{"product_id":"ngk-spark-plug-set-cpr7ea-9-3901-2-pack-nickel-copper-oem-quality-036-pre-gap","title":"NGK Spark Plug Set CPR7EA-9 (3901) 2-Pack — Nickel\/Copper OEM-Quality, .036\" Pre-Gap","description":"\u003cp\u003e\u003cstrong\u003eNGK CPR7EA-9 (3901) is a two-piece set of OEM-quality nickel\/copper spark plugs designed as direct replacement plugs for select Kawasaki, Suzuki, Yamaha and other engines that require a 0.036 in gap and 5\/8\" hex.\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cp\u003eThese NGK spark plugs deliver the standard-replacement performance expected from a global OE supplier, built with a copper core and nickel-alloy tip, ceramic insulator, and a 5,000-ohm resistor to reduce electrical interference. The CPR7EA-9 has a 0.750 in reach, 10.0 mm thread diameter, and a .036 in (0.9 mm) pre-gap, making it suitable for many ATVs, UTVs and motorcycles listed in the fitment below. This listing includes two spark plugs packaged in NGK’s recognizable yellow box; always confirm compatibility with your vehicle’s service manual or manufacturer before installing.\u003c\/p\u003e\n\n\u003ch3\u003eWhat are the key construction details of the CPR7EA-9?\u003c\/h3\u003e\n\u003cp\u003eThe CPR7EA-9 combines a solid copper core for heat dissipation with a nickel-alloy center tip and a nickel ground electrode. A high-grade alumina-silicate ceramic insulator and triple gasket sealing improve dielectric strength and prevent combustion leakage, while trivalent metal plating helps resist corrosion and seizure.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eMaterial grade: nickel\/copper with 98% pure copper core\u003c\/li\u003e\n  \u003cli\u003eResistor: 5000 ohms to suppress electrical interference\u003c\/li\u003e\n  \u003cli\u003eInsulator: high-grade ceramic with triple gasket sealing\u003c\/li\u003e\n  \u003cli\u003eWasher: crush-type for secure flat-seat sealing\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhich vehicles is this NGK plug compatible with?\u003c\/h3\u003e\n\u003cp\u003eThis CPR7EA-9 set fits a range of models from Kawasaki, Suzuki and Yamaha among others where the OEM spec calls for a nickel-type plug with 0.036 in gap and 10 mm threads. Popular compatible machines include Kawasaki KRF800\/Teryx and KRT800 series, KVF750 Brute Force variants, Yamaha XVS950 Bolt models, and certain Suzuki GSX250R years. Always verify year, engine displacement, and factory part numbers for an exact match.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eKawasaki KRF800\/Teryx and KRT800 Teryx4 models 2014–2024 (783cc)\u003c\/li\u003e\n  \u003cli\u003eKawasaki KVF750 Brute Force models 2015–2024 (749cc)\u003c\/li\u003e\n  \u003cli\u003eYamaha XVS950 Bolt and V Star 950 variants 2009–2019 (942cc)\u003c\/li\u003e\n  \u003cli\u003eSuzuki GSX250R 2018–2019 (248cc)\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eHow does installation and maintenance look for these plugs?\u003c\/h3\u003e\n\u003cp\u003eInstallation follows standard spark plug procedures: verify thread size, reach, and seat type (flat seat for this plug), apply the recommended torque, and use the crush washer for proper sealing. The CPR7EA-9 arrives pre-gapped to .036 in; check and adjust gap if required by your service manual before installation.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eHex size: 5\/8\" (16 mm) for standard spark plug socket\u003c\/li\u003e\n  \u003cli\u003eReach: 0.750 in (19.0 mm) — confirm clearance in your cylinder head\u003c\/li\u003e\n  \u003cli\u003ePre-gap: .036 in (0.9 mm) — recheck with a feeler gauge\u003c\/li\u003e\n  \u003cli\u003eThread diameter: 0.394 in (10.0 mm) — ensure matching thread\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhy choose NGK standard nickel plugs over other options?\u003c\/h3\u003e\n\u003cp\u003eNGK’s standard nickel spark plugs are engineered as OE-style replacements where nickel alloy plugs are specified from the factory. They provide dependable conductivity and heat control due to the copper core and broad heat range, and are especially practical for engines originally equipped with nickel-type electrodes rather than precious-metal tips.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eOE-focused design for reliable, cost-effective replacement\u003c\/li\u003e\n  \u003cli\u003eWide heat range and strong thermal transfer from copper core\u003c\/li\u003e\n  \u003cli\u003eDurable plating and gasket sealing for longer service life\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eWho is this for? If you own an ATV, UTV or motorcycle in the models listed and need a cost-effective OEM-style replacement spark plug that matches factory nickel-alloy specifications, the NGK CPR7EA-9 two-pack is a practical choice. It’s aimed at riders and technicians who prefer proven OE fit and function: check vehicle fitment, replace plugs per scheduled maintenance, and use proper torque and gap verification during installation.\u003c\/p\u003e\n\n\u003cp\u003e\u003cem\u003eNote: This product listing is for two NGK CPR7EA-9 (3901) nickel spark plugs. Fitment references are provided for guidance; always verify compatibility against your vehicle’s manufacturer specifications.\u003c\/em\u003e\u003c\/p\u003e\n\u003csection class=\"product-faq-snippet\"\u003e\u003ch3\u003eFAQ\u003c\/h3\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: Are these NGK plugs pre-gapped?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Yes, the CPR7EA-9 plugs come pre-gapped to 0.036 in; verify and adjust gap per your service manual.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: Do these replace precious-metal spark plugs?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: No — these are nickel-alloy standard replacement plugs intended where OEM nickel plugs are specified.\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/section\u003e","brand":"NGK","offers":[{"title":"Default Title","offer_id":48086898114718,"sku":"B009Z3QP9I","price":30.16,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0781\/2041\/9486\/files\/ngk-front-packaging_3e876fed-50e0-4ede-a256-d0493cda5111.jpg?v=1785909338","url":"https:\/\/northtrailauto.ca\/products\/ngk-spark-plug-set-cpr7ea-9-3901-2-pack-nickel-copper-oem-quality-036-pre-gap","provider":"North Trail Auto","version":"1.0","type":"link"}