{"product_id":"weistec-spark-plugs-m157-m278-ngk-01-157-00727-0","title":"Weistec Spark Plugs, M157 \/ M278, NGK for Mercedes-Benz","description":"\u003cp\u003eThese M157 \/ M278 spark plugs are designed and manufactured for not only high power applications but also factory replacement. The factory plugs do not handle the M157’s high cylinder pressures very well and frequently result in misfire problems, even on unmodified vehicles.\u003c\/p\u003e\n    \u003cp\u003eThe M157 \/ M278 spark plugs are also 1 step colder to help prevent pre-ignition in engines that are making more power than stock allowing you to further push the envelope of your vehicle.\u003c\/p\u003e\n    \n    \u003cbr\u003e\u003cbr\u003e\n    \n    \u003ch2\u003eProduct Overview\u003c\/h2\u003e\n    \u003cp\u003e\n        A spark plug (sometimes, in British English, a sparking plug, and, colloquially, a plug) \n        is a device for delivering electric current from an ignition system to the combustion chamber\n        of a spark-ignition engine to ignite the compressed fuel\/air mixture by an electric spark,\n        while containing combustion pressure within the engine. A spark plug has a metal threaded\n        shell, electrically isolated from a central electrode by a ceramic insulator. The central\n        electrode, which may contain a resistor, is connected by a heavily insulated wire to the\n        output terminal of an ignition coil or magneto. The spark plug's metal shell is screwed\n        into the engine's cylinder head and thus electrically grounded. The central electrode \n        protrudes through the porcelain insulator into the combustion chamber, forming one or more \n        spark gaps between the inner end of the central electrode and usually one or more protuberances \n        or structures attached to the inner end of the threaded shell and designated the side, earth, \n        or ground electrode(s). M157\/ M278 spark plugs are designed and manufactured for not only high \n        power applications but also factory replacement. The factory plugs do not handle the M157's \n        high cylinder pressures very well and frequently result in misfire problems, even on unmodified \n        vehicles. The M157\/ M278 spark plugs are also 1 step colder to help prevent pre-ignition in \n        engines that are making more power than stock allowing you to further push the envelope of your vehicle.   \n    \u003c\/p\u003e    \n\n    \u003cdiv class=\"rflex-container\"\u003e\n    \n      \u003cdiv\u003e\n        \u003cimg loading=\"lazy\" src=\"graphics\/00000001\/m\/1\/m157_sp_3.jpg\" alt=\"NGKSparkplugM157M278Set\"\u003e\n      \u003c\/div\u003e\n    \n      \u003cdiv\u003e\n        \u003ch2\u003eKey Features\u003c\/h2\u003e\n        \u003cul\u003e\n            \u003cli\u003e\n            \u003cp\u003eHigher Output for High Boost Applications\u003c\/p\u003e\n            \u003c\/li\u003e\n            \u003cli\u003e\n            \u003cp\u003eColder range for better performance with increased horsepower levels\u003c\/p\u003e\n            \u003c\/li\u003e\n            \u003cli\u003e\n            \u003cp\u003eDirect replacement \/ bolt in for M157 \/ M278 engines\u003c\/p\u003e\n            \u003c\/li\u003e\n            \u003cli\u003e\n            \u003cp\u003eSuitable for all M157 \/ M278 vehicles from stock to highly modified\u003c\/p\u003e\n            \u003c\/li\u003e\n            \u003cli\u003e\n            \u003cp\u003eSet of 8\u003c\/p\u003e\n            \u003c\/li\u003e\n            \u003c\/ul\u003e\n \n      \u003c\/div\u003e\n    \u003c\/div\u003e\n    \n    \u003cbr\u003e\u003cbr\u003e\n    \n    \u003cdiv class=\"flex-container\"\u003e\n    \n      \u003cdiv\u003e\n        \u003ch2\u003eGeneral Information\u003c\/h2\u003e\n\t\u003ctable\u003e\n\t\t\u003ctbody\u003e\n\t\t\t\u003ctr\u003e\n\t\t\t\t\u003ctd\u003eManufactorer:\u003c\/td\u003e\n\t\t\t\t\u003ctd\u003eNGK\u003c\/td\u003e\n\t\t\t\u003c\/tr\u003e\n\t\t\t\u003ctr\u003e\n\t\t\t\t\u003ctd\u003eModel Name:\u003c\/td\u003e\n\t\t\t\t\u003ctd\u003eSpark Plug Set\u003c\/td\u003e\n\t\t\t\u003c\/tr\u003e\n\t\t\t\u003ctr\u003e\n\t\t\t\t\u003ctd\u003eColor:\u003c\/td\u003e\n\t\t\t\t\u003ctd\u003eSilver, White\u003c\/td\u003e\n\t\t\t\u003c\/tr\u003e\n\t\t\t\u003ctr\u003e\n\t\t\t\t\u003ctd\u003eModel No:\u003c\/td\u003e\n\t\t\t\t\u003ctd\u003eM157\u003c\/td\u003e\n\t\t\t\u003c\/tr\u003e\n\t\t\u003c\/tbody\u003e\n\t \u003c\/table\u003e\n         \u003cbr\u003e\n\n        \u003ch2\u003eSpecifications\u003c\/h2\u003e\n\t\u003ctable\u003e\n\t\t\u003ctbody\u003e\n\t\t\t\u003ctr\u003e\n\t\t\t\t\u003ctd\u003eKey Width:\u003c\/td\u003e\n\t\t\t\t\u003ctd\u003e14 mm\u003c\/td\u003e\n\t\t\t\u003c\/tr\u003e\n\t\t\t\u003ctr\u003e\n\t\t\t\t\u003ctd\u003eThread Diameter:\u003c\/td\u003e\n\t\t\t\t\u003ctd\u003e12.0 mm\u003c\/td\u003e\n\t\t\t\u003c\/tr\u003e\n\t\t\t\u003ctr\u003e\n\t\t\t\t\u003ctd\u003eThread Length:\u003c\/td\u003e\n\t\t\t\t\u003ctd\u003e26.5 mm\u003c\/td\u003e\n\t\t\t\u003c\/tr\u003e\n\t\t\t\u003ctr\u003e\n\t\t\t\t\u003ctd\u003eElectrode Distance:\u003c\/td\u003e\n\t\t\t\t\u003ctd\u003e1 mm\u003c\/td\u003e\n\t\t\t\u003c\/tr\u003e\n\t\t\t\u003ctr\u003e\n\t\t\t\t\u003ctd\u003eResistance:\u003c\/td\u003e\n\t\t\t\t\u003ctd\u003eGenerated, 1KOhm\u003c\/td\u003e\n\t\t\t\u003c\/tr\u003e\n\t\t\t\u003ctr\u003e\n\t\t\t\t\u003ctd\u003eType:\u003c\/td\u003e\n\t\t\t\t\u003ctd\u003eLaser Iridium\u003c\/td\u003e\n\t\t\t\u003c\/tr\u003e\n\t\t\u003c\/tbody\u003e\n\t\u003c\/table\u003e\n  \n      \u003c\/div\u003e\n    \n      \u003cdiv\u003e\n        \u003cimg loading=\"lazy\" src=\"graphics\/00000001\/m\/1\/m157_sp_2.jpg\" alt=\"NGKSparkplugM157M278\"\u003e\n      \u003c\/div\u003e\n    \u003c\/div\u003e\n    \n    \u003cbr\u003e\u003cbr\u003e\n        \n    \u003cp\u003e\u003cem\u003e* Important: Please be sure to check and set spark plug gap prior to installation. \u003c\/em\u003e\u003c\/p\u003e\u003cp\u003e\u003c\/p\u003e\n\u003ch3\u003eVehicle fitment\u003c\/h3\u003e\n\u003cul class=\"fitment-list\"\u003e\n\u003cli\u003e2011-2014 Mercedes-Benz CL500 Coupe\u003c\/li\u003e\n\u003cli\u003e2011-2014 Mercedes-Benz CL550 Coupe\u003c\/li\u003e\n\u003cli\u003e2011-2014 Mercedes-Benz CL63 AMG Coupe\u003c\/li\u003e\n\u003cli\u003e2011-2017 Mercedes-Benz S500 Base\u003c\/li\u003e\n\u003cli\u003e2011-2017 Mercedes-Benz S63 AMG Base\u003c\/li\u003e\n\u003cli\u003e2011-2018 Mercedes-Benz CLS500 Coupe\u003c\/li\u003e\n\u003cli\u003e2011-2018 Mercedes-Benz CLS63 AMG Coupe\u003c\/li\u003e\n\u003cli\u003e2011-2018 Mercedes-Benz CLS63 AMG Shooting Brake\u003c\/li\u003e\n\u003cli\u003e2012-2015 Mercedes-Benz GL63 AMG Base\u003c\/li\u003e\n\u003cli\u003e2012-2015 Mercedes-Benz ML500 Base\u003c\/li\u003e\n\u003cli\u003e2012-2015 Mercedes-Benz ML550 Base\u003c\/li\u003e\n\u003cli\u003e2012-2015 Mercedes-Benz ML63 AMG Base\u003c\/li\u003e\n\u003cli\u003e2012-2016 Mercedes-Benz E500 Base\u003c\/li\u003e\n\u003cli\u003e2012-2016 Mercedes-Benz E500 Cabrio\u003c\/li\u003e\n\u003cli\u003e2012-2016 Mercedes-Benz E550 Base\u003c\/li\u003e\n\u003cli\u003e2012-2016 Mercedes-Benz E63 AMG Base\u003c\/li\u003e\n\u003cli\u003e2012-2017 Mercedes-Benz E550 Cabriolet\u003c\/li\u003e\n\u003cli\u003e2012-2017 Mercedes-Benz E550 Coupe\u003c\/li\u003e\n\u003cli\u003e2012-2017 Mercedes-Benz G63 AMG Base\u003c\/li\u003e\n\u003cli\u003e2012-2017 Mercedes-Benz S550 Base\u003c\/li\u003e\n\u003cli\u003e2012-2018 Mercedes-Benz CLS500 Shooting Brake\u003c\/li\u003e\n\u003cli\u003e2012-2018 Mercedes-Benz CLS550 Coupe\u003c\/li\u003e\n\u003cli\u003e2012-2019 Mercedes-Benz SL63 AMG Roadster\u003c\/li\u003e\n\u003cli\u003e2012-2020 Mercedes-Benz SL500 Roadster\u003c\/li\u003e\n\u003cli\u003e2012-2020 Mercedes-Benz SL550 Roadster\u003c\/li\u003e\n\u003cli\u003e2013-2014 Mercedes-Benz GL450 Base\u003c\/li\u003e\n\u003cli\u003e2013-2015 Mercedes-Benz G63 AMG 6x6\u003c\/li\u003e\n\u003cli\u003e2013-2015 Mercedes-Benz GL500 Base\u003c\/li\u003e\n\u003cli\u003e2013-2015 Mercedes-Benz GL550 Base\u003c\/li\u003e\n\u003cli\u003e2013-2016 Mercedes-Benz E500 Coupe\u003c\/li\u003e\n\u003cli\u003e2013-2016 Mercedes-Benz E500 T-Modell\u003c\/li\u003e\n\u003cli\u003e2013-2016 Mercedes-Benz E63 AMG S 4Matic\u003c\/li\u003e\n\u003cli\u003e2014-2017 Mercedes-Benz S550 Coupe\u003c\/li\u003e\n\u003cli\u003e2014-2017 Mercedes-Benz S63 AMG Coupe\u003c\/li\u003e\n\u003cli\u003e2014-2018 Mercedes-Benz CLS63 AMG S 4Matic\u003c\/li\u003e\n\u003cli\u003e2015-2017 Mercedes-Benz S63 AMG Cabriolet\u003c\/li\u003e\n\u003cli\u003e2015-2019 Mercedes-Benz GLE63 AMG S Base\u003c\/li\u003e\n\u003cli\u003e2015-2019 Mercedes-Benz GLE63 AMG S Coupe\u003c\/li\u003e\n\u003cli\u003e2015-2019 Mercedes-Benz GLE63 AMG Base\u003c\/li\u003e\n\u003cli\u003e2015-2019 Mercedes-Benz GLE63 AMG Coupe\u003c\/li\u003e\n\u003cli\u003e2015-2019 Mercedes-Benz GLS500 Base\u003c\/li\u003e\n\u003cli\u003e2015-2019 Mercedes-Benz GLS63 AMG Base\u003c\/li\u003e\n\u003cli\u003e2016-2018 Mercedes-Benz GLE550 Coupe\u003c\/li\u003e\n\u003cli\u003e2016-2020 Mercedes-Benz GLE500 Base\u003c\/li\u003e\n\u003cli\u003e2016-2020 Mercedes-Benz GLE550 Base\u003c\/li\u003e\n\u003cli\u003e2017-2019 Mercedes-Benz GLS550 Base\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003ca href=\"https:\/\/drive.google.com\/open?id=1aBNeBezNLPGVL0fJi52u_kZWVbOZ5_Oe\" target=\"_blank\" rel=\"noopener\"\u003eInstallation manual\u003c\/a\u003e\u003c\/p\u003e\n\u003cp\u003eWeistec part number: 01-157-00727-0 · UPC: 810089561411\u003c\/p\u003e","brand":"Weistec","offers":[{"title":"Default Title","offer_id":60049959158046,"sku":"WEI01-157-00727-0","price":199.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0759\/7965\/3406\/files\/m157_sp_1_1.jpg?v=1790380255","url":"https:\/\/shop.signatureautohaus.com\/products\/weistec-spark-plugs-m157-m278-ngk-01-157-00727-0","provider":"Signature Autohaus","version":"1.0","type":"link"}