2003 INFINITI QX Bolt Pattern
Checking fitment for your vehicle? Below you will find the factory bolt pattern (also known as the lug pattern) for the 2003 INFINITI QX, along with offset and center bore data.
| Bolt Pattern (Lug Pattern) | 6x139.7 (6x5.5") |
|---|---|
| Lug Nut / Bolt Size | N 12x1.25 |
| Center Bore (CB) | 78.1 mm |
| Offset (ET) | 25 |
| Torque Specs | 80 ft-lbs (108 Nm) |
Imperial Match: 6x139.7 is commonly referred to as 6x5.5" in US Standard.
2003 QX — Year-Specific Fitment Context
The 2003 model year marks the beginning of the INFINITI QX's 6x139.7 bolt pattern era, which continued through 2006 (4 consecutive years). Wheels from any 2003–2006 INFINITI QX are cross-compatible with the 2003 model. Note: the 2002 model used a different pattern (5x114.3), so its wheels are NOT interchangeable with the 2003. Across its full production run (1997–2013), the QX has also used: 5x114.3.
INFINITI QX Bolt Pattern by Year
The table below shows how the QX's wheel specifications have changed over the years. The 2003 model year is highlighted.
| Year | Bolt Pattern | Center Bore | Offset |
|---|---|---|---|
| 1997 | 5x114.3 | 66.1 | 40-50 |
| 1998 | 5x114.3 | 66.1 | 40-50 |
| 1999 | 5x114.3 | 66.1 | 40-50 |
| 2000 | 5x114.3 | 66.1 | 40-50 |
| 2001 | 5x114.3 | 66.1 | 40-50 |
| 2002 | 5x114.3 | 66.1 | 40-50 |
| ▸ 2003 | 6x139.7 | 78.1 | 25 |
| 2004 | 6x139.7 | 78.1 | 25 |
| 2005 | 6x139.7 | 78.1 | 25 |
| 2006 | 6x139.7 | 78.1 | 25 |
| 2007 | 5x114.3 | 66.1 | 40 |
| 2008 | 5x114.3 | 66.1 | 40 |
| 2009 | 5x114.3 | 66.1 | 40 |
| 2010 | 5x114.3 | 66.1 | 40 |
| 2011 | 5x114.3 | 66.1 | 40 |
| 2012 | 5x114.3 | 66.1 | 40 |
| 2013 | 5x114.3 | 66.1 | 40 |
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 2003 INFINITI QX
For your 2003 INFINITI QX, the 6x139.7 bolt pattern and 78.1mm center bore are critical. Aftermarket wheels often have a larger bore, requiring hub-centric rings to prevent vibration and ensure proper load distribution. The offset is sensitive; stick to 25mm ±5mm to avoid rubbing or clearance issues. Always use the correct lug nuts: M12x1.25 thread pitch with a cone or ball seat—never use acorn or flat-seat nuts. Improper lug nuts can cause wheel loosening or damage. Re-torque after 50-100 miles of driving.
Historical Fitment Data Reference
In our dataset, INFINITI QX appears from 1997 to 2013 (17 model years). Across model years, this model appears with 2 bolt patterns (5x114.3, 6x139.7).
- Observed bolt-pattern variants for this model: 2
- Observed center-bore variants for this model: 2
- Observed lug-size variants for this model: 2
- Observed total offset span across years: 90.0 mm
Quick Tips & Safety Warnings
- ✅ Re-torque lug nuts to 80-90 ft-lbs after 50-100 miles, then periodically check.
- ✅ Avoid using wheels from 2002 QX (5x114.3) or earlier; they won't fit.
- ✅ If using aftermarket wheels, ensure hub-centric rings match 78.1mm bore exactly.
- ⚠️ Verify thread pitch before installation; M12x1.25 and M12x1.5 are not interchangeable.
- ⚠️ Torque lugs in a star pattern to 80 ft-lbs (108 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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2003 INFINITI QX — Frequently Asked Questions
What is the bolt pattern for a 2003 INFINITI QX?
The 2003 INFINITI QX uses a 6x139.7 bolt pattern (also called lug pattern or PCD). The center bore is 78.1mm and the offset is 25mm.
What other years of INFINITI QX have the same bolt pattern as the 2003?
The INFINITI QX uses the 6x139.7 pattern from 2003 through 2006. Wheels from any of these model years are dimensionally compatible with the 2003, provided the offset and center bore also match.
Can I use 2002 INFINITI QX wheels on a 2003?
No. The 2002 QX used a 5x114.3 bolt pattern, which differs from the 2003's 6x139.7. They are not interchangeable.
What is the PCD for a 2003 INFINITI QX?
PCD stands for Pitch Circle Diameter, which is the same as the bolt pattern. For the 2003 QX, the PCD is 6x139.7.
Can I put aftermarket wheels on my 2003 INFINITI QX?
Absolutely. Just ensure the aftermarket wheels have a 6x139.7 bolt pattern, an offset near 25mm, and a center bore of at least 78.1mm (using hub rings if larger).
What does 25mm offset mean for the 2003 QX?
An offset of 25mm means the wheel's mounting surface is 25mm away from its centerline. Changing this value drastically can affect suspension geometry and wheel bearing wear on your INFINITI.
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