{"product_id":"autoexact-ignition-coils-iridium-spark-plugs-wires-kit-8-pack-uf413-square-coils-pre-gapped-direct-replacement","title":"autoexact Ignition Coils, Iridium Spark Plugs \u0026 Wires Kit — 8-Pack UF413 Square Coils, Pre-Gapped Direct Replacement","description":"\u003cp\u003e\u003cstrong\u003eComplete 8-pack ignition kit with square UF413 coils, pre-gapped iridium spark plugs and plug wires built as a direct replacement for select Chevy, GMC, Cadillac and related 4.8L–6.2L engines.\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cp\u003eThis all-in-one ignition replacement bundle from autoexact combines eight epoxy-sealed ignition coils, eight fine-wire iridium spark plugs and eight spark plug wires plus a wire clip to simplify a full tune-up. Designed to match factory dimensions and electrical specs, the kit targets common ignition wear items so you can replace all related parts in one visit. Read fitment notes carefully — this package uses the SQUARE UF413 coil style, not the ROUND UF414 — and verify your original coil shape before ordering.\u003c\/p\u003e\n\n\u003ch3\u003eWill these coils and plugs fit my Chevy or GMC?\u003c\/h3\u003e\n\u003cp\u003eCompatibility is targeted to specific GM V8 and V6 engines in model years listed; the product replaces coils and plugs used across many 4.8L, 5.3L, 6.0L and 6.2L applications. Use your vehicle’s year, model and engine displacement to confirm fit, and check that your existing coils are the square UF413 design. If you’re uncertain, provide your VIN to seller support for verification.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eIncludes 8 square UF413 coils — verify coil shape matches your vehicle.\u003c\/li\u003e\n  \u003cli\u003eFits many Silverado, Sierra, Tahoe, Suburban, Yukon, Avalanche, Express and similar models as listed.\u003c\/li\u003e\n  \u003cli\u003eCompatible with 14mm threaded, tapered-seat spark plug specifications and preset 1.3mm gap.\u003c\/li\u003e\n  \u003cli\u003eSeller offers VIN-based fitment help to avoid ordering mistakes.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eHow does this kit help with ignition-related drivability issues?\u003c\/h3\u003e\n\u003cp\u003eWhen coils, spark plugs or plug wires wear, you may see symptoms like misfires, rough idle, poor acceleration or a check-engine light. Replacing coils and plugs together reduces the chance of repeating repairs and can restore consistent spark delivery when ignition component wear is the root cause. The kit is engineered to meet factory electrical output and insulation expectations for reliable day-to-day performance.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eEpoxy-potted coils resist moisture, heat and internal arcing for steady spark output.\u003c\/li\u003e\n  \u003cli\u003eFine-wire iridium plugs are pre-gapped to help stable ignition and combustion.\u003c\/li\u003e\n  \u003cli\u003eDurable rubber boots and spring contacts secure connections under vibration.\u003c\/li\u003e\n  \u003cli\u003eDesigned to address common trouble codes related to misfires (e.g., P0300–P0308).\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhat should I know about installation and technical specs?\u003c\/h3\u003e\n\u003cp\u003eThe kit is built for a straightforward, direct-replacement installation using basic hand tools and a torque wrench. Plugs come pre-gapped and the recommended installation torque is 11.06 ft·lb (15 N·m). Coils are factory-tested for high-voltage output to help ensure insulation strength and proper function before shipping.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eComplete kit: 8 coils, 8 iridium plugs, 8 plug wires and 1 wire clip for a single-vehicle tune-up.\u003c\/li\u003e\n  \u003cli\u003ePlugs are preset and interchangeable across specified heat ranges (heat range 5 or 6 equivalents).\u003c\/li\u003e\n  \u003cli\u003eEach coil tested at approximately 35±2 kV secondary output during quality checks.\u003c\/li\u003e\n  \u003cli\u003eFactory-applied dielectric grease and pre-lubrication streamline installation.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhat warranty and support are included if something goes wrong?\u003c\/h3\u003e\n\u003cp\u003eautoexact backs this ignition set with a two-year warranty plus lifetime technical assistance to help diagnose fit or installation questions. If you run into compatibility uncertainty, sending your VIN or vehicle details to customer support helps ensure you get the correct coil style and parts for your vehicle.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003e2-year warranty coverage on the ignition kit.\u003c\/li\u003e\n  \u003cli\u003eLifetime technical support by email for fitment and installation help.\u003c\/li\u003e\n  \u003cli\u003eQuality-checked components before shipment to reduce returns.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eWho this is for: This kit is intended for owners or professional mechanics replacing worn ignition components on compatible Chevy, GMC, Cadillac, Pontiac, Hummer and other listed GM-platform vehicles with 4.8L–6.2L engines who want a full, single-source replacement. Choose this set if you prefer to swap coils, plugs and wires together to minimize future troubleshooting — but confirm that your vehicle uses the square UF413 coil type before ordering.\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: Does this kit include coils and wires for all eight cylinders?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Yes — the package contains 8 ignition coils, 8 iridium spark plugs and 8 spark plug wires plus one wire clip for a full eight-cylinder replacement.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: How do I confirm the coil type before buying?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Check your vehicle’s existing coil shape: this kit uses the square UF413 style. If unsure, provide your VIN to seller support for verification.\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/section\u003e","brand":"autoexact","offers":[{"title":"Default Title","offer_id":48080610918558,"sku":"B0FN484KL5","price":214.97,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0781\/2041\/9486\/files\/autoexact-front-packaging-kit.jpg?v=1785782971","url":"https:\/\/northtrailauto.ca\/products\/autoexact-ignition-coils-iridium-spark-plugs-wires-kit-8-pack-uf413-square-coils-pre-gapped-direct-replacement","provider":"North Trail Auto","version":"1.0","type":"link"}