1999 Mercury Tracer Bolt Pattern
Checking fitment for your vehicle? Below you will find the factory bolt pattern (also known as the lug pattern) for the 1999 Mercury Tracer, along with offset and center bore data.
| Bolt Pattern (Lug Pattern) | 4x100 |
|---|---|
| Lug Nut / Bolt Size | M12x1.5 |
| Center Bore (CB) | 54.1 mm |
| Offset (ET) | 35-45mm |
| Torque Specs | 80 ft-lbs (108 Nm) |
1999 Tracer — Year-Specific Fitment Context
The 1999 model year is the final year of the Mercury Tracer's 4x100 bolt pattern run (since 1992). Wheels from any 1992–1999 Mercury Tracer are cross-compatible with the 1999 model.
Mercury Tracer Bolt Pattern by Year
The table below shows how the Tracer's wheel specifications have changed over the years. The 1999 model year is highlighted.
4x100 Pattern Context
This bolt pattern appears on 461 vehicles in our current database and is considered moderately common.
Examples of other vehicles using 4x100:
Expert Buying Guide for 1999 Mercury Tracer
For your 1999 Mercury Tracer, the 4x100 bolt pattern and 54.1mm center bore are critical. Aftermarket wheels often have a larger center bore (e.g., 73.1mm), requiring hub-centric rings to prevent vibration and ensure proper load transfer. Offset must stay within 35-45mm; deviations risk rubbing on suspension or fenders. Always use M12x1.5 lug nuts with the correct seat type—factory wheels use a conical (60-degree) seat; aftermarket wheels may require ball or flat seats. Incorrect lug nuts can cause wheel loosening. Verify lug nut engagement (at least 6-8 full turns) and torque to manufacturer specs (typically 80-100 ft-lbs). Re-torque after 50 miles of driving.
Historical Fitment Data Reference
In our dataset, Mercury Tracer appears from 1992 to 1999 (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: 80.0 mm
Quick Tips & Safety Warnings
- ✅ Always use hub-centric rings if aftermarket wheels have a larger center bore than 54.1mm to prevent vibrations.
- ✅ Double-check lug nut seat type: conical (60-degree) for factory wheels, but aftermarket may need ball or flat seats.
- ✅ Re-torque lug nuts after 50 miles of driving to ensure proper seating and prevent loosening.
- ⚠️ Verify thread pitch before installation; M12x1.25 and M12x1.5 are not interchangeable.
- ⚠️ This fitment uses a wide offset range. Check brake clearance and fender clearance before buying wheels.
- ⚠️ 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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1999 Mercury Tracer — Frequently Asked Questions
What is the bolt pattern for a 1999 Mercury Tracer?
The 1999 Mercury Tracer uses a 4x100 bolt pattern (also called lug pattern or PCD). The center bore is 54.1mm and the offset is 35-45mmmm.
What other years of Mercury Tracer have the same bolt pattern as the 1999?
The Mercury Tracer uses the 4x100 pattern from 1992 through 1999. Wheels from any of these model years are dimensionally compatible with the 1999, provided the offset and center bore also match.
What is the PCD for a 1999 Mercury Tracer?
PCD stands for Pitch Circle Diameter, which is the same as the bolt pattern. For the 1999 Tracer, the PCD is 4x100.
Can I put aftermarket wheels on my 1999 Mercury Tracer?
Absolutely. Just ensure the aftermarket wheels have a 4x100 bolt pattern, an offset near 35-45mmmm, and a center bore of at least 54.1mm (using hub rings if larger).
What does 35-45mmmm offset mean for the 1999 Tracer?
An offset of 35-45mmmm means the wheel's mounting surface is 35-45mmmm away from its centerline. Changing this value drastically can affect suspension geometry and wheel bearing wear on your Mercury.
Do 1999 Mercury Tracers use lug bolts or lug nuts?
The 1999 Tracer requires M12x1.5 hardware. Check your specific trim to ensure you use the correct conical or spherical seating.
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