{"product_id":"champion-905-spark-plug","title":"Champion 905 Spark Plug","description":"\u003ch2\u003eChampion Copper Plus 905 Spark Plug Overview\u003c\/h2\u003e\u003cp\u003eChampion Copper Plus 905 is a replacement spark plug built for dependable ignition performance in a range of high-performance and small-engine applications. Its copper core electrode improves conductivity and heat control, while nickel-based electrode materials support consistent wear characteristics.\u003c\/p\u003e\u003cp\u003eUse Champion 905 when you need a direct-fit spark plug for select Ferrari and Lamborghini applications, including models such as the Ferrari 348, 456, 550 Maranello, and Lamborghini Diablo.\u003c\/p\u003e\u003ch2\u003eKey Features\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eCopper core electrode for improved conductivity and heat management\u003c\/li\u003e\n\u003cli\u003eNickel center electrode tip and nickel ground electrode core material\u003c\/li\u003e\n\u003cli\u003eResistor-type design for ignition system noise control\u003c\/li\u003e\n\u003cli\u003eFlat seat construction with 0.75 in. reach\u003c\/li\u003e\n\u003cli\u003e0.025 in. pre-gap size and removable nut terminal\u003c\/li\u003e\n\u003cli\u003eChampion Copper Plus small engine classification\u003c\/li\u003e\n\u003cli\u003ePart number 905 for easy catalog matching\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eProduct Details\u003c\/h2\u003e\u003cp\u003eThe Champion Copper Plus line focuses on practical ignition service with a copper core that helps transfer heat away from the firing end and maintain stable performance under operating load. This plug uses a 12 mm thread diameter, 15.880 mm hex size, and a resistor design, making it a straightforward service part for applications that specify the RA4HC plug type. For buyers searching for a Champion 905 spark plug or a Copper Plus replacement for Ferrari 348, Ferrari 456, Ferrari 550 Maranello, or Lamborghini Diablo applications, this part provides the core specifications needed for a proper match.\u003c\/p\u003e\u003cp\u003eThis part cross-references NGK 2316 for the same application.\u003c\/p\u003e\u003ch2\u003eWhat It Helps Address\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eHard starting caused by worn or fouled spark plugs\u003c\/li\u003e\n\u003cli\u003eMisfire conditions from weak or inconsistent spark delivery\u003c\/li\u003e\n\u003cli\u003eRough idle and hesitation under acceleration\u003c\/li\u003e\n\u003cli\u003eReduced ignition efficiency from excessive plug wear\u003c\/li\u003e\n\u003cli\u003eHeat-related plug performance issues in demanding engines\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eInstallation Notes and Tips\u003c\/h2\u003e\u003cp\u003eVerify the required plug type, thread diameter, reach, seat style, and gap before installation. Champion 905 is listed with a 0.025 in. pre-gap, while several vehicle applications note a 0.024-0.036 in. service gap in the fitment data; confirm the engine specification before use. Check the terminal style and use the removable nut only if your ignition lead requires it. For fitment reference, this plug is listed for 1984-1987 Ferrari GTO, 1985-1989 Lamborghini Countach, 1986-1990 Lamborghini LM002, 1989-1993 Ferrari Mondial t, 1990-2001 Lamborghini Diablo, and 2005-2010 Ferrari 612 Scaglietti.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eFits 1984-1987 Ferrari GTO, N\/A\u003c\/li\u003e\n\u003cli\u003eFits 1985-1989 Lamborghini Countach, N\/A\u003c\/li\u003e\n\u003cli\u003eFits 1986-1990 Lamborghini LM002, N\/A\u003c\/li\u003e\n\u003cli\u003eFits 1989-1993 Ferrari Mondial t, N\/A\u003c\/li\u003e\n\u003cli\u003eFits 1990-2001 Lamborghini Diablo, N\/A\u003c\/li\u003e\n\u003cli\u003eFits 1991-1993 Lamborghini LM American, N\/A\u003c\/li\u003e\n\u003cli\u003eFits 1992-1994 Ferrari 512 TR, N\/A\u003c\/li\u003e\n\u003cli\u003eFits 1993-1995 Ferrari 348 Spider, N\/A\u003c\/li\u003e\n\u003cli\u003eFits 1993-1994 Ferrari 348 GTB, N\/A\u003c\/li\u003e\n\u003cli\u003eFits 1993-1994 Ferrari 348 GTS, N\/A\u003c\/li\u003e\n\u003cli\u003eFits 1995 Ferrari 512 M, N\/A\u003c\/li\u003e\n\u003cli\u003eFits 1995-1998 Ferrari 456 GT, N\/A\u003c\/li\u003e\n\u003cli\u003eFits 1997-1998 Ferrari 456 GTA, N\/A\u003c\/li\u003e\n\u003cli\u003eFits 1997-2002 Ferrari 550 Maranello, N\/A\u003c\/li\u003e\n\u003cli\u003eFits 1999-2001 Ferrari 456 M, N\/A\u003c\/li\u003e\n\u003cli\u003eFits 2002-2004 Ferrari 456 M GT, N\/A\u003c\/li\u003e\n\u003cli\u003eFits 2002-2004 Ferrari 456 M GTA, N\/A\u003c\/li\u003e\n\u003cli\u003eFits 2002-2005 Ferrari 575 M Maranello, N\/A\u003c\/li\u003e\n\u003cli\u003eFits 2005 Ferrari Superamerica, N\/A\u003c\/li\u003e\n\u003cli\u003eFits 2005-2010 Ferrari 612 Scaglietti, N\/A\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eQuality Assurance\u003c\/h2\u003e\u003cp\u003eChampion Copper Plus spark plugs are built around a copper core electrode and nickel electrode materials for consistent service characteristics in specified applications. Part number 905 is cataloged to match the listed RA4HC applications and interchange references for accurate replacement selection.\u003c\/p\u003e","brand":"Champion","offers":[{"title":"Default Title","offer_id":52431261466805,"sku":"BBKH-905","price":9.54,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0628\/1442\/1173\/files\/CS_905_Fro.jpg?v=1777848592","url":"https:\/\/www.partcatalog.com\/products\/champion-905-spark-plug","provider":"PartCatalog","version":"1.0","type":"link"}