Original Equipment Finewire Single Platinum Spark Plug
Hover over the image to zoom in
Share this:
This product is on sale and is not eligible for any further promotional discounts, coupons or special offers.

Motorcraft Original Equipment Finewire Single Platinum Spark Plug

Part No. SP-459 Warranty Details  
was $5.19
you save $1.00
Quantity  Add to Cart

See if this part fits a specific vehicle.

Check Vehicle Fit

Motorcraft Original Equipment spark plugs are designed, engineered and recommended by Ford Motor Company.

Product Features:
  • Same part installed when the engine rolled off the assembly line
  • 100,000-mile service interval
  • Iridium-enhanced center electrode for improved durability and wear resistance
  • .6 mm finewire design improves ignitability
Back To Top
Electrode Core Material:Copper Core
Electrode Tip Material:Iridium Alloy
Ground Strap Quantity:1
Insulator Type:Standard
Manufacturer Heat Range:3
Reach:0.679 in
Seat Type:Tapered
Thread Diameter:14 mm
Tip Configuration:Ir Finewire Double Platinum
Type:Finewire Double Platinum Spark Plug
Wrench Diameter:5/8 in

Do you have questions about this product?


Ask a question, get answers from real customers and in-house experts. For further assistance, please review your support options on our Contact Us page.

2 Questions | 2 Answers
Displaying questions 1-2
  • Q:

    are gaps preset or can you set them
    Asked on 3/24/2012 by Anonymous

    1 answer



      This part Motorcraft Original Equipment Finewire Single Platinum Spark Plug, Part No. SP459 manufactured by Motorcraft comes preser to a gap of 0.05 in. gap size. But, A spark plug part number might fit hundreds of different engines from many different manufacturers. Although the spark plug from the factory will come with a gap to a pre-selected setting, this may not be the right gap for your particular engine. The incorrect plug gap for your engine can contribute to a high rate of misfires, loss of power, plug fouling, poor fuel economy, and accelerated plug wear. It is always best to check the gap against the manufacturer's specifications. If adjusting the gap on fine wire or precious metal plugs such as platinum or iridium be very careful not to apply any pressure or prying force to the fine wire center electrode or insulator as they can be damaged. The gap should be adjusted by only moving the ground electrode.
      For compatibility of this part with your vehicle, please provide your vehicle make, model and engine specification.

      Answered on 3/25/2012 by Aaron from AAP
  • Q:

    If these are worn or otherwise bad, would I see reduced gas milage and rough idling/ operation?? Vehicle is a '97 Ford F-150 5.4L V-8 4X4.
    Asked on 1/2/2012 by WJD from Clearville, PA

    1 answer



      If your 1997 Ford F150 spark plugs are bad then your vehicle will rough at idle, misfire and engine will shake. However, I would suggest taking your vehicle to a certified mechanic for a proper diagnosis before buying and having parts installed that may not (solve/be) the problem.

      Answered on 1/4/2012 by Dennis from AAP
Displaying questions 1-2

Do you have a question about this product? 

Check out the specials in our monthly flyer.
Disclaimer We strive to keep all information accurate and up-to-date; however, product availability, pricing, promotions and store hours are subject to change without notice. Please contact Customer Care if you have any questions or corrections.