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1982-1995 Mustang 5.0 Motorcraft Factory Replacement Spark Plug Kit - Copper | ASF42C by Motorcraft

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Details   |   Reviews
1982-1995 Mustang 5.0 Motorcraft Factory Replacement Spark Plug Kit - Copper | ASF42C

Have some fouled-out spark plugs in your 1982-1995 Ford Mustang 5.0L? We have you covered with these direct Motorcraft replacements!

Item #ASF42CK

Everyday Low Price: $29.99

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 This item is returnable. Details

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  • Replaces Fouled Or Damaged Stock Spark Plugs
  • Fits Factory Cylinder Heads


  • Copper Replacement Plug
  • 14mm Thread Size
  • Motorcraft Quality

 What's in the Box

  • (8) ASF42C Spark Plugs

Motorcraft Spark Plug Kit - Copper

Restore the performance of your 5.0 engine with this Motorcraft spark plug kit! This kit includes eight new Motorcraft ASF42C spark plugs to ensure your ignition is firing properly. Over time your factory spark plugs will corrode, causing misfires. These plugs feature a copper core material with a nickel alloy tip. The 14mm thread size is a direct fit into factory cylinder heads.


  • Fits 1982-1985 Mustang 5.0 w/ Carburetor
  • Fits 1987-1995 Mustang 5.0 w/ EFI (see Fitment Note Tab)

FAQ (Frequently Asked Questions)

  • What size socket do I need to change this plug and do you have this tool here?  - This Spark Plug will take a standard 5/8" plug socket. We do not sell this socket here at LMR, but you will be able to get one at any local tool store in your area. 

Ford Motorcraft Warranty - Click Here

  • Will not fit 1986 Mustang 5.0 or 1993-1995 Mustang Cobra
  • How To Change Mustang Spark Plugs

    Changing Mustang spark plugs is an easy task that can be done in less than an hour! Follow along as LMR walks you through step by step! more

    Read more: 79 93 mustang , 94 04 mustang , 05 09 mustang , 10 14 mustang , 2015 mustang , mustang , spark plugs

    Posted on 1/4/2017

  • What Spark Plug Do I Need For My Mustang?

    Choosing a set of spark plugs for your Mustang can be a challenging task. We will walk you through all of the different areas of your spark plug and how to choose the best option for your Mustang. more

    Read more: mustang , spark plug , ignition , 79 93 mustang , 94 04 mustang , 05 09 mustang , 10 14 mustang , 2015 mustang

    Posted on 2/24/2022

    • Ford Mustang - 1982, 1983, 1984, 1985, 1986, 1987, 1988, 1989, 1990, 1991, 1992, 1993, 1994, 1995
    • Engines: 5.0

    California Residents:
    Prop 65 Warning SignWARNING: Cancer and Reproductive Harm- www.P65Warnings.ca.gov

    About This Brand

    Ford Motor Company Genuine Parts, Motorcraft® Parts and Ford and Motorcraft Remanufactured Parts are all excellent choices when it comes to performance, longevity and value for your Mustang or SVT Lightning. And they’re all backed by a Ford Motor Company limited parts warranty*, so you know their parts you use are going to perform like they should. Put the same parts on your Lighting & Mustang that came from the factory! Shop LatemodelRestoration.com for Motorcraft oil, oil filters, friction modifier, spark plugs, and many other replacement maintenance items!

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