2002 Dodge Ram 1500 Quad Cab Bolt Pattern
Checking fitment for your vehicle? Below you will find the factory bolt pattern (also known as the lug pattern) for the 2002 Dodge Ram 1500 Quad 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.
2002 Ram 1500 Quad Cab — Year-Specific Fitment Context
The 2002 Dodge Ram 1500 Quad Cab is in year 5 of 13 using the 5x139.7 pattern (1998–2010). Wheels from any 1998–2010 Dodge Ram 1500 Quad Cab are cross-compatible with the 2002 model.
Dodge Ram 1500 Quad Cab Bolt Pattern by Year
The table below shows how the Ram 1500 Quad Cab's wheel specifications have changed over the years. The 2002 model year is highlighted.
| Year | Bolt Pattern | Center Bore | Offset |
|---|---|---|---|
| 1998 | 5x139.7 | 77.8 | 19 |
| 1999 | 5x139.7 | 77.8 | 19 |
| 2000 | 5x139.7 | 77.8 | 19 |
| 2001 | 5x139.7 | 77.8 | 19 |
| ▸ 2002 | 5x139.7 | 77.8 | 19 |
| 2003 | 5x139.7 | 77.8 | 19 |
| 2004 | 5x139.7 | 77.8 | 19 |
| 2005 | 5x139.7 | 77.8 | 19 |
| 2006 | 5x139.7 | 77.8 | 19 |
| 2007 | 5x139.7 | 77.8 | 19 |
| 2008 | 5x139.7 | 77.8 | 19 |
| 2009 | 5x139.7 | 77.8 | 19 |
| 2010 | 5x139.7 | 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 2002 Dodge Ram 1500 Quad Cab
For your 2002 Dodge Ram 1500 Quad Cab, the 5x139.7 bolt pattern is shared with 1998–2010 models, ensuring 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 transfer. The offset is sensitive; the factory 19mm offset maintains correct scrub radius and suspension geometry. Deviating significantly can cause rubbing or bearing wear. Always verify lug nut thread pitch (9/16-18) and seat type: use conical (60-degree) or ball seat nuts as specified. Never use incorrect seat types, as this can lead to wheel loosening. Safety first: improper fitment compromises handling and braking.
Historical Fitment Data Reference
In our dataset, Dodge Ram 1500 Quad Cab appears from 1998 to 2010 (13 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 ensure proper seating.
- ✅ Avoid using universal fit wheels without hub-centric rings; they can cause vibration and stress on studs.
- ✅ Check for caliper clearance when changing offset or wheel diameter; 2002 Ram 1500 brakes are large and may interfere with some aftermarket wheels.
- ⚠️ 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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2002 Dodge Ram 1500 Quad Cab — Frequently Asked Questions
What is the bolt pattern for a 2002 Dodge Ram 1500 Quad Cab?
The 2002 Dodge Ram 1500 Quad 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 Dodge Ram 1500 Quad Cab have the same bolt pattern as the 2002?
The Dodge Ram 1500 Quad Cab uses the 5x139.7 pattern from 1998 through 2010. Wheels from any of these model years are dimensionally compatible with the 2002, provided the offset and center bore also match.
What lug nut size does the 2002 Dodge Ram 1500 Quad Cab use?
The 2002 Dodge Ram 1500 Quad 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 2002 Dodge?
The 2002 Ram 1500 Quad Cab uses a 5x139.7 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 use spacers on my 2002 Dodge Ram 1500 Quad Cab?
Yes, but ensure the wheel spacers match the 5x139.7 bolt pattern and 77.8mm center bore. Also verify that you have enough thread engagement for your 9/16 hardware.
Why is matching the 77.8mm center bore important for the 2002 Ram 1500 Quad 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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