{"product_id":"tune-up-kit-mercruiser-7-4l-8-2l-delco-est-powerline-m74delco","title":"Tune Up Kit Mercruiser 7.4L \u0026 8.2L Delco EST | Powerline M74DELCO","description":"\u003ch2\u003eTune Up Kit Mercruiser 7.4L \u0026amp; 8.2L Delco EST | Powerline M74DELCO\u003c\/h2\u003e\n\u003cp\u003eTune Up Kit Mercruiser 7.4L \u0026amp; 8.2L Delco EST | Powerline M74DELCO\u003c\/p\u003e\n\u003cp\u003e\u003cbr\u003eComplete engine maintenance solution engineered for pre-Vortec 7.4L powerplants equipped with Delco Electronic ignition. This comprehensive tune-up kit delivers the precision components your Mercruiser needs to restore peak performance, reliable starting, and smooth operation. Keep your marine engine running at its best with factory-matched parts designed specifically for your ignition system.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eV8 7.4 Liter Delco Tune Up Kit\u003c\/li\u003e\n\u003cli\u003eFor Mercruiser 7.4 liter 454 cu. in. engines with Delco ignition systems\u003c\/li\u003e\n\u003cli\u003eEverything needed for a tune up in one convenient kit\u003c\/li\u003e\n\u003cli\u003eKit includes 8 NGK BR6FS spark plugs, plug wires, distributor cap, rotor, 18-7844 fuel filter, 18-7824 oil filter and 8 oz. StarTron gasoline additive\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch5\u003eAdditional Information\u003c\/h5\u003e\n\u003ch4 data-path-to-node=\"5\"\u003e\u003cstrong data-path-to-node=\"5\" data-index-in-node=\"0\"\u003eExpert Maintenance for Mercruiser 7.4L and 8.2L Engines\u003c\/strong\u003e\u003c\/h4\u003e\n\u003cp data-path-to-node=\"6\"\u003e\u003cspan class=\"citation-315 citation-end-315\"\u003eKeeping a high-displacement marine engine in peak condition requires specialized components.\u003c\/span\u003e Therefore, the \u003cstrong data-path-to-node=\"6\" data-index-in-node=\"108\"\u003eTune Up Kit Mercruiser 7.4L \u0026amp; 8.2L Delco EST\u003c\/strong\u003e is the professional choice for seasonal maintenance. \u003cspan class=\"citation-314\"\u003eThis kit, known as the \u003c\/span\u003e\u003cstrong data-path-to-node=\"6\" data-index-in-node=\"229\"\u003e\u003cspan class=\"citation-314\"\u003ePowerline M74DELCO\u003c\/span\u003e\u003c\/strong\u003e\u003cspan class=\"citation-314 citation-end-314\"\u003e, targets the specific needs of big-block V8 powerplants.\u003c\/span\u003e Because these engines often power larger vessels, reliability is absolutely paramount. Consequently, this comprehensive kit ensures your ignition and filtration systems remain factory-fresh.\u003c\/p\u003e\n\u003ch4 data-path-to-node=\"7\"\u003e\u003cstrong data-path-to-node=\"7\" data-index-in-node=\"0\"\u003eWhy Choose the Powerline M74DELCO Service Kit?\u003c\/strong\u003e\u003c\/h4\u003e\n\u003cp data-path-to-node=\"8\"\u003e\u003cspan class=\"citation-313\"\u003eFirst of all, this kit is specifically tailored for engines with the \u003c\/span\u003e\u003cstrong data-path-to-node=\"8\" data-index-in-node=\"69\"\u003e\u003cspan class=\"citation-313\"\u003eDelco EST (Electronic Spark Timing)\u003c\/span\u003e\u003c\/strong\u003e\u003cspan class=\"citation-313 citation-end-313\"\u003e system.\u003c\/span\u003e \u003cspan class=\"citation-312 citation-end-312\"\u003eIn addition, it is designed for the high-output 7.4L (454) and 8.2L (502) multiport EFI models.\u003c\/span\u003e Since these engines operate under heavy loads, they demand consistent spark delivery. \u003cspan class=\"citation-311 citation-end-311\"\u003eMoreover, the kit includes high-quality NGK spark plugs and premium 8mm wires.\u003c\/span\u003e As a result, you will notice immediate improvements in cold-start reliability and throttle response.\u003c\/p\u003e\n\u003ch4 data-path-to-node=\"9\"\u003e\u003cstrong data-path-to-node=\"9\" data-index-in-node=\"0\"\u003eComprehensive Ignition and Filtration Components\u003c\/strong\u003e\u003c\/h4\u003e\n\u003cp data-path-to-node=\"10\"\u003e\u003cspan class=\"citation-310 citation-end-310\"\u003eThis package is more than just an ignition set; it is a total maintenance solution.\u003c\/span\u003e Specifically, it includes a heavy-duty distributor cap and rotor with brass terminals. \u003cspan class=\"citation-309 citation-end-309\"\u003eAdditionally, you receive an 18-7824 oil filter and an 18-7844 fuel filter for complete engine protection.\u003c\/span\u003e \u003cspan class=\"citation-308\"\u003eFurthermore, the inclusion of \u003c\/span\u003e\u003cstrong data-path-to-node=\"10\" data-index-in-node=\"308\"\u003e\u003cspan class=\"citation-308\"\u003eStarTron gasoline additive\u003c\/span\u003e\u003c\/strong\u003e\u003cspan class=\"citation-308 citation-end-308\"\u003e helps stabilize fuel against ethanol-related issues.\u003c\/span\u003e Thus, you can handle your entire annual service with a single, convenient part number.\u003c\/p\u003e\n\u003ch4 data-path-to-node=\"11\"\u003e\u003cstrong data-path-to-node=\"11\" data-index-in-node=\"0\"\u003eSigns Your Big Block Engine Needs a Tune-Up\u003c\/strong\u003e\u003c\/h4\u003e\n\u003cp data-path-to-node=\"12\"\u003e\u003cspan class=\"citation-307 citation-end-307\"\u003eOver time, moisture and heat degrade even the best marine components.\u003c\/span\u003e For instance, you might notice your engine \"hunting\" for a steady idle or losing top-end speed. Likewise, increased fuel consumption is a classic sign of worn spark plugs or a clogged filter. Fortunately, installing the \u003cstrong data-path-to-node=\"12\" data-index-in-node=\"290\"\u003ePowerline M74DELCO\u003c\/strong\u003e kit can resolve these common performance hurdles. Because it replaces both ignition and filtration parts, it addresses multiple potential failure points simultaneously.\u003c\/p\u003e\n\u003ch4 data-path-to-node=\"13\"\u003e\u003cstrong data-path-to-node=\"13\" data-index-in-node=\"0\"\u003eProfessional Installation for Maximum Longevity\u003c\/strong\u003e\u003c\/h4\u003e\n\u003cp data-path-to-node=\"14\"\u003eInstalling this kit is a straightforward process for most experienced boaters. However, it is essential to ensure your engine serial number matches the Delco EST configuration. Since this kit is designed for pre-Vortec and certain EFI models, verification is key. Once installed, the new components work in harmony to reduce engine strain. Ultimately, this proactive care extends the lifespan of your Mercruiser and provides peace of mind on every voyage.\u003c\/p\u003e\n\u003chr data-path-to-node=\"15\"\u003e\n\u003ch5 data-path-to-node=\"16\"\u003e\u003cstrong data-path-to-node=\"16\" data-index-in-node=\"0\"\u003eFrequently Asked Questions\u003c\/strong\u003e\u003c\/h5\u003e\n\u003ch4 data-path-to-node=\"17\"\u003e\u003cstrong data-path-to-node=\"17\" data-index-in-node=\"0\"\u003eDoes this kit fit the Mercruiser 7.4L L29 MPI engine?\u003c\/strong\u003e\u003c\/h4\u003e\n\u003cp data-path-to-node=\"18\"\u003e\u003cspan class=\"citation-306 citation-end-306\"\u003eYes, this kit is highly compatible with the L29 GM multiport EFI engines using the Delco EST system.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch4 data-path-to-node=\"19\"\u003e\u003cstrong data-path-to-node=\"19\" data-index-in-node=\"0\"\u003eWhy is StarTron fuel additive included in the kit?\u003c\/strong\u003e\u003c\/h4\u003e\n\u003cp data-path-to-node=\"20\"\u003eMarine fuel often sits for long periods, which can lead to phase separation. Consequently, this additive prevents gum and varnish buildup in your fuel system.\u003c\/p\u003e\n\u003ch4 data-path-to-node=\"21\"\u003e\u003cstrong data-path-to-node=\"21\" data-index-in-node=\"0\"\u003eWhat spark plugs come in the M74DELCO kit?\u003c\/strong\u003e\u003c\/h4\u003e\n\u003cp data-path-to-node=\"22\"\u003e\u003cspan class=\"citation-305 citation-end-305\"\u003eThe kit typically includes 8 high-performance NGK BR6FS spark plugs, which are the standard for these big-block applications.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch4 data-path-to-node=\"23\"\u003e\u003cstrong data-path-to-node=\"23\" data-index-in-node=\"0\"\u003eHow often should I replace my fuel and oil filters?\u003c\/strong\u003e\u003c\/h4\u003e\n\u003cp data-path-to-node=\"24\"\u003eFor maximum safety, you should replace these filters every 100 hours or once per season, whichever comes first.\u003c\/p\u003e","brand":"MMD Powerline","offers":[{"title":"Default Title","offer_id":38042806321347,"sku":"MMD-M74DELCO","price":176.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/2712\/8720\/files\/Tune-Up-Kit-Mercruiser-7_4L-8_2L-Delco-EST-Powerline-M74DELCO.jpg?v=1776950612","url":"https:\/\/www.macombmarineparts.com\/products\/tune-up-kit-mercruiser-7-4l-8-2l-delco-est-powerline-m74delco","provider":"MacombMarineParts.com","version":"1.0","type":"link"}