2009 Dodge Ram 2500 Regular Cab Bolt Pattern
Checking fitment for your vehicle? Below you will find the factory bolt pattern (also known as the lug pattern) for the 2009 Dodge Ram 2500 Regular Cab, along with offset and center bore data.
| Bolt Pattern (Lug Pattern) | 8x165.1 (8x6.5") |
|---|---|
| Lug Nut / Bolt Size | 9/16 |
| 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.
2009 Ram 2500 Regular Cab — Year-Specific Fitment Context
The 2009 Dodge Ram 2500 Regular Cab is in year 16 of 17 using the 8x165.1 pattern (1994–2010). Wheels from any 1994–2010 Dodge Ram 2500 Regular Cab are cross-compatible with the 2009 model.
Dodge Ram 2500 Regular Cab Bolt Pattern by Year
The table below shows how the Ram 2500 Regular Cab's wheel specifications have changed over the years. The 2009 model year is highlighted.
| Year | Bolt Pattern | Center Bore | Offset |
|---|---|---|---|
| 1994 | 8x165.1 | 121.3 | 43 |
| 1995 | 8x165.1 | 121.3 | 43 |
| 1996 | 8x165.1 | 121.3 | 43 |
| 1997 | 8x165.1 | 121.3 | 43 |
| 1998 | 8x165.1 | 121.3 | 43 |
| 1999 | 8x165.1 | 121.3 | 43 |
| 2000 | 8x165.1 | 121.3 | 43 |
| 2001 | 8x165.1 | 121.3 | 43 |
| 2002 | 8x165.1 | 121.3 | 43 |
| 2003 | 8x165.1 | 121.3 | 43 |
| 2004 | 8x165.1 | 121.3 | 43 |
| 2005 | 8x165.1 | 121.3 | 43 |
| 2006 | 8x165.1 | 121.3 | 43 |
| 2007 | 8x165.1 | 121.3 | 43 |
| 2008 | 8x165.1 | 121.3 | 43 |
| ▸ 2009 | 8x165.1 | 121.3 | 43 |
| 2010 | 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 2009 Dodge Ram 2500 Regular Cab
For your 2009 Dodge Ram 2500 Regular Cab, the critical center bore is 121.3mm. Aftermarket wheels often have a larger bore (e.g., 130mm), requiring hub-centric rings to prevent vibration and ensure proper load transfer. The offset is sensitive; the factory 43mm offset maintains correct scrub radius and suspension geometry. Deviating more than ±10mm may cause rubbing or bearing stress. Always verify lug nut thread pitch (9/16" fine thread) and seat type: use cone-seat lug nuts for aftermarket wheels, as factory wheels use a different seat. Improper lug nuts can lead to wheel detachment. Safety first: never reuse torque-to-yield fasteners.
Historical Fitment Data Reference
In our dataset, Dodge Ram 2500 Regular Cab appears from 1994 to 2010 (17 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: 1
- Observed total offset span across years: 0.0 mm
Quick Tips & Safety Warnings
- ✅ Re-torque lug nuts after 50-100 miles of driving to account for wheel seating and thermal expansion.
- ✅ When using aftermarket wheels, ensure hub-centric rings are made of metal (not plastic) for durability and heat resistance.
- ✅ Avoid using wheel spacers; they alter offset and can overload wheel bearings on this heavy-duty truck.
- ⚠️ 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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2009 Dodge Ram 2500 Regular Cab — Frequently Asked Questions
What is the bolt pattern for a 2009 Dodge Ram 2500 Regular Cab?
The 2009 Dodge Ram 2500 Regular 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 Dodge Ram 2500 Regular Cab have the same bolt pattern as the 2009?
The Dodge Ram 2500 Regular Cab uses the 8x165.1 pattern from 1994 through 2010. Wheels from any of these model years are dimensionally compatible with the 2009, provided the offset and center bore also match.
Can I put aftermarket wheels on my 2009 Dodge Ram 2500 Regular Cab?
Absolutely. Just ensure the aftermarket wheels have a 8x165.1 bolt pattern, an offset near 43mm, and a center bore of at least 121.3mm (using hub rings if larger).
Will wheels from another Dodge fit my 2009 Ram 2500 Regular Cab?
Only if they share the exact same 8x165.1 bolt pattern, a compatible offset, and a center bore equal to or larger than 121.3mm.
Why is matching the 121.3mm center bore important for the 2009 Ram 2500 Regular 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.
How do I measure the bolt pattern on my 2009 Dodge?
The 2009 Ram 2500 Regular Cab uses a 8x165.1 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.
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