{"product_id":"champion-rv15yc4-spark-plug-18-4-pack-4-electrode-marine-inboard-volvo-penta-24-rv15yc4","title":"Champion RV15YC4 Spark Plug | #18 | 4-Pack | 4-Electrode Marine Inboard \u0026 Volvo Penta","description":"\u003ch2\u003eFour-Electrode Resistor Spark Plug for High-Output Marine Inboard Engines — 4-Pack.\u003c\/h2\u003e\u003cp\u003eThe Champion RV15YC4 is a projected-tip, resistor-type spark plug with four ground electrodes, designed for Volvo Penta and other marine inboard engines that specify a cooler, multi-electrode plug. Part number 18, the YC4-suffix design combines a projected tip for improved ignitability with four ground electrodes arranged around the centre electrode — delivering more consistent spark initiation and longer service life compared to a standard single-ground plug.\u003c\/p\u003e\u003cp\u003eThe cooler heat range (15) makes the RV15YC4 suited for higher-output or higher-RPM marine inboard engines that generate more combustion heat than lower-output applications. Sold in a 4-pack (Champion part 11044). Always verify fitment against your engine's owner's manual or Champion application guide before ordering.\u003c\/p\u003e\u003ch3\u003eKey Features\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eChampion RV15YC4 spark plug — 4-pack (Champion #18)\u003c\/li\u003e\n\u003cli\u003eFour ground electrodes for consistent spark initiation and improved ignitability\u003c\/li\u003e\n\u003cli\u003eCooler heat range (15) — suited for higher-output or higher-RPM marine inboard applications\u003c\/li\u003e\n\u003cli\u003eProjected tip for improved combustion efficiency\u003c\/li\u003e\n\u003cli\u003eBuilt-in resistor suppresses radio frequency interference (RFI)\u003c\/li\u003e\n\u003cli\u003eDesigned for Volvo Penta and marine inboard engine applications\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eCompatible Applications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eVolvo Penta inboard and sterndrive engines specifying Champion RV15YC4 or equivalent\u003c\/li\u003e\n\u003cli\u003eHigher-output marine inboard engines requiring a cooler, four-electrode plug\u003c\/li\u003e\n\u003cli\u003eAny application cross-referencing Champion #18 or part 11044\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 RV15YC4 is the performance-oriented plug in the RV-series family — the four-electrode design improves spark consistency, and the cooler heat range handles the higher combustion temperatures of more powerful marine inboard engines. If your Volvo Penta or marine inboard engine specifies this plug, it's worth using the correct part rather than substituting a simpler single-electrode plug, as the multi-electrode design contributes to smoother idle and more consistent ignition across all cylinders.\u003c\/p\u003e\u003cp\u003eFor standard single-electrode Volvo Penta applications, see the \u003ca href=\"\/products\/champion-rv12yc-spark-plug-406-4-pack-volvo-penta-marine-inboard-24-rv12yc\"\u003eChampion RV12YC #406\u003c\/a\u003e. For MerCruiser and GM V8-based inboard applications, see the \u003ca href=\"\/products\/champion-rn12yc-spark-plug-404-4-pack-mercruiser-sterndrive-marine-inboard-24-rn12yc\"\u003eChampion RN12YC #404\u003c\/a\u003e. For a broader selection of ignition components, browse our \u003ca href=\"\/collections\/ignition-components\"\u003eIgnition Components\u003c\/a\u003e collection.\u003c\/p\u003e","brand":"LNS","offers":[{"title":"Default Title","offer_id":51250815729700,"sku":"24-RV15YC4","price":8.56,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0743\/5799\/7604\/files\/24-L76V_64e04735-dbff-4267-a59f-1632f202a527.jpg?v=1786510612","url":"https:\/\/marisolmarine.com\/products\/champion-rv15yc4-spark-plug-18-4-pack-4-electrode-marine-inboard-volvo-penta-24-rv15yc4","provider":"Marisol Marine Company","version":"1.0","type":"link"}