{"product_id":"champion-ql77jc4-marine-spark-plug-828s-shop-pack-24-count-mercury-4-stroke-24-ql77jc4sp","title":"Champion QL77JC4 Marine Spark Plug | #828S Shop Pack | 24-Count | Mercury 4-Stroke Outboard","description":"\u003ch2\u003eStock Up for the Season — QL77JC4 in a 24-Count Shop Pack.\u003c\/h2\u003e\u003cp\u003eThe Champion #828S Shop Pack gives you 24 QL77JC4 marine spark plugs in a single purchase — the same plug as the \u003ca href=\"\/products\/champion-ql77jc4-marine-spark-plug-828m-4-pack-mercury-4-stroke-24-ql77jc4\"\u003eChampion #828M 4-Pack\u003c\/a\u003e, in a bulk quantity designed for marine service shops, dealers, and boaters who service multiple vessels or want to stock up for the season.\u003c\/p\u003e\u003cp\u003eThe QL77JC4 is one of the most widely specified marine spark plugs for Mercury 4-stroke outboard engines, featuring four ground electrodes around a fine-wire centre electrode for consistent spark initiation, improved ignitability, and longer service life. At 24 plugs per pack, the per-plug cost is significantly lower than buying individual 4-packs.\u003c\/p\u003e\u003ch3\u003eKey Features\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eChampion QL77JC4 marine spark plug — 24-count shop pack (Champion #828S)\u003c\/li\u003e\n\u003cli\u003eSame plug as the #828M 4-Pack — bulk quantity for service shops and multi-vessel owners\u003c\/li\u003e\n\u003cli\u003eFour ground electrodes for consistent spark initiation and improved ignitability\u003c\/li\u003e\n\u003cli\u003eFine-wire centre electrode for reduced voltage requirement and longer service life\u003c\/li\u003e\n\u003cli\u003eLong-reach QL-series thread with projected tip — engineered for Mercury 4-stroke outboard combustion chambers\u003c\/li\u003e\n\u003cli\u003eResistor construction suppresses radio frequency interference (RFI)\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eCompatible Applications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eMercury 4-stroke outboard engines specifying Champion QL77JC4 or equivalent\u003c\/li\u003e\n\u003cli\u003eApplications cross-referencing Mercury OEM spark plug part 896329828\u003c\/li\u003e\n\u003cli\u003eMarine service shops and dealers performing high-volume Mercury 4-stroke outboard tune-ups\u003c\/li\u003e\n\u003cli\u003eBoaters servicing multiple Mercury 4-stroke outboards or stocking for the full season\u003c\/li\u003e\n\u003cli\u003eVerify fitment using your engine's owner's manual or the Champion spark plug application guide\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eParts Desk Insights\u003c\/h3\u003e\u003cp\u003eThe shop pack is the right buy for any marine service operation that regularly tunes Mercury 4-stroke outboards — the QL77JC4 is one of the highest-volume plugs in the Mercury 4-stroke lineup, and having a full box on hand means you're never waiting on a parts order mid-service. The per-plug cost at 24 count is meaningfully lower than buying 4-packs individually.\u003c\/p\u003e\u003cp\u003eIf you only need plugs for a single engine service, the \u003ca href=\"\/products\/champion-ql77jc4-marine-spark-plug-828m-4-pack-mercury-4-stroke-24-ql77jc4\"\u003eChampion QL77JC4 #828M 4-Pack\u003c\/a\u003e is the right quantity. For the NGK equivalent, see the \u003ca href=\"\/products\/quicksilver-ngk-iridium-spark-plug-set-889246q39\"\u003eQuicksilver NGK Iridium Spark Plug Set\u003c\/a\u003e.\u003c\/p\u003e","brand":"LNS","offers":[{"title":"Default Title","offer_id":51250815074340,"sku":"24-QL77JC4SP","price":249.83,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0743\/5799\/7604\/files\/24-UL77VSP.jpg?v=1786510604","url":"https:\/\/marisolmarine.com\/products\/champion-ql77jc4-marine-spark-plug-828s-shop-pack-24-count-mercury-4-stroke-24-ql77jc4sp","provider":"Marisol Marine Company","version":"1.0","type":"link"}