2008 Isuzu i-370 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 2008 Isuzu i-370 Extended 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) | 100.1 mm |
| Offset (ET) | 38 |
| Torque Specs | 80 ft-lbs (108 Nm) |
2008 i-370 Extended Cab — Year-Specific Fitment Context
The 2008 model year is the final year of the Isuzu i-370 Extended Cab's 6x139.7 bolt pattern run (since 2007). Wheels from any 2007–2008 Isuzu i-370 Extended Cab are cross-compatible with the 2008 model.
Isuzu i-370 Extended Cab Bolt Pattern by Year
The table below shows how the i-370 Extended Cab's wheel specifications have changed over the years. The 2008 model year is highlighted.
| Year | Bolt Pattern | Center Bore | Offset |
|---|---|---|---|
| 2007 | 6x139.7 | 100.1 | 38 |
| ▸ 2008 | 6x139.7 | 100.1 | 38 |
Fitment Notes
The 2008 Isuzu i-370 Extended Cab has a bolt pattern of 6x139.7.
Imperial Conversion: This bolt pattern is commonly referred to as 6x5.5" in imperial units. When searching for aftermarket wheels, you may see them listed as 6x5.5".
This means it is a 6 lug pattern with a circle diameter of 139.7mm. When shopping for aftermarket wheels, ensure the "lug pattern" or "PCD" matches these numbers.
Year-to-Year Fitment Context
In our dataset, Isuzu i-370 Extended Cab appears from 2007 to 2008 (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
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:
2008 Isuzu i-370 Extended Cab — Frequently Asked Questions
What is the bolt pattern for a 2008 Isuzu i-370 Extended Cab?
The 2008 Isuzu i-370 Extended Cab uses a 6x139.7 bolt pattern (also called lug pattern or PCD). The center bore is 100.1mm and the offset is 38mm.
What other years of Isuzu i-370 Extended Cab have the same bolt pattern as the 2008?
The Isuzu i-370 Extended Cab uses the 6x139.7 pattern from 2007 through 2008. Wheels from any of these model years are dimensionally compatible with the 2008, provided the offset and center bore also match.
Do 2008 Isuzu i-370 Extended Cabs use lug bolts or lug nuts?
The 2008 i-370 Extended Cab requires 12x1.5 hardware. Check your specific trim to ensure you use the correct conical or spherical seating.
How do I measure the bolt pattern on my 2008 Isuzu?
The 2008 i-370 Extended Cab uses a 6x139.7 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.
Will wheels from another Isuzu fit my 2008 i-370 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 100.1mm.
What does 38mm offset mean for the 2008 i-370 Extended Cab?
An offset of 38mm means the wheel's mounting surface is 38mm away from its centerline. Changing this value drastically can affect suspension geometry and wheel bearing wear on your Isuzu.
Fitment Checklist Before You Buy Wheels
- 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).
Editorial Fitment Notes
Isuzu i-370 Extended Cab is generally consistent in bolt-pattern records across model years, but offset and hardware should still be validated before purchase.
- Observed production years in our database: 2007-2008 (2 model years).
- Observed bolt-pattern variants: 1 (6x139.7).
- Observed total offset span across years: 0.0 mm.
- Observed center-bore variants: 1 | lug-size variants: 1.
Data Quality & Review
Source note: Compiled from manufacturer fitment references, historical wheel data, and internal normalization rules.
Last reviewed: 2026-05-26 | Reviewed by: Bolt Pattern HQ Editorial Team
If you find a discrepancy for 2008 Isuzu i-370 Extended Cab, please report it via our About page contact so we can verify and update this record.