{"product_id":"8m0045124-ignition-coil-for-mercury-30hp-40hp-efi-3cyl-jlm-marine","title":"8M0045124 Ignition Coil for Mercury 30HP 40HP EFI 3cyl | JLM Marine","description":"\u003ch2\u003eIgnition Coil for Mercury 30HP 40HP EFI 3cyl | JLM Marine\u003c\/h2\u003e\n\n\u003cp\u003eThis high-quality aftermarket ignition coil is engineered to fit \u003cstrong\u003eMercury 30HP and 40HP EFI 3-cylinder outboard engines\u003c\/strong\u003e. Designed to deliver reliable spark and consistent performance, this coil ensures your engine runs smoothly in all conditions.\u003c\/p\u003e\n\n\u003cp\u003eThis ignition coil directly replaces OEM part numbers \u003cstrong\u003e8M0045124\u003c\/strong\u003e and \u003cstrong\u003e8M0034012\u003c\/strong\u003e, providing a cost-effective solution without compromising on quality or durability.\u003c\/p\u003e\n\n\u003cul\u003e\n  \u003cli\u003eDirect replacement for Mercury Marine Mercruiser ignition coils\u003c\/li\u003e\n  \u003cli\u003eCompatible with EFI 3-cylinder outboard models\u003c\/li\u003e\n  \u003cli\u003eIncludes complete ignition coil assembly as shown\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003ePart Number Cross-Reference\u003c\/h2\u003e\n\n\u003cp\u003eUse this table to confirm equivalent part numbers across OEM and aftermarket brands.\u003c\/p\u003e\n\n\u003ctable border=\"1\" cellpadding=\"8\" cellspacing=\"0\"\u003e\n  \u003cthead\u003e\n    \u003ctr\u003e\n      \u003cth\u003eBrand\u003c\/th\u003e\n      \u003cth\u003ePart Number\u003c\/th\u003e\n    \u003c\/tr\u003e\n  \u003c\/thead\u003e\n  \u003ctbody\u003e\n    \u003ctr\u003e\n      \u003ctd\u003eMercury Marine\u003c\/td\u003e\n      \u003ctd\u003e8M0045124\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003eMercury Marine\u003c\/td\u003e\n      \u003ctd\u003e8M0034012\u003c\/td\u003e\n    \u003c\/tr\u003e\n  \u003c\/tbody\u003e\n\u003c\/table\u003e\n\n\u003ch2\u003eCompatible Engine Models\u003c\/h2\u003e\n\n\u003cp\u003eConfirm your engine model\/year in the table below. For Mercury owners, here's a guide to help you identify your engine's serial\/model: \u003ca href=\"https:\/\/jlmmarine.com\/blogs\/serial-number-guide\/mercury-outboard-serial-number-guide\" rel=\"nofollow noopener\" target=\"_blank\"\u003eMercury Serial Number Guide\u003c\/a\u003e. You can also review exploded diagrams to verify part numbers: \u003ca href=\"https:\/\/jlmmarine.com\/blogs\/diagrams\/mercury-parts-catalog\" rel=\"nofollow noopener\" target=\"_blank\"\u003eMercury Parts Diagrams \u0026amp; Catalog\u003c\/a\u003e.\u003c\/p\u003e\n\n\u003ctable border=\"1\" cellpadding=\"8\" cellspacing=\"0\"\u003e\n  \u003cthead\u003e\n    \u003ctr\u003e\n      \u003cth\u003eBrand\u003c\/th\u003e\n      \u003cth\u003eModel\u003c\/th\u003e\n      \u003cth\u003eRated HP\u003c\/th\u003e\n      \u003cth\u003eNotes\u003c\/th\u003e\n    \u003c\/tr\u003e\n  \u003c\/thead\u003e\n  \u003ctbody\u003e\n    \u003ctr\u003e\n      \u003ctd\u003eMercury Marine Mercruiser\u003c\/td\u003e\n      \u003ctd\u003e30 EFI\u003c\/td\u003e\n      \u003ctd\u003e30 HP\u003c\/td\u003e\n      \u003ctd\u003e3-cylinder\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003eMercury Marine Mercruiser\u003c\/td\u003e\n      \u003ctd\u003e40 EFI\u003c\/td\u003e\n      \u003ctd\u003e40 HP\u003c\/td\u003e\n      \u003ctd\u003e3-cylinder\u003c\/td\u003e\n    \u003c\/tr\u003e\n  \u003c\/tbody\u003e\n\u003c\/table\u003e\n\n\u003ch2\u003eTechnical Specifications\u003c\/h2\u003e\n\n\u003ctable border=\"1\" cellpadding=\"8\" cellspacing=\"0\"\u003e\n  \u003cthead\u003e\n    \u003ctr\u003e\n      \u003cth\u003eSpecification\u003c\/th\u003e\n      \u003cth\u003eValue\u003c\/th\u003e\n    \u003c\/tr\u003e\n  \u003c\/thead\u003e\n  \u003ctbody\u003e\n    \u003ctr\u003e\n      \u003ctd\u003ePart Type\u003c\/td\u003e\n      \u003ctd\u003eIgnition Coil\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003eOEM Part Number\u003c\/td\u003e\n      \u003ctd\u003e8M0045124, 8M0034012\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003eCompatible Brand\u003c\/td\u003e\n      \u003ctd\u003eMercury Marine Mercruiser\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003eEngine Configuration\u003c\/td\u003e\n      \u003ctd\u003e3-Cylinder EFI\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003eHorsepower Range\u003c\/td\u003e\n      \u003ctd\u003e30–40 HP\u003c\/td\u003e\n    \u003c\/tr\u003e\n  \u003c\/tbody\u003e\n\u003c\/table\u003e\n\n\u003ch2\u003ePackage Contents\u003c\/h2\u003e\n\n\u003cp\u003eThis package includes:\u003c\/p\u003e\n\n\u003cul\u003e\n  \u003cli\u003e\u003cstrong\u003e1 × Ignition Coil\u003c\/strong\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003e\u003cspan style=\"color:red;\"\u003e\u003cstrong\u003eNote:\u003c\/strong\u003e The package contains all the parts shown in the product images.\u003c\/span\u003e\u003c\/p\u003e\n\n\u003ch2\u003eInstallation Guide\u003c\/h2\u003e\n\n\u003col\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDisconnect the battery\u003c\/strong\u003e to ensure safety before starting any electrical work on your outboard engine.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eLocate the ignition coil\u003c\/strong\u003e on your Mercury 30HP or 40HP EFI 3-cylinder engine (refer to your engine's service manual or parts diagram).\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDisconnect the spark plug wire\u003c\/strong\u003e from the old ignition coil by pulling gently on the boot, not the wire.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eUnplug the electrical connector\u003c\/strong\u003e from the ignition coil by pressing the release tab and pulling the connector free.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eRemove the mounting bolts\u003c\/strong\u003e securing the old coil to the engine block using the appropriate wrench or socket.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eLift out the old ignition coil\u003c\/strong\u003e carefully and set it aside.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePosition the new ignition coil\u003c\/strong\u003e in the same location, aligning the mounting holes with the engine block.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eInstall and tighten the mounting bolts\u003c\/strong\u003e to secure the new coil, following manufacturer torque specifications if available.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eReconnect the electrical connector\u003c\/strong\u003e to the new ignition coil, ensuring it clicks into place securely.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eAttach the spark plug wire\u003c\/strong\u003e to the new coil by pressing the boot firmly onto the terminal.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eReconnect the battery\u003c\/strong\u003e and test the engine to verify proper ignition and smooth operation.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eInspect all connections\u003c\/strong\u003e after the initial test run to ensure everything is secure and functioning correctly.\u003c\/li\u003e\n\u003c\/ol\u003e\n\n\u003ch2\u003eTroubleshooting \u0026amp; FAQ\u003c\/h2\u003e\n\n\u003cp\u003e\u003cstrong\u003eQ: How do I know if my ignition coil needs replacing?\u003c\/strong\u003e\u003cbr\u003e\nA: Common signs include difficulty starting the engine, rough idling, misfiring, loss of power, or complete failure to start. If your spark plugs are in good condition but you still experience these symptoms, the ignition coil may be faulty.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eQ: How do I confirm this ignition coil fits my Mercury engine?\u003c\/strong\u003e\u003cbr\u003e\nA: Verify that your engine is a Mercury 30HP or 40HP EFI 3-cylinder model. Cross-reference your current part number (8M0045124 or 8M0034012) with the specifications listed. You can also consult the Mercury parts diagrams linked above.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eQ: Can I install this ignition coil myself?\u003c\/strong\u003e\u003cbr\u003e\nA: Yes, if you have basic mechanical skills and tools. However, working with ignition systems requires caution. Always disconnect the battery first and follow proper safety procedures. Professional installation is recommended if you're unsure.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eQ: How often should I replace the ignition coil?\u003c\/strong\u003e\u003cbr\u003e\nA: Ignition coils typically last many years under normal use. Replace them only when symptoms of failure appear or during major engine overhauls. Regular maintenance and inspection can help identify issues early.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eQ: Is this an OEM part or aftermarket?\u003c\/strong\u003e\u003cbr\u003e\nA: This listing is an aftermarket replacement part (not an OEM component). We build to OEM specifications using comparable-grade materials. Production is done in an ISO9002-certified facility, and each batch is inspected for consistent performance.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eQ: How fast do you ship and how much does it cost?\u003c\/strong\u003e\u003cbr\u003e\nA: We offer fast global shipping—typically 5–15 days worldwide—and standard shipping is free. Expedited options are available at checkout depending on your location.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eQ: What is your warranty and return policy?\u003c\/strong\u003e\u003cbr\u003e\nA: This product includes a 1-year warranty against manufacturing defects under normal use. If something goes wrong, contact our support team with your order details. Returns are accepted within our standard return window (unused \u0026amp; in original condition); please see our policy page or reach out for instructions.\u003c\/p\u003e\n\n\u003ch2\u003eImportant Notes\u003c\/h2\u003e\n\n\u003cul\u003e\n  \u003cli\u003eVerify that the product images and specifications match your original part. If discrepancies exist—even if your model is listed—do not proceed with the purchase.\u003c\/li\u003e\n  \u003cli\u003eThis product is an aftermarket replacement part and is not an OEM component.\u003c\/li\u003e\n  \u003cli\u003eProfessional installation is recommended to ensure safety and optimal performance.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eWhy Choose JLM MARINE?\u003c\/h2\u003e\n\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eQuality Assured:\u003c\/strong\u003e As a trusted manufacturer for over 20 years, we supply top marine brands globally.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFast Global Shipping:\u003c\/strong\u003e Free delivery worldwide in 5–15 days.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDirect from Manufacturer:\u003c\/strong\u003e Competitive pricing without compromising quality.\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"JLM Marine","offers":[{"title":"Default Title","offer_id":51981021151545,"sku":"24IC372","price":58.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0885\/0433\/6697\/files\/12_8372588e-de21-426d-8f05-468f0a0e47e9.jpg?v=1772414695","url":"https:\/\/jlmmarine.com\/ru\/products\/8m0045124-ignition-coil-for-mercury-30hp-40hp-efi-3cyl-jlm-marine","provider":"JLM Marine Boat Parts Limited","version":"1.0","type":"link"}