3V Cold Spark Plug (16 MM Thread)

$130.00

SKU: M-12405-3V0A Ford Performance

Verified Fit

Secure Checkout

Product Availability: 10/26/2020
  
This part supersedes Ford Performance M-12405-3V0
 
  • Fits 2005-2008 3V heads requiring the 16 mm thread
  • For use in engines with higher than stock cylinder combustion pressures or sustained high rpm
  • Unique design is proprietary to Ford 3-valve engines
  • One heat range colder than the stock Mustang GT plug
  • Two heat ranges colder than the stock 5.4L-3V truck engine plug
  • Sold in engine sets of 8
  • Use M-12405-3V12MM spark plugs for 2008 and newer 3V heads
  • Note:
    • 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