{"product_id":"sierra-ignition-rotor-ap-866-sie-18-5407","title":"Sierra Ignition Rotor AP-866 SIE-18-5407","description":"\u003cp data-start=\"62\" data-end=\"460\"\u003eSierra SIE-18-5407 is an ignition rotor identified as AP-866 for marine V8 applications using Prestolite distributors with clip-down distributor caps. Current listings consistently describe it as the Prestolite V8 clip-down style rotor used across selected MerCruiser, OMC, Chrysler, Crusader, Pleasurecraft, and Chris-Craft applications. \u003cspan class=\"\" data-state=\"closed\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp data-start=\"462\" data-end=\"476\"\u003eKey Features\u003c\/p\u003e\n\u003cul data-start=\"477\" data-end=\"761\"\u003e\n\u003cli data-start=\"477\" data-end=\"495\"\u003eIgnition rotor\u003c\/li\u003e\n\u003cli data-start=\"496\" data-end=\"527\"\u003eSierra part number: 18-5407\u003c\/li\u003e\n\u003cli data-start=\"528\" data-end=\"560\"\u003eAP-866 application reference\u003c\/li\u003e\n\u003cli data-start=\"561\" data-end=\"606\"\u003ePrestolite V8 clip-down distributor style\u003c\/li\u003e\n\u003cli data-start=\"607\" data-end=\"651\"\u003eUsed with Sierra distributor cap 18-5369\u003c\/li\u003e\n\u003cli data-start=\"652\" data-end=\"761\"\u003eMarine replacement tune-up component for selected V8 ignition systems \u003cspan class=\"\" data-state=\"closed\"\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp data-start=\"763\" data-end=\"1270\"\u003eEngine Compatibility\u003cbr data-start=\"783\" data-end=\"786\"\u003eCommon aftermarket references tie Sierra 18-5407 to V8 marine engines using Prestolite distributors with clip-down caps. Public cross-reference sources connect it to selected MerCruiser stern drive, OMC stern drive and inboard, Chrysler inboard, Crusader, Pleasurecraft, and some Chris-Craft applications. Because rotor fitment is distributor-specific, fitment should be confirmed by engine model, distributor type, and cap style before ordering. \u003cspan class=\"\" data-state=\"closed\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp data-start=\"1272\" data-end=\"1561\"\u003eSerial Number Fitment Notice\u003cbr data-start=\"1300\" data-end=\"1303\"\u003eFitment should be confirmed by engine model, serial number, and installed distributor type before ordering. The safest match is by the original rotor number and Prestolite clip-down cap setup, not by engine family alone. \u003cspan class=\"\" data-state=\"closed\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp data-start=\"1563\" data-end=\"1853\"\u003eWhen This Part Needs Replacement\u003cbr data-start=\"1595\" data-end=\"1598\"\u003eReplace when the rotor shows burning, carbon tracking, corrosion, cracking, looseness, or visible contact wear, or when ignition service reveals weak or inconsistent spark transfer. Rotor condition directly affects spark delivery and ignition reliability.\u003c\/p\u003e\n\u003cp data-start=\"1855\" data-end=\"2197\"\u003eInstallation Notes\u003cbr data-start=\"1873\" data-end=\"1876\"\u003eInstall only on the correct Prestolite V8 clip-down distributor application. Confirm the replacement matches the removed rotor exactly before installation, and inspect the distributor cap at the same time. Current sources consistently note this rotor is used with Sierra cap 18-5369. \u003cspan class=\"\" data-state=\"closed\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp data-start=\"2199\" data-end=\"2236\"\u003eAlternate \/ Superseded Part Numbers\u003c\/p\u003e\n\u003cul data-start=\"2237\" data-end=\"2501\"\u003e\n\u003cli data-start=\"2237\" data-end=\"2247\"\u003eAP-866\u003c\/li\u003e\n\u003cli data-start=\"2248\" data-end=\"2259\"\u003e18-5407\u003c\/li\u003e\n\u003cli data-start=\"2260\" data-end=\"2283\"\u003eMerCruiser 392-6326\u003c\/li\u003e\n\u003cli data-start=\"2284\" data-end=\"2308\"\u003eMerCruiser 392-6326T\u003c\/li\u003e\n\u003cli data-start=\"2309\" data-end=\"2333\"\u003eMerCruiser FI6900044\u003c\/li\u003e\n\u003cli data-start=\"2334\" data-end=\"2348\"\u003eOMC 980892\u003c\/li\u003e\n\u003cli data-start=\"2349\" data-end=\"2369\"\u003eChrysler 1658535\u003c\/li\u003e\n\u003cli data-start=\"2370\" data-end=\"2388\"\u003eCrusader 41059\u003c\/li\u003e\n\u003cli data-start=\"2389\" data-end=\"2414\"\u003ePleasurecraft R103003\u003c\/li\u003e\n\u003cli data-start=\"2415\" data-end=\"2434\"\u003eMallory 9-29201\u003c\/li\u003e\n\u003cli data-start=\"2435\" data-end=\"2448\"\u003eGLM 71050\u003c\/li\u003e\n\u003cli data-start=\"2449\" data-end=\"2501\"\u003eCDI E65-0011 \u003cspan class=\"\" data-state=\"closed\"\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp data-start=\"2503\" data-end=\"2857\"\u003eParts Desk Insight\u003cbr data-start=\"2521\" data-end=\"2524\"\u003eThe key match point on SIE-18-5407 is the distributor style. This rotor is consistently described as the Prestolite V8 clip-down version, so confirming that the engine uses the clip-retained cap and 18-5369 cap family is the quickest way to avoid mixing it up with similar-looking marine rotors. \u003cspan class=\"\" data-state=\"closed\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp data-start=\"2859\" data-end=\"2924\"\u003eShipping: Ships same or next day for fast Canada wide shipping. ⚓\u003c\/p\u003e","brand":"WEST","offers":[{"title":"Default Title","offer_id":43564263702564,"sku":"SIE-18-5407","price":22.95,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0743\/5799\/7604\/files\/rra-18-5407_ny_xl.jpg?v=1775523397","url":"https:\/\/marisolmarine.com\/products\/sierra-ignition-rotor-ap-866-sie-18-5407","provider":"Marisol Marine Company","version":"1.0","type":"link"}