2018 GMC Sierra 2500 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 2018 GMC Sierra 2500 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) |
2018 Sierra 2500 HD Double Cab — Year-Specific Fitment Context
The 2018 GMC Sierra 2500 HD Double Cab is in year 4 of 10 using the 8x180 pattern (2015–2024). Wheels from any 2015–2024 GMC Sierra 2500 HD Double Cab are cross-compatible with the 2018 model.
GMC Sierra 2500 HD Double Cab Bolt Pattern by Year
The table below shows how the Sierra 2500 HD Double Cab's wheel specifications have changed over the years. The 2018 model year is highlighted.
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 2500 HD Double Cab
For your 2018 GMC Sierra 2500 HD Double Cab, the 8x180 bolt pattern and 124.9mm center bore are critical. Aftermarket wheels often have a larger center bore (e.g., 125.1mm), requiring hub-centric rings to prevent vibration and ensure load is on the hub, not the lugs. Offset is sensitive: stock is 44mm; deviations affect scrub radius and clearance. Use only 14x1.5 lug nuts with the correct seat (factory uses cone seat). Incorrect thread pitch or seat type can cause wheel separation. Always verify lug nut engagement (at least 7 full turns).
Historical Fitment Data Reference
In our dataset, GMC Sierra 2500 HD Double Cab appears from 2015 to 2024 (8 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
Quick Tips & Safety Warnings
- ✅ Re-torque lug nuts after 50-100 miles to 140 ft-lbs (check manual).
- ✅ Avoid wheels with offset below 30mm or above 55mm to prevent rubbing or bearing load issues.
- ✅ Ensure aftermarket wheels have a minimum load rating of 3,640 lbs (per wheel) for HD truck safety.
- ⚠️ Torque lugs in a star pattern to 140 ft-lbs (190 Nm), then re-check torque after 50-100 km (30-60 miles).
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2018 GMC Sierra 2500 HD Double Cab — Frequently Asked Questions
What is the bolt pattern for a 2018 GMC Sierra 2500 HD Double Cab?
The 2018 GMC Sierra 2500 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 2500 HD Double Cab have the same bolt pattern as the 2018?
The GMC Sierra 2500 HD Double Cab uses the 8x180 pattern from 2015 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 2500 HD Double 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 2500 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).
Can I use spacers on my 2018 GMC Sierra 2500 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 lug nut size does the 2018 GMC Sierra 2500 HD Double Cab use?
The 2018 GMC Sierra 2500 HD Double Cab uses 14x1.5 lug nuts. Always verify the thread pitch and seat type (cone, ball, or flat) match your aftermarket wheels.
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