2008 Mercury Mariner — Premier
The 2008 Mercury Mariner Premier shipped with 2 different factory tire sizes, depending on the wheel package it left the factory with (this can also reflect a staggered front/rear setup). Check your tire sidewall or door placard to confirm which one applies to your vehicle.
This trim shipped with more than one tire size (staggered fitment, front/rear, or optional wheel package). Confirm which one matches your vehicle by checking your tire sidewall or door placard.
235/70R16
| Section width | 235 mm |
|---|---|
| Aspect ratio (sidewall height) | 70% (164.5 mm) |
| Rim diameter | 16" |
| Overall tire diameter | ~29" |
| Revolutions per mile | ~697 |
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225/65R17
| Section width | 225 mm |
|---|---|
| Aspect ratio (sidewall height) | 65% (146.3 mm) |
| Rim diameter | 17" |
| Overall tire diameter | ~28.5" |
| Revolutions per mile | ~707 |
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What this size means for your Mercury Mariner
On the 2008 Mercury Mariner Premier, the factory 235/70R16 measures about 29″ in overall diameter with a 164.5 mm (6.5″) sidewall, and completes roughly 697 revolutions per mile. Its 70-series aspect ratio gives a tall sidewall of the kind used on trucks, SUVs, and older passenger cars, built for cushioning and load. In tire terms it is a passenger (P-metric / Euro-metric) size.
The 235/70R16 and 225/65R17 differ in both width and overall diameter (0.5″, 1.8%), which usually means a staggered front/rear setup — the two sizes are not interchangeable side to side, so match each to its correct axle.
On a vehicle of this age, the Mercury Mariner may have been refitted with a slightly different replacement size somewhere in its life, so check the current sidewall — not just the factory spec — before buying.
Other 2008 Mercury Mariner trims
Mercury Mariner tire sizes by year
- 2011 Mercury Mariner 235/70R16
- 2010 Mercury Mariner 235/70R16
- 2009 Mercury Mariner 235/70R16
- 2007 Mercury Mariner 235/70R16
- 2006 Mercury Mariner 235/70R16
- 2005 Mercury Mariner 235/70R16
How to read a tire size
A tire size like 225/45R17 breaks down into three parts:
the first number is the section width in millimeters
(the tire's width from sidewall to sidewall), the second is the
aspect ratio — the sidewall's height as a percentage of
that width — and the number after the "R" is the rim
diameter in inches. A letter prefix (P or LT) indicates
Passenger or Light Truck construction; its absence usually means
Euro-metric sizing.
Some trucks and off-road tires instead use "flotation" sizing, like
37X12.50R17 — here the numbers are the tire's overall
diameter and width in inches directly, with the rim diameter last.
Always verify against the tire information placard on your driver's-side door jamb or your owner's manual before purchasing — tire size can vary by factory option package even within the same trim.