1998 HUMMER H1 Bolt Pattern
Checking fitment for your vehicle? Below you will find the factory bolt pattern (also known as the lug pattern) for the 1998 HUMMER H1, along with offset and center bore data.
| Bolt Pattern (Lug Pattern) | 8x165.1 (8x6.5") |
|---|---|
| Lug Nut / Bolt Size | N 14x1.50 |
| Center Bore (CB) | 117 mm |
| Offset (ET) | 10 |
| Torque Specs | 140 ft-lbs (190 Nm) |
Imperial Match: 8x165.1 is commonly referred to as 8x6.5" in US Standard.
1998 H1 — Year-Specific Fitment Context
The 1998 HUMMER H1 is in year 6 of 14 using the 8x165.1 pattern (1993–2006). Wheels from any 1993–2006 HUMMER H1 are cross-compatible with the 1998 model.
HUMMER H1 Bolt Pattern by Year
The table below shows how the H1's wheel specifications have changed over the years. The 1998 model year is highlighted.
8x165.1 Pattern Context
This bolt pattern appears on 846 vehicles in our current database and is considered common.
Examples of other vehicles using 8x165.1:
Expert Buying Guide for 1998 HUMMER H1
For your 1998 HUMMER H1, the 8x165.1 bolt pattern is shared across 1993–2006 models, ensuring cross-compatibility. However, the 117mm center bore is critical: aftermarket wheels often have a larger bore, requiring hub-centric rings to prevent vibration and ensure proper load distribution. Offset is sensitive—stick to 10mm ±5mm to avoid rubbing or suspension interference. Always use lug nuts with the correct thread pitch (14x1.50) and seat type: factory wheels use a ball seat, while aftermarket may require cone or acorn seats. Mismatched seating can cause lug nuts to loosen or fail. Safety first: verify all specs before installation.
Historical Fitment Data Reference
In our dataset, HUMMER H1 appears from 1993 to 2006 (13 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 ensure proper seating.
- ✅ When using aftermarket wheels, always install hub-centric rings to match the 117mm center bore.
- ✅ Avoid wheels with offset beyond 0–20mm; extreme offsets can overload wheel bearings and cause handling issues.
- ⚠️ Torque lugs in a star pattern to 140 ft-lbs (190 Nm), then re-check torque after 50-100 km (30-60 miles).
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1998 HUMMER H1 — Frequently Asked Questions
What is the bolt pattern for a 1998 HUMMER H1?
The 1998 HUMMER H1 uses a 8x165.1 bolt pattern (also called lug pattern or PCD). The center bore is 117mm and the offset is 10mm.
What other years of HUMMER H1 have the same bolt pattern as the 1998?
The HUMMER H1 uses the 8x165.1 pattern from 1993 through 2006. Wheels from any of these model years are dimensionally compatible with the 1998, provided the offset and center bore also match.
Why is matching the 117mm center bore important for the 1998 H1?
The 117mm 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.
Will wheels from another HUMMER fit my 1998 H1?
Only if they share the exact same 8x165.1 bolt pattern, a compatible offset, and a center bore equal to or larger than 117mm.
What is the factory wheel offset for a 1998 HUMMER H1?
The OEM offset for the 1998 H1 is typically around 10mm. Depending on wheel width, a deviation of ±5mm is usually acceptable, but verify suspension clearance.
Can I use spacers on my 1998 HUMMER H1?
Yes, but ensure the wheel spacers match the 8x165.1 bolt pattern and 117mm center bore. Also verify that you have enough thread engagement for your N 14x1.50 hardware.
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