Last Update: Apr. 28, 2017, 5:51 a.m.
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Sizes of Tires and Rims for Mercury Grand Marquis

2005 year

Modification Tire size Rim width Rim diameter Offset Size of lug nuts Number of nuts (PCD) Diameter (PCD) Centre bore diameter (DIA)
4.6L V8

235/50 R18

7" 16" 54mm 12mm*1.5" 5 114.3mm 70.5mm

2004 year

Modification Tire size Rim width Rim diameter Offset Size of lug nuts Number of nuts (PCD) Diameter (PCD) Centre bore diameter (DIA)
4.6L V8

235/50 R18

7" 16" 54mm 12mm*1.5" 5 114.3mm 70.5mm

2003 year

Modification Tire size Rim width Rim diameter Offset Size of lug nuts Number of nuts (PCD) Diameter (PCD) Centre bore diameter (DIA)
4.6L V8

235/50 R18

7" 16" 54mm 12mm*1.5" 5 114.3mm 70.5mm

One more important characteristics of Grand Marquis rims is size of nuts 12mm*1.5" and overall amount of 5 nuts per one wheel. The original wheel has 7" of width and is 16" in diameter. If you buy not an original rim, choose 70.5mm of central bore and 114.3mm diameter of placing nuts. When buying tires for your Mercury Grand Marquis don’t forget that your vehicle has 235/50 R18 tire size. Buying new rims don’t forget the 54mm offset of 4.6L V8 wheels. Choose new tires and rims for Mercury Grand Marquis to suit original characteristics.

  • 16" wheels help Mercury Grand Marquis feel safe and stable on highway.

  • And still 16" rims are not huge, so Mercury Grand Marquis doesn’t need lots of power to push.

  • Good width of 7" and clever 54mm offset add a lot to 4.6L V8 stability.

Change rims to over 16" may add fuel use of 4.6L V8. By changing pay attention to 5 number of nuts and 70.5mm bore diameter for Grand Marquis wheels. You still need to be careful on Mercury 4.6L V8 with changed characteristics, so use 16" diameter wheels if you want safety. Visit the service station to plan different from 12mm*1.5" nuts installation or using rims with other than 54mm offset.

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