2018 FIAT 500c Bolt Pattern
Checking fitment for your vehicle? Below you will find the factory bolt pattern (also known as the lug pattern) for the 2018 FIAT 500c, along with offset and center bore data.
| Bolt Pattern (Lug Pattern) | 4x98 |
|---|---|
| Lug Nut / Bolt Size | 12x1.25 |
| Center Bore (CB) | 58.1 mm |
| Offset (ET) | 35 |
| Torque Specs | 80 ft-lbs (108 Nm) |
2018 500c — Year-Specific Fitment Context
The 2018 FIAT 500c is in year 5 of 6 using the 4x98 pattern (2014–2019). Wheels from any 2014–2019 FIAT 500c are cross-compatible with the 2018 model.
FIAT 500c Bolt Pattern by Year
The table below shows how the 500c's wheel specifications have changed over the years. The 2018 model year is highlighted.
4x98 Pattern Context
This bolt pattern appears on 35 vehicles in our current database and is considered uncommon.
Examples of other vehicles using 4x98:
Expert Buying Guide for 2018 FIAT 500c
For your 2018 FIAT 500c, the bolt pattern is 4x98 with a center bore of 58.1mm. When selecting aftermarket wheels, ensure they have a center bore of at least 58.1mm; use hub-centric rings to reduce vibration and ensure proper load distribution. The recommended offset is 35mm; deviations beyond ±5mm may cause rubbing or clearance issues. Always use lug nuts with the correct thread pitch (12x1.25) and seat type—either conical (60-degree) or ball seat, matching the wheel's design. Improper lug nuts can lead to wheel loosening. Verify that aftermarket wheels are load-rated for your vehicle's weight.
Historical Fitment Data Reference
In our dataset, FIAT 500c appears from 2014 to 2019 (6 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: 2
- Observed total offset span across years: 7.0 mm
Quick Tips & Safety Warnings
- ✅ Re-torque lug nuts after 50-100 miles of driving to maintain proper clamping force.
- ✅ Avoid using universal fit wheels without hub-centric rings; they can cause vibration and stress on studs.
- ✅ Check for brake caliper clearance when using aftermarket wheels, as offset changes can cause interference.
- ⚠️ 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 bolt pattern is less common in our dataset. Verify wheel availability and hub specs before ordering.
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2018 FIAT 500c — Frequently Asked Questions
What is the bolt pattern for a 2018 FIAT 500c?
The 2018 FIAT 500c uses a 4x98 bolt pattern (also called lug pattern or PCD). The center bore is 58.1mm and the offset is 35mm.
What other years of FIAT 500c have the same bolt pattern as the 2018?
The FIAT 500c uses the 4x98 pattern from 2014 through 2019. Wheels from any of these model years are dimensionally compatible with the 2018, provided the offset and center bore also match.
What is the center bore of a 2018 FIAT 500c?
The factory center bore (hub bore) for the 2018 FIAT 500c is 58.1mm. If your aftermarket wheels have a larger hub bore, you will need hub-centric rings to prevent vibration.
What lug nut size does the 2018 FIAT 500c use?
The 2018 FIAT 500c uses 12x1.25 lug nuts. Always verify the thread pitch and seat type (cone, ball, or flat) match your aftermarket wheels.
What does 35mm offset mean for the 2018 500c?
An offset of 35mm means the wheel's mounting surface is 35mm away from its centerline. Changing this value drastically can affect suspension geometry and wheel bearing wear on your FIAT.
Why is matching the 58.1mm center bore important for the 2018 500c?
The 58.1mm 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.
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