{"product_id":"quicksilver-ignition-coil-for-mercruiser-v6-v8-8m0079202-thunderbolt-iv-v-direct-fit-oem-replacement","title":"Quicksilver Ignition Coil for MerCruiser V6\/V8 — 8M0079202 Thunderbolt IV\/V Direct-Fit OEM Replacement","description":"\u003cp\u003e\u003cb\u003eQuicksilver 8M0079202 is a direct-fit ignition coil built to meet Mercury Marine OEM specifications for select V6 and V8 MerCruiser sterndrive and inboard engines equipped with Thunderbolt IV and V ignition systems.\u003c\/b\u003e\u003c\/p\u003e\n\n\u003cp\u003eThis ignition coil is designed as a replacement part for MerCruiser-powered boats using the Thunderbolt IV or V ignition platforms. Manufactured under the Quicksilver brand, the unit is produced to align with factory tolerances and electrical requirements so it integrates with original wiring and mounting arrangements. Always confirm fitment against your engine service or parts manual before ordering to ensure compatibility with your specific model year and configuration.\u003c\/p\u003e\n\n\u003ch3\u003eWhich engines and ignition systems does this coil support?\u003c\/h3\u003e\n\u003cp\u003eThe 8M0079202 coil is specified for select General Motors–based MerCruiser V6 and V8 sterndrive and inboard engines that use Thunderbolt IV or Thunderbolt V ignition systems. It replaces coils designed for those exact ignition platforms and follows factory electrical specs for reliable operation.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eIntended for MerCruiser V6 and V8 engines built on GM platforms.\u003c\/li\u003e\n  \u003cli\u003eCompatible with Thunderbolt IV and Thunderbolt V ignition modules.\u003c\/li\u003e\n  \u003cli\u003eMatches Mercury Marine original equipment electrical characteristics.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eHow does this replacement coil affect engine performance and reliability?\u003c\/h3\u003e\n\u003cp\u003eAs a coil manufactured to OEM standards, it helps restore correct spark energy and timing characteristics expected by the engine management system. Replacing a worn or damaged coil can reduce misfires, restore smooth idle, and improve throttle response when the ignition is the root cause.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eProvides specified secondary voltage and dwell properties for Thunderbolt systems.\u003c\/li\u003e\n  \u003cli\u003eHelps eliminate intermittent spark faults from aging coils.\u003c\/li\u003e\n  \u003cli\u003eDesigned to fit and mount like the original component for straightforward replacement.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhat should I check before buying and installing this part?\u003c\/h3\u003e\n\u003cp\u003eConfirm the part number and cross-reference it with your engine’s parts list or service manual; many MerCruiser models use similar-looking coils but different internal specs. Inspect the ignition wiring, connectors, and mounting hardware for corrosion or damage before installation to ensure the new coil operates correctly.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eVerify 8M0079202 matches the part number in your service manual.\u003c\/li\u003e\n  \u003cli\u003eCheck wiring harness condition and connector pins for corrosion.\u003c\/li\u003e\n  \u003cli\u003eReplace mounting bolts and insulators if worn to secure proper grounding.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eIs this coil easy to install and maintain?\u003c\/h3\u003e\n\u003cp\u003eInstallation is typically straightforward for those familiar with marine engine ignition components: the coil mounts in the factory location and connects to the existing harness and spark leads. Routine maintenance is limited to visual inspection of connectors and ensuring a clean, dry mounting location free from oil and excessive heat.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eDirect-fit replacement with original mounting points and connector compatibility.\u003c\/li\u003e\n  \u003cli\u003eNo special tools beyond basic hand tools usually required.\u003c\/li\u003e\n  \u003cli\u003eMaintenance involves periodic connector checks and cleaning if necessary.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eWho this product is for: Marine owners, mechanics, and service shops that maintain MerCruiser sterndrive or inboard engines on GM platforms and require a factory-spec ignition coil for Thunderbolt IV or V systems. It's especially useful when ignition misfires or coil failure is suspected and a like-for-like OEM-quality replacement is preferred to preserve engine operation and diagnostics compatibility.\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 8M0079202 fit my MerCruiser V8 with Thunderbolt V?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: If your engine’s parts list or service manual lists 8M0079202 for Thunderbolt V systems, it’s a direct fit. Always verify with your specific model year and engine code.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: Can I replace this coil myself?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Yes, basic mechanical skill is sufficient for most installs. Ensure power is off, check connectors, and follow torque and grounding recommendations.\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/section\u003e","brand":"Quicksilver","offers":[{"title":"Default Title","offer_id":67585066533049,"sku":"B00N6DCOG6","price":248.65,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0822\/3765\/3177\/files\/quicksilver-coil-front-view.jpg?v=1790465887","url":"https:\/\/redleafauto.ca\/products\/quicksilver-ignition-coil-for-mercruiser-v6-v8-8m0079202-thunderbolt-iv-v-direct-fit-oem-replacement","provider":"Redleaf Auto","version":"1.0","type":"link"}