Replacement Parts

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Tell Us More About Your Audi A4. View all models

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Your Audi A4 luxury sedan successfully combines comfort with performance. If you notice your engine misfiring, something may be wrong with one or more of the cylinders. Swap out your Audi A4 spark plug to avoid increased emissions and to get your car back to running smoothly and upgrade with AutoZone today.

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  • Part Number: XP3923
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  • Part Number: XP3923
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  • Part Number: XP3923
  • Notes:
  • Part Number: XP3923
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  • Part Number: XP3923
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  • Part Number: XP3923
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  • Part Number: XP3923
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Overheated spark plugs for Audi A4 ignite the fuel before the spark fires. It's essential to use properly functioning spark plugs, which use a ceramic insert to isolate high voltage at the electrode to that the spark happens only at the tip. Borrow any specialty tools you'll need from our Loan-a-Tool program if you plan to handle your own parts replacement. When you order from AutoZone online, you can also take advantage of our Free Shipping and 1-Year, Lower Price Guarantee with each purchase.

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