{"product_id":"ngk-br8eq-14-2329-nickel-spark-plug-box-of-4","title":"NGK Nickel Spark Plug Box of 4 (BR8EQ-14)","description":"\u003cp\u003eThe BR8EQ-14 is a standard nickel multi-ground spark plug from NGK, sold here as a box of 4. It is built around a 14mm thread, 19mm reach, and gasket seat configuration that appears across a wide range of older carbureted engines, marine powerplants, and powersport applications. The multi-ground electrode design provides multiple firing paths, which can help maintain ignition reliability as electrodes wear over time. Each plug includes a removable nut terminal for compatibility with both push-on and screw-in spark plug wire connections.\u003c\/p\u003e\u003ch4\u003eMulti-Ground Electrode Design\u003c\/h4\u003e\u003cp\u003eUnlike a standard single-ground plug, the BR8EQ-14 uses multiple ground electrodes arranged around the center electrode. When one ground electrode gap widens with normal wear, the spark can jump to an adjacent electrode that remains within a tighter gap, maintaining consistent ignition performance over more miles. This design is common in marine, powersport, and older industrial engines where service intervals are longer or less predictable and where a misfire can be more disruptive or harder to diagnose quickly.\u003c\/p\u003e\u003ch4\u003eNickel Construction and Heat Range 8\u003c\/h4\u003e\u003cp\u003eThe center electrode uses a 2.5mm nickel alloy tip, a proven material choice for standard replacement plugs in applications that do not require the longevity of platinum or iridium. The heat range of 8 places this plug toward the colder end of NGK's heat range scale, meaning it transfers heat away from the firing tip more aggressively. A colder heat range is appropriate for engines running at sustained higher RPM or under heavier load, such as marine engines at wide-open throttle or powersport engines in competitive use.\u003c\/p\u003e\u003ch4\u003eResistor Construction and 5k Ohm Suppression\u003c\/h4\u003e\u003cp\u003eThe BR8EQ-14 includes a 5,000 Ohm internal resistor. This resistor suppresses electromagnetic interference generated during ignition, which is especially important in marine environments where onboard electronics, GPS units, VHF radios, and depth finders are sensitive to ignition noise. The resistor also reduces wear on distributor cap and rotor contacts in older ignition systems.\u003c\/p\u003e\u003ch4\u003eConfirming Fitment for Your Application\u003c\/h4\u003e\u003cp\u003eThis is a universal spark plug, not a vehicle-specific replacement part. Applications include various marine outboard and inboard engines, powersport engines, and older carbureted street or off-road engines that specify a 14mm, 19mm reach, gasket seat plug at heat range 8. NGK's online application guide is the authoritative source for confirming whether the BR8EQ-14 is correct for your specific engine model, year, and configuration.\u003c\/p\u003e\u003ch4\u003eSold as a Box of 4\u003c\/h4\u003e\u003cp\u003eThis listing is for a complete box of 4 NGK BR8EQ-14 plugs. Four-cylinder engine owners receive a full set in a single order. For V6, V8, or other cylinder counts, order the appropriate quantity of boxes. Each plug in the box is individually packaged in a protective wrapper to prevent shipping damage to the electrode and ceramic insulator.\u003c\/p\u003e\u003ch4\u003eWhat's Included\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e4 x NGK BR8EQ-14 standard nickel multi-ground spark plugs\u003c\/li\u003e\n\u003cli\u003eRemovable nut terminal pre-installed on each plug\u003c\/li\u003e\n\u003cli\u003eNGK specification card\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eProduct Specifications\u003c\/h4\u003e\u003ctable\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eSpecification\u003c\/th\u003e\n\u003cth\u003eValue\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eManufacturer Part Number (MPN)\u003c\/td\u003e\n\u003ctd\u003eBR8EQ-14\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eNGK Stock Number\u003c\/td\u003e\n\u003ctd\u003e2329\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eQuantity per Box\u003c\/td\u003e\n\u003ctd\u003e4\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eThread Diameter\u003c\/td\u003e\n\u003ctd\u003e14mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eThread Pitch\u003c\/td\u003e\n\u003ctd\u003e1.25mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSeat Type\u003c\/td\u003e\n\u003ctd\u003eGasket\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eReach\u003c\/td\u003e\n\u003ctd\u003e19mm (3\/4 inch)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHex Size\u003c\/td\u003e\n\u003ctd\u003e13\/16 inch (21mm)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTerminal Type\u003c\/td\u003e\n\u003ctd\u003eRemovable Nut\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePre-Set Gap\u003c\/td\u003e\n\u003ctd\u003e0.055 inch (1.4mm)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCenter Electrode\u003c\/td\u003e\n\u003ctd\u003eNickel standard, 2.5mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eGround Electrode\u003c\/td\u003e\n\u003ctd\u003eNickel multi-ground\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eResistor\u003c\/td\u003e\n\u003ctd\u003eYes, 5k Ohm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHeat Range\u003c\/td\u003e\n\u003ctd\u003e8\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eEstimated Longevity\u003c\/td\u003e\n\u003ctd\u003eUp to 50,000 miles (application-dependent)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTorque Spec (Cast Iron Head)\u003c\/td\u003e\n\u003ctd\u003e18 to 25.3 lb-ft\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTorque Spec (Aluminum Head)\u003c\/td\u003e\n\u003ctd\u003e18 to 21.6 lb-ft\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWarranty\u003c\/td\u003e\n\u003ctd\u003eNGK 60-day limited warranty\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eUPC\u003c\/td\u003e\n\u003ctd\u003e087295123294\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\u003ch4\u003eFrequently Asked Questions\u003c\/h4\u003e\u003cp\u003e\u003cstrong\u003eWhat types of engines commonly use the BR8EQ-14?\u003c\/strong\u003e\u003cbr\u003eThe BR8EQ-14 is used primarily in older carbureted marine engines, powersport engines such as personal watercraft, ATVs, and snowmobiles, and some older carbureted automotive engines that specify a 14mm, 19mm reach, gasket seat plug at heat range 8. It is not designed for modern direct-injected or port fuel-injected gasoline street vehicle engines.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow do I confirm whether this plug fits my specific engine?\u003c\/strong\u003e\u003cbr\u003eUse NGK's online spark plug application guide at ngksparkplugs.com, where you can search by engine manufacturer, model, displacement, and year. Thread diameter, reach, seat type, and heat range must all match your engine's specification.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhy does this plug have multiple ground electrodes?\u003c\/strong\u003e\u003cbr\u003eThe multi-ground design provides more than one path for the spark to jump from the center electrode. As the primary ground electrode gap widens through wear, the spark migrates to the next-closest electrode, extending effective service life and reducing intermittent misfires.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eDo I need to gap the plugs before installation?\u003c\/strong\u003e\u003cbr\u003eNGK sets the gap at the factory to 0.055 inch (1.4mm). However, your specific engine may call for a different gap. Check your engine manufacturer's service documentation and verify or adjust before installation.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat torque should I use when installing the BR8EQ-14?\u003c\/strong\u003e\u003cbr\u003eFor cast iron cylinder heads, torque each plug to between 18 and 25.3 lb-ft. For aluminum cylinder heads, use 18 to 21.6 lb-ft. Always install spark plugs with the engine cold to avoid galling the threads.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs the removable nut terminal already attached?\u003c\/strong\u003e\u003cbr\u003eYes. Each plug ships with the removable nut terminal pre-installed. If your spark plug wires use a push-on connector, unscrew the nut terminal and set it aside. If your wires use a screw-on connector, leave the nut in place.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat is the estimated service life of the BR8EQ-14?\u003c\/strong\u003e\u003cbr\u003eNGK rates these plugs for up to 50,000 miles under normal operating conditions. Actual service life varies significantly by application; marine and powersport engines may see shorter intervals. Follow your engine manufacturer's service schedule.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat does NGK's 60-day warranty cover for these plugs?\u003c\/strong\u003e\u003cbr\u003eNGK's standard 60-day limited warranty covers defects in materials and workmanship present at the time of manufacture. It does not cover plugs that have been installed in the wrong application, improperly gapped, or damaged during installation. Under the Magnuson-Moss Warranty Act, the full terms are available from NGK prior to purchase.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs this plug appropriate for a modern fuel-injected car or truck?\u003c\/strong\u003e\u003cbr\u003eGenerally no. Modern fuel-injected street vehicle engines typically require iridium or platinum fine-wire plugs. The BR8EQ-14 is a nickel standard plug designed for older carbureted and magneto-ignition engines. Installing the wrong plug type in a modern engine can cause misfires and fault codes.\u003c\/p\u003e\u003ch4\u003eWarranty Information\u003c\/h4\u003e\u003cp\u003eEach BR8EQ-14 plug is covered by NGK's 60-day limited warranty against defects in materials and workmanship. Under the Magnuson-Moss Warranty Act, the complete warranty terms must be disclosed prior to purchase.\u003c\/p\u003e","brand":"NGK","offers":[{"title":"Default Title","offer_id":45957740855375,"sku":"NGK2329","price":41.96,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1062\/7920\/files\/ngk-br8eq-14-2329-nickel-spark-plug-box-of-4-1.png?v=1782337061","url":"https:\/\/www.blackopsautoworks.com\/products\/ngk-br8eq-14-2329-nickel-spark-plug-box-of-4","provider":"Black Ops Auto Works","version":"1.0","type":"link"}