1998 Saab 900 Bolt Pattern
Checking fitment for your vehicle? Below you will find the factory bolt pattern (also known as the lug pattern) for the 1998 Saab 900, along with offset and center bore data.
| Bolt Pattern (Lug Pattern) | 5x110 |
|---|---|
| Lug Nut / Bolt Size | B 12x1.50 |
| Center Bore (CB) | 65.1 mm |
| Offset (ET) | 40 |
| Torque Specs | 80 ft-lbs (108 Nm) |
1998 900 — Year-Specific Fitment Context
The 1998 model year is the final year of the Saab 900's 5x110 bolt pattern run (since 1995). Wheels from any 1995–1998 Saab 900 are cross-compatible with the 1998 model. Across its full production run (1992–1998), the 900 has also used: 4x108.
Saab 900 Bolt Pattern by Year
The table below shows how the 900's wheel specifications have changed over the years. The 1998 model year is highlighted.
5x110 Pattern Context
This bolt pattern appears on 126 vehicles in our current database and is considered uncommon.
Examples of other vehicles using 5x110:
Expert Buying Guide for 1998 Saab 900
For your 1998 Saab 900, the bolt pattern is 5x110 with a center bore of 65.1mm. When selecting aftermarket wheels, ensure the center bore matches or use hub-centric rings to prevent vibration. The offset is critical; the factory offset is 40mm, and deviations beyond ±5mm may cause rubbing or clearance issues. Always use lug nuts with the correct thread pitch (12x1.50) and seat type (conical or ball seat, depending on your wheel). Mismatched lug nuts can lead to wheel loosening. Verify that aftermarket wheels are load-rated for your vehicle.
Historical Fitment Data Reference
In our dataset, Saab 900 appears from 1992 to 1998 (7 model years). Across model years, this model appears with 2 bolt patterns (4x108, 5x110).
- Observed bolt-pattern variants for this model: 2
- Observed center-bore variants for this model: 1
- Observed lug-size variants for this model: 2
- Observed total offset span across years: 1.0 mm
Quick Tips & Safety Warnings
- ✅ Re-torque lug nuts after 50-100 miles of driving to ensure proper seating.
- ✅ Avoid using universal fit wheels without hub-centric rings; the 65.1mm bore is specific.
- ✅ Check brake caliper clearance when using wheels with offset below 35mm or above 45mm.
- ⚠️ 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).
- ⚠️ This model has multiple bolt-pattern records across years. Match wheels to exact year/trim before purchase.
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1998 Saab 900 — Frequently Asked Questions
What is the bolt pattern for a 1998 Saab 900?
The 1998 Saab 900 uses a 5x110 bolt pattern (also called lug pattern or PCD). The center bore is 65.1mm and the offset is 40mm.
What other years of Saab 900 have the same bolt pattern as the 1998?
The Saab 900 uses the 5x110 pattern from 1995 through 1998. Wheels from any of these model years are dimensionally compatible with the 1998, provided the offset and center bore also match.
What is the center bore of a 1998 Saab 900?
The factory center bore (hub bore) for the 1998 Saab 900 is 65.1mm. If your aftermarket wheels have a larger hub bore, you will need hub-centric rings to prevent vibration.
How do I measure the bolt pattern on my 1998 Saab?
The 1998 900 uses a 5x110 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.
Can I use spacers on my 1998 Saab 900?
Yes, but ensure the wheel spacers match the 5x110 bolt pattern and 65.1mm center bore. Also verify that you have enough thread engagement for your B 12x1.50 hardware.
What lug nut size does the 1998 Saab 900 use?
The 1998 Saab 900 uses B 12x1.50 lug nuts. Always verify the thread pitch and seat type (cone, ball, or flat) match your aftermarket wheels.
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