2009 HUMMER H3T Bolt Pattern
Checking fitment for your vehicle? Below you will find the factory bolt pattern (also known as the lug pattern) for the 2009 HUMMER H3T, 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) | 100 mm |
| Offset (ET) | 20 |
| Torque Specs | 80 ft-lbs (108 Nm) |
Imperial Match: 6x139.7 is commonly referred to as 6x5.5" in US Standard.
2009 H3T — Year-Specific Fitment Context
The 2009 model year marks the beginning of the HUMMER H3T's 6x139.7 bolt pattern era, which continued through 2010 (2 consecutive years). Wheels from any 2009–2010 HUMMER H3T are cross-compatible with the 2009 model.
HUMMER H3T Bolt Pattern by Year
The table below shows how the H3T's wheel specifications have changed over the years. The 2009 model year is highlighted.
| Year | Bolt Pattern | Center Bore | Offset |
|---|---|---|---|
| ▸ 2009 | 6x139.7 | 100 | 20 |
| 2010 | 6x139.7 | 100 | 20 |
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 2009 HUMMER H3T
For the 2009 HUMMER H3T, the 6x139.7 bolt pattern is shared with 2009-2010 models. The 100mm center bore requires hub-centric rings for aftermarket wheels to prevent vibration. Offset is sensitive: stick to 20mm ±10mm to avoid rubbing or suspension interference. Always use 12x1.50 lug nuts with the correct seat type (conical or ball seat) to ensure proper clamping force and prevent wheel loosening. Mismatched lug nuts can cause wheel failure. Verify wheel load rating meets or exceeds OEM specifications for safety.
Historical Fitment Data Reference
In our dataset, HUMMER H3T appears from 2009 to 2010 (2 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 proper clamping force.
- ✅ When using aftermarket wheels, ensure hub-centric rings are installed to match the 100mm center bore.
- ✅ Avoid wheels with offset less than 10mm or more than 30mm to prevent clearance issues with brakes and suspension.
- ⚠️ 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).
Ready to upgrade or perform maintenance?
🛒 Shop Tools & Accessories on AmazonAs an Amazon Associate, I earn from qualifying purchases.
2009 HUMMER H3T — Frequently Asked Questions
What is the bolt pattern for a 2009 HUMMER H3T?
The 2009 HUMMER H3T uses a 6x139.7 bolt pattern (also called lug pattern or PCD). The center bore is 100mm and the offset is 20mm.
What other years of HUMMER H3T have the same bolt pattern as the 2009?
The HUMMER H3T uses the 6x139.7 pattern from 2009 through 2010. Wheels from any of these model years are dimensionally compatible with the 2009, provided the offset and center bore also match.
Will wheels from another HUMMER fit my 2009 H3T?
Only if they share the exact same 6x139.7 bolt pattern, a compatible offset, and a center bore equal to or larger than 100mm.
Why is matching the 100mm center bore important for the 2009 H3T?
The 100mm 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.
How tight should I torque the lug nuts on a 2009 HUMMER H3T?
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.
What is the center bore of a 2009 HUMMER H3T?
The factory center bore (hub bore) for the 2009 HUMMER H3T is 100mm. If your aftermarket wheels have a larger hub bore, you will need hub-centric rings to prevent vibration.
Need more vehicle fitment data?
Access our complete, raw JSON/CSV database of over 11,000+ vehicles for your next app or project.
Get the Full Dataset