{"product_id":"mercury-dop-805759t3","title":"Mercury Dop 805759T3","description":"Mercury – Cap and Rotor Kit | For GM V8 MerCruiser Engines with Thunderbolt IV \u0026amp; V Systems | 805759T3  \n \n  Overview  \n A strong, reliable spark is the backbone of every good running engine. The  Mercury Marine 805759T3 Cap and Rotor Kit  restores smooth ignition performance to your  GM-based V8 MerCruiser  equipped with  Thunderbolt IV or V HEI ignition systems . Built with durable marine-grade materials, this kit is designed to handle the heat, vibration, and humidity that come with boating. With precision-molded components and corrosion-resistant brass contacts, it delivers consistent spark timing — helping your engine fire clean, idle smooth, and perform at its best. \n \n  Key Features  \n \n \n Purpose:  Replaces worn ignition components to restore smooth spark delivery. \n \n Design:  Includes a  distributor cap, rotor, and gasket  built to OEM standards. \n \n Construction:  Molded from a  PBT\/PET composite  for strength, stiffness, and heat resistance. \n \n Performance:   Coated brass rotor blade  ensures clean electrical contact and long service life. \n \n Protection:  Designed to minimize RFI interference with onboard electronics and sensors. \n \n \n  Engine \u0026amp; Boat Compatibility  \n \n \n GM-built V8 MerCruiser engines  using  Thunderbolt IV and Thunderbolt V HEI ignition systems \n \n \n \n  Performance \u0026amp; Real-World Benefits  \n The  805759T3 Cap and Rotor Kit  keeps your ignition system running like it should. Over time, corrosion, arcing, and heat can wear down the distributor components, leading to misfires, rough idle, or weak throttle response. Installing this Mercury OEM kit restores the spark timing and consistency your engine was built for. \n The high-strength housing stays rigid under marine heat, while the brass rotor and terminals provide excellent conductivity and resistance to corrosion. With fresh components, you’ll notice easier starts, smoother acceleration, and a steady idle — exactly what you want when you turn the key and head out on the water. \n \n  Why Choose Mercury OEM  \n The  Mercury 805759T3  is a  genuine Mercury Marine part , made to withstand the demanding conditions that aftermarket parts often can’t. While generic kits may fit, they often use inferior materials that warp or fail early, especially in marine environments. \n Mercury’s OEM ignition components are precision-tested to deliver the same spark quality and longevity as the originals installed in new MerCruiser engines. It’s the same kit trusted by factory technicians to keep engines running smooth, reliable, and strong. \n \n  FAQ  \n  Q1: What’s included in this kit?  It includes a  distributor cap, coated brass rotor blade, and gasket  — everything needed for a complete replacement. \n  Q2: What engines does it fit?  It’s made for  GM-built V8 MerCruiser engines  with  Thunderbolt IV or V HEI ignition systems . \n  Q3: Why replace the cap and rotor together?  Replacing both ensures consistent spark timing and strong, even ignition across all cylinders. \n  Q4: How long do these parts last?  They’re built from  marine-grade composites and brass , lasting several seasons under normal marine use. \n  Q5: Why OEM over aftermarket?  Because  Mercury OEM parts  are built for precise fit, lasting durability, and corrosion resistance — crucial for marine reliability.","brand":"Mercury","offers":[{"title":"Default Title","offer_id":54718359470421,"sku":"MERC805759T3","price":49.5,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1002\/0035\/0037\/files\/805759t3_04.jpg?v=1787349012","url":"https:\/\/bouwmeesterwatersport.nl\/products\/mercury-dop-805759t3","provider":"Bouwmeester Watersport","version":"1.0","type":"link"}