2021 GMC Sierra 3500 HD Double Cab Bolt Pattern
Checking fitment for your vehicle? Below you will find the factory bolt pattern (also known as the lug pattern) for the 2021 GMC Sierra 3500 HD Double 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) |
2021 Sierra 3500 HD Double Cab — Year-Specific Fitment Context
The 2021 GMC Sierra 3500 HD Double Cab is in year 7 of 10 using the 8x180 pattern (2015–2024). Wheels from any 2015–2024 GMC Sierra 3500 HD Double Cab are cross-compatible with the 2021 model.
GMC Sierra 3500 HD Double Cab Bolt Pattern by Year
The table below shows how the Sierra 3500 HD Double Cab's wheel specifications have changed over the years. The 2021 model year is highlighted.
Fitment Notes
The 2021 GMC Sierra 3500 HD Double Cab has a bolt pattern of 8x180.
This means it is a 8 lug pattern with a circle diameter of 180mm. When shopping for aftermarket wheels, ensure the "lug pattern" or "PCD" matches these numbers.
Year-to-Year Fitment Context
In our dataset, GMC Sierra 3500 HD Double Cab appears from 2015 to 2024 (7 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: 0.0 mm
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:
2021 GMC Sierra 3500 HD Double Cab — Frequently Asked Questions
What is the bolt pattern for a 2021 GMC Sierra 3500 HD Double Cab?
The 2021 GMC Sierra 3500 HD Double 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 Double Cab have the same bolt pattern as the 2021?
The GMC Sierra 3500 HD Double Cab uses the 8x180 pattern from 2015 through 2024. Wheels from any of these model years are dimensionally compatible with the 2021, provided the offset and center bore also match.
Can I use spacers on my 2021 GMC Sierra 3500 HD Double 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 does 44mm offset mean for the 2021 Sierra 3500 HD Double Cab?
An offset of 44mm means the wheel's mounting surface is 44mm away from its centerline. Changing this value drastically can affect suspension geometry and wheel bearing wear on your GMC.
Why is matching the 124.9mm center bore important for the 2021 Sierra 3500 HD Double Cab?
The 124.9mm 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.
Can I put aftermarket wheels on my 2021 GMC Sierra 3500 HD Double 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).
Fitment Checklist Before You Buy Wheels
- Torque lugs in a star pattern to 140 ft-lbs (190 Nm), then re-check torque after 50-100 km (30-60 miles).
Editorial Fitment Notes
GMC Sierra 3500 HD Double 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: 2015-2024 (7 model years).
- Observed bolt-pattern variants: 1 (8x180).
- Observed total offset span across years: 0.0 mm.
- Observed center-bore variants: 1 | lug-size variants: 1.
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 2021 GMC Sierra 3500 HD Double Cab, please report it via our About page contact so we can verify and update this record.