{"product_id":"ngk-cr9ek-spark-plug-stock-number-4548-copper-core-oem-equivalent-bmw-12127653439","title":"NGK CR9EK Spark Plug, Stock Number 4548, Copper Core, OEM Equivalent BMW 12127653439","description":"\u003cp\u003eThe NGK CR9EK is a standard spark plug built around a solid copper core for strong heat dissipation, reliable conductivity, and a broad heat range. It carries NGK Stock Number 4548 and uses a standard ground electrode configuration with a nickel ground electrode, a copper center electrode core, and a nickel center electrode tip. The plug is treated with corrosion-resistant plating so it installs and removes cleanly without seizing in the cylinder head, and its resistor design (5000 ohm \/ 5k) helps suppress ignition noise for smoother running.\u003c\/p\u003e\u003cp\u003eThis is one of NGK's Standard series plugs, the same core plug design NGK has supplied as original equipment for decades, so it is intended as a direct swap for the factory plug in engines that call for the CR9EK specification. The thread size is 14mm x 1.25. Always confirm the correct spark plug specification against your engine's maintenance manual before ordering, since using the wrong plug can reduce performance and 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 CR9EK\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eStock Number:\u003c\/strong\u003e 4548\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUPC:\u003c\/strong\u003e 087295145487\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eResistance:\u003c\/strong\u003e 5000 ohm (5k)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eGround 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 14mm x 1.25\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\n\u003cli\u003eBMW 12127653439\u003c\/li\u003e\n\u003cli\u003eBMW 12127710636\u003c\/li\u003e\n\u003cli\u003eSuzuki 948200410000\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eWhat is the NGK CR9EK spark plug?\u003c\/strong\u003e The NGK CR9EK is a standard spark plug (NGK Stock Number 4548) built with a solid copper core for heat dissipation and conductivity, a nickel ground electrode, and a copper center electrode core with a nickel tip.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat OEM part numbers does the CR9EK cross to?\u003c\/strong\u003e The CR9EK, NGK Stock Number 4548, is an OEM equivalent to BMW 12127653439, BMW 12127710636, and Suzuki 948200410000.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat is the thread size on this spark plug?\u003c\/strong\u003e The NGK CR9EK uses a 14mm x 1.25 thread size.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat is the resistance rating of the CR9EK?\u003c\/strong\u003e This plug has a resistance rating of 5000 ohm (5k), which helps suppress ignition noise for smoother engine operation.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs the CR9EK a resistor-type spark plug?\u003c\/strong\u003e Yes, the NGK CR9EK carries a 5000 ohm resistance rating, consistent with a resistor-type design.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat materials are used in the CR9EK electrodes?\u003c\/strong\u003e The NGK CR9EK, Stock Number 4548, has a nickel ground electrode, a copper center electrode core, and a nickel center electrode tip.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eDoes the CR9EK come with any corrosion protection?\u003c\/strong\u003e Yes, the CR9EK is treated with corrosion-resistant plating that makes installation and removal easier and helps prevent seizing in the cylinder head over time.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow much does the NGK CR9EK weigh?\u003c\/strong\u003e The NGK CR9EK spark plug weighs 0.15 pounds.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow many spark plugs come in a package?\u003c\/strong\u003e The NGK CR9EK, Stock Number 4548, is sold as a single spark plug per unit.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs the CR9EK a genuine NGK plug or an aftermarket copy?\u003c\/strong\u003e The CR9EK is a genuine NGK Standard series spark plug, not an aftermarket copy, and reflects the same core design NGK has supplied as original equipment for years.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow do I know if the CR9EK is the correct plug for my engine?\u003c\/strong\u003e Check your engine's maintenance manual for the specific spark plug it calls for before installing the NGK CR9EK (Stock Number 4548), since using an incorrect plug can reduce performance and fuel economy or damage the engine.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat ground electrode configuration does the CR9EK use?\u003c\/strong\u003e The NGK CR9EK uses a standard ground electrode configuration.\u003c\/p\u003e","brand":"NGK Spark Plugs","offers":[{"title":"Default Title","offer_id":49028254269659,"sku":"NGK-CR9EK","price":10.25,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0839\/7586\/4539\/files\/61G8_usGyoL._UF10001000_QL80___73448.1752586597.500.750.jpg?v=1785165233","url":"https:\/\/www.goodvibesmarina.com\/products\/ngk-cr9ek-spark-plug-stock-number-4548-copper-core-oem-equivalent-bmw-12127653439","provider":"Good Vibes Marina","version":"1.0","type":"link"}