This Champion spark plug is specifically designed for marine engines, ensuring reliable ignition and performance on the water. With a ground electrode quantity of 1 and a center electrode tip material of nickel, this spark plug is classified as a Champion Copper Plus Small Engine plug. The plug type is QL77JC4 and the manufacturer part number is 828-1.
It has a reach of 0.5 inches and a thread diameter of 0.551 inches with a hex size of 0.813 inches. This spark plug also has a cut back ground electrode tip design and a non-removable nut electrical terminal type. It comes with a manufacturer heat range of 77 and a resistor type of yes. This performance/custom fitment type spark plug is made by Federal-Mogul Motorparts under the MFG brand name of Champion Spark Plugs.
Plug TypeQL77JC4Center Electrode Tip MaterialNickelGround Electrode Quantity1Hex Size(IN)0.813Hex Size(MM)20.650Manufacturer Heat Range77Seat TypeFlatReach(IN)0.5Thread Diameter(IN)0.551Thread Diameter(MM)14.000Resistor TypeYesGround Electrode Tip DesignCut BackGround Electrode Core MaterialNickelWasher IncludedYesClassificationChampion Copper Plus Small EngineElectrical Terminal TypeNon-Removable NutHex TypeHexWasher TypeCrushIndexedNoPart DescriptionSpark Plug
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