{"product_id":"champion-415-rn9yc-copper-plus-marine-spark-plug","title":"Champion Spark Plugs Spark Plug 415","description":"\u003cp\u003eChampion 415 RN9YC Copper Plus Marine Spark Plug\u003c\/p\u003e\u003cp\u003eThe Champion 415 RN9YC Copper Plus Marine Spark Plug is a standard replacement spark plug for compatible marine engine applications requiring an RN9YC plug. Its copper core center electrode provides reliable conductivity and helps maintain accurate heat control for consistent performance and wear.\u003c\/p\u003e\u003cp\u003eThis resistor-type spark plug features a nickel-copper alloy ground electrode and Champion's corrosion-resistant TinTac and ULTRASEAL shell coatings. The flat-seat design uses an included crush washer, while the removable terminal nut accommodates compatible ignition connections.\u003c\/p\u003e\u003cp\u003eProduct Features\u003c\/p\u003e\u003cp\u003eChampion Copper Plus standard replacement spark plug\u003c\/p\u003e\u003cp\u003eCopper core center electrode supports conductivity and heat control\u003c\/p\u003e\u003cp\u003eResistor design helps suppress electromagnetic and radio-frequency interference\u003c\/p\u003e\u003cp\u003eNickel-copper alloy ground electrode with a single-electrode design\u003c\/p\u003e\u003cp\u003eTinTac and ULTRASEAL shell coatings help resist corrosion\u003c\/p\u003e\u003cp\u003eFlat seat with included crush washer\u003c\/p\u003e\u003cp\u003eRemovable terminal nut\u003c\/p\u003e\u003cp\u003eBuilt to applicable ISO and SAE performance standards\u003c\/p\u003e\u003cp\u003eSpark Plug Specifications\u003c\/p\u003e\u003cp\u003eChampion Part Number: 415\u003c\/p\u003e\u003cp\u003ePlug Type: RN9YC\u003c\/p\u003e\u003cp\u003eManufacturer Heat Range: 9\u003c\/p\u003e\u003cp\u003ePre-Gap: 0.032 in. (0.82 mm)\u003c\/p\u003e\u003cp\u003eThread Diameter: 14 mm\u003c\/p\u003e\u003cp\u003eReach: 0.750 in.\u003c\/p\u003e\u003cp\u003eHex Size: 0.813 in. (20.65 mm)\u003c\/p\u003e\u003cp\u003eSeat Type: Flat\u003c\/p\u003e\u003cp\u003eResistor Plug: Yes\u003c\/p\u003e\u003cp\u003eGround Electrode Quantity: 1\u003c\/p\u003e\u003cp\u003eFitment Note: Spark plug requirements and installed gap can vary by engine. Verify RN9YC compatibility and the required spark plug gap using the engine manufacturer's service information before installation.\u003c\/p\u003e\u003cp\u003eFrequently Asked Questions\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eWhat is the Champion 415 RN9YC Copper Plus Marine Spark Plug used for? The Champion 415 RN9YC Copper Plus Marine Spark Plug is a standard replacement spark plug for compatible marine engine applications requiring an RN9YC plug. Its copper core center electrode provides conductivity and heat control, while the resistor design helps suppress electromagnetic and radio-frequency interference.\u003c\/li\u003e\n\u003cli\u003eWhat is the correct gap for the Champion 415 RN9YC Spark Plug? The Champion 415 RN9YC Spark Plug has a listed pre-gap of 0.032 inches (0.82 mm). However, the required installed gap can vary by engine. Verify the correct spark plug gap using the engine manufacturer's service information before installation rather than assuming the listed pre-gap is the required setting.\u003c\/li\u003e\n\u003cli\u003eWhat are the specifications of the Champion 415 RN9YC Marine Spark Plug? The Champion 415 RN9YC has a manufacturer heat range of 9, 14 mm thread diameter, 0.750-inch reach, and 0.813-inch (20.65 mm) hex size. It has a flat seat, one ground electrode, a resistor design, and a listed pre-gap of 0.032 inches (0.82 mm).\u003c\/li\u003e\n\u003cli\u003eDoes the Champion 415 RN9YC Spark Plug include a crush washer? Yes. The Champion 415 RN9YC Copper Plus Marine Spark Plug uses a flat-seat design with an included crush washer. It also has a removable terminal nut for compatible ignition connections.\u003c\/li\u003e\n\u003cli\u003eIs the Champion 415 RN9YC Spark Plug corrosion resistant? The Champion 415 RN9YC features TinTac and ULTRASEAL shell coatings that help resist corrosion. It also uses a nickel-copper alloy ground electrode. These features are part of the spark plug's specified construction for compatible marine engine applications.\u003c\/li\u003e\n\u003cli\u003eHow do I verify that the Champion 415 RN9YC is the correct spark plug for my marine engine? Verify that your engine requires an RN9YC spark plug and confirm the required spark plug gap using the engine manufacturer's service information before installation. Spark plug requirements and installed gap can vary by engine, so the supplied specifications should not be used as a substitute for engine-specific service information.\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Champion Spark Plugs","offers":[{"title":"Default Title","offer_id":50581598994690,"sku":"CHA-RN9YC","price":4.29,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0842\/3024\/2562\/files\/RN9YC__36008.1786990366_a2f62be5-eab1-40be-a68b-b28dc22f7980.jpg?v=1791077504","url":"https:\/\/allmarineworld.com\/products\/champion-415-rn9yc-copper-plus-marine-spark-plug","provider":"All Marine World","version":"1.0","type":"link"}