Motorcraft SP-550 CYFS-12Y-PCT Iridium Spark Plugs 4 Pack - FORD FOCUS ST/RS, Mustang (Replaces SP-537)

Motorcraft SP-550 Iridium Spark Plugs pack of 4

• OE # CYFS-12Y-PCT, CYFS12YPCT, SP550
  
• Hex Size (In): 5/8 Inch
• Spark plug gap 0.027-0.031 in (0.70-0.80 mm)

Replaces/supersedes:
SP-527, SP-537 (CYFS-12Y-2), SP537, CYFS12YPC

Fitment:
Ford Focus RS  2016 2017 2018
Ford Focus ST EcoBoost 2.0L 2013 2014 2015 2016 2017 2018
Ford Mustang EcoBoost 2.3L 2015 2016 2017 2018 2019
Ford Escape EcoBoost 2.0L EcoBoost 2013 2014 2015 2016 2017 2018