Mustang Ford Racing Cold Spark Plug Set 12mm Thread 3V 2008-2010

Ford Racing Part Number: M-12405-3V12MM

Set of Eight Ford Racing 12mm Thread Cold Spark Plugs for 2008-2010 3V Mustangs.

For use in engines with higher than stock cylinder combustion pressures or sustained high rpm. One heat range colder than the stock Mustang GT spark plugs. Fits 2008-2010 3V heads requiring the 12mm thread. All 2009 engines use 12mm spark plugs.

*If you have a 2008 Mustang, you need to determine if you have 2005-2008 "high thread" 16mm spark plugs or 2008-2010 12mm spark plugs. This can be determined by looking at the coil engineering number. If you have a 3L3E number, you have 16mm spark plugs (M124053V0), if you have an 8L3E coil engineering number then use the 12mm this version.

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