{"product_id":"rps-ignition-coil-for-mercruiser-volvo-penta-3-0-8-2l-12v-delco-est-hei-corrosion-resistant","title":"RPS Ignition Coil for MerCruiser \u0026 Volvo Penta 3.0-8.2L — 12V Delco EST\/HEI, Corrosion-Resistant","description":"\u003cp\u003e\u003cstrong\u003eRPS Ignition Coil delivers high-voltage spark performance for GM-based marine engines, replacing common Mercury and Volvo Penta part numbers for dependable ignition.\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cp\u003eDesigned for a wide range of inboard and sterndrive engines, this 12V coil is built to fit GM-derived marine powerplants including MerCruiser, Volvo Penta, OMC and Crusader models. It’s engineered as a direct substitute for several OEM and aftermarket references, and tailored for ignition systems using Delco EST or HEI-type electronic timing. Heavy-gauge windings and corrosion-resistant materials help it tolerate the humid, salty environment found in marine applications.\u003c\/p\u003e\n\n\u003ch3\u003eWhich engines and part numbers does this coil work with?\u003c\/h3\u003e\n\u003cp\u003eThis RPS coil is compatible with many GM-based marine blocks and replaces multiple factory references so you can cross-check your old unit. It supports 3.0L through 8.2L applications commonly found in MerCruiser, Volvo Penta and related marques.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eFits 3.0L, 4.3L, 5.0L, 5.7L, 7.4L, 8.1L and 8.2L marine engines.\u003c\/li\u003e\n  \u003cli\u003eCross-references: Mercury 817378T and 898253T27.\u003c\/li\u003e\n  \u003cli\u003eAlso replaces Volvo Penta 3854002 and 3854002-7, Sierra 18-5443, Delco EST-compatible units.\u003c\/li\u003e\n  \u003cli\u003eSuitable for OMC\/Crusader replacements where the mounting and terminals match.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eHow does the RPS coil perform in marine environments?\u003c\/h3\u003e\n\u003cp\u003eMaterials and construction are selected to resist corrosion and maintain consistent output despite moisture and vibration. The coil uses robust internal windings and a durable housing to provide stable high-voltage pulses under load.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eHeavy-duty windings designed for long service life in saltwater conditions.\u003c\/li\u003e\n  \u003cli\u003eBrass terminal minimizes oxidation at key electrical contact points.\u003c\/li\u003e\n  \u003cli\u003eSturdy bracket mounting reduces movement and helps sustain connections.\u003c\/li\u003e\n  \u003cli\u003eMeets or exceeds many original specifications for output and durability.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWill this coil fit my Delco EST or HEI ignition system?\u003c\/h3\u003e\n\u003cp\u003eThis unit is intended for Delco EST and HEI-style electronic timing systems and connects using the standard 12V coil terminals. Confirm terminal layout and mounting hole spacing against your old coil for a direct fit.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eDesigned for Delco EST\/HEI ignition configurations.\u003c\/li\u003e\n  \u003cli\u003eStandard 12V electrical connections and bracket holes for straightforward replacement.\u003c\/li\u003e\n  \u003cli\u003eCompatible with common harnesses used on GM-based marine engines.\u003c\/li\u003e\n  \u003cli\u003eCheck original part cross-references listed above to verify compatibility.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eHow easy is installation and what should I check before fitting?\u003c\/h3\u003e\n\u003cp\u003eInstallation is a simple swap when bracket spacing and terminal layout match your engine’s original coil. Always disconnect the battery, note wire locations, and inspect connectors for corrosion before mounting the new coil.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eStandard mounting holes allow bolt-on replacement in most applications.\u003c\/li\u003e\n  \u003cli\u003eIncludes brass terminal for secure spark wire connection.\u003c\/li\u003e\n  \u003cli\u003eVerify compatibility with your engine’s ignition harness and Delco EST\/HEI system first.\u003c\/li\u003e\n  \u003cli\u003eReconnect battery only after double-checking all wiring and fasteners.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eWho is this for: Boaters, mechanics and marine technicians looking for a reliable, OEM-style replacement coil for GM-based marine engines will find the RPS Ignition Coil a practical choice. It’s aimed at anyone maintaining MerCruiser, Volvo Penta, OMC or Crusader powerplants who needs a durable coil that cross-references common Mercury and Volvo part numbers and is built to withstand marine conditions.\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: Does this coil work with Delco EST systems?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Yes. The RPS coil is designed for Delco EST and HEI-style ignition systems; verify terminal layout before installation.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: Which OEM part numbers does it replace?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: It replaces Mercury 817378T, 898253T27, Volvo Penta 3854002\/3854002-7 and Sierra 18-5443 among others.\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/section\u003e","brand":"RPS","offers":[{"title":"Default Title","offer_id":48083180028062,"sku":"B0859MLQ77","price":52.97,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0781\/2041\/9486\/files\/rps-ignition-coil-front.jpg?v=1785827926","url":"https:\/\/northtrailauto.ca\/products\/rps-ignition-coil-for-mercruiser-volvo-penta-3-0-8-2l-12v-delco-est-hei-corrosion-resistant","provider":"North Trail Auto","version":"1.0","type":"link"}