{"product_id":"ngk-b7hs-standard-spark-plug-fits-outboard-sterndrive-and-pwc-engines","title":"NGK B7HS Standard Spark Plug - Fits Outboard, Sterndrive and PWC Engines","description":"\u003cp\u003eThe NGK B7HS is a Standard spark plug built on NGK's proven OE plug design, used across a wide range of outboard, sterndrive, personal watercraft, and other small-engine applications. It uses a solid copper core for superior heat dissipation and conductivity, paired with a broad heat range for consistent, reliable ignition performance. The plug is treated with corrosion-resistant plating on the shell and threads, which keeps installation and future removal easier over the life of the plug and helps prevent seizing in the cylinder head.\u003c\/p\u003e\u003cp\u003eElectrode construction is nickel on both the ground and center electrode tip, with a copper core running through the center electrode for efficient heat transfer away from the firing tip. The plug carries a Standard ground electrode configuration and measures 1 ohm of resistance. NGK Standard plugs like the B7HS are positioned as an OE-cornerstone design, meaning they replicate the fit, heat range, and performance characteristics engine manufacturers originally specified.\u003c\/p\u003e\u003cp\u003eFitment covers Subaru engines (1970-68), ATV applications from ATK, various motorcycle applications, PWC applications including Surf Jet and Yamaha, snowmobile applications from Moto-Ski and Ski-Doo, sterndrive (I\/O) applications from Hardin, outboard applications from Evinrude, Force, Johnson, Mariner, Mercury, Sea King, Sears, Suzuki, Tohatsu, and Yamaha, portable engine applications from Kawasaki Outdoor Power, and various commercial\/industrial applications. Always confirm the correct spark plug against your engine's maintenance manual before ordering, since using the wrong plug can reduce performance, hurt 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 B7HS\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProduct Type:\u003c\/strong\u003e Standard Spark Plug\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eResistance:\u003c\/strong\u003e 1 ohm\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eGround Electrode Configuration:\u003c\/strong\u003e Standard\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 Nickel\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThread Size:\u003c\/strong\u003e 14 millimeters\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUnit Count:\u003c\/strong\u003e 1 spark plug\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUPC:\u003c\/strong\u003e 087295151105\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight:\u003c\/strong\u003e 0.15 pounds\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFitment\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eSubaru, 1970-68\u003c\/li\u003e\n\u003cli\u003eATV - ATK\u003c\/li\u003e\n\u003cli\u003eMotorcycle - Various\u003c\/li\u003e\n\u003cli\u003ePWC - Surf Jet, Yamaha\u003c\/li\u003e\n\u003cli\u003eSnowmobile - Moto-Ski, Ski-Doo\u003c\/li\u003e\n\u003cli\u003eSterndrive (I\/O) - Hardin\u003c\/li\u003e\n\u003cli\u003eOutboard - Evinrude, Force, Johnson, Mariner, Mercury, Sea King, Sears, Suzuki, Tohatsu, Yamaha\u003c\/li\u003e\n\u003cli\u003ePortable Engines - Kawasaki Outdoor Power\u003c\/li\u003e\n\u003cli\u003eCommercial\/Industrial - Various\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eWhat engines does the NGK B7HS spark plug fit?\u003c\/strong\u003e The NGK B7HS fits Subaru engines (1970-68), ATK ATVs, various motorcycles, Surf Jet and Yamaha PWC, Moto-Ski and Ski-Doo snowmobiles, Hardin sterndrive engines, outboards from Evinrude, Force, Johnson, Mariner, Mercury, Sea King, Sears, Suzuki, Tohatsu, and Yamaha, Kawasaki Outdoor Power portable engines, and various commercial\/industrial engines.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs the B7HS a resistor spark plug?\u003c\/strong\u003e The NGK B7HS has 1 ohm of resistance, which is very low compared to NGK's resistor plugs that run around 5000 ohms, so it functions as a standard (non-resistor) plug rather than a high-resistance suppressor plug.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat is the electrode material on the B7HS?\u003c\/strong\u003e The B7HS uses a nickel ground electrode and a nickel center electrode tip, with a copper core running through the center electrode for heat dissipation and conductivity.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat thread size does the NGK B7HS use?\u003c\/strong\u003e The NGK B7HS spark plug has a 14 millimeter thread size.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow much does the NGK B7HS weigh?\u003c\/strong\u003e The NGK B7HS spark plug weighs 0.15 pounds.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eDoes the B7HS come with corrosion protection?\u003c\/strong\u003e Yes, the B7HS is treated with corrosion-resistant plating on the shell and threads, which makes installation and future removal easier over the plug's service life.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow many spark plugs come in the package?\u003c\/strong\u003e The NGK B7HS is sold as a single spark plug (unit count of 1).\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs the NGK B7HS an OE-style plug or an aftermarket design?\u003c\/strong\u003e The B7HS is part of NGK's Standard line, described by NGK as an OE-cornerstone design intended to match original equipment fit and performance rather than being a departure from OE specification.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat ground electrode configuration does the B7HS use?\u003c\/strong\u003e The NGK B7HS uses a Standard ground electrode configuration.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWill the B7HS work in my Mercury or Evinrude outboard?\u003c\/strong\u003e The NGK B7HS is listed as fitting Evinrude, Force, Johnson, Mariner, Mercury, Sea King, Sears, Suzuki, Tohatsu, and Yamaha outboard engines, but you should confirm against your engine's maintenance manual before ordering.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat core material gives the B7HS its heat dissipation?\u003c\/strong\u003e The NGK B7HS uses a solid copper core in the center electrode, which NGK states provides superior heat dissipation, conductivity, and broad heat range.\u003c\/p\u003e","brand":"NGK Spark Plugs","offers":[{"title":"Default Title","offer_id":49028252958939,"sku":"NGK-B7HS","price":3.05,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0839\/7586\/4539\/files\/NGK-B6S_lg_4__61489.1558134036.500.750.jpg?v=1785165218","url":"https:\/\/www.goodvibesmarina.com\/products\/ngk-b7hs-standard-spark-plug-fits-outboard-sterndrive-and-pwc-engines","provider":"Good Vibes Marina","version":"1.0","type":"link"}