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Amazon.com: Champion Copper Plus Small Engine Spark Plug, Stk No. 946, Plug Type No. QC12YC1 Box of 4 Plugs : Automotive
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Johnson 0384771 - SPARK PLUG, Ch ul-77v, 140 HP. Alternate plugs for susstained slow operation:Champion L77J4 Part number 386941or AC M40FFX ,Part number 38639. | Boats.net
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