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Amazon.com: Box of 4 (Four) Champion CJ8, 843 Spark Plug Replaces NGK BM6A, 5921; Bosch WS8E 7543 : Patio, Lawn & Garden
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Champion Spark Plug CJ8 Popular Size for Lawn Mower & Whipper Snipper 843 4 Pack 9300827074323 | eBay
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Champion CJ8 Spark Plug, 0.027 to 0.033 in Fill Gap, 0.551 in Thread, 0.748 in Hex, Copper 24 Pack #VORG8452153, CJ8
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