Mercury Mountaineer Wheel Lug Pattern, Offset & Rim Size Guide
The Mercury Mountaineer features a specific wheel lug pattern essential for correct wheel fitment. Understanding the exact lug count and pitch circle diameter (PCD) ensures wheels match the vehicle's mounting points. This guide provides detailed Mercury Mountaineer lug patterns sorted by production year for accurate reference.\n\nAlong with the lug pattern, offset (ET) and center bore dimensions are critical to wheel compatibility. Offset affects wheel positioning relative to the suspension, while the center bore must properly align with the hub for secure fitment. Rim sizes vary across Mountaineer model years and trims, and this catalog details all relevant wheel sizes.\n\nUsing this year-sorted Mercury Mountaineer wheel lug pattern catalog will help you select compatible aftermarket or replacement wheels. Correct fitment ensures driving safety, prevents damage to wheel components, and maintains optimal vehicle performance.\n\nRefer to the specific lug pattern, offset ET, center bore, and rim size data for your Mercury Mountaineer year to find wheels that deliver proper mounting and balanced aesthetics.
| Make / model / trim | Year | Tire | Rim width (in) | Rim diam. (in) | Bolt pattern | Offset ET | Bore DIA | Mounting |
|---|---|---|---|---|---|---|---|---|
| Mercury Mountaineer 4.0 V6 | 2019 | 255/55R18 | 8 | 18 | 5×114.3 | 35 | 70.5 | 1/2 |
| Mercury Mountaineer 4.6L V8 | 2019 | 255/55R18 | 7.5 | 17 | 5×114.3 | 44 | 70.5 | 1/2 |
| Mercury Mountaineer 5.0L V8 | 2019 | 255/55R18 | 7.5 | 17 | 5×114.3 | 44 | 70.5 | 1/2 |
| Mercury Mountaineer 4.0 V6 | 2018 | 255/55R18 | 8 | 18 | 5×114.3 | 35 | 70.5 | 1/2 |
| Mercury Mountaineer 4.6L V8 | 2018 | 255/55R18 | 7.5 | 17 | 5×114.3 | 44 | 70.5 | 1/2 |
| Mercury Mountaineer 5.0L V8 | 2018 | 255/55R18 | 7.5 | 17 | 5×114.3 | 44 | 70.5 | 1/2 |
| Mercury Mountaineer 4.0 V6 | 2017 | 255/55R18 | 8 | 18 | 5×114.3 | 35 | 70.5 | 1/2 |
| Mercury Mountaineer 4.6L V8 | 2017 | 255/55R18 | 7.5 | 17 | 5×114.3 | 44 | 70.5 | 1/2 |
| Mercury Mountaineer 5.0L V8 | 2017 | 255/55R18 | 7.5 | 17 | 5×114.3 | 44 | 70.5 | 1/2 |
| Mercury Mountaineer 4.0 V6 | 2016 | 255/55R18 | 8 | 18 | 5×114.3 | 35 | 70.5 | 1/2 |
| Mercury Mountaineer 4.6L V8 | 2016 | 255/55R18 | 7.5 | 17 | 5×114.3 | 44 | 70.5 | 1/2 |
| Mercury Mountaineer 5.0L V8 | 2016 | 255/55R18 | 7.5 | 17 | 5×114.3 | 44 | 70.5 | 1/2 |
| Mercury Mountaineer 4.0 V6 | 2015 | 255/55R18 | 8 | 18 | 5×114.3 | 35 | 70.5 | 1/2 |
| Mercury Mountaineer 4.6L V8 | 2015 | 255/55R18 | 7.5 | 17 | 5×114.3 | 44 | 70.5 | 1/2 |
| Mercury Mountaineer 5.0L V8 | 2015 | 255/55R18 | 7.5 | 17 | 5×114.3 | 44 | 70.5 | 1/2 |
| Mercury Mountaineer 4.0 V6 | 2014 | 255/55R18 | 8 | 18 | 5×114.3 | 35 | 70.5 | 1/2 |
| Mercury Mountaineer 4.6L V8 | 2014 | 255/55R18 | 7.5 | 17 | 5×114.3 | 44 | 70.5 | 1/2 |
| Mercury Mountaineer 5.0L V8 | 2014 | 255/55R18 | 7.5 | 17 | 5×114.3 | 44 | 70.5 | 1/2 |
| Mercury Mountaineer 4.0 V6 | 2013 | 255/55R18 | 8 | 18 | 5×114.3 | 35 | 70.5 | 1/2 |
| Mercury Mountaineer 4.6L V8 | 2013 | 255/55R18 | 7.5 | 17 | 5×114.3 | 44 | 70.5 | 1/2 |
| Mercury Mountaineer 5.0L V8 | 2013 | 255/55R18 | 7.5 | 17 | 5×114.3 | 44 | 70.5 | 1/2 |
| Mercury Mountaineer 4.0 V6 | 2012 | 255/55R18 | 8 | 18 | 5×114.3 | 35 | 70.5 | 1/2 |
| Mercury Mountaineer 4.6L V8 | 2012 | 255/55R18 | 7.5 | 17 | 5×114.3 | 44 | 70.5 | 1/2 |
| Mercury Mountaineer 5.0L V8 | 2012 | 255/55R18 | 7.5 | 17 | 5×114.3 | 44 | 70.5 | 1/2 |
| Mercury Mountaineer 4.0 V6 | 2011 | 255/55R18 | 8 | 18 | 5×114.3 | 35 | 70.5 | 1/2 |
| Mercury Mountaineer 4.6L V8 | 2011 | 255/55R18 | 7.5 | 17 | 5×114.3 | 44 | 70.5 | 1/2 |
| Mercury Mountaineer 5.0L V8 | 2011 | 255/55R18 | 7.5 | 17 | 5×114.3 | 44 | 70.5 | 1/2 |
| Mercury Mountaineer 4.0 V6 | 2010 | 255/55R18 | 8 | 18 | 5×114.3 | 35 | 70.5 | 1/2 |
| Mercury Mountaineer 4.6L V8 | 2010 | 255/55R18 | 7.5 | 17 | 5×114.3 | 44 | 70.5 | 1/2 |
| Mercury Mountaineer 5.0L V8 | 2010 | 255/55R18 | 7.5 | 17 | 5×114.3 | 44 | 70.5 | 1/2 |
| Mercury Mountaineer 4.0 V6 | 2009 | 255/55R18 | 8 | 18 | 5×114.3 | 35 | 70.5 | 1/2 |
| Mercury Mountaineer 4.6L V8 | 2009 | 255/55R18 | 7.5 | 17 | 5×114.3 | 44 | 70.5 | 1/2 |
| Mercury Mountaineer 5.0L V8 | 2009 | 255/55R18 | 7.5 | 17 | 5×114.3 | 44 | 70.5 | 1/2 |
| Mercury Mountaineer 4.0 V6 | 2008 | 255/55R18 | 8 | 18 | 5×114.3 | 35 | 70.5 | 1/2 |
| Mercury Mountaineer 4.6L V8 | 2008 | 255/55R18 | 7.5 | 17 | 5×114.3 | 44 | 70.5 | 1/2 |
| Mercury Mountaineer 5.0L V8 | 2008 | 255/55R18 | 7.5 | 17 | 5×114.3 | 44 | 70.5 | 1/2 |
| Mercury Mountaineer 4.0 V6 | 2007 | 255/55R18 | 8 | 18 | 5×114.3 | 35 | 70.5 | 1/2 |
| Mercury Mountaineer 4.6L V8 | 2007 | 255/55R18 | 7.5 | 17 | 5×114.3 | 44 | 70.5 | 1/2 |
| Mercury Mountaineer 5.0L V8 | 2007 | 255/55R18 | 7.5 | 17 | 5×114.3 | 44 | 70.5 | 1/2 |
| Mercury Mountaineer 4.0 V6 | 2006 | 255/55R18 | 8 | 18 | 5×114.3 | 35 | 70.5 | 1/2 |
| Mercury Mountaineer 4.6L V8 | 2006 | 255/55R18 | 7.5 | 17 | 5×114.3 | 44 | 70.5 | 1/2 |
| Mercury Mountaineer 5.0L V8 | 2006 | 255/55R18 | 7.5 | 17 | 5×114.3 | 44 | 70.5 | 1/2 |
| Mercury Mountaineer 4.0 V6 | 2005 | 255/55R18 | 8 | 18 | 5×114.3 | 35 | 70.5 | 1/2 |
| Mercury Mountaineer 4.6L V8 | 2005 | 255/55R18 | 7.5 | 17 | 5×114.3 | 44 | 70.5 | 1/2 |
| Mercury Mountaineer 5.0L V8 | 2005 | 255/55R18 | 7.5 | 17 | 5×114.3 | 44 | 70.5 | 1/2 |
| Mercury Mountaineer 4.0 V6 | 2004 | 255/55R18 | 8 | 18 | 5×114.3 | 35 | 70.5 | 1/2 |
| Mercury Mountaineer 4.6L V8 | 2004 | 255/55R18 | 7.5 | 17 | 5×114.3 | 44 | 70.5 | 1/2 |
| Mercury Mountaineer 5.0L V8 | 2004 | 255/55R18 | 7.5 | 17 | 5×114.3 | 44 | 70.5 | 1/2 |
| Mercury Mountaineer 4.0 V6 | 2003 | 255/55R18 | 8 | 18 | 5×114.3 | 35 | 70.5 | 1/2 |
| Mercury Mountaineer 4.6L V8 | 2003 | 255/55R18 | 7.5 | 17 | 5×114.3 | 44 | 70.5 | 1/2 |
| Mercury Mountaineer 5.0L V8 | 2003 | 255/55R18 | 7.5 | 17 | 5×114.3 | 44 | 70.5 | 1/2 |
FAQ
- What is the Mercury Mountaineer wheel lug pattern specification?
- The Mercury Mountaineer typically uses a 5-lug pattern with a specific PCD that varies by year; consulting the year-specific catalog ensures exact measurements.
- Why is wheel offset (ET) important for Mercury Mountaineer fitment?
- Wheel offset determines how far the wheel sits inward or outward relative to the mounting surface, affecting clearance with brakes and suspension components.
- How do I find the correct center bore for replacement wheels on my Mountaineer?
- Refer to the year and model-specific center bore dimensions listed in the Mercury Mountaineer wheel reference to ensure wheels fit snugly on the hub.
Tire size calculatorShow
Compare two tire sizes — diameter, speedometer error, and clearance change.
| Size 1 | Size 2 | Diff | Diff(%) | |
|---|---|---|---|---|
| Diameter | 25.0" | 25.4" | 0.5" | 1.89% |
| Width | 7.7" | 8.5" | 0.8" | 10.26% |
| Circumference | 78.4" | 79.9" | 1.5" | 1.86% |
| Profile height | 5.0" | 4.2" | -0.7" | -15.08% |
| Turnover per mile | 807 | 793 | 14 | -1.73% |
| Clearance | - | - | +0.2" | - |






Speedometer Error
(First wheel OEM size)
| Reading | 20 mph | 30 mph | 40 mph | 50 mph | 60 mph | 70 mph | 80 mph | 90 mph |
|---|---|---|---|---|---|---|---|---|
| Actual | 20.4 | 30.5 | 40.7 | 50.9 | 61.1 | 71.2 | 81.4 | 91.6 |
