{"product_id":"ngk-spark-plugs-bpr4es-4-pack-copper-core-pre-gapped-for-4-cylinder-engines","title":"NGK Spark Plugs BPR4ES 4-Pack, Copper Core Pre-Gapped for 4-Cylinder Engines","description":"\u003cp\u003e\u003cstrong\u003eNGK BPR4ES (stock #6578) spark plugs are a 4-pack of OEM-quality replacement plugs designed to restore reliable ignition and consistent combustion for compatible 4-cylinder engines.\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cp\u003eBuilt by NGK, a leader in ignition components, these BPR4ES plugs combine a solid copper core, extended insulator nose and anti-flashover ribs to deliver dependable sparks, long-term wear resistance and straightforward installation. Each plug arrives pre-gapped to common OEM settings, but we recommend checking the gap before fitting to match your engine specification. This listing covers the standard-series BPR4ES in a convenient four-pack — ideal for a full cylinder bank service on many classic and later small 4-cylinder cars, trucks and vans.\u003c\/p\u003e\n\n\u003ch3\u003eWhich vehicles will these NGK BPR4ES spark plugs fit?\u003c\/h3\u003e\n\u003cp\u003eThe BPR4ES (stock #6578) is specified for a wide range of older GM, Chrysler, Dodge, Plymouth, Mercury, Oldsmobile and Mitsubishi-based models that use 4-cylinder engines. Compatibility typically calls for a 0.035\" gap (some models note 0.034\" or 0.044\"), and many factory service intervals list roughly 30,000-mile replacement recommendations for equivalent OE plugs. Always cross-check year, engine displacement and OEM part numbers before purchasing.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eCommon fits: Chevrolet Chevy II, Nova, GMC PB1000 series, and select Suburban years\u003c\/li\u003e\n  \u003cli\u003eExtensive Chrysler\/Dodge\/Mitsubishi coverage: Daytona, Caravan, Shadow, Spirit, and more\u003c\/li\u003e\n  \u003cli\u003eClassic and later 4-cyl engines with OE-equivalent BPR4ES specification\u003c\/li\u003e\n  \u003cli\u003eVerify exact gap (0.035\" typical) and engine application before install\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eHow do these plugs affect performance and fuel use?\u003c\/h3\u003e\n\u003cp\u003eNGK designs these standard-series plugs to promote stable combustion and reliable ignitability across everyday driving conditions. A strong, consistent spark helps the engine run more smoothly and can contribute to steady fuel burn; however, gains depend on overall ignition and fuel system condition. Replacing worn or fouled plugs with fresh BPR4ES units often restores lost throttle response and idle quality.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eSolid copper core for robust spark energy delivery\u003c\/li\u003e\n  \u003cli\u003eLonger insulator nose reduces fouling in the combustion chamber\u003c\/li\u003e\n  \u003cli\u003eCorrugated insulator ribs prevent flashover from the boot\u003c\/li\u003e\n  \u003cli\u003eZinc-dipped shell resists corrosion for easier future removal\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhat should I know about installation and maintenance?\u003c\/h3\u003e\n\u003cp\u003eEach NGK BPR4ES arrives pre-gapped to common factory settings, but you should confirm gap and torque to the vehicle maker’s specification before tightening. Use anti-seize on threaded areas only if recommended by the vehicle manual; NGK shells are zinc-dipped to limit corrosion. Replace all plugs on the same bank at once for uniform performance and use the correct socket and torque wrench to avoid damaging ceramic or threads.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003ePre-gapped out of the box — verify and adjust as needed\u003c\/li\u003e\n  \u003cli\u003eFollow OEM torque specs and tightening sequence\u003c\/li\u003e\n  \u003cli\u003eReplace complete cylinder bank with this 4-pack for consistency\u003c\/li\u003e\n  \u003cli\u003eCheck ignition wires\/coil boots when changing plugs\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eAre these NGK plugs durable and reliable?\u003c\/h3\u003e\n\u003cp\u003eConstructed to meet or exceed original equipment standards, these BPR4ES plugs use proven materials and manufacturing processes for predictable service life in typical driving. The copper core and protective shell features aid longevity in older engines and systems prone to fouling. While not a specialty performance or iridium plug, they are a cost-effective, dependable OE-style replacement for many maintenance and restoration jobs.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eOE-equivalent design for consistent, everyday durability\u003c\/li\u003e\n  \u003cli\u003eMaterials chosen to reduce wear and firing degradation\u003c\/li\u003e\n  \u003cli\u003eSuitable for automotive, small engine, and light performance use\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eWho is this for: Mechanics, restoration enthusiasts and DIY owners of older cars and light trucks seeking an OEM-style, cost-effective replacement spark plug will find the NGK BPR4ES 4-pack (stock #6578) a practical choice. It’s especially useful when servicing complete 4-cylinder banks on vehicles listed in the compatibility data or when returning a vehicle to reliable, factory-like ignition performance.\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 NGK BPR4ES plugs pre-gapped?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Yes, they arrive pre-gapped (commonly 0.035\"), but you should verify and adjust to your vehicle's specification before installation.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: How many miles between changes with these plugs?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: These standard NGK plugs commonly match OEM intervals around 30,000 miles; actual life varies with engine and driving conditions.\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/section\u003e","brand":"NGK","offers":[{"title":"Default Title","offer_id":67594437820601,"sku":"B0722D33HV","price":53.25,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0822\/3765\/3177\/files\/ngk-bpr4es-front-packaging_6d20e0cd-9128-42a3-ab44-681b99603d74.jpg?v=1790583772","url":"https:\/\/redleafauto.ca\/products\/ngk-spark-plugs-bpr4es-4-pack-copper-core-pre-gapped-for-4-cylinder-engines","provider":"Redleaf Auto","version":"1.0","type":"link"}