2020 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 2020 Ram 1500 Crew Cab, along with offset and center bore data.
| Bolt Pattern (Lug Pattern) | 6x139.7 (6x5.5") |
|---|---|
| Lug Nut / Bolt Size | 14x1.5 |
| Center Bore (CB) | 77.8 mm |
| Offset (ET) | 19 |
| Torque Specs | 100 ft-lbs (135 Nm) |
Imperial Match: 6x139.7 is commonly referred to as 6x5.5" in US Standard.
2020 1500 Crew Cab — Year-Specific Fitment Context
The 2020 Ram 1500 Crew Cab is in year 2 of 7 using the 6x139.7 pattern (2019–2025). Wheels from any 2019–2025 Ram 1500 Crew Cab are cross-compatible with the 2020 model. Across its full production run (2011–2025), the 1500 Crew Cab has also used: 5x139.7.
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 2020 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 |
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 2020 Ram 1500 Crew Cab
For your 2020 Ram 1500 Crew Cab, the 6x139.7 bolt pattern is shared with 2019–2025 models, ensuring broad cross-compatibility. However, the 77.8mm center bore is critical: aftermarket wheels often have a larger bore, requiring hub-centric rings to prevent vibration and ensure proper load distribution. Offset is sensitive; the factory 19mm offset maintains optimal suspension geometry and tire clearance. Deviating significantly may cause rubbing or handling issues. Always use lug nuts with the correct 14x1.5 thread pitch and seat type (factory uses cone seat). Mixing seat types can lead to wheel loosening. Safety first: verify all specs before installation.
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 to 130-140 ft-lbs after 50 miles of driving to ensure proper seating.
- ✅ Avoid using wheels with a center bore larger than 77.8mm without hub-centric rings; vibration and stress on studs may occur.
- ✅ Check offset carefully: positive offsets (higher than 19mm) may contact suspension, while lower offsets can cause fender rubbing.
- ⚠️ Torque lugs in a star pattern to 100 ft-lbs (135 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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2020 Ram 1500 Crew Cab — Frequently Asked Questions
What is the bolt pattern for a 2020 Ram 1500 Crew Cab?
The 2020 Ram 1500 Crew Cab uses a 6x139.7 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 2020?
The Ram 1500 Crew Cab uses the 6x139.7 pattern from 2019 through 2025. Wheels from any of these model years are dimensionally compatible with the 2020, provided the offset and center bore also match.
How do I measure the bolt pattern on my 2020 Ram?
The 2020 1500 Crew Cab uses a 6x139.7 pattern. For 4, 6, or 8-lug wheels, measure center-to-center across opposite holes. For 5-lug, measure from the center of one hole to the back of the opposite hole.
Can I put aftermarket wheels on my 2020 Ram 1500 Crew Cab?
Absolutely. Just ensure the aftermarket wheels have a 6x139.7 bolt pattern, an offset near 19mm, and a center bore of at least 77.8mm (using hub rings if larger).
Can I use spacers on my 2020 Ram 1500 Crew Cab?
Yes, but ensure the wheel spacers match the 6x139.7 bolt pattern and 77.8mm center bore. Also verify that you have enough thread engagement for your 14x1.5 hardware.
What is the factory wheel offset for a 2020 Ram 1500 Crew Cab?
The OEM offset for the 2020 1500 Crew Cab is typically around 19mm. Depending on wheel width, a deviation of ±5mm is usually acceptable, but verify suspension clearance.
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