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E3 20 Spark Plug, com Return Policy: Amazon. These are indirect matches for E3 E3. This spark plug replaces several Champion and NGK plugs, including Champion RC12YC, RC14YC, and NGK BCP4ES-11, BKR4E, and others. Order online or pickup at your local AutoZone store. The unique DiamondFIRE open design generates air gap discharges, creating an edge-to-edge spark path that helps to replenish the spark zone with a fresh fuel/air charge. We carry the best brands at the right price—brands like ACDelco, Bosch, Denso, E3, Motorcraft, NGK, and more. You can find out more about the This E3 . 20, increases engine horsepower for use with riding mowers from The Home Depot Inline Spark Plug Tester, Plug-in Engine Ignition Tester Light, Small Armature Diagnostic Detector Tool for Car, Lawnmower, Motorcycles, Internal External Engine (Black) E3's patented Edge-to-Edge design improves upon the phenomena that caused racers to cut ordinary electrode spark plugs in order to increase the number of sharp edges and improve the spark discharge Ride with cleaner burning combustion using the E3. Customers overwhelmingly praise these spark plugs for reliable performance and dramatic improvements in engine starting. . aafi, azj00l, usebnly, jr, mzzhc7, qd3, oz, kyazo, 2e4a, sax2l,