2004 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 2004 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.
2004 Ram 2500 Regular Cab — Year-Specific Fitment Context
The 2004 Dodge Ram 2500 Regular Cab is in year 11 of 17 using the 8x165.1 pattern (1994–2010). Wheels from any 1994–2010 Dodge Ram 2500 Regular Cab are cross-compatible with the 2004 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 2004 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 2004 Dodge Ram 2500 Regular Cab
When selecting wheels for your 2004 Dodge Ram 2500 Regular Cab, the 8x165.1 bolt pattern is shared with 1994–2010 models, ensuring cross-compatibility. However, the 121.3mm 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 43mm offset maintains correct scrub radius and suspension geometry. Deviating significantly can cause rubbing or bearing wear. Always use 9/16" lug nuts with the correct thread pitch (likely 9/16-18) and ensure they match the wheel's seat type—either conical (60-degree) or ball seat. Mismatched seats can lead to loosening. Safety first: verify all specs before installation.
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 settling.
- ✅ Avoid using universal fit wheels without hub-centric rings; they can cause vibration and stress on studs.
- ✅ Check wheel backspacing: factory is around 4.5 inches; aftermarket wheels with less backspacing may rub on suspension components.
- ⚠️ 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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2004 Dodge Ram 2500 Regular Cab — Frequently Asked Questions
What is the bolt pattern for a 2004 Dodge Ram 2500 Regular Cab?
The 2004 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 2004?
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 2004, provided the offset and center bore also match.
What lug nut size does the 2004 Dodge Ram 2500 Regular Cab use?
The 2004 Dodge Ram 2500 Regular Cab uses 9/16 lug nuts. Always verify the thread pitch and seat type (cone, ball, or flat) match your aftermarket wheels.
How do I measure the bolt pattern on my 2004 Dodge?
The 2004 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.
Do 2004 Dodge Ram 2500 Regular Cabs use lug bolts or lug nuts?
The 2004 Ram 2500 Regular Cab requires 9/16 hardware. Check your specific trim to ensure you use the correct conical or spherical seating.
Will wheels from another Dodge fit my 2004 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.
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