{"product_id":"8m0134477-rectifier-regulator-for-mercury-mercruiser-jlm-marine","title":"8M0134477 Rectifier Regulator for Mercury Mercruiser | JLM Marine","description":"\u003ch2\u003e8M0134477 Rectifier Regulator for Mercury Mercruiser Outboard | JLM Marine\u003c\/h2\u003e\n\n\u003cp\u003eThis aftermarket voltage regulator rectifier is designed as a direct replacement for Mercury Mercruiser outboard engines, specifically the 9.9 HP EFI, 10 HP EFI, 15 HP EFI, and 20 HP EFI models. Engineered to meet or exceed OEM specifications, this rectifier regulator ensures reliable charging performance and improved heat dissipation for your outboard motor.\u003c\/p\u003e\n\n\u003cp\u003eThis unit directly replaces OEM part number \u003cstrong\u003e8M0134477\u003c\/strong\u003e (Mercruiser) and \u003cstrong\u003e3RS-76060-0\u003c\/strong\u003e (Tohatsu), providing a cost-effective solution without compromising on quality or performance. Each regulator is factory-tested before shipment to guarantee proper function.\u003c\/p\u003e\n\n\u003cul\u003e\n  \u003cli\u003ePlug-and-play design with 4-pin connector for easy, direct installation\u003c\/li\u003e\n  \u003cli\u003eFeatures upgraded electric components and enhanced heat sink technology\u003c\/li\u003e\n  \u003cli\u003eAll products are tested prior to shipping\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\u003eMercruiser\u003c\/td\u003e\n      \u003ctd\u003e8M0134477\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003eTohatsu\u003c\/td\u003e\n      \u003ctd\u003e3RS-76060-0\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\u003cdiv style=\"overflow-x:auto;\"\u003e\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\u003c\/td\u003e\n        \u003ctd\u003eEFI\u003c\/td\u003e\n        \u003ctd\u003e9.9\u003c\/td\u003e\n        \u003ctd\u003eSerial Number 1R008146 and higher\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd\u003eMercury\u003c\/td\u003e\n        \u003ctd\u003eEFI\u003c\/td\u003e\n        \u003ctd\u003e10\u003c\/td\u003e\n        \u003ctd\u003eSerial Number OR833820 and higher\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd\u003eMercury\u003c\/td\u003e\n        \u003ctd\u003eEFI\u003c\/td\u003e\n        \u003ctd\u003e15\u003c\/td\u003e\n        \u003ctd\u003eSerial Number OR833820 and higher\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd\u003eMercury\u003c\/td\u003e\n        \u003ctd\u003eEFI\u003c\/td\u003e\n        \u003ctd\u003e20\u003c\/td\u003e\n        \u003ctd\u003eSerial Number OR833820 and higher\u003c\/td\u003e\n      \u003c\/tr\u003e\n    \u003c\/tbody\u003e\n  \u003c\/table\u003e\n\u003c\/div\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\u003eCondition\u003c\/td\u003e\n      \u003ctd\u003eAftermarket 100% Brand New\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003eType\u003c\/td\u003e\n      \u003ctd\u003eVoltage Regulator Rectifier\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003eQuantity\u003c\/td\u003e\n      \u003ctd\u003e1 PC\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003eNumber of Plug Interface Pins\u003c\/td\u003e\n      \u003ctd\u003e4\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003eNumber of Plugs\u003c\/td\u003e\n      \u003ctd\u003e4\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003eNumber of Wires\u003c\/td\u003e\n      \u003ctd\u003e4\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\u003eYour order includes:\u003c\/p\u003e\n\n\u003cul\u003e\n  \u003cli\u003e\u003cspan style=\"color:red;\"\u003e\u003cstrong\u003e1x Voltage Regulator Rectifier\u003c\/strong\u003e\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003e\u003cem\u003eThe package contains all the parts shown in the product images.\u003c\/em\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 Before beginning any electrical work, disconnect the negative terminal from the battery to prevent electrical shock or short circuits.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eLocate the original regulator rectifier:\u003c\/strong\u003e Find the existing voltage regulator rectifier on your Mercury outboard engine, typically mounted near the engine powerhead.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDisconnect the wiring harness:\u003c\/strong\u003e Carefully unplug the 4-pin connector from the old regulator. Note the orientation and routing of the wires.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eRemove the mounting hardware:\u003c\/strong\u003e Unscrew the bolts or screws securing the old regulator to the engine mounting bracket.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eRemove the old regulator:\u003c\/strong\u003e Lift the old voltage regulator rectifier away from the mounting location.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePosition the new regulator:\u003c\/strong\u003e Align the new rectifier regulator with the mounting holes on the engine bracket, ensuring proper orientation.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSecure with mounting hardware:\u003c\/strong\u003e Install and tighten the mounting bolts or screws to manufacturer specifications. Do not overtighten.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eConnect the wiring harness:\u003c\/strong\u003e Plug the 4-pin connector into the new regulator, ensuring it clicks firmly into place.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eReconnect the battery:\u003c\/strong\u003e Reattach the negative battery terminal and ensure a secure connection.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eTest the charging system:\u003c\/strong\u003e Start the engine and use a multimeter to verify proper charging voltage (typically 13.5-14.5V at battery terminals). Consult your engine manual for specific voltage specifications.\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 confirm this rectifier regulator fits my Mercury outboard?\u003c\/strong\u003e\u003cbr\u003e\nA: Check your engine's serial number against the compatibility table above. This regulator fits 9.9 EFI (serial 1R008146+) and 10\/15\/20 EFI models (serial OR833820+). You can also reference your engine's parts diagram using the Mercury Parts Catalog link provided.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eQ: What are the signs that my voltage regulator rectifier is failing?\u003c\/strong\u003e\u003cbr\u003e\nA: Common symptoms include battery not charging, overcharging (bulging battery or excessive voltage), dim or flickering lights, difficulty starting, or the battery warning light staying illuminated. Use a multimeter to check charging voltage at idle and higher RPMs.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eQ: How often should I replace the rectifier regulator?\u003c\/strong\u003e\u003cbr\u003e\nA: There is no set replacement interval; replace it when it fails or shows signs of malfunction. Regular inspection during seasonal maintenance and monitoring your charging system voltage can help identify issues early.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eQ: Will this aftermarket regulator perform the same as the original Mercury part?\u003c\/strong\u003e\u003cbr\u003e\nA: Yes, this aftermarket rectifier is built to OEM specifications with higher-grade electrical components and improved heat sink design. It meets or exceeds the performance of the original equipment and is tested before shipping.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eQ: What is the difference between OEM and aftermarket parts?\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":51981024559417,"sku":"24RR343","price":84.54,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0885\/0433\/6697\/files\/12_409f5aeb-fbe8-4554-a063-95f5c4c1d453.jpg?v=1772414822","url":"https:\/\/jlmmarine.com\/ru\/products\/8m0134477-rectifier-regulator-for-mercury-mercruiser-jlm-marine","provider":"JLM Marine Boat Parts Limited","version":"1.0","type":"link"}