2018 GMC Yukon 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 Yukon, 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.
2018 Yukon — Year-Specific Fitment Context
The 2018 GMC Yukon is in year 27 of 34 using the 6x139.7 pattern (1992–2025). Wheels from any 1992–2025 GMC Yukon are cross-compatible with the 2018 model.
GMC Yukon Bolt Pattern by Year
The table below shows how the Yukon's wheel specifications have changed over the years. The 2018 model year is highlighted.
| Year | Bolt Pattern | Center Bore | Offset |
|---|---|---|---|
| 1992 | 6x139.7 | 78.1 | 20-30 |
| 1993 | 6x139.7 | 78.1 | 20-30 |
| 1994 | 6x139.7 | 78.1 | 20-30 |
| 1995 | 6x139.7 | 78.1 | 20-30 |
| 1996 | 6x139.7 | 78.1 | 20-30 |
| 1997 | 6x139.7 | 78.1 | 20-30 |
| 1998 | 6x139.7 | 78.1 | 20-30 |
| 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 |
| 2025 | 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 2018 GMC Yukon
For your 2018 GMC Yukon, the 6x139.7 bolt pattern is shared across 1992–2025 models, ensuring broad cross-compatibility. Critical fitment factors: the 78.1mm center bore requires hub-centric rings for aftermarket wheels to prevent vibration and load stress. Offset must stay within 20–30mm; deviations risk rubbing or bearing damage. Always use 14x1.5 lug nuts with the correct seat type (conical/ball) matching your wheels—mismatched seats cause loosening and failure. Verify wheel load rating exceeds vehicle weight. Re-torque after 50–100 miles.
Historical Fitment Data Reference
In our dataset, GMC Yukon appears from 1992 to 2025 (34 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-lb after 50–100 miles of driving.
- ✅ Ensure aftermarket wheels have a minimum load rating of 2,500 lbs per wheel.
- ✅ Check for caliper clearance with offset near 20mm; some designs may require spacers.
- ⚠️ 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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2018 GMC Yukon — Frequently Asked Questions
What is the bolt pattern for a 2018 GMC Yukon?
The 2018 GMC Yukon 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 Yukon have the same bolt pattern as the 2018?
The GMC Yukon uses the 6x139.7 pattern from 1992 through 2025. 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 GMC Yukon?
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.
Can I put aftermarket wheels on my 2018 GMC Yukon?
Absolutely. Just ensure the aftermarket wheels have a 6x139.7 bolt pattern, an offset near 20-30mm, and a center bore of at least 78.1mm (using hub rings if larger).
Do 2018 GMC Yukons use lug bolts or lug nuts?
The 2018 Yukon requires 14x1.5 hardware. Check your specific trim to ensure you use the correct conical or spherical seating.
Will wheels from another GMC fit my 2018 Yukon?
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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