2018 Ram 1500 Crew 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 Crew 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 Crew Cab — Year-Specific Fitment Context
The 2018 model year is the final year of the Ram 1500 Crew Cab's 5x139.7 bolt pattern run (since 2011). Wheels from any 2011–2018 Ram 1500 Crew 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 (2011–2025), the 1500 Crew Cab has also used: 6x139.7.
Ram 1500 Crew Cab Bolt Pattern by Year
The table below shows how the 1500 Crew 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 |
| 2025 | 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 Crew Cab
For your 2018 Ram 1500 Crew Cab, the bolt pattern is 5x139.7mm with a center bore of 77.8mm. When selecting aftermarket wheels, ensure the center bore matches or use hub-centric rings to avoid vibrations. The factory offset is 19mm; deviations beyond ±10mm may cause rubbing or clearance issues. Always verify lug nut thread pitch (9/16-18) and seat type—factory uses cone seat, so aftermarket wheels must match. Never reuse old lug nuts; use new ones torqued to 140 ft-lbs. Note: 2019+ Ram 1500 wheels (6x139.7) do not fit.
Historical Fitment Data Reference
In our dataset, Ram 1500 Crew Cab appears from 2011 to 2025 (15 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
- ✅ Re-torque lug nuts after 50 miles of driving to ensure proper seating.
- ✅ Avoid wheels with offset less than 9mm or more than 29mm to prevent rubbing on suspension or fenders.
- ✅ Check for TPMS sensor compatibility; aftermarket wheels may require new sensors or reprogramming.
- ⚠️ 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.
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2018 Ram 1500 Crew Cab — Frequently Asked Questions
What is the bolt pattern for a 2018 Ram 1500 Crew Cab?
The 2018 Ram 1500 Crew 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 Crew Cab have the same bolt pattern as the 2018?
The Ram 1500 Crew 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 Crew Cab wheels fit a 2018 model?
No. The 2019 Ram 1500 Crew Cab switched to a 6x139.7 bolt pattern, which is not compatible with the 2018 model's 5x139.7. Using mismatched patterns is unsafe.
How tight should I torque the lug nuts on a 2018 Ram 1500 Crew Cab?
Refer to your owner's manual for exact specs, but always tighten the 9/16 hardware in a star or crisscross pattern. Re-torque after the first 50 miles of driving.
What is the factory wheel offset for a 2018 Ram 1500 Crew Cab?
The OEM offset for the 2018 1500 Crew Cab is typically around 19mm. Depending on wheel width, a deviation of ±5mm is usually acceptable, but verify suspension clearance.
Why is matching the 77.8mm center bore important for the 2018 1500 Crew Cab?
The 77.8mm 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.
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