1997 Mitsubishi Montero Sport Bolt Pattern
Checking fitment for your vehicle? Below you will find the factory bolt pattern (also known as the lug pattern) for the 1997 Mitsubishi Montero Sport, 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) | 108.0 mm |
| Offset (ET) | 23 |
| Torque Specs | 80 ft-lbs (108 Nm) |
Imperial Match: 6x139.7 is commonly referred to as 6x5.5" in US Standard.
1997 Montero Sport — Year-Specific Fitment Context
The 1997 model year marks the beginning of the Mitsubishi Montero Sport's 6x139.7 bolt pattern era, which continued through 2004 (8 consecutive years). Wheels from any 1997–2004 Mitsubishi Montero Sport are cross-compatible with the 1997 model.
Mitsubishi Montero Sport Bolt Pattern by Year
The table below shows how the Montero Sport's wheel specifications have changed over the years. The 1997 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 1997 Mitsubishi Montero Sport
For your 1997 Mitsubishi Montero Sport, the 6x139.7 bolt pattern is shared with 1997–2004 models, ensuring cross-compatibility. However, the 108.0mm center bore is critical: aftermarket wheels often have a larger bore, requiring hub-centric rings to prevent vibration and ensure proper load transfer. The stock offset is 23mm; deviations beyond ±10mm may cause rubbing or clearance issues. Always use lug nuts with the correct thread pitch (12x1.50) and seat type—factory wheels use a conical (60-degree) seat, while aftermarket wheels may require ball or shank-style nuts. Never mix seat types; improper engagement can lead to wheel loss. Re-torque after 50–100 miles of driving.
Historical Fitment Data Reference
In our dataset, Mitsubishi Montero Sport appears from 1997 to 2004 (8 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 80–90 ft-lbs after 50–100 miles to account for settling.
- ✅ Avoid wheels with offset below 13mm or above 33mm to prevent rubbing on suspension or body.
- ✅ Verify aftermarket wheels include hub-centric rings; without them, vibrations may occur at highway speeds.
- ⚠️ 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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1997 Mitsubishi Montero Sport — Frequently Asked Questions
What is the bolt pattern for a 1997 Mitsubishi Montero Sport?
The 1997 Mitsubishi Montero Sport uses a 6x139.7 bolt pattern (also called lug pattern or PCD). The center bore is 108.0mm and the offset is 23mm.
What other years of Mitsubishi Montero Sport have the same bolt pattern as the 1997?
The Mitsubishi Montero Sport uses the 6x139.7 pattern from 1997 through 2004. Wheels from any of these model years are dimensionally compatible with the 1997, provided the offset and center bore also match.
How tight should I torque the lug nuts on a 1997 Mitsubishi Montero Sport?
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 factory wheel offset for a 1997 Mitsubishi Montero Sport?
The OEM offset for the 1997 Montero Sport is typically around 23mm. Depending on wheel width, a deviation of ±5mm is usually acceptable, but verify suspension clearance.
Why is matching the 108.0mm center bore important for the 1997 Montero Sport?
The 108.0mm 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 is the center bore of a 1997 Mitsubishi Montero Sport?
The factory center bore (hub bore) for the 1997 Mitsubishi Montero Sport is 108.0mm. If your aftermarket wheels have a larger hub bore, you will need hub-centric rings to prevent vibration.
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