{"product_id":"ngk-cr8eb-copper-spark-plug-7784","title":"NGK CR8EB Copper Spark Plug – 7784","description":"\u003ch2\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0056\/9429\/2079\/files\/ngk_logo_1.png?v=1780608867\" alt=\"\"\u003e\u003c\/h2\u003e\n\u003ch2\u003eNGK CR8EB Copper Spark Plug – 7784\u003c\/h2\u003e\n\u003cp\u003eKeep your BRP Rotax marine engine running smoothly with the NGK CR8EB Copper Spark Plug, stock number 7784. Designed for dependable ignition performance in compact four-stroke marine engines, the CR8EB combines NGK's proven copper-core construction with a resistor design that delivers consistent spark, effective heat transfer, and reliable operation throughout the boating season.\u003c\/p\u003e\n\u003cp\u003eThe solid copper core helps move heat away from the firing tip while providing excellent electrical conductivity. This makes the NGK 7784 a dependable choice for engines that see frequent starting, extended cruising, and changing RPM ranges. Its resistor construction also helps suppress electrical interference that can affect sensitive onboard electronics.\u003c\/p\u003e\n\u003cp\u003eReplacing worn or fouled plugs can help correct hard starting, rough idle, hesitation, misfires, and reduced performance. Whether you're completing scheduled maintenance or preparing your watercraft for another season, the CR8EB provides a proven replacement for compatible BRP Rotax 900 ACE applications.\u003c\/p\u003e\n\u003ch3\u003eSpark Plug Specifications\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cp\u003eManufacturer: NGK\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eNGK Part Number: CR8EB\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eNGK Stock Number: 7784\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003ePlug Type: Standard copper-core resistor spark plug\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eHeat Range: 8\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eThread Diameter: 10 mm\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eThread Reach: 19 mm\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eHex Size: 16 mm\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eRecommended Gap: 0.8 mm\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eSeat Type: Gasket\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eSold Individually\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eCommon Engine Applications\u003c\/h3\u003e\n\u003cp\u003eThe NGK CR8EB \/ 7784 spark plug is commonly used with the BRP Rotax 900 ACE three-cylinder four-stroke engine family, including:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cp\u003eBRP Rotax 900 ACE\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eBRP Rotax 900 ACE 60 HP\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eBRP Rotax 900 ACE 90 HP\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eBRP Rotax 900 ACE HO\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eCommon Sea-Doo Fitments\u003c\/h3\u003e\n\u003cp\u003eDepending on model year and engine configuration, the NGK CR8EB is used in Sea-Doo models such as:\u003c\/p\u003e\n\u003ch4\u003eSea-Doo Spark\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cp\u003eSea-Doo Spark 2UP 900 ACE\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eSea-Doo Spark 3UP 900 ACE\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eSea-Doo Spark 60\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eSea-Doo Spark 90\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eSea-Doo Spark HO\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eSea-Doo Spark TRIXX 1UP\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eSea-Doo Spark TRIXX 2UP\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eSea-Doo Spark TRIXX 3UP\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eSea-Doo GTI \u0026amp; GTS\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cp\u003eSea-Doo GTI 90\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eSea-Doo GTI SE 90\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eSea-Doo GTI 900 ACE\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eSea-Doo GTS 90\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eSea-Doo GTS 900 ACE\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eReplacement \u0026amp; Cross-Reference Numbers\u003c\/h3\u003e\n\u003cp\u003eThe NGK CR8EB may be used as a replacement for select BRP\/Sea-Doo spark plug numbers, including:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cp\u003eBRP 415129403\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eBRP 415130795\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eBRP 420297925\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eAlways confirm the original plug number and engine application before ordering.\u003c\/p\u003e\n\u003ch3\u003eKey Features\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cp\u003eGenuine NGK CR8EB standard spark plug\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eNGK stock number 7784\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eCopper-core construction provides excellent heat dissipation\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eResistor design helps reduce electrical interference\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eSupports reliable starting and smooth acceleration\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eHelps maintain efficient combustion across varying RPM ranges\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eProven fit for select BRP Rotax 900 ACE marine engines\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eIdeal for routine Sea-Doo maintenance and tune-ups\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eDependable Ignition for Rotax 900 ACE Engines\u003c\/h3\u003e\n\u003cp\u003eA fresh set of spark plugs is an important part of keeping a Rotax 900 ACE engine performing properly. Worn electrodes or combustion deposits can weaken spark quality and contribute to poor starting, hesitation, and inconsistent performance. Installing the correct NGK CR8EB plugs helps maintain dependable ignition and smooth power delivery.\u003c\/p\u003e\n\u003cp\u003eFor Sea-Doo Spark, Spark TRIXX, GTI, and GTS models equipped with a compatible BRP Rotax 900 ACE engine, the NGK CR8EB 7784 Spark Plug provides a proven combination of fit, durability, and reliable ignition performance.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eFitment Note:\u003c\/strong\u003e Sea-Doo has used different engines and spark plug specifications across model years. Verify CR8EB \/ NGK 7784 against your engine model, year, or original BRP part number before ordering.\u003c\/p\u003e","brand":"Land 'N' Sea","offers":[{"title":"Default Title","offer_id":50252498895105,"sku":null,"price":10.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0056\/9429\/2079\/files\/Screenshot2026-08-28171959.png?v=1787952007","url":"https:\/\/inboardpartshq.com\/products\/ngk-cr8eb-copper-spark-plug-7784","provider":"Inboard Parts HQ","version":"1.0","type":"link"}