{"product_id":"ngk-5887-laser-iridium-spark-plug-izfr5g-replaces-mercury-33-889597q","title":"NGK 5887 Laser Iridium Spark Plug IZFR5G - Replaces Mercury 33-889597Q","description":"\u003cp\u003eThe NGK 5887 is a Laser Iridium spark plug (NGK part number IZFR5G) engineered as an actual OE or equivalent replacement plug for marine engines. The iridium-tipped center electrode delivers durability that is six times harder than platinum, helping the plug resist wear over long service life. NGK builds the insulator from high-grade pure alumina ceramic paired with a 98% pure copper core, a combination that prevents the plug from overheating while supporting reliable starts in demanding marine use.\u003c\/p\u003e\u003cp\u003eEach Laser Iridium plug is tested to NGK's quality and durability standards before it ships. The NGK 5887 uses a standard ground electrode configuration with a nickel ground electrode core and a copper center electrode core beneath the iridium tip, and it carries a resistance rating of 5000 ohms. The plug is manufactured in Japan and ships one per package. Always check your engine and maintenance manual for the correct spark plug, and use only the plug recommended by your engine's original equipment manufacturer -- using the wrong plug can reduce optimum performance, reduce fuel economy, or cause engine damage.\u003c\/p\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrand:\u003c\/strong\u003e NGK\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number:\u003c\/strong\u003e 5887\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eNGK Part Designation:\u003c\/strong\u003e IZFR5G\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eType:\u003c\/strong\u003e Laser Iridium Spark Plug\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eResistance:\u003c\/strong\u003e 5000 ohms\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eGround Configuration:\u003c\/strong\u003e Standard Ground\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eGround Electrode Core Material:\u003c\/strong\u003e Nickel\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCenter Electrode Core Material:\u003c\/strong\u003e Copper\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCenter Electrode Tip Material:\u003c\/strong\u003e Iridium\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInsulator Material:\u003c\/strong\u003e Pure Alumina Ceramic\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePackage Quantity:\u003c\/strong\u003e 1\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCountry of Origin:\u003c\/strong\u003e Japan\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProduct Dimensions:\u003c\/strong\u003e 0.31 x 0.39 x 1.26 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight:\u003c\/strong\u003e 0.15 pounds\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eReplaces (OEM)\u003c\/h3\u003e\u003cul\u003e\u003cli\u003eQuicksilver \/ Mercury 33-889597Q\u003c\/li\u003e\u003c\/ul\u003e\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eWhat does the NGK 5887 spark plug replace?\u003c\/strong\u003e The NGK 5887 (IZFR5G) directly replaces Quicksilver\/Mercury spark plug 33-889597Q.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs the NGK 5887 spark plug genuine OEM or aftermarket?\u003c\/strong\u003e NGK produces the 5887 (IZFR5G) as an actual OE or equivalent replacement spark plug, tested to NGK's quality and durability standards.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat is the center electrode tip made of on the NGK 5887?\u003c\/strong\u003e Iridium is the center electrode tip material on the NGK 5887 spark plug, offering durability six times harder than platinum.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow many spark plugs are included when I order the NGK 5887?\u003c\/strong\u003e One NGK 5887 spark plug ships per package.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat is the resistance rating of the NGK 5887 spark plug?\u003c\/strong\u003e 5000 ohms is the resistance rating of the NGK 5887 (IZFR5G) spark plug.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow much does the NGK 5887 spark plug weigh?\u003c\/strong\u003e The NGK 5887 spark plug weighs 0.15 pounds.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat ground electrode configuration does the NGK 5887 use?\u003c\/strong\u003e The NGK 5887 spark plug uses a standard ground electrode configuration.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhere is the NGK 5887 spark plug manufactured?\u003c\/strong\u003e Japan is the country of origin for the NGK 5887 (IZFR5G) spark plug.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat are the physical dimensions of the NGK 5887 spark plug?\u003c\/strong\u003e The NGK 5887 spark plug measures 0.31 x 0.39 x 1.26 inches.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow does the NGK 5887 Laser Iridium plug differ from NGK's standard spark plugs?\u003c\/strong\u003e NGK's Laser Iridium plugs, including the 5887 (IZFR5G), use an iridium-tipped center electrode for durability six times harder than platinum, while NGK's standard spark plugs use a nickel center electrode tip with corrosion-resistant plating.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat core materials are used inside the NGK 5887 spark plug?\u003c\/strong\u003e The NGK 5887 uses a nickel ground electrode core and a copper center electrode core, both housed in a pure alumina ceramic insulator with a 98% pure copper core.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow do I confirm the NGK 5887 is the correct spark plug for my engine?\u003c\/strong\u003e Check your engine and maintenance manual for the correct spark plug and only use the plug recommended by your engine's original equipment manufacturer before installing the NGK 5887, since using the wrong plug can reduce performance, reduce fuel economy, or cause engine damage.\u003c\/p\u003e","brand":"NGK Spark Plugs","offers":[{"title":"Default Title","offer_id":49028254597339,"sku":"NGK-IZFR5G","price":16.96,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0839\/7586\/4539\/files\/889597Q__26094.1722383647.500.750.jpg?v=1785165238","url":"https:\/\/www.goodvibesmarina.com\/products\/ngk-5887-laser-iridium-spark-plug-izfr5g-replaces-mercury-33-889597q","provider":"Good Vibes Marina","version":"1.0","type":"link"}