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3V COLD SPARK PLUG SET (12 MM THREAD)

  • Fits 2008 and newer 3V heads requiring the 12 mm thread
  • For use in engines with higher than stock cylinder combustion pressures or sustained high rpm
  • One heat range colder than the stock Mustang GT and 5.4L-3V truck engine spark plugs
  • Sold in engine sets of 8
  • Use M-12405-3V0 spark plugs for early style 2005-2008 3V heads
  • NOTES:
    • 2008 engines with late style 12 mm spark plugs can be identified by coil engineering number 8L3E
    • 2005-2008 engines with early style 16 mm "High Thread" design spark plugs can be identified by coil engineering number 3L3E part number
    • All 2009-2010 engines use 12 mm spark plugs
Part Type
Electrical: Ignition Related
Warranty Availability
Not Available
Packaged Dimensions
6" x 3.75" x 4
Packaged Weight
1 lb(s)
UPC Code
756122105764
Catalog Page Number
153
Country of Origin
Japan