2013 Ram 3500 Mega Cab Bolt Pattern
Checking fitment for your vehicle? Below you will find the factory bolt pattern (also known as the lug pattern) for the 2013 Ram 3500 Mega Cab, along with offset and center bore data.
| Bolt Pattern (Lug Pattern) | 8x165.1 (8x6.5") |
|---|---|
| Lug Nut / Bolt Size | 14x1.5 |
| Center Bore (CB) | 121.3 mm |
| Offset (ET) | 43 |
| Torque Specs | 140 ft-lbs (190 Nm) |
Imperial Match: 8x165.1 is commonly referred to as 8x6.5" in US Standard.
2013 3500 Mega Cab — Year-Specific Fitment Context
The 2013 Ram 3500 Mega Cab is in year 3 of 14 using the 8x165.1 pattern (2011–2024). Wheels from any 2011–2024 Ram 3500 Mega Cab are cross-compatible with the 2013 model.
Ram 3500 Mega Cab Bolt Pattern by Year
The table below shows how the 3500 Mega Cab's wheel specifications have changed over the years. The 2013 model year is highlighted.
| Year | Bolt Pattern | Center Bore | Offset |
|---|---|---|---|
| 2011 | 8x165.1 | 121.3 | 25 |
| 2012 | 8x165.1 | 121.3 | 43 |
| ▸ 2013 | 8x165.1 | 121.3 | 43 |
| 2014 | 8x165.1 | 121.3 | 43 |
| 2015 | 8x165.1 | 121.3 | 43 |
| 2016 | 8x165.1 | 121.3 | 43 |
| 2017 | 8x165.1 | 121.3 | 43 |
| 2018 | 8x165.1 | 121.3 | 43 |
| 2019 | 8x165.1 | 121.3 | 43 |
| 2021 | 8x165.1 | 121.3 | 43 |
| 2022 | 8x165.1 | 121.3 | 43 |
| 2024 | 8x165.1 | 121.3 | 43 |
8x165.1 Pattern Context
This bolt pattern appears on 846 vehicles in our current database and is considered common.
Examples of other vehicles using 8x165.1:
Expert Buying Guide for 2013 Ram 3500 Mega Cab
The 2013 Ram 3500 Mega Cab uses an 8x165.1 bolt pattern with a 121.3mm center bore. Aftermarket wheels often have a larger bore, requiring hub-centric rings to prevent vibration and ensure proper load distribution. The factory offset is 43mm; deviations beyond ±10mm may cause rubbing or clearance issues with brakes and suspension. Always verify lug nut thread pitch (14x1.5) and seat type—use conical (60-degree) or ball-seat nuts as specified by the wheel manufacturer. Never mix seat types, as improper seating can lead to wheel loosening. Re-torque after 50-100 miles.
Historical Fitment Data Reference
In our dataset, Ram 3500 Mega Cab appears from 2011 to 2024 (12 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: 18.0 mm
Quick Tips & Safety Warnings
- ✅ Re-torque lug nuts to 140-160 ft-lbs after 50-100 miles of driving.
- ✅ Ensure aftermarket wheels have a minimum load rating of 3,500 lbs per wheel for this heavy-duty truck.
- ✅ Check for brake caliper clearance when using wheels with offset less than 35mm.
- ⚠️ Torque lugs in a star pattern to 140 ft-lbs (190 Nm), then re-check torque after 50-100 km (30-60 miles).
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2013 Ram 3500 Mega Cab — Frequently Asked Questions
What is the bolt pattern for a 2013 Ram 3500 Mega Cab?
The 2013 Ram 3500 Mega Cab uses a 8x165.1 bolt pattern (also called lug pattern or PCD). The center bore is 121.3mm and the offset is 43mm.
What other years of Ram 3500 Mega Cab have the same bolt pattern as the 2013?
The Ram 3500 Mega Cab uses the 8x165.1 pattern from 2011 through 2024. Wheels from any of these model years are dimensionally compatible with the 2013, provided the offset and center bore also match.
How tight should I torque the lug nuts on a 2013 Ram 3500 Mega Cab?
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.
Why is matching the 121.3mm center bore important for the 2013 3500 Mega Cab?
The 121.3mm 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.
Can I use spacers on my 2013 Ram 3500 Mega Cab?
Yes, but ensure the wheel spacers match the 8x165.1 bolt pattern and 121.3mm center bore. Also verify that you have enough thread engagement for your 14x1.5 hardware.
What is the PCD for a 2013 Ram 3500 Mega Cab?
PCD stands for Pitch Circle Diameter, which is the same as the bolt pattern. For the 2013 3500 Mega Cab, the PCD is 8x165.1.
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