2018 Ram 1500 Quad 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 Ram 1500 Quad Cab, along with offset and center bore data.
| Bolt Pattern (Lug Pattern) | 5x139.7 (5x5.5") |
|---|---|
| Lug Nut / Bolt Size | 9/16 |
| Center Bore (CB) | 77.8 mm |
| Offset (ET) | 19 |
| Torque Specs | 140 ft-lbs (190 Nm) |
Imperial Match: 5x139.7 is commonly referred to as 5x5.5" in US Standard.
2018 1500 Quad Cab — Year-Specific Fitment Context
The 2018 model year is the final year of the Ram 1500 Quad Cab's 5x139.7 bolt pattern run (since 2011). Wheels from any 2011–2018 Ram 1500 Quad Cab are cross-compatible with the 2018 model. Important: starting in 2019, Ram switched to 6x139.7 — those wheels will not fit the 2018 model. Across its full production run (2011–2024), the 1500 Quad Cab has also used: 6x139.7.
Ram 1500 Quad Cab Bolt Pattern by Year
The table below shows how the 1500 Quad Cab's wheel specifications have changed over the years. The 2018 model year is highlighted.
| Year | Bolt Pattern | Center Bore | Offset |
|---|---|---|---|
| 2011 | 5x139.7 | 77.8 | 19 |
| 2012 | 5x139.7 | 77.8 | 19 |
| 2013 | 5x139.7 | 77.8 | 19 |
| 2014 | 5x139.7 | 77.8 | 19 |
| 2015 | 5x139.7 | 77.8 | 19 |
| 2016 | 5x139.7 | 77.8 | 19 |
| 2017 | 5x139.7 | 77.8 | 19 |
| ▸ 2018 | 5x139.7 | 77.8 | 19 |
| 2019 | 6x139.7 | 77.8 | 19 |
| 2020 | 6x139.7 | 77.8 | 19 |
| 2021 | 6x139.7 | 77.8 | 19 |
| 2022 | 6x139.7 | 77.8 | 19 |
| 2023 | 6x139.7 | 77.8 | 19 |
| 2024 | 6x139.7 | 77.8 | 19 |
5x139.7 Pattern Context
This bolt pattern appears on 261 vehicles in our current database and is considered moderately common.
Examples of other vehicles using 5x139.7:
Expert Buying Guide for 2018 Ram 1500 Quad Cab
For your 2018 Ram 1500 Quad Cab, the 5x139.7 bolt pattern and 77.8mm center bore are critical. Aftermarket wheels often have a larger center bore; use hub-centric rings to prevent vibration and ensure proper load distribution. The factory offset is 19mm; deviations beyond ±10mm may cause rubbing or clearance issues. Always verify lug nut seat type: factory uses 9/16" cone seat. Using incorrect seat type (e.g., ball seat) can lead to wheel loosening. Re-torque after 50 miles. Note: 2019+ Ram 1500 wheels (6x139.7) will not fit.
Historical Fitment Data Reference
In our dataset, Ram 1500 Quad Cab appears from 2011 to 2024 (14 model years). Across model years, this model appears with 2 bolt patterns (5x139.7, 6x139.7).
- Observed bolt-pattern variants for this model: 2
- Observed center-bore variants for this model: 1
- Observed lug-size variants for this model: 2
- Observed total offset span across years: 0.0 mm
Quick Tips & Safety Warnings
- ✅ Always use hub-centric rings if aftermarket wheels have a bore larger than 77.8mm to avoid vibration.
- ✅ Stick within ±10mm of the factory 19mm offset to prevent tire rubbing on suspension or body.
- ✅ Re-torque lug nuts to 130-140 ft-lbs after 50 miles of driving; use a torque wrench, not an impact gun.
- ⚠️ 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.
Ready to upgrade or perform maintenance?
🛒 Shop Tools & Accessories on AmazonAs an Amazon Associate, I earn from qualifying purchases.
2018 Ram 1500 Quad Cab — Frequently Asked Questions
What is the bolt pattern for a 2018 Ram 1500 Quad Cab?
The 2018 Ram 1500 Quad Cab uses a 5x139.7 bolt pattern (also called lug pattern or PCD). The center bore is 77.8mm and the offset is 19mm.
What other years of Ram 1500 Quad Cab have the same bolt pattern as the 2018?
The Ram 1500 Quad Cab uses the 5x139.7 pattern from 2011 through 2018. Wheels from any of these model years are dimensionally compatible with the 2018, provided the offset and center bore also match.
Will 2019 Ram 1500 Quad Cab wheels fit a 2018 model?
No. The 2019 Ram 1500 Quad Cab switched to a 6x139.7 bolt pattern, which is not compatible with the 2018 model's 5x139.7. Using mismatched patterns is unsafe.
Can I use spacers on my 2018 Ram 1500 Quad Cab?
Yes, but ensure the wheel spacers match the 5x139.7 bolt pattern and 77.8mm center bore. Also verify that you have enough thread engagement for your 9/16 hardware.
Do 2018 Ram 1500 Quad Cabs use lug bolts or lug nuts?
The 2018 1500 Quad Cab requires 9/16 hardware. Check your specific trim to ensure you use the correct conical or spherical seating.
Will wheels from another Ram fit my 2018 1500 Quad Cab?
Only if they share the exact same 5x139.7 bolt pattern, a compatible offset, and a center bore equal to or larger than 77.8mm.
Need more vehicle fitment data?
Access our complete, raw JSON/CSV database of over 11,000+ vehicles for your next app or project.
Get the Full Dataset