1992 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 1992 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.
1992 Spacecab — Year-Specific Fitment Context
The 1992 model year marks the beginning of the Isuzu Spacecab's 6x139.7 bolt pattern era, which continued through 1994 (3 consecutive years). Wheels from any 1992–1994 Isuzu Spacecab are cross-compatible with the 1992 model.
Isuzu Spacecab Bolt Pattern by Year
The table below shows how the Spacecab's wheel specifications have changed over the years. The 1992 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 1992 Isuzu Spacecab
For your 1992 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, requiring hub-centric rings to prevent vibration and ensure proper load distribution. Offset sensitivity is high: the factory 38mm offset is optimal; deviations beyond ±10mm may cause rubbing or handling issues. Always use the correct 12x1.5 lug nuts with the proper seat type (conical or ball) to avoid wheel loosening. Never reuse old lug nuts; torque to manufacturer specs and re-torque after 50-100 miles.
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 to 85-95 ft-lb after 50-100 miles of driving.
- ✅ If using aftermarket wheels, verify hub bore and use hub-centric rings if bore >100.1mm.
- ✅ Check for caliper clearance when changing offset; 38mm is safe, but lower offsets may require spacers.
- ⚠️ 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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1992 Isuzu Spacecab — Frequently Asked Questions
What is the bolt pattern for a 1992 Isuzu Spacecab?
The 1992 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 1992?
The Isuzu Spacecab uses the 6x139.7 pattern from 1992 through 1994. Wheels from any of these model years are dimensionally compatible with the 1992, provided the offset and center bore also match.
Why is matching the 100.1mm center bore important for the 1992 Spacecab?
The 100.1mm 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.
Do 1992 Isuzu Spacecabs use lug bolts or lug nuts?
The 1992 Spacecab requires 12x1.5 hardware. Check your specific trim to ensure you use the correct conical or spherical seating.
What is the PCD for a 1992 Isuzu Spacecab?
PCD stands for Pitch Circle Diameter, which is the same as the bolt pattern. For the 1992 Spacecab, the PCD is 6x139.7.
What is the factory wheel offset for a 1992 Isuzu Spacecab?
The OEM offset for the 1992 Spacecab is typically around 38mm. Depending on wheel width, a deviation of ±5mm is usually acceptable, but verify suspension clearance.
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