First, Add Your Vehicle

Get an exact fit for your vehicle.
Tap image to zoom

Motorcraft Platinum Spark Plug SP-550-X

Shop All Motorcraft
Motorcraft914729
Part # SP-550-X
SKU # 914729
Price Not Available
In stock|
Estimated delivery Mar. 7-8
Part #SP-550-X
SKU #914729
Weight0.1lbs
Center Electrode Tip MaterialIridium
Thread Diameter14mm
Center Electrode Core MaterialCopper
Seat TypeTapered
Reach0.98425in
Metal TypePlatinum
Tested to Ford specifications for performance and emission standards.
  • checkmark
    Nickel plated shell for corrosion resistance and improved appearance.
  • checkmark
    Same part that was installed when the vehicle rolled-off the assembly line
  • checkmark
    Designed to deliver quick starts, enhanced fuel economy and smooth acceleration with 100,000 mile service interval
  • checkmark
    Proprietary platinum pad on the side wire electrode with iridium enhanced center electrode.