Replacement Parts

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When you haul and tow loads with your truck, it's important to have the right C1500 performance spark plugs. AutoZone carries a range of plugs that work well for engines that work harder or are modified. All our plugs are designed to hold up under the extreme temperatures of the engine cylinder so you can bank on long-lasting performance.

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  • Part Number: 9659
  • Notes: Gap is pre-set. Do not gap.
  • Part Number: 9601
  • Notes: Gap is pre-set. Do not gap.
  • Part Number: 41-993
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Prevent knocking and deposits by installing new spark plugs for GMC C1500 from AutoZone. They're made with ceramic inserts that isolate the voltage at the electrode. At the gap, the voltage jumps and is directed into the engine block, where it's grounded. Get the GMC C1500 spark plug that your engine requires for maximum efficiency by shopping the extensive selection at AutoZone. Stop by your local store to enjoy our low prices and other benefits, such as free engine diagnostic testing, complimentary battery charging and answers to all your automotive questions.

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