{"product_id":"rps-thunderbolt-distributor-cap-rotor-kit-for-mercruiser-v8-engines-805759q3-805759t3","title":"RPS Thunderbolt Distributor Cap \u0026 Rotor Kit for Mercruiser V8 Engines (805759Q3 \/ 805759T3)","description":"\u003ch2\u003eRefresh the ignition heart of your Mercruiser V8\u003c\/h2\u003e\n\u003cp\u003eThe RPS Thunderbolt Distributor Cap and Rotor Kit is designed for Mercruiser V8 engines that rely on Thunderbolt I and IV systems. This complete upgrade pairs a cap with brass terminals, a precision rotor, a gasket, and installation screws into one durable, value‑driven package. Instead of a full OEM replacement, you get OEM‑quality components at a price that makes maintenance more accessible, helping you keep your marine setup in steady, reliable condition.\u003c\/p\u003e\n\n\u003ch3\u003eIncluded in the kit\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003eCap with brass terminals\u003c\/li\u003e\n  \u003cli\u003eRotor\u003c\/li\u003e\n  \u003cli\u003eGasket\u003c\/li\u003e\n  \u003cli\u003eScrews\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eKey compatibility and fit\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003eReplaces Part#: 805759Q3, 805759T3, 18-5935\u003c\/li\u003e\n  \u003cli\u003eFits all GM-based engines with Thunderbolt ignition systems from the early 1980s and newer\u003c\/li\u003e\n  \u003cli\u003eOpt for a straightforward upgrade that aligns with classic and later Thunderbolt configurations\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhy this kit stands out\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003eOEM-quality build without the OEM price tag\u003c\/li\u003e\n  \u003cli\u003eCap features brass terminals for durable, reliable conductivity\u003c\/li\u003e\n  \u003cli\u003eAll essential components included for a complete replacement\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eReal‑world use scenarios\u003c\/h3\u003e\n\u003cp\u003eWhether you’re performing routine maintenance, reviving an aging ignition setup, or gearing up for a new boating season, this kit offers a cohesive upgrade path. The gasket helps shield against moisture in damp engine bays, while the robust cap and rotor support consistent spark delivery under typical marine loads. The included screws ensure a secure, precise fit during installation.\u003c\/p\u003e\n\n\u003ch3\u003ePractical notes\u003c\/h3\u003e\n\u003cp\u003eThink of this kit as a practical maintenance option for Thunderbolt I and IV systems. It’s designed to be a clean, straightforward swap that aligns with your Mercruiser V8, helps preserve ignition reliability, and provides a reliable baseline for ongoing service life.\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: What engines is this kit compatible with?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Fits Mercruiser V8 engines using Thunderbolt I and IV systems, including 805759Q3, 805759T3, and 18-5935.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: What’s included in the kit?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Cap with brass terminals, rotor, gasket, and screws—delivered as a complete upgrade.\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/section\u003e","brand":"RPS","offers":[{"title":"Default Title","offer_id":42468385554517,"sku":"B07PYD8QJX","price":40.92,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0632\/3270\/4597\/files\/rps-thunderbolt-cap-assembly.jpg?v=1778071700","url":"https:\/\/plentytorque.co.uk\/products\/rps-thunderbolt-distributor-cap-rotor-kit-for-mercruiser-v8-engines-805759q3-805759t3","provider":"PlentyTorque","version":"1.0","type":"link"}