2018 Chevrolet Suburban 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 Suburban, 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) | 31 |
| Torque Specs | 100 ft-lbs (135 Nm) |
Imperial Match: 6x139.7 is commonly referred to as 6x5.5" in US Standard.
2018 Suburban — Year-Specific Fitment Context
The 2018 Chevrolet Suburban is in year 4 of 11 using the 6x139.7 pattern (2015–2025). Wheels from any 2015–2025 Chevrolet Suburban are cross-compatible with the 2018 model.
Chevrolet Suburban Bolt Pattern by Year
The table below shows how the Suburban's wheel specifications have changed over the years. The 2018 model year is highlighted.
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 Chevrolet Suburban
For the 2018 Chevrolet Suburban, the 6x139.7 bolt pattern is shared across 2015–2025 models, ensuring cross-compatibility. However, the 78.1mm center bore is critical: aftermarket wheels with a larger bore require hub-centric rings to prevent vibration and ensure proper load transfer. Offset sensitivity is high; the factory 31mm offset should be maintained within ±5mm to avoid rubbing or suspension interference. Always verify lug nut thread pitch (14x1.50) and seat type—use conical (60-degree) or ball-seat nuts as specified. Never mix seat types; improper seating can cause wheel loosening. Re-torque after 50–100 miles.
Historical Fitment Data Reference
In our dataset, Chevrolet Suburban appears from 2015 to 2025 (11 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: 59.0 mm
Quick Tips & Safety Warnings
- ✅ Re-torque lug nuts to 140 ft-lbs after 50–100 miles of driving.
- ✅ Avoid wheels with offset below 26mm or above 36mm to prevent rubbing on fenders or suspension.
- ✅ Use hub-centric rings (78.1mm ID to wheel hub OD) for aftermarket wheels to eliminate vibrations.
- ⚠️ 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 Chevrolet Suburban — Frequently Asked Questions
What is the bolt pattern for a 2018 Chevrolet Suburban?
The 2018 Chevrolet Suburban uses a 6x139.7 bolt pattern (also called lug pattern or PCD). The center bore is 78.1mm and the offset is 31mm.
What other years of Chevrolet Suburban have the same bolt pattern as the 2018?
The Chevrolet Suburban uses the 6x139.7 pattern from 2015 through 2025. Wheels from any of these model years are dimensionally compatible with the 2018, provided the offset and center bore also match.
What is the factory wheel offset for a 2018 Chevrolet Suburban?
The OEM offset for the 2018 Suburban is typically around 31mm. Depending on wheel width, a deviation of ±5mm is usually acceptable, but verify suspension clearance.
Why is matching the 78.1mm center bore important for the 2018 Suburban?
The 78.1mm 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.
What is the PCD for a 2018 Chevrolet Suburban?
PCD stands for Pitch Circle Diameter, which is the same as the bolt pattern. For the 2018 Suburban, the PCD is 6x139.7.
Can I put aftermarket wheels on my 2018 Chevrolet Suburban?
Absolutely. Just ensure the aftermarket wheels have a 6x139.7 bolt pattern, an offset near 31mm, and a center bore of at least 78.1mm (using hub rings if larger).
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