattern Context
This bolt pattern appears on 247 vehicles in our current database and is considered moderately common.
Examples of other vehicles using 8x180:
Expert Buying Guide for 2018 GMC Sierra 3500 HD Regular Cab
The 2018 GMC Sierra 3500 HD Regular Cab uses an 8x180 bolt pattern with a 124.9mm center bore. When selecting aftermarket wheels, ensure hub-centric rings are used to match the bore precisely, preventing vibrations and ensuring proper load distribution. The factory offset is 44mm; deviations beyond ±5mm may cause clearance issues with brakes or suspension. Always verify lug nut thread pitch (14x1.5) and seat type—factory wheels use a conical (60-degree) seat. Using incorrect lug nuts can lead to wheel loosening. Cross-compatible wheels from 2011–2024 Sierra 3500 HD models share the same specs, but avoid 8x165.1 wheels from earlier years.
Historical Fitment Data Reference
In our dataset, GMC Sierra 3500 HD Regular Cab appears from 2007 to 2024 (16 model years). Across model years, this model appears with 2 bolt patterns (8x165.1, 8x180).
- Observed bolt-pattern variants for this model: 2
- Observed center-bore variants for this model: 2
- Observed lug-size variants for this model: 1
- Observed total offset span across years: 84.0 mm
Quick Tips & Safety Warnings
- ✅ Re-torque lug nuts to 140 ft-lbs after 50 miles of driving to ensure proper seating.
- ✅ Aftermarket wheels with a larger center bore require hub-centric rings; plastic rings are acceptable for street use, but aluminum rings are recommended for heavy towing.
- ✅ Check brake caliper clearance when using wheels with offset below 39mm or above 49mm, as the HD brakes are large.
- ⚠️ Torque lugs in a star pattern to 140 ft-lbs (190 Nm), then re-check torque after 50-100 km (30-60 miles).
- ⚠️ This model has multiple bolt-pattern records across years. Match wheels to exact year/trim before purchase.
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2018 GMC Sierra 3500 HD Regular Cab — Frequently Asked Questions
What is the bolt pattern for a 2018 GMC Sierra 3500 HD Regular Cab?
The 2018 GMC Sierra 3500 HD Regular Cab uses a 8x180 bolt pattern (also called lug pattern or PCD). The center bore is 124.9mm and the offset is 44mm.
What other years of GMC Sierra 3500 HD Regular Cab have the same bolt pattern as the 2018?
The GMC Sierra 3500 HD Regular Cab uses the 8x180 pattern from 2011 through 2024. Wheels from any of these model years are dimensionally compatible with the 2018, provided the offset and center bore also match.
Will wheels from another GMC fit my 2018 Sierra 3500 HD Regular Cab?
Only if they share the exact same 8x180 bolt pattern, a compatible offset, and a center bore equal to or larger than 124.9mm.
Can I put aftermarket wheels on my 2018 GMC Sierra 3500 HD Regular Cab?
Absolutely. Just ensure the aftermarket wheels have a 8x180 bolt pattern, an offset near 44mm, and a center bore of at least 124.9mm (using hub rings if larger).
Can I use spacers on my 2018 GMC Sierra 3500 HD Regular Cab?
Yes, but ensure the wheel spacers match the 8x180 bolt pattern and 124.9mm center bore. Also verify that you have enough thread engagement for your 14x1.5 hardware.
What is the PCD for a 2018 GMC Sierra 3500 HD Regular Cab?
PCD stands for Pitch Circle Diameter, which is the same as the bolt pattern. For the 2018 Sierra 3500 HD Regular Cab, the PCD is 8x180.
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