{"product_id":"ngk-spark-plug-wire-set-rc-he82-8041-4-wire-7mm-magnetic-core-with-high-temp-silicone-jacket","title":"NGK Spark Plug Wire Set RC-HE82 (8041) — 4-Wire 7mm Magnetic-Core with High-Temp Silicone Jacket","description":"\u003cstrong\u003eNGK RC-HE82 (8041) Spark Plug Wire Set is a 4-wire, 7mm ultra-low resistance ignition cable kit engineered for reliable spark delivery, EMI\/RFI suppression, and factory-level fit and durability.\u003c\/strong\u003e\n\n\u003cp\u003eThis NGK wire set replaces worn or underperforming ignition leads with a premium, wire-wound magnetic-core design built to meet or exceed OEM specifications. Constructed with a high-density fiberglass braid over EPDM\/silicone inner insulation and a silicone outer jacket rated to 482°F (250°C), the set combines temperature resistance, mechanical strength, and consistent electrical performance for a broad range of domestic and import engines.\u003c\/p\u003e\n\n\u003ch3\u003eHow does this wire set improve ignition performance?\u003c\/h3\u003e\n\u003cp\u003eThe RC-HE82 uses variable-pitch wire winding around a magnetic core to reduce electrical interference while maintaining the correct resistance profile for clean, powerful sparks. That construction minimizes stray radio-frequency energy and ensures consistent spark timing and intensity under different engine loads.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003e7mm wire-wound magnetic core for controlled low resistance and strong spark transfer\u003c\/li\u003e\n  \u003cli\u003eVariable-pitch winding breaks up electrical noise across a wide frequency range\u003c\/li\u003e\n  \u003cli\u003ePremium dielectric materials preserve spark energy and prevent misfires\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eAre these wires durable for hot engine bays and harsh conditions?\u003c\/h3\u003e\n\u003cp\u003eYes. NGK covers the inner insulation with high-density fiberglass braiding and a high-temperature silicone outer jacket that resists cracking, oil, and fuel exposure. Corrosion-resistant stainless steel terminals and robust mechanical fittings maintain connection integrity against vibration and thermal cycling.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eSilicone jacket rated to 482°F (250°C) resists heat-related degradation\u003c\/li\u003e\n  \u003cli\u003eFiberglass reinforcement adds tensile strength and dielectric stability\u003c\/li\u003e\n  \u003cli\u003eStainless steel positive-lock terminals reduce corrosion and separation risk\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eHow easy is installation and correct routing?\u003c\/h3\u003e\n\u003cp\u003eNGK wires are numbered for quick cylinder identification, and coil leads are color-coded so you can match connections without guesswork. The terminals are engineered for a secure, positive lock to prevent loose connections, making installation straightforward for DIYers and technicians alike.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eNumbered wires simplify cylinder sequencing and reduce installation errors\u003c\/li\u003e\n  \u003cli\u003eColor-coded coil wires speed up correct placement\u003c\/li\u003e\n  \u003cli\u003ePositive-lock terminals ensure tight, vibration-resistant fits\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhat noise suppression and compatibility features should I expect?\u003c\/h3\u003e\n\u003cp\u003eThe combination of magnetic core and variable pitch winding provides broad-spectrum EMI\/RFI suppression, protecting radio, sensor, and onboard electronics from ignition noise. NGK designs its wire sets to meet tight OEM tolerances so they fit and perform across many vehicle models.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eMagnetic core plus variable-pitch winding scrambles electrical waves to reduce interference\u003c\/li\u003e\n  \u003cli\u003eDesigned to OEM fitment standards for wide vehicle coverage\u003c\/li\u003e\n  \u003cli\u003eHelps maintain stable electronic sensor readings and in-cabin audio quality\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eWho is this for: The NGK RC-HE82 (8041) wire set is intended for vehicle owners, mechanics, or restoration professionals looking for OEM-grade ignition leads that balance performance, longevity, and noise suppression. It’s a suitable upgrade or replacement for engines requiring a 4-wire set with 7mm wire construction, especially where consistent spark energy, heat resistance, and reliable terminal connections are priorities.\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: Will this wire set fit my vehicle?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: The RC-HE82 is made to meet OEM tolerances for many vehicles; check compatibility with your year, make, and model before purchase.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: How hot can these wires withstand under the hood?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: The silicone outer jacket resists temperatures up to 482°F (250°C), plus oil and fuel exposure.\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/section\u003e","brand":"NGK","offers":[{"title":"Default Title","offer_id":55171399811415,"sku":"B000IY6UN4","price":70.17,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1050\/1524\/7191\/files\/ngk-rc-he82-front-packaging.jpg?v=1790444160","url":"https:\/\/britishgarage.co.uk\/products\/ngk-spark-plug-wire-set-rc-he82-8041-4-wire-7mm-magnetic-core-with-high-temp-silicone-jacket","provider":"British Garage","version":"1.0","type":"link"}