{"product_id":"acdelco-professional-spark-plug-wire-set-9748hh-8-count-high-temp-silicone-reinforced-fiberglass","title":"ACDelco Professional spark plug wire set 9748HH — 8‑count, high‑temp silicone \u0026 reinforced fiberglass","description":"\u003cp\u003e\u003cstrong\u003eThe ACDelco Professional 9748HH is an eight-piece spark plug wire set engineered with high-temperature silicone insulators and reinforced fiberglass cores to restore reliable ignition performance.\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cp\u003eIf your engine is misfiring, running rough, or experiencing reduced fuel efficiency, worn ignition wires are a common cause. ACDelco’s Professional line delivers an aftermarket wire set designed to match factory fit and function for a wide range of domestic and import vehicles, providing consistent spark delivery and long-term durability under heat and vibration.\u003c\/p\u003e\n\n\u003ch3\u003eHow does this wire set improve engine starting and throttle response?\u003c\/h3\u003e\n\u003cp\u003eThese wires are built to maintain strong, consistent electrical conductivity from the ignition coil to each spark plug, helping ensure full combustion on every cylinder. Better spark transmission reduces hesitation during start-up and improves throttle responsiveness under load.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eReinforced fiberglass conductors for stable signal transfer\u003c\/li\u003e\n  \u003cli\u003eHigh-dielectric silicone insulation to resist breakdown\u003c\/li\u003e\n  \u003cli\u003eOptimized length and diameter for minimal voltage loss\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhat materials and design features keep the wires durable in hot engine bays?\u003c\/h3\u003e\n\u003cp\u003eACDelco pairs heat- and abrasion-resistant silicone with strong internal reinforcement to withstand repeated thermal cycling and engine movement. Corrosion-resistant terminals and secure coil retainers help maintain electrical reliability over time.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eHigh-temperature silicone insulation resists cracking and hardening\u003c\/li\u003e\n  \u003cli\u003eCorrosion-resistant terminal design for long life\u003c\/li\u003e\n  \u003cli\u003eCoil retainers to prevent fretting and micro-arcing\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWill this set fit my vehicle and install like factory parts?\u003c\/h3\u003e\n\u003cp\u003eACDelco Professional spark plug wire sets are engineered to match original equipment fit, form, and function for broad vehicle coverage across domestic makes and many imports. The boot shapes and materials are designed to seat properly on plugs and distributors, helping to create a secure, water-resistant seal.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eEngineered to OEM length and routing for straightforward installation\u003c\/li\u003e\n  \u003cli\u003eBoot shapes designed for proper plug and distributor fitment\u003c\/li\u003e\n  \u003cli\u003ePackaged as an 8-count set for V6\/V8 and other eight-cylinder applications\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eHow do these wires help with maintenance and service life?\u003c\/h3\u003e\n\u003cp\u003eBy using robust insulators and protected terminals, the 9748HH set reduces the need for frequent replacement compared with older, deteriorated wires. Consistent spark delivery lowers the risk of misfires and helps maintain emissions and fuel economy between services.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eHigh dielectric materials reduce leakage and arcing\u003c\/li\u003e\n  \u003cli\u003eDurable construction extends service intervals\u003c\/li\u003e\n  \u003cli\u003eDesigned for easy installation during routine tune-ups\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eWho is this for: The ACDelco Professional 9748HH eight-wire set is intended for DIY mechanics and professional technicians replacing worn ignition wires on compatible eight-cylinder and certain V6 engines. It’s suitable for owners of domestic and many import vehicles who want an aftermarket solution that mirrors original equipment specifications, improves ignition reliability, and resists heat and corrosion in modern engine compartments.\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: Is this 8-count wire set compatible with V8 engines?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Yes — the 8-count ACDelco 9748HH set is sized for eight-cylinder applications and matches OEM routing for many V8 engines.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: Do these wires resist heat and oil exposure?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Yes — they use high-temperature silicone insulation and reinforced construction to withstand engine heat, oil splash, and vibration.\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/section\u003e","brand":"ACDelco","offers":[{"title":"Default Title","offer_id":48079808004254,"sku":"B000S2QVYE","price":82.67,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0781\/2041\/9486\/files\/acdelco-9748hh-front-packaging.jpg?v=1785771286","url":"https:\/\/northtrailauto.ca\/products\/acdelco-professional-spark-plug-wire-set-9748hh-8-count-high-temp-silicone-reinforced-fiberglass","provider":"North Trail Auto","version":"1.0","type":"link"}