{"product_id":"ngk-spark-plug-wire-set-rc-fx101-4-wire-silicone-magnetic-core-leads-low-resistance-and-emi-suppression","title":"NGK spark plug wire set RC-FX101 — 4-wire silicone magnetic-core leads, low resistance and EMI suppression","description":"\u003cp\u003e\u003cstrong\u003eNGK RC-FX101 (55004) is a complete 4-wire spark plug wire set engineered for low electrical resistance, strong EMI\/RFI suppression and durable high-temperature performance.\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cp\u003eThis NGK wire set replaces worn ignition leads with a 7 mm, wire-wound, magnetic-core construction designed to deliver consistent spark energy while limiting electromagnetic interference. Built with high-temperature silicone outer jackets and reinforced inner insulation, the RC-FX101 meets or exceeds OEM tolerances for many domestic and import engines. Numbered and color-coded leads simplify installation so you can restore reliable ignition without guesswork.\u003c\/p\u003e\n\n\u003ch3\u003eHow does this wire set reduce radio and electronic interference?\u003c\/h3\u003e\n\u003cp\u003eThe RC-FX101 uses a variable-pitch wire winding wrapped around a magnetic core to disrupt and dissipate electromagnetic waves created when a plug fires. This design prevents stray energy from affecting nearby electronics and radio reception, maintaining cleaner electrical operation.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eWire-wound magnetic core construction for built-in suppression\u003c\/li\u003e\n  \u003cli\u003eVariable-pitch winding scatters high-frequency emissions across a broad range\u003c\/li\u003e\n  \u003cli\u003eMaintains stable suppression across differing engine RPMs and loads\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhat materials make these leads durable under the hood?\u003c\/h3\u003e\n\u003cp\u003eNGK combines a high-temp silicone outer jacket with a dense fiberglass braid and EPDM\/silicone inner insulation to resist heat, oil and ozone. Stainless steel terminal ends and reinforced tensile construction help the wires withstand vibration and maintain a secure connection for long service life.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eSilicone jacket rated for temperatures up to 250°C (482°F)\u003c\/li\u003e\n  \u003cli\u003eHigh-density fiberglass braiding for dielectric strength and abrasion resistance\u003c\/li\u003e\n  \u003cli\u003eCorrosion-resistant stainless steel terminals with positive-locking fit\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWill this set fit my engine and make installation easy?\u003c\/h3\u003e\n\u003cp\u003eNGK manufactures the RC-FX101 to meet strict OE specifications, so fit and function align with factory expectations on compatible vehicles. Wires are numbered for cylinder identification and coil leads are color-coded, which speeds up routing and ensures correct connections during replacement.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eNumbered wires for quick cylinder identification\u003c\/li\u003e\n  \u003cli\u003eColor-coded coil leads to prevent mix-ups during installation\u003c\/li\u003e\n  \u003cli\u003eDesigned to meet or exceed OEM tolerance for fit and length on specified applications\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eHow does this wire set affect engine performance and operating costs?\u003c\/h3\u003e\n\u003cp\u003eBy delivering low-resistance, consistent spark energy while suppressing interference, NGK wires help the ignition system operate efficiently. That can translate into smoother running and more reliable combustion compared with degraded or high-resistance leads, supporting fuel-efficient operation when paired with a properly maintained ignition system.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eUltra-low resistance for dependable spark delivery\u003c\/li\u003e\n  \u003cli\u003eConsistent firing reduces misfires and uneven idling risks\u003c\/li\u003e\n  \u003cli\u003eEffective suppression to protect sensitive electronics and sensors\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eWho is this for? The NGK RC-FX101 (55004) wire set is intended for vehicle owners, professional mechanics and DIY enthusiasts who need a direct-fit, OEM-quality ignition wire set for compatible 4-cylinder applications. It suits anyone replacing old, cracked, or high-resistance leads who wants durable materials, clear installation markings and reliable suppression of electrical noise. If you require full OEM coverage or have a late-model import or domestic engine that specifies NGK wire sets, the RC-FX101 offers a durable, performance-focused replacement option.\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 wires compatible with my vehicle?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Check the NGK part cross-reference and your vehicle’s year\/engine code; RC-FX101 fits many 4-cylinder applications meeting OEM lengths and specs.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: How hot can these wires handle underhood?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: The NGK silicone outer jacket resists temperatures up to about 250°C (482°F) for reliable high-heat performance.\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/section\u003e","brand":"NGK","offers":[{"title":"Default Title","offer_id":55169136951639,"sku":"B001RLZ6FU","price":80.82,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1050\/1524\/7191\/files\/ngk-rc-fx101-front-packaging.jpg?v=1790419254","url":"https:\/\/britishgarage.co.uk\/products\/ngk-spark-plug-wire-set-rc-fx101-4-wire-silicone-magnetic-core-leads-low-resistance-and-emi-suppression","provider":"British Garage","version":"1.0","type":"link"}