{"product_id":"champion-388-spark-plug","title":"Champion 388 Spark Plug","description":"\u003ch2\u003eOverview\u003c\/h2\u003e\u003cp\u003eChampion Copper Plus spark plug 388 is built for Harley-Davidson secondary ignition applications that call for a copper-core design and a 0.034 pre-gap. It uses a flat seat, J-gap ground electrode, and resistor construction to support consistent ignition performance in compatible V-twin engines.\u003c\/p\u003e\u003cp\u003eThis spark plug 388 is listed for a wide range of Harley-Davidson models, including Street Glide, Road Glide, and Electra Glide applications. It also cross-references 6R10 and RG6HCC for the same application.\u003c\/p\u003e\u003ch2\u003eKey Features\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eCopper core electrode for improved conductivity and heat control\u003c\/li\u003e\n\u003cli\u003eNickel center and ground electrode materials\u003c\/li\u003e\n\u003cli\u003eJ-gap ground electrode tip design\u003c\/li\u003e\n\u003cli\u003eResistor type construction for ignition system noise control\u003c\/li\u003e\n\u003cli\u003eFlat seat with 0.75 reach and 10 mm thread diameter\u003c\/li\u003e\n\u003cli\u003eChampion Copper Plus line for OE-style service replacement\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eFitment Details\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eFits 2018-2021 Harley-Davidson FLFBS Fat Boy 114, N\/A\u003c\/li\u003e\n\u003cli\u003eFits 2021 Harley-Davidson FLH Electra Glide Revival, N\/A\u003c\/li\u003e\n\u003cli\u003eFits 2018-2021 Harley-Davidson FLHC Heritage Classic 107, N\/A\u003c\/li\u003e\n\u003cli\u003eFits 2018-2021 Harley-Davidson FLHCS Heritage Classic 114, N\/A\u003c\/li\u003e\n\u003cli\u003eFits 2017-2021 Harley-Davidson FLHR Road King, N\/A\u003c\/li\u003e\n\u003cli\u003eFits 2017-2021 Harley-Davidson FLHRXS Road King Special, N\/A\u003c\/li\u003e\n\u003cli\u003eFits 2020-2021 Harley-Davidson FLHT Electra Glide Standard, N\/A\u003c\/li\u003e\n\u003cli\u003eFits 2017-2021 Harley-Davidson FLHTCUTG Tri Glide Ultra, N\/A\u003c\/li\u003e\n\u003cli\u003eFits 2020-2021 Harley-Davidson FLHTCUTGSE CVO Tri Glide, N\/A\u003c\/li\u003e\n\u003cli\u003eFits 2017-2021 Harley-Davidson FLHTK Ultra Limited, N\/A\u003c\/li\u003e\n\u003cli\u003eFits 2017-2021 Harley-Davidson FLHTKSE CVO Limited, N\/A\u003c\/li\u003e\n\u003cli\u003eFits 2017-2021 Harley-Davidson FLHX Street Glide, N\/A\u003c\/li\u003e\n\u003cli\u003eFits 2017-2021 Harley-Davidson FLHXS Street Glide Special, N\/A\u003c\/li\u003e\n\u003cli\u003eFits 2017-2021 Harley-Davidson FLHXSE CVO Street Glide, N\/A\u003c\/li\u003e\n\u003cli\u003eFits 2017-2021 Harley-Davidson FLRT Freewheeler, N\/A\u003c\/li\u003e\n\u003cli\u003eFits 2018-2021 Harley-Davidson FLSB Sport Glide 107, N\/A\u003c\/li\u003e\n\u003cli\u003eFits 2018-2021 Harley-Davidson FLSL Softail Slim 107, N\/A\u003c\/li\u003e\n\u003cli\u003eFits 2020-2021 Harley-Davidson FLTRK Road Glide Limited, N\/A\u003c\/li\u003e\n\u003cli\u003eFits 2017-2021 Harley-Davidson FLTRX Road Glide, N\/A\u003c\/li\u003e\n\u003cli\u003eFits 2017-2021 Harley-Davidson FLTRXS Road Glide Special, N\/A\u003c\/li\u003e\n\u003cli\u003eFits 2018-2021 Harley-Davidson FLTRXSE CVO Road Glide, N\/A\u003c\/li\u003e\n\u003cli\u003eFits 2021 Harley-Davidson FXBBS Street Bob 114, N\/A\u003c\/li\u003e\n\u003cli\u003eFits 2018-2021 Harley-Davidson FXFBS Fat Bob 114, N\/A\u003c\/li\u003e\n\u003cli\u003eFits 2020-2021 Harley-Davidson FXLRS Low Rider S 114, N\/A\u003c\/li\u003e\n\u003cli\u003eFits 2020-2021 Harley-Davidson FXST Softail Standard 107, N\/A\u003c\/li\u003e\n\u003cli\u003eFits 2018-2020 Harley-Davidson FLDE Deluxe 107, N\/A\u003c\/li\u003e\n\u003cli\u003eFits 2018-2020 Harley-Davidson FXBB Street Bob 107, N\/A\u003c\/li\u003e\n\u003cli\u003eFits 2018-2020 Harley-Davidson FXBRS Breakout 114, N\/A\u003c\/li\u003e\n\u003cli\u003eFits 2019-2020 Harley-Davidson FXDRS FXDR 114, N\/A\u003c\/li\u003e\n\u003cli\u003eFits 2018-2020 Harley-Davidson FXLR Low Rider 107, N\/A\u003c\/li\u003e\n\u003cli\u003eFits 2015-2020 Harley-Davidson XG500 Street 500, N\/A\u003c\/li\u003e\n\u003cli\u003eFits 2015-2020 Harley-Davidson XG750 Street 750, N\/A\u003c\/li\u003e\n\u003cli\u003eFits 2017-2020 Harley-Davidson XG750A Street Rod, N\/A\u003c\/li\u003e\n\u003cli\u003eFits 2018-2019 Harley-Davidson FLFB Fat Boy 107, N\/A\u003c\/li\u003e\n\u003cli\u003eFits 2017-2019 Harley-Davidson FLHTCU Electra Glide Ultra Classic, N\/A\u003c\/li\u003e\n\u003cli\u003eFits 2017-2019 Harley-Davidson FLHTKL Ultra Limited Low, N\/A\u003c\/li\u003e\n\u003cli\u003eFits 2017-2019 Harley-Davidson FLTRU Road Glide Ultra, N\/A\u003c\/li\u003e\n\u003cli\u003eFits 2018-2019 Harley-Davidson FXBR Breakout 107, N\/A\u003c\/li\u003e\n\u003cli\u003eFits 2018-2019 Harley-Davidson FXFB Fat Bob 107, N\/A\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eInstallation Notes\u003c\/h2\u003e\u003cp\u003eVerify the specified gap before installation and confirm the plug seat, thread diameter, reach, and heat range match the engine requirements. This spark plug 388 is listed for Harley-Davidson applications that use the RG6HCC plug type reference.\u003c\/p\u003e\u003ch2\u003eQuality Assurance\u003c\/h2\u003e\u003cp\u003eChampion Copper Plus is a service line focused on dependable ignition performance with a copper-core electrode for conductivity and heat control. Part number 388 is a direct replacement-style spark plug for the listed Harley-Davidson applications.\u003c\/p\u003e","brand":"Champion","offers":[{"title":"Default Title","offer_id":53505774747829,"sku":"BBKH-388","price":18.32,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0628\/1442\/1173\/files\/CS_388_Fro.jpg?v=1791701285","url":"https:\/\/www.partcatalog.com\/products\/champion-388-spark-plug","provider":"PartCatalog","version":"1.0","type":"link"}