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Amazon.com: NGK V-Power Spark Plug ZFR5N (6 Pack) Compatible With JEEP GRAND CHEROKEE LIMITED 1999-2004 4.0L/242 : Automotive
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Amazon.com: 8 pc Champion Copper Plus Spark Plugs compatible with Jeep Grand Cherokee 4.7L V8 1999-2007 Ignition Wire Secondary : Automotive
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99 - 04 V8 Jeep Grand Cherokee: How to Replace Spark plugs, Ignition coils and TPS [rough idle] - YouTube
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