{"product_id":"champion-ql77jc4-marine-spark-plug-copper-core-cross-ref-828m-fits-evinrude-mariner-omc-suzuki-volvo-penta-yamaha-outboards","title":"Champion QL77JC4 Marine Spark Plug, Copper Core, Cross-Ref 828M, Fits Evinrude, Mariner, OMC, Suzuki, Volvo Penta, Yamaha Outboards","description":"\u003cp\u003eThe Champion QL77JC4 is a marine spark plug built as an OE type replacement, engineered to conform to ISO and SAE standards for dependable performance and durability. At its core is a copper center electrode that increases conductivity and improves heat control, giving the plug good overall wear characteristics even under the heavy, sustained loads typical of outboard engine operation. The nickel copper alloy electrode allows for accurate heat range control, extending service life, while a resistor terminal and flat seat design support consistent ignition performance. The plug resists fouling and offers strong corrosion resistance, making it a reliable choice for routine ignition maintenance on compatible outboard motors.\u003c\/p\u003e\u003cp\u003eThe Champion QL77JC4 is compatible with a range of outboard engine brands, including Evinrude, Mariner, OMC, Suzuki, Volvo Penta, and Yamaha. Because compatibility can vary by specific engine model, boat owners should confirm fitment against their engine's parts documentation before ordering. This plug is cross-referenced to Champion Spark Plug number 828M, making it easy to identify as a direct equivalent when replacing an existing plug carrying that designation.\u003c\/p\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrand:\u003c\/strong\u003e Champion\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number:\u003c\/strong\u003e CCH828M\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eChampion Spark Plug Number:\u003c\/strong\u003e 828M\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCore Material:\u003c\/strong\u003e Copper\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCenter Electrode Material:\u003c\/strong\u003e Nickel copper alloy\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThread Size:\u003c\/strong\u003e 14 millimeters x 1.25 millimeters\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSeat Type:\u003c\/strong\u003e Flat\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eElectrical Terminal Type:\u003c\/strong\u003e Resistor\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIndustry Standards:\u003c\/strong\u003e ISO and SAE conforming\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight:\u003c\/strong\u003e 0.15 pounds\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUPC:\u003c\/strong\u003e 037551005123\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUnit Count:\u003c\/strong\u003e 1 spark plug\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCompatible Outboard Brands:\u003c\/strong\u003e Evinrude, Mariner, OMC, Suzuki, Volvo Penta, Yamaha\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFitment\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eEvinrude outboard engines\u003c\/li\u003e\n\u003cli\u003eMariner outboard engines\u003c\/li\u003e\n\u003cli\u003eOMC outboard engines\u003c\/li\u003e\n\u003cli\u003eSuzuki outboard engines\u003c\/li\u003e\n\u003cli\u003eVolvo Penta outboard engines\u003c\/li\u003e\n\u003cli\u003eYamaha outboard engines\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eReplaces (OEM)\u003c\/h3\u003e\u003cul\u003e\u003cli\u003e828M\u003c\/li\u003e\u003c\/ul\u003e\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eWhat engines is the Champion QL77JC4 spark plug compatible with?\u003c\/strong\u003e The Champion QL77JC4 marine spark plug is compatible with a number of outboard engine brands, including Evinrude, Mariner, OMC, Suzuki, Volvo Penta, and Yamaha. Because compatibility can vary between specific engine models, it is recommended to confirm fitment against the engine's own parts documentation before ordering.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs 828M the same as the QL77JC4 spark plug?\u003c\/strong\u003e Yes, Champion Spark Plug number 828M and the QL77JC4 refer to the same spark plug, so either identifier can be used to find the correct replacement part.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat material is the electrode made of?\u003c\/strong\u003e A copper center electrode is used in the QL77JC4, paired with a nickel copper alloy ground electrode, which together provide increased conductivity and accurate heat range control for a longer service life.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat is the thread size of this spark plug?\u003c\/strong\u003e The Champion QL77JC4 has a 14 millimeter x 1.25 millimeter thread size.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs this a genuine Champion part or an aftermarket equivalent?\u003c\/strong\u003e The QL77JC4 is a genuine Champion spark plug, built as an OE type replacement that conforms to ISO and SAE standards for performance and durability.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow many spark plugs come in one order?\u003c\/strong\u003e Each order of the Champion QL77JC4 (828M) includes one spark plug.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eDoes the QL77JC4 resist fouling and corrosion?\u003c\/strong\u003e Yes, the QL77JC4 is designed to resist fouling and offers superior corrosion resistance, which helps maintain reliable ignition performance in marine environments.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat terminal and seat type does this plug use?\u003c\/strong\u003e The Champion QL77JC4 uses a resistor electrical terminal and a flat seat design.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhy choose a copper core plug like the QL77JC4 over another Champion marine plug?\u003c\/strong\u003e The QL77JC4's copper core electrode provides increased conductivity and heat control for good overall wear, making it well suited to the heavy, sustained loads typical of outboard engine operation.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eCan the QL77JC4 handle heavy engine loads without overheating?\u003c\/strong\u003e Yes, the Champion QL77JC4 is designed to resist overheating under heavy engine loads, which is a key requirement for outboard marine ignition systems.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs the QL77JC4 spark plug built to any recognized standards?\u003c\/strong\u003e The QL77JC4 is built to conform with ISO and SAE standards, supporting dependable performance and durability.\u003c\/p\u003e","brand":"Champion Spark Plugs","offers":[{"title":"Default Title","offer_id":49027462791387,"sku":"CHA-QL77JC4","price":4.52,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0839\/7586\/4539\/files\/QL77JC4__42973.1722503049.500.750_8f90c1d9-586b-4af5-8cff-f568381e5ce9.jpg?v=1785329076","url":"https:\/\/www.goodvibesmarina.com\/products\/champion-ql77jc4-marine-spark-plug-copper-core-cross-ref-828m-fits-evinrude-mariner-omc-suzuki-volvo-penta-yamaha-outboards","provider":"Good Vibes Marina","version":"1.0","type":"link"}