{"product_id":"ngk-4","title":"NGK Spark Plug - DR7EA","description":"\u003cp\u003eThe \u003cstrong\u003eNGK DR7EA\u003c\/strong\u003e is a standard resistor spark plug used in select motorcycles, ATVs, scooters, utility engines, and specialty small-engine applications where the manufacturer specifies the \u003cstrong\u003eDR7EA \/ NGK 7839\u003c\/strong\u003e plug profile. It uses copper-core nickel construction, a built-in resistor, a 12 mm thread body, and a flat\/gasket-seat design for dependable ignition service in compatible engines.\u003c\/p\u003e\n\u003cp\u003eThis plug should be installed only where the engine service manual, equipment label, or factory application chart specifically calls for \u003cstrong\u003eNGK DR7EA\u003c\/strong\u003e, \u003cstrong\u003eNGK 7839\u003c\/strong\u003e, or an approved equivalent.\u003c\/p\u003e\n\u003ch2\u003e\u003cstrong\u003eKey Features\u003c\/strong\u003e\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eGenuine NGK standard spark plug.\u003c\/li\u003e\n\u003cli\u003eNGK part number: \u003cstrong\u003eDR7EA\u003c\/strong\u003e.\u003c\/li\u003e\n\u003cli\u003eNGK stock number: \u003cstrong\u003e7839\u003c\/strong\u003e.\u003c\/li\u003e\n\u003cli\u003eCopper-core nickel construction for standard service applications.\u003c\/li\u003e\n\u003cli\u003eBuilt-in resistor to help reduce ignition-related RFI noise.\u003c\/li\u003e\n\u003cli\u003eThread diameter: \u003cstrong\u003e12 mm\u003c\/strong\u003e.\u003c\/li\u003e\n\u003cli\u003eThread reach: \u003cstrong\u003e19 mm \/ 3\/4 in.\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003eHex size: \u003cstrong\u003e18 mm\u003c\/strong\u003e.\u003c\/li\u003e\n\u003cli\u003eSeat style: \u003cstrong\u003eflat \/ gasket seat\u003c\/strong\u003e.\u003c\/li\u003e\n\u003cli\u003eTip style: \u003cstrong\u003enon-projected\u003c\/strong\u003e.\u003c\/li\u003e\n\u003cli\u003eHeat range: \u003cstrong\u003e7\u003c\/strong\u003e.\u003c\/li\u003e\n\u003cli\u003eFactory preset gap reference: \u003cstrong\u003e0.028 in. \/ 0.7 mm\u003c\/strong\u003e.\u003c\/li\u003e\n\u003cli\u003eTerminal style: \u003cstrong\u003ethreaded stud \/ removable terminal nut\u003c\/strong\u003e, depending on cap-wire requirement.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003e\u003cstrong\u003eApplication Compatibility\u003c\/strong\u003e\u003c\/h2\u003e\n\u003cp\u003eCommon application context includes select engines where the factory plug chart calls for \u003cstrong\u003eNGK DR7EA \/ 7839\u003c\/strong\u003e, including:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eSelect \u003cstrong\u003eSuzuki motorcycle\u003c\/strong\u003e applications where specified.\u003c\/li\u003e\n\u003cli\u003eSelect \u003cstrong\u003eATV and powersports\u003c\/strong\u003e applications where specified.\u003c\/li\u003e\n\u003cli\u003eSelect \u003cstrong\u003escooter and utility-engine\u003c\/strong\u003e applications where specified.\u003c\/li\u003e\n\u003cli\u003eSelect \u003cstrong\u003eBMW motorcycle\u003c\/strong\u003e applications where the plug chart confirms DR7EA.\u003c\/li\u003e\n\u003cli\u003eSelect Yamaha, Honda, Kawasaki, Suzuki, and other powersports applications where the manufacturer lists the same plug profile.\u003c\/li\u003e\n\u003cli\u003eSelect specialty marine or compact four-stroke applications only where the engine chart specifically calls for \u003cstrong\u003eDR7EA \/ 7839\u003c\/strong\u003e.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eUse this plug only where the manufacturer's application chart lists \u003cstrong\u003eDR7EA\u003c\/strong\u003e, \u003cstrong\u003e7839\u003c\/strong\u003e, or an approved equivalent.\u003c\/p\u003e\n\u003ch2\u003e\u003cstrong\u003eFitment Notice\u003c\/strong\u003e\u003c\/h2\u003e\n\u003cp\u003eConfirm fitment by exact year, make, model, engine size, serial number, service manual, and spark plug chart before ordering. Spark plugs with the same thread diameter can still differ in reach, heat range, seat style, terminal type, resistor design, projection, and required gap. Installing the wrong plug can cause hard starting, misfire, poor idle, overheating, thread damage, piston contact, or ignition-system issues.\u003c\/p\u003e\n\u003ch2\u003e\u003cstrong\u003eWhen This Part Needs Replacement\u003c\/strong\u003e\u003c\/h2\u003e\n\u003cp\u003eReplace spark plugs during scheduled tune-up service or whenever the plug is worn, fouled, fuel-soaked, oil-contaminated, cracked, corroded, damaged, or causing hard starting, rough idle, hesitation, misfire, weak acceleration, or poor throttle response. Engines that idle for long periods, operate in damp conditions, or sit in seasonal storage should have plugs inspected more regularly.\u003c\/p\u003e\n\u003ch2\u003e\u003cstrong\u003eInstallation Notes\u003c\/strong\u003e\u003c\/h2\u003e\n\u003cp\u003eCheck the plug number and required gap before installation. Install into clean, undamaged cylinder head threads and tighten to the engine manufacturer's torque specification for the exact engine. Because this is a gasket-seat plug, confirm the sealing washer is present and seats correctly.\u003c\/p\u003e\n\u003cp\u003eAvoid adding anti-seize unless the engine or spark plug manufacturer specifically calls for it, as thread lubricant can change clamping load and increase the risk of over-tightening in aluminum cylinder heads. Confirm whether the ignition lead requires the removable terminal nut installed or removed before fitting the spark plug cap.\u003c\/p\u003e\n\u003ch2\u003e\u003cstrong\u003eAlternate\/Superseded Part Numbers\u003c\/strong\u003e\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eNGK DR7EA\u003c\/strong\u003e — spark plug part number\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eNGK 7839\u003c\/strong\u003e — NGK stock number\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDR7EA Standard\u003c\/strong\u003e — product style reference\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eNGK stk 7839\u003c\/strong\u003e — catalog stock-number reference\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSuzuki 09482-00222\u003c\/strong\u003e — cross-reference; verify by model and plug chart\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSuzuki 09482-00398\u003c\/strong\u003e — cross-reference; verify by model and plug chart\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eYamaha 94701-00345\u003c\/strong\u003e — cross-reference; verify by model and plug chart\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHonda 98069-57716 \/ 98069-57726\u003c\/strong\u003e — cross-reference; verify by model and plug chart\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDenso X22ESR-U \/ X22ESRU\u003c\/strong\u003e — cross-reference; verify by application\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eChampion RA8HC \/ RA6HC\u003c\/strong\u003e — cross-reference; verify by application\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003e\u003cstrong\u003eParts Desk Insight\u003c\/strong\u003e\u003c\/h2\u003e\n\u003cp\u003eThe \u003cstrong\u003eDR7EA\u003c\/strong\u003e is a 12 mm, 19 mm reach resistor plug with a non-projected firing end and heat range 7. It should be matched by exact plug number and application chart, not just by vehicle category or thread size. Correct reach, seat style, terminal setup, gap, and heat range are all important for reliable ignition and cylinder-head safety.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eShipping:\u003c\/strong\u003e Ships same or next day for fast Canada wide shipping. ⚓\u003c\/p\u003e","brand":"WEST","offers":[{"title":"Default Title","offer_id":43564074434596,"sku":"DR-7-EA","price":7.45,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0743\/5799\/7604\/files\/aa0edefd-5749-413f-ac7c-1063f2e27fe5.png?v=1781206079","url":"https:\/\/marisolmarine.com\/products\/ngk-4","provider":"Marisol Marine Company","version":"1.0","type":"link"}