{"product_id":"mercury-distributor-cap-rotor-kit-815407t5","title":"Mercury Distributor Cap \u0026 Rotor Kit – 815407T5","description":"\u003cp data-start=\"87\" data-end=\"483\"\u003eMercury MerCruiser Quicksilver 815407T5 is a genuine OEM distributor cap and rotor kit for GM V6 MerCruiser engines using Thunderbolt IV and Thunderbolt V HEI ignition systems. Current Mercury parts sources and major OEM-focused retailers consistently identify this kit as the correct cap-and-rotor service set for this ignition family. \u003cspan class=\"\" data-state=\"closed\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp data-start=\"485\" data-end=\"499\"\u003eKey Features\u003c\/p\u003e\n\u003cul data-start=\"500\" data-end=\"889\"\u003e\n\u003cli data-start=\"500\" data-end=\"550\"\u003eGenuine Mercury MerCruiser Quicksilver OEM kit\u003c\/li\u003e\n\u003cli data-start=\"551\" data-end=\"584\"\u003eDistributor cap and rotor kit\u003c\/li\u003e\n\u003cli data-start=\"585\" data-end=\"631\"\u003eDesigned for GM V6 MerCruiser applications\u003c\/li\u003e\n\u003cli data-start=\"632\" data-end=\"693\"\u003eFor Thunderbolt IV and Thunderbolt V HEI ignition systems\u003c\/li\u003e\n\u003cli data-start=\"694\" data-end=\"785\"\u003eCommonly described with brass rotor \/ RFI-resistant ignition design in current listings\u003c\/li\u003e\n\u003cli data-start=\"786\" data-end=\"889\"\u003eService replacement for worn cap-and-rotor ignition components. \u003cspan class=\"\" data-state=\"closed\"\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp data-start=\"891\" data-end=\"1311\"\u003eEngine Compatibility\u003cbr data-start=\"911\" data-end=\"914\"\u003eCommon current listings describe 815407T5 for GM V6 MerCruiser engines with Thunderbolt IV and V HEI ignition. Several sources specifically tie it to 4.3L V6 MerCruiser applications, including 1985-up references in aftermarket fitment listings. Fitment should still be confirmed by engine model, serial number, and installed distributor setup before ordering. \u003cspan class=\"\" data-state=\"closed\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp data-start=\"1313\" data-end=\"1614\"\u003eSerial Number Fitment Notice\u003cbr data-start=\"1341\" data-end=\"1344\"\u003eFitment should be confirmed by MerCruiser engine serial number and ignition configuration, not by engine family alone. The safest match is by OEM part number 815407T5 and the installed Thunderbolt IV \/ V HEI distributor application. \u003cspan class=\"\" data-state=\"closed\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp data-start=\"1616\" data-end=\"1924\"\u003eWhen This Part Needs Replacement\u003cbr data-start=\"1648\" data-end=\"1651\"\u003eReplace when the distributor cap shows carbon tracking, terminal corrosion, cracking, or moisture intrusion, or when the rotor shows burning, wear, looseness, or inconsistent spark transfer. Cap-and-rotor wear can lead to hard starting, rough running, and ignition misfire.\u003c\/p\u003e\n\u003cp data-start=\"1926\" data-end=\"2312\"\u003eInstallation Notes\u003cbr data-start=\"1944\" data-end=\"1947\"\u003eInstall only on the correct GM V6 Thunderbolt IV \/ V HEI distributor application. Confirm the replacement matches the removed cap and rotor before installation. Several current replacement listings also note overlap with older Mercury number 815407Q5, but distributor and engine match should still be confirmed before ordering. \u003cspan class=\"\" data-state=\"closed\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp data-start=\"2314\" data-end=\"2351\"\u003eAlternate \/ Superseded Part Numbers\u003c\/p\u003e\n\u003cul data-start=\"2352\" data-end=\"2498\"\u003e\n\u003cli data-start=\"2352\" data-end=\"2364\"\u003e815407T5\u003c\/li\u003e\n\u003cli data-start=\"2365\" data-end=\"2377\"\u003e815407Q5\u003c\/li\u003e\n\u003cli data-start=\"2378\" data-end=\"2389\"\u003e13753A2\u003c\/li\u003e\n\u003cli data-start=\"2390\" data-end=\"2402\"\u003e815407A2\u003c\/li\u003e\n\u003cli data-start=\"2403\" data-end=\"2414\"\u003e11108A3\u003c\/li\u003e\n\u003cli data-start=\"2415\" data-end=\"2428\"\u003e815407Q02\u003c\/li\u003e\n\u003cli data-start=\"2429\" data-end=\"2447\"\u003eSierra 18-5274\u003c\/li\u003e\n\u003cli data-start=\"2448\" data-end=\"2498\"\u003eGLM 71790. \u003cspan class=\"\" data-state=\"closed\"\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp data-start=\"2500\" data-end=\"2798\"\u003eParts Desk Insight\u003cbr data-start=\"2518\" data-end=\"2521\"\u003eThe key match point on 815407T5 is the ignition family. This kit is consistently tied to the GM V6 Thunderbolt IV \/ V HEI setup, which helps separate it from Delco EST and V8 cap-and-rotor kits that can look similar but do not interchange. \u003cspan class=\"\" data-state=\"closed\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp data-start=\"2800\" data-end=\"2855\"\u003eShips same or next day for fast Canada wide shipping. ⚓\u003c\/p\u003e","brand":"MERC","offers":[{"title":"Default Title","offer_id":43563881005092,"sku":"815407T5","price":84.83,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0743\/5799\/7604\/files\/4df96330-7020-484b-8df2-ca5af3fc01f5.png?v=1775528474","url":"https:\/\/marisolmarine.com\/products\/mercury-distributor-cap-rotor-kit-815407t5","provider":"Marisol Marine Company","version":"1.0","type":"link"}