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Accel Spark Plugs 578C1-6

Copper Core Spark Plugs

Accel Spark Plugs 578C1-6

111-578C1-6

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Estimated to ship directly from the manufacturer on 05/01/18
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Accel Spark Plugs 578C1-6 Copper Core Spark Plugs $25.41
Copper Core Spark Plugs
  • Ford EcoBoost 3.5L
  • 14mm Thread
  • 1.00" Reach
  • Tapered Seat
  • Projected Tip
  • 5/8" Hex
  • .028" Gap
  • Heat Range: 1 Step Colder Than Stock
  • 6/Pkg.

  • Specifications:

    Manufacturer's Part Number:
    578C1-6

    Since the mid 1980's, Accel's U-Groove spark plugs have set the standard for high performance spark plugs. Accel engineers developed and patented the U-Groove technology which permitted the spark to develop a much larger, hotter and fuller flash front. That effectively gave a more complete burn of the air/fuel mixture in the combustion chamber. Over the past 25 years engine head design and fuel management technology has changed. As a result, Accel is moving away from the U-Groove construction to the familiar "conventional" style ground electrode. In addition, the upper insulator will now be white instead of yellow, and available in convenient 4-packs.

    Bottom line...This one-piece construction spark plug with conventional ground electrode provides exceptional performance and value by producing:

    • Hotter Spark/Faster Burn Rate for more power at high rpms
    • Improved Throttle Response, Fuel Economy, and Reduced Fouling
    • Reduced Mis-fires
    • Purified Alumina Insulator to prevent arcing
    • Machine-rolled threads to protect heads



    Note: The last digit in the part number of the spark plug represents the spark plug heat range. 1 is the coldest. 7 is the hottest.
    Example: 111-0111-4 is the coolest plug and 111-0116-4 is the hottest in that specific style spark plug.





    Click Here for Accel Spark Plug Cross Reference

    Spark Plug Heat Range Explanation, Click Here

    Does Accel Spark Plugs 578C1-6 fit your vehicle?

    Narrow Results

    2015-2017 FORD TRANSIT-350

    • CC: 3496
    • Fitment_Note: 7.2-14.5 lb. ft Torque Specification
    • Liter: 3.5
    • SubModel: BASE
    • CUI: 213
    • EngineType: V6 ( 3.5 L / 213 )

    2017 FORD EXPEDITION

    • Fitment_Note: 7.2-14.5 lb. ft Torque Specification
    • EngineType: ALL
    • SubModel: XL

    2016-2017 FORD EXPLORER

    • Fitment_Note: 7.2-14.5 lb. ft Torque Specification
    • EngineType: ALL
    • SubModel: PLATINUM

    2014-2016 LINCOLN MKT

    • Fitment_Note: 7.2-14.5 lb. ft Torque Specification
    • EngineType: ALL
    • SubModel: ECOBOOST

    2017 FORD EXPEDITION

    • CC: 3496
    • Fitment_Note: 7.2-14.5 lb. ft Torque Specification
    • Liter: 3.5
    • Aspiration: T
    • SubModel: LIMITED
    • Engine Vin: T
    • CUI: 213
    • EngineType: V6 ( 3.5 L / 213 )

    2015-2017 FORD TRANSIT-250

    • CC: 3496
    • Fitment_Note: 7.2-14.5 lb. ft Torque Specification
    • Liter: 3.5
    • SubModel: BASE
    • CUI: 213
    • EngineType: V6 ( 3.5 L / 213 )

    2010-2012 LINCOLN MKT

    • Fitment_Note: 7.2-14.5 lb. ft Torque Specification
    • EngineType: ALL
    • SubModel: ECOBOOST

    2015-2017 FORD TRANSIT-350 HD

    • CC: 3496
    • Fitment_Note: 7.2-14.5 lb. ft Torque Specification
    • Liter: 3.5
    • SubModel: XLT
    • CUI: 213
    • EngineType: V6 ( 3.5 L / 213 )

    2016 FORD EXPLORER

    • Fitment_Note: 7.2-14.5 lb. ft Torque Specification
    • EngineType: ALL
    • SubModel: SPORT

    2011-2017 FORD F-150

    • CC: 3496
    • Fitment_Note: 7.2-14.5 lb. ft Torque Specification
    • Liter: 3.5
    • SubModel: LARIAT
    • CUI: 213
    • EngineType: V6 ( 3.5 L / 213 )

    2015-2017 FORD EXPEDITION

    • Fitment_Note: 7.2-14.5 lb. ft Torque Specification
    • EngineType: ALL
    • SubModel: EL XL

    2017 FORD F-150

    • CC: 3496
    • Fitment_Note: 7.2-14.5 lb. ft Torque Specification
    • Liter: 3.5
    • Aspiration: T
    • SubModel: RAPTOR
    • Engine Vin: G
    • CUI: 213
    • EngineType: V6 ( 3.5 L / 213 )

    2017 FORD POLICE INTERCEPTOR SEDAN

    • CC: 3496
    • Fitment_Note: 7.2-14.5 lb. ft Torque Specification
    • Liter: 3.5
    • SubModel: BASE
    • CUI: 213
    • EngineType: V6 ( 3.5 L / 213 )

    2016 FORD F-150

    • Fitment_Note: 7.2-14.5 lb. ft Torque Specification
    • Liter: 2.7
    • SubModel: XL
    • CUI: 164
    • EngineType: V6 ( 2.7 L / 164 )

    2016 FORD F-150

    • CC: 4952
    • Fitment_Note: 7.2-14.5 lb. ft Torque Specification
    • Liter: 5.0
    • SubModel: XL
    • CUI: 302
    • EngineType: V8 ( 5.0 L / 302 )

    2014-2017 FORD POLICE INTERCEPTOR UTILITY

    • CC: 3496
    • Fitment_Note: 7.2-14.5 lb. ft Torque Specification
    • Liter: 3.5
    • SubModel: BASE
    • CUI: 213
    • EngineType: V6 ( 3.5 L / 213 )

    2017 LINCOLN MKT

    • CC: 3496
    • Fitment_Note: 7.2-14.5 lb. ft Torque Specification
    • Liter: 3.5
    • SubModel: BASE
    • CUI: 213
    • EngineType: V6 ( 3.5 L / 213 )

    2016-2017 FORD F-150

    • Fitment_Note: 7.2-14.5 lb. ft Torque Specification
    • EngineType: ALL
    • SubModel: LIMITED

    2011-2017 FORD F-150

    • CC: 3496
    • Fitment_Note: 7.2-14.5 lb. ft Torque Specification
    • Liter: 3.5
    • SubModel: KING RANCH
    • CUI: 213
    • EngineType: V6 ( 3.5 L / 213 )

    2017 LINCOLN NAVIGATOR

    • CC: 3496
    • Fitment_Note: 7.2-14.5 lb. ft Torque Specification
    • Liter: 3.5
    • SubModel: L RESERVE
    • CUI: 213
    • EngineType: V6 ( 3.5 L / 213 )

    2015-2017 FORD TRANSIT-150

    • CC: 3496
    • Fitment_Note: 7.2-14.5 lb. ft Torque Specification
    • Liter: 3.5
    • SubModel: BASE
    • CUI: 213
    • EngineType: V6 ( 3.5 L / 213 )

    2015-2017 FORD EXPEDITION

    • Fitment_Note: 7.2-14.5 lb. ft Torque Specification
    • EngineType: ALL
    • SubModel: EL PLATINUM

    2015-2017 FORD F-150

    • CC: 3496
    • Fitment_Note: 7.2-14.5 lb. ft Torque Specification
    • Liter: 3.5
    • SubModel: XL
    • CUI: 213
    • EngineType: V6 ( 3.5 L / 213 )

    2016-2017 FORD FLEX

    • Fitment_Note: 7.2-14.5 lb. ft Torque Specification
    • EngineType: ALL
    • SubModel: LIMITED

    2015-2017 FORD EXPEDITION

    • Fitment_Note: 7.2-14.5 lb. ft Torque Specification
    • EngineType: ALL
    • SubModel: XLT

    2015 FORD EXPLORER

    • CC: 3497
    • Fitment_Note: 7.2-14.5 lb. ft Torque Specification
    • Liter: 3.5
    • Aspiration: T
    • SubModel: SPORT
    • Engine Vin: T
    • CUI: 213
    • EngineType: V6 ( 3.5 L / 213 )

    2016 FORD F-150

    • Fitment_Note: 7.2-14.5 lb. ft Torque Specification
    • EngineType: ALL
    • SubModel: XLT

    2010-2017 FORD FLEX

    • CC: 3496
    • Fitment_Note: 7.2-14.5 lb. ft Torque Specification
    • Liter: 3.5
    • Aspiration: T
    • SubModel: SEL
    • CUI: 213
    • EngineType: V6 ( 3.5 L / 213 )

    2010-2013 LINCOLN MKS

    • Fitment_Note: 7.2-14.5 lb. ft Torque Specification
    • EngineType: ALL
    • SubModel: ECOBOOST

    2016-2017 LINCOLN NAVIGATOR

    • Fitment_Note: 7.2-14.5 lb. ft Torque Specification
    • EngineType: ALL
    • SubModel: L SELECT

    2017 FORD EXPEDITION

    • CC: 3496
    • Fitment_Note: 7.2-14.5 lb. ft Torque Specification
    • Liter: 3.5
    • Aspiration: T
    • SubModel: MAX LIMITED
    • Engine Vin: T
    • CUI: 213
    • EngineType: V6 ( 3.5 L / 213 )

    2017 FORD EXPEDITION

    • CC: 3496
    • Fitment_Note: 7.2-14.5 lb. ft Torque Specification
    • Liter: 3.5
    • Aspiration: T
    • SubModel: PLATINUM
    • Engine Vin: T
    • CUI: 213
    • EngineType: V6 ( 3.5 L / 213 )

    2017 FORD EXPEDITION

    • Fitment_Note: 7.2-14.5 lb. ft Torque Specification
    • EngineType: ALL
    • SubModel: KING RANCH

    2011-2014 FORD F-150

    • CC: 3496
    • Fitment_Note: 7.2-14.5 lb. ft Torque Specification
    • Liter: 3.5
    • SubModel: XLT
    • CUI: 213
    • EngineType: V6 ( 3.5 L / 213 )

    2015-2017 FORD TRANSIT-350 HD

    • CC: 3496
    • Fitment_Note: 7.2-14.5 lb. ft Torque Specification
    • Liter: 3.5
    • SubModel: BASE
    • CUI: 213
    • EngineType: V6 ( 3.5 L / 213 )

    2013 LINCOLN MKT

    • CC: 3496
    • Fitment_Note: 7.2-14.5 lb. ft Torque Specification
    • Liter: 3.5
    • SubModel: ECOBOOST
    • CUI: 213
    • EngineType: V6 ( 3.5 L / 213 )

    2010-2015 FORD FLEX

    • CC: 3496
    • Fitment_Note: 7.2-14.5 lb. ft Torque Specification
    • Liter: 3.5
    • Aspiration: T
    • SubModel: LIMITED
    • CUI: 213
    • EngineType: V6 ( 3.5 L / 213 )

    2015-2017 FORD TRANSIT-350

    • CC: 3496
    • Fitment_Note: 7.2-14.5 lb. ft Torque Specification
    • Liter: 3.5
    • SubModel: XL
    • CUI: 213
    • EngineType: V6 ( 3.5 L / 213 )

    2015 LINCOLN NAVIGATOR

    • CC: 3496
    • Fitment_Note: 7.2-14.5 lb. ft Torque Specification
    • Liter: 3.5
    • SubModel: L
    • CUI: 213
    • EngineType: V6 ( 3.5 L / 213 )

    2011-2014 FORD F-150

    • CC: 3496
    • Fitment_Note: 7.2-14.5 lb. ft Torque Specification
    • Liter: 3.5
    • SubModel: FX4
    • CUI: 213
    • EngineType: V6 ( 3.5 L / 213 )

    2016 FORD EXPEDITION

    • CC: 3496
    • Fitment_Note: 7.2-14.5 lb. ft Torque Specification
    • Liter: 3.5
    • SubModel: XL
    • CUI: 213
    • EngineType: V6 ( 3.5 L / 213 )

    2011-2014 FORD F-150

    • CC: 3496
    • Fitment_Note: 7.2-14.5 lb. ft Torque Specification
    • Liter: 3.5
    • SubModel: FX2
    • CUI: 213
    • EngineType: V6 ( 3.5 L / 213 )

    2016 FORD F-150

    • CC: 3496
    • Fitment_Note: 7.2-14.5 lb. ft Torque Specification
    • Liter: 3.5
    • SubModel: XL
    • CUI: 213
    • EngineType: V6 ( 3.5 L / 213 )

    2015-2017 FORD TRANSIT-150

    • CC: 3496
    • Fitment_Note: 7.2-14.5 lb. ft Torque Specification
    • Liter: 3.5
    • SubModel: XLT
    • CUI: 213
    • EngineType: V6 ( 3.5 L / 213 )

    2015 LINCOLN NAVIGATOR

    • CC: 3496
    • Fitment_Note: 7.2-14.5 lb. ft Torque Specification
    • Liter: 3.5
    • SubModel: BASE
    • CUI: 213
    • EngineType: V6 ( 3.5 L / 213 )

    2016-2017 FORD F-150

    • CC: 3496
    • Fitment_Note: 7.2-14.5 lb. ft Torque Specification
    • Liter: 3.5
    • SubModel: SSV
    • CUI: 213
    • EngineType: V6 ( 3.5 L / 213 )

    2017 FORD GT

    • CC: 3496
    • Fitment_Note: 7.2-14.5 lb. ft Torque Specification
    • Liter: 3.5
    • SubModel: BASE
    • CUI: 213
    • EngineType: V6 ( 3.5 L / 213 )

    2015-2017 FORD EXPEDITION

    • Fitment_Note: 7.2-14.5 lb. ft Torque Specification
    • EngineType: ALL
    • SubModel: EL KING RANCH

    2015-2016 FORD EXPEDITION

    • CC: 3496
    • Fitment_Note: 7.2-14.5 lb. ft Torque Specification
    • Liter: 3.5
    • SubModel: LIMITED
    • CUI: 213
    • EngineType: V6 ( 3.5 L / 213 )

    2016 LINCOLN NAVIGATOR

    • Fitment_Note: 7.2-14.5 lb. ft Torque Specification
    • EngineType: ALL
    • SubModel: L RESERVE

    2016-2017 FORD EXPEDITION

    • Fitment_Note: 7.2-14.5 lb. ft Torque Specification
    • EngineType: ALL
    • SubModel: EL SSV

    2016-2017 LINCOLN NAVIGATOR

    • Fitment_Note: 7.2-14.5 lb. ft Torque Specification
    • EngineType: ALL
    • SubModel: SELECT

    2017 LINCOLN NAVIGATOR

    • CC: 3496
    • Fitment_Note: 7.2-14.5 lb. ft Torque Specification
    • Liter: 3.5
    • SubModel: RESERVE
    • CUI: 213
    • EngineType: V6 ( 3.5 L / 213 )

    2014 LINCOLN MKS

    • CC: 3496
    • Fitment_Note: 7.2-14.5 lb. ft Torque Specification
    • Liter: 3.5
    • SubModel: ECOBOOST
    • CUI: 213
    • EngineType: V6 ( 3.5 L / 213 )

    2013-2016 FORD POLICE INTERCEPTOR SEDAN

    • CC: 3496
    • Fitment_Note: 7.2-14.5 lb. ft Torque Specification
    • Liter: 3.5
    • Aspiration: T
    • SubModel: BASE
    • CUI: 213
    • EngineType: V6 ( 3.5 L / 213 )

    2017 FORD EXPLORER

    • CC: 3496
    • Fitment_Note: 7.2-14.5 lb. ft Torque Specification
    • Liter: 3.5
    • SubModel: SPORT
    • CUI: 213
    • EngineType: V6 ( 3.5 L / 213 )

    2011-2012 FORD FLEX

    • CC: 3496
    • Fitment_Note: 7.2-14.5 lb. ft Torque Specification
    • Liter: 3.5
    • Aspiration: T
    • SubModel: TITANIUM
    • CUI: 213
    • EngineType: V6 ( 3.5 L / 213 )

    2011-2014 FORD F-150

    • CC: 3496
    • Fitment_Note: 7.2-14.5 lb. ft Torque Specification
    • Liter: 3.5
    • SubModel: XL
    • CUI: 213
    • EngineType: V6 ( 3.5 L / 213 )

    2015-2017 FORD EXPEDITION

    • Fitment_Note: 7.2-14.5 lb. ft Torque Specification
    • EngineType: ALL
    • SubModel: EL XLT

    2015-2017 FORD TRANSIT-350 HD

    • CC: 3496
    • Fitment_Note: 7.2-14.5 lb. ft Torque Specification
    • Liter: 3.5
    • SubModel: XL
    • CUI: 213
    • EngineType: V6 ( 3.5 L / 213 )

    2015 FORD F-150

    • CC: 3496
    • Fitment_Note: 7.2-14.5 lb. ft Torque Specification
    • Liter: 3.5
    • SubModel: XLT
    • CUI: 213
    • EngineType: V6 ( 3.5 L / 213 )

    2015-2016 FORD EXPEDITION

    • CC: 3496
    • Fitment_Note: 7.2-14.5 lb. ft Torque Specification
    • Liter: 3.5
    • SubModel: MAX LIMITED
    • CUI: 213
    • EngineType: V6 ( 3.5 L / 213 )

    2016 LINCOLN NAVIGATOR

    • Fitment_Note: 7.2-14.5 lb. ft Torque Specification
    • EngineType: ALL
    • SubModel: RESERVE

    2015-2016 FORD EXPEDITION

    • Fitment_Note: 7.2-14.5 lb. ft Torque Specification
    • EngineType: ALL
    • SubModel: PLATINUM

    2013-2014 FORD F-150

    • Fitment_Note: 7.2-14.5 lb. ft Torque Specification
    • EngineType: ALL
    • SubModel: LIMITED

    2015-2016 FORD EXPEDITION

    • CC: 3496
    • Fitment_Note: 7.2-14.5 lb. ft Torque Specification
    • Liter: 3.5
    • SubModel: KING RANCH
    • CUI: 213
    • EngineType: V6 ( 3.5 L / 213 )

    2015-2017 FORD TRANSIT-350

    • CC: 3496
    • Fitment_Note: 7.2-14.5 lb. ft Torque Specification
    • Liter: 3.5
    • SubModel: XLT
    • CUI: 213
    • EngineType: V6 ( 3.5 L / 213 )

    2016-2017 FORD TRANSIT-250

    • CC: 3496
    • Fitment_Note: 7.2-14.5 lb. ft Torque Specification
    • Liter: 3.5
    • SubModel: PTV
    • CUI: 213
    • EngineType: V6 ( 3.5 L / 213 )

    2015-2017 FORD TRANSIT-150

    • CC: 3496
    • Fitment_Note: 7.2-14.5 lb. ft Torque Specification
    • Liter: 3.5
    • SubModel: XL
    • CUI: 213
    • EngineType: V6 ( 3.5 L / 213 )

    2015-2017 FORD EXPEDITION

    • Fitment_Note: 7.2-14.5 lb. ft Torque Specification
    • EngineType: ALL
    • SubModel: EL LIMITED

    2017 FORD F-150

    • CC: 3496
    • Fitment_Note: 7.2-14.5 lb. ft Torque Specification
    • Liter: 3.5
    • SubModel: XLT
    • CUI: 213
    • EngineType: V6 ( 3.5 L / 213 )

    2015-2016 LINCOLN MKS

    • Fitment_Note: 7.2-14.5 lb. ft Torque Specification
    • EngineType: ALL
    • SubModel: ECOBOOST

    2010-2017 FORD TAURUS

    • Fitment_Note: 7.2-14.5 lb. ft Torque Specification
    • EngineType: ALL
    • SubModel: SHO

    2015 FORD EXPEDITION

    • Fitment_Note: 7.2-14.5 lb. ft Torque Specification
    • EngineType: ALL
    • SubModel: XL

    2013-2014 FORD EXPLORER

    • Fitment_Note: 7.2-14.5 lb. ft Torque Specification
    • EngineType: ALL
    • SubModel: SPORT

    2011-2017 FORD F-150

    • CC: 3496
    • Fitment_Note: 7.2-14.5 lb. ft Torque Specification
    • Liter: 3.5
    • SubModel: PLATINUM
    • CUI: 213
    • EngineType: V6 ( 3.5 L / 213 )

    2016-2017 FORD EXPEDITION

    • Fitment_Note: 7.2-14.5 lb. ft Torque Specification
    • EngineType: ALL
    • SubModel: SSV
    Some parts are not legal for use in California or other states with similar laws / regulations