2006 MAZDA B-Series Extended Cab Bolt Pattern
Checking fitment for your vehicle? Below you will find the factory bolt pattern (also known as the lug pattern) for the 2006 MAZDA B-Series Extended Cab, along with offset and center bore data.
| Bolt Pattern (Lug Pattern) | 6x139.7 (6x5.5") |
|---|---|
| Lug Nut / Bolt Size | N 12x1.50 |
| Center Bore (CB) | 93.1 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.
2006 B-Series Extended Cab — Year-Specific Fitment Context
The 2006 MAZDA B-Series Extended Cab is in year 2 of 3 using the 6x139.7 pattern (2005–2007). Wheels from any 2005–2007 MAZDA B-Series Extended Cab are cross-compatible with the 2006 model. Across its full production run (2005–2009), the B-Series Extended Cab has also used: 5x114.3.
MAZDA B-Series Extended Cab Bolt Pattern by Year
The table below shows how the B-Series Extended Cab's wheel specifications have changed over the years. The 2006 model year is highlighted.
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 2006 MAZDA B-Series Extended Cab
For your 2006 MAZDA B-Series Extended Cab, the 6x139.7 bolt pattern and 93.1mm center bore are critical. Aftermarket wheels often have a larger center bore, requiring hub-centric rings to prevent vibration and ensure proper load transfer. The 25mm offset is sensitive; deviations affect suspension geometry and tire clearance. Always use lug nuts with the correct 12x1.50 thread pitch and a 60-degree conical seat—using incorrect seat type (e.g., ball seat) can cause wheel loosening. Verify that aftermarket wheels are hub-centric or use rings, and check offset to avoid rubbing. This model shares fitment with 2005–2007 B-Series Extended Cab, but not with earlier or later years using 5x114.3.
Historical Fitment Data Reference
In our dataset, MAZDA B-Series Extended Cab appears from 2005 to 2009 (5 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: 95.0 mm
Quick Tips & Safety Warnings
- ✅ Re-torque lug nuts after 50-100 miles of driving to ensure proper seating.
- ✅ Avoid wheels with offset below 20mm or above 30mm to prevent clearance issues with suspension or fenders.
- ✅ Inspect wheel bore diameter; if larger than 93.1mm, install hub-centric rings to center the wheel precisely.
- ⚠️ 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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2006 MAZDA B-Series Extended Cab — Frequently Asked Questions
What is the bolt pattern for a 2006 MAZDA B-Series Extended Cab?
The 2006 MAZDA B-Series Extended Cab uses a 6x139.7 bolt pattern (also called lug pattern or PCD). The center bore is 93.1mm and the offset is 25mm.
What other years of MAZDA B-Series Extended Cab have the same bolt pattern as the 2006?
The MAZDA B-Series Extended Cab uses the 6x139.7 pattern from 2005 through 2007. Wheels from any of these model years are dimensionally compatible with the 2006, provided the offset and center bore also match.
Why is matching the 93.1mm center bore important for the 2006 B-Series Extended Cab?
The 93.1mm 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.
Will wheels from another MAZDA fit my 2006 B-Series Extended Cab?
Only if they share the exact same 6x139.7 bolt pattern, a compatible offset, and a center bore equal to or larger than 93.1mm.
What does 25mm offset mean for the 2006 B-Series Extended Cab?
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 MAZDA.
How tight should I torque the lug nuts on a 2006 MAZDA B-Series Extended Cab?
Refer to your owner's manual for exact specs, but always tighten the N 12x1.50 hardware in a star or crisscross pattern. Re-torque after the first 50 miles of driving.
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