2004 Chevrolet Colorado 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 Chevrolet Colorado Regular Cab, along with offset and center bore data.
| Bolt Pattern (Lug Pattern) | 6x139.7 (6x5.5") |
|---|---|
| Lug Nut / Bolt Size | 12x1.5 |
| Center Bore (CB) | 100.3 mm |
| Offset (ET) | 33 |
| Torque Specs | 80 ft-lbs (108 Nm) |
Imperial Match: 6x139.7 is commonly referred to as 6x5.5" in US Standard.
2004 Colorado Regular Cab — Year-Specific Fitment Context
The 2004 model year marks the beginning of the Chevrolet Colorado Regular Cab's 6x139.7 bolt pattern era, which continued through 2012 (9 consecutive years). Wheels from any 2004–2012 Chevrolet Colorado Regular Cab are cross-compatible with the 2004 model.
Chevrolet Colorado Regular Cab Bolt Pattern by Year
The table below shows how the Colorado Regular Cab's wheel specifications have changed over the years. The 2004 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 2004 Chevrolet Colorado Regular Cab
For the 2004 Chevrolet Colorado Regular Cab, the 6x139.7 bolt pattern is shared with 2004–2012 models, ensuring cross-compatibility. Critical fitment factors include the 100.3mm center bore—aftermarket wheels often have a larger bore, requiring hub-centric rings to prevent vibration and ensure proper load transfer. The 33mm offset is sensitive; deviations affect scrub radius and clearance. Always use 12x1.5 lug nuts with the correct seat type (conical 60-degree for most aftermarket wheels, ball seat for OEM). Improper lug nut seating can lead to wheel loss. Verify offset and bore before purchase.
Historical Fitment Data Reference
In our dataset, Chevrolet Colorado Regular Cab appears from 2004 to 2012 (9 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 maintain clamping force.
- ✅ Avoid using wheels from other GM models with different center bores (e.g., 78.1mm) without hub rings.
- ✅ Check inner clearance for aftermarket wheels; the 33mm offset may require spacers for wider tires.
- ⚠️ 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).
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2004 Chevrolet Colorado Regular Cab — Frequently Asked Questions
What is the bolt pattern for a 2004 Chevrolet Colorado Regular Cab?
The 2004 Chevrolet Colorado Regular Cab uses a 6x139.7 bolt pattern (also called lug pattern or PCD). The center bore is 100.3mm and the offset is 33mm.
What other years of Chevrolet Colorado Regular Cab have the same bolt pattern as the 2004?
The Chevrolet Colorado Regular Cab uses the 6x139.7 pattern from 2004 through 2012. Wheels from any of these model years are dimensionally compatible with the 2004, provided the offset and center bore also match.
What is the center bore of a 2004 Chevrolet Colorado Regular Cab?
The factory center bore (hub bore) for the 2004 Chevrolet Colorado Regular Cab is 100.3mm. If your aftermarket wheels have a larger hub bore, you will need hub-centric rings to prevent vibration.
Why is matching the 100.3mm center bore important for the 2004 Colorado Regular Cab?
The 100.3mm 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.
What lug nut size does the 2004 Chevrolet Colorado Regular Cab use?
The 2004 Chevrolet Colorado Regular Cab uses 12x1.5 lug nuts. Always verify the thread pitch and seat type (cone, ball, or flat) match your aftermarket wheels.
What is the PCD for a 2004 Chevrolet Colorado Regular Cab?
PCD stands for Pitch Circle Diameter, which is the same as the bolt pattern. For the 2004 Colorado Regular Cab, the PCD is 6x139.7.
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