{"product_id":"ngk-3710-spark-plug-b7s-copper-core-fits-mercury-outboard-1966-1960","title":"NGK 3710 Spark Plug (B7S) - Copper Core, Fits Mercury Outboard 1966-1960","description":"\u003cp\u003eThe NGK 3710 is a standard NGK spark plug (NGK model designation B7S) built on NGK's proven copper-core design. It uses a solid copper core center electrode for strong heat dissipation and conductivity across a broad heat range, paired with a nickel center electrode tip and nickel ground electrode in a standard ground configuration. The plug shell is treated with corrosion-resistant plating, which keeps the threads turning freely for easy installation and removal even after extended service.\u003c\/p\u003e\u003cp\u003eThis is a resistor-style plug rated at 1 Ohm of resistance, which helps suppress ignition noise. The insulator is ceramic and the thread is sized M14 x 1.25. NGK Standard plugs like the 3710 are positioned as an OE-cornerstone design, meaning they replicate the specification and performance NGK has supplied to original equipment manufacturers for decades.\u003c\/p\u003e\u003cp\u003eFitment for the NGK 3710 (B7S) spans outboard, power equipment, and industrial applications: Mercury outboard motors (1966-1960), Briggs \u0026amp; Stratton, Kohler, and Kubota power equipment engines, Bolens and Poulan Pro chainsaws, Onan and Tanaka generators, Wood Pro and Tanaka blowers, H.M.C. String trimmers, and commercial\/industrial engines from Hall Scott, Subaru-Robin, and Waukesha, as well as Tohatsu farm engines. 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 damage the engine.\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 3710\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eNGK Plug Designation:\u003c\/strong\u003e B7S\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\u003eInsulator Material:\u003c\/strong\u003e Ceramic\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThread Size:\u003c\/strong\u003e M14 x 1.25\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eQuantity:\u003c\/strong\u003e 1 spark plug\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUPC:\u003c\/strong\u003e 087295137109\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\u003eMercury outboard motors, 1966-1960\u003c\/li\u003e\n\u003cli\u003eBriggs \u0026amp; Stratton power equipment engines\u003c\/li\u003e\n\u003cli\u003eKohler power equipment engines\u003c\/li\u003e\n\u003cli\u003eKubota power equipment engines\u003c\/li\u003e\n\u003cli\u003eBolens chainsaws\u003c\/li\u003e\n\u003cli\u003ePoulan Pro chainsaws\u003c\/li\u003e\n\u003cli\u003eOnan generators\u003c\/li\u003e\n\u003cli\u003eTanaka generators and blowers\u003c\/li\u003e\n\u003cli\u003eWood Pro blowers\u003c\/li\u003e\n\u003cli\u003eH.M.C. String trimmers\u003c\/li\u003e\n\u003cli\u003eHall Scott commercial\/industrial engines\u003c\/li\u003e\n\u003cli\u003eSubaru-Robin commercial\/industrial engines\u003c\/li\u003e\n\u003cli\u003eWaukesha commercial\/industrial engines\u003c\/li\u003e\n\u003cli\u003eTohatsu farm engines\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eReplaces (OEM)\u003c\/h3\u003e\u003cp\u003eNo additional OEM cross-reference numbers are listed for the NGK 3710 (B7S) beyond its own NGK part number. Always verify against your engine's maintenance manual.\u003c\/p\u003e\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eWhat engines does the NGK 3710 spark plug fit?\u003c\/strong\u003e The NGK 3710 (NGK model B7S) fits Mercury outboard motors from 1966-1960, along with Briggs \u0026amp; Stratton, Kohler, and Kubota power equipment engines, Bolens and Poulan Pro chainsaws, Onan and Tanaka generators, Wood Pro and Tanaka blowers, H.M.C. String trimmers, Hall Scott, Subaru-Robin, and Waukesha commercial\/industrial engines, and Tohatsu farm engines.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs the NGK 3710 the same plug as the NGK B7S?\u003c\/strong\u003e Yes, 3710 is the part number for the NGK B7S standard spark plug; both refer to the same plug.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat is the thread size on this spark plug?\u003c\/strong\u003e The NGK 3710 uses an M14 x 1.25 thread size.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs this a resistor spark plug?\u003c\/strong\u003e Yes, the NGK 3710 is rated at 1 Ohm of resistance, which is a resistor-type plug that helps suppress ignition noise.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat materials are used in the electrodes?\u003c\/strong\u003e The NGK 3710 has a copper center electrode core with a nickel center electrode tip, and a nickel ground electrode in a standard ground configuration.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eDoes the NGK 3710 fit 1966-1960 Mercury outboards specifically?\u003c\/strong\u003e Yes, Mercury outboard motors from the 1966-1960 range are a listed fitment for the NGK 3710 spark plug.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow many spark plugs come in this listing?\u003c\/strong\u003e This listing is for one NGK 3710 (B7S) spark plug.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat is the insulator material on the NGK 3710?\u003c\/strong\u003e The insulator on the NGK 3710 spark plug is ceramic.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow much does the NGK 3710 spark plug weigh?\u003c\/strong\u003e The NGK 3710 spark plug weighs 0.15 pounds.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eAre there OEM cross-reference numbers for the NGK 3710?\u003c\/strong\u003e No additional OEM cross-reference numbers are listed for the NGK 3710 (B7S); it is identified by its own NGK part number.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhy does corrosion-resistant plating matter on a spark plug?\u003c\/strong\u003e The corrosion-resistant plating on the NGK 3710 shell keeps the threads from seizing, which makes the plug easier to install and remove during future maintenance.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eShould I confirm fitment before ordering the NGK 3710?\u003c\/strong\u003e Yes, check your engine's maintenance manual against the NGK 3710 (B7S) fitment list before ordering, since the wrong spark plug can reduce performance, hurt fuel economy, or damage the engine.\u003c\/p\u003e","brand":"NGK Spark Plugs","offers":[{"title":"Default Title","offer_id":49028252991707,"sku":"NGK-B7S","price":2.55,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0839\/7586\/4539\/files\/NGK-B6S_lg_6__86566.1558134157.500.750.jpg?v=1785165218","url":"https:\/\/www.goodvibesmarina.com\/products\/ngk-3710-spark-plug-b7s-copper-core-fits-mercury-outboard-1966-1960","provider":"Good Vibes Marina","version":"1.0","type":"link"}