1994 Isuzu Spacecab Bolt Pattern
Checking fitment for your vehicle? Below you will find the factory bolt pattern (also known as the lug pattern) for the 1994 Isuzu Spacecab, 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) |
Imperial Match: 6x139.7 is commonly referred to as 6x5.5" in US Standard.
1994 Spacecab — Year-Specific Fitment Context
The 1994 model year is the final year of the Isuzu Spacecab's 6x139.7 bolt pattern run (since 1992). Wheels from any 1992–1994 Isuzu Spacecab are cross-compatible with the 1994 model.
Isuzu Spacecab Bolt Pattern by Year
The table below shows how the Spacecab's wheel specifications have changed over the years. The 1994 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 1994 Isuzu Spacecab
For your 1994 Isuzu Spacecab, the 6x139.7 bolt pattern is shared with 1992-1994 models. The 100.1mm center bore is critical; aftermarket wheels often have a larger bore (e.g., 108mm), requiring hub-centric rings to prevent vibration and ensure proper load transfer. Offset is sensitive: stock is 38mm. Deviating more than ±10mm may cause rubbing or clearance issues. Always use lug nuts with the correct 12x1.5 thread pitch and matching seat type (cone or ball). Mixing seat types can lead to wheel loosening. Safety first: verify all specs before installation.
Historical Fitment Data Reference
In our dataset, Isuzu Spacecab appears from 1992 to 1994 (3 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.
- ✅ Check for caliper clearance when using wheels with offset below 28mm or above 48mm.
- ✅ Avoid using universal fit wheels without hub-centric rings; they can cause steering wheel vibration.
- ⚠️ 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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1994 Isuzu Spacecab — Frequently Asked Questions
What is the bolt pattern for a 1994 Isuzu Spacecab?
The 1994 Isuzu Spacecab 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 Spacecab have the same bolt pattern as the 1994?
The Isuzu Spacecab uses the 6x139.7 pattern from 1992 through 1994. Wheels from any of these model years are dimensionally compatible with the 1994, provided the offset and center bore also match.
What does 38mm offset mean for the 1994 Spacecab?
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.
Can I use spacers on my 1994 Isuzu Spacecab?
Yes, but ensure the wheel spacers match the 6x139.7 bolt pattern and 100.1mm center bore. Also verify that you have enough thread engagement for your 12x1.5 hardware.
Will wheels from another Isuzu fit my 1994 Spacecab?
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.
Can I put aftermarket wheels on my 1994 Isuzu Spacecab?
Absolutely. Just ensure the aftermarket wheels have a 6x139.7 bolt pattern, an offset near 38mm, and a center bore of at least 100.1mm (using hub rings if larger).
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