{"product_id":"oem-alternator-voltage-regulator-m552","title":"OEM Valeo Voltage Regulator M552","description":"\u003ch4 id=\"todd_182\" class=\"\"\u003eSpecifications\u003c\/h4\u003e\n\u003cdiv class=\"tab-panel\"\u003e\n\u003cdiv id=\"tabcontents_182\"\u003e\n\u003cdiv class=\"product-attr-tab\"\u003e\n\u003cdiv class=\"tab-panel\"\u003e\n\u003cdiv id=\"tabcontents_182\"\u003e\n\u003cdiv class=\"product-attr-tab\"\u003e\n\u003cdiv class=\"tab-panel\"\u003e\n\u003cdiv id=\"tabcontents_182\"\u003e\n\u003cdiv class=\"product-attr-tab\"\u003e\n\u003cdiv class=\"tab-panel\"\u003e\n\u003cdiv id=\"tabcontents_182\"\u003e\n\u003cdiv class=\"product-attr-tab\"\u003e\n\u003cdiv class=\"tab-panel\"\u003e\n\u003cdiv id=\"tabcontents_182\"\u003e\n\u003cdiv class=\"product-attr-tab\"\u003e\n\u003cdiv class=\"tab-panel\"\u003e\n\u003cdiv id=\"tabcontents_182\"\u003e\n\u003cdiv class=\"product-attr-tab\"\u003e\n\u003cdiv class=\"tab-panel\"\u003e\n\u003cdiv id=\"tabcontents_182\"\u003e\n\u003cdiv class=\"product-attr-tab\"\u003e\n\u003cdiv class=\"tab-panel\"\u003e\n\u003cdiv id=\"tabcontents_182\"\u003e\n\u003cdiv class=\"product-attr-tab\"\u003e\n\u003cdiv class=\"tab-panel\"\u003e\n\u003cdiv id=\"tabcontents_182\"\u003e\n\u003cdiv class=\"product-attr-tab\"\u003e\n\u003cdiv class=\"tab-panel\"\u003e\n\u003cdiv id=\"tabcontents_182\"\u003e\n\u003cdiv class=\"product-attr-tab\"\u003e\n\u003cul\u003e\n\u003cli\u003eMFR:VALEO\u003c\/li\u003e\n\u003cli\u003eFEATURE 1:100% New\u003c\/li\u003e\n\u003cli\u003eFEATURE 2:Active Lamp\u003c\/li\u003e\n\u003cli\u003eFEATURE 3:L-FR Terminals\u003c\/li\u003e\n\u003cli\u003eFEATURE 4:Lamp and Field Short Circuit Protection\u003c\/li\u003e\n\u003cli\u003eFEATURE 5:Soft Start and LRC Functions\u003c\/li\u003e\n\u003cli\u003eFEATURE 6:Under Voltage Indication\u003c\/li\u003e\n\u003cli\u003eNOTE 1:Terminal Identification: L-FR Terminals\u003c\/li\u003e\n\u003cli\u003eSPECS FOR:Valeo IR\/IF Alternators\u003c\/li\u003e\n\u003cli\u003eSPECS:12 Volt, B-Circuit, 14.5 Vset\u003cbr\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003ch4 class=\"\" id=\"todd_398\"\u003eUSED ON\u003c\/h4\u003e\n\u003cdiv id=\"tabcontents_398\"\u003e\n\u003cdiv class=\"product-attr-tab\"\u003e\n\u003cdiv class=\"tab-panel\"\u003e\n\u003cdiv id=\"tabcontents_398\"\u003e\n\u003cdiv class=\"product-attr-tab\"\u003e\n\u003cul\u003e\n\u003cli\u003eMini (2002-2005)\u003cbr\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"tab-panel\"\u003e\n\u003cdiv id=\"tabcontents_403\" class=\"\"\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv id=\"tabcontents_398\"\u003e\n\u003cdiv class=\"product-attr-tab\"\u003e\n\u003cdiv class=\"tab-panel\"\u003e\n\u003cdiv id=\"tabcontents_398\"\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"tab-panel\"\u003e\n\u003cdiv id=\"tabcontents_403\" class=\"\"\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv id=\"tabcontents_398\"\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv id=\"tabcontents_398\"\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv id=\"tabcontents_398\"\u003e\u003c\/div\u003e\n\u003cdiv id=\"tabcontents_398\"\u003e\n\u003cdiv class=\"product-attr-tab\"\u003e\n\u003cdiv class=\"tab-panel\"\u003e\n\u003cdiv id=\"tabcontents_398\"\u003e\n\u003cdiv class=\"product-attr-tab\"\u003e\n\u003ch4 id=\"todd_396\" class=\"\"\u003eReplaces\u003c\/h4\u003e\n\u003cdiv id=\"tabcontents_396\"\u003e\n\u003cdiv class=\"product-attr-tab\"\u003e\n\u003cul\u003e\n\u003cli\u003eValeo 593551\u003cbr\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4 id=\"todd_503\" class=\"\"\u003eLESTER NUMBERS\u003c\/h4\u003e\n\u003cdiv id=\"tabcontents_503\"\u003e\n\u003cdiv class=\"product-attr-tab\"\u003e\n\u003cul\u003e\n\u003cli\u003e11050\u003cbr\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"tab-panel\"\u003e\n\u003cdiv class=\"\" id=\"tabcontents_403\"\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv id=\"tabcontents_396\"\u003e\n\u003cdiv class=\"product-attr-tab\"\u003e\n\u003cdiv id=\"tabcontents_503\"\u003e\n\u003cdiv class=\"product-attr-tab\"\u003e\n\u003ch4 class=\"\" id=\"todd_504\"\u003eUNIT NUMBERS\u003c\/h4\u003e\n\u003cdiv id=\"tabcontents_504\"\u003e\n\u003cdiv class=\"product-attr-tab\"\u003e\n\u003cdiv class=\"tab-panel\"\u003e\n\u003cdiv id=\"tabcontents_504\"\u003e\n\u003cdiv class=\"product-attr-tab\"\u003e\n\u003cdiv class=\"tab-panel\"\u003e\n\u003cdiv id=\"tabcontents_504\"\u003e\n\u003cdiv class=\"product-attr-tab\"\u003e\n\u003cdiv class=\"tab-panel\"\u003e\n\u003cdiv id=\"tabcontents_504\"\u003e\n\u003cdiv class=\"product-attr-tab\"\u003e\n\u003cul\u003e\n\u003cli\u003eBMW 12-31-7-515-033, 12-31-7-515-426; Valeo SG12S073\u003cbr\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eVehicle Application\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eBMW - Europe Car\u003c\/strong\u003e\u003cbr\u003eMini One 1600, 16V, W10 B16A 2004-2007\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eMini Car\u003c\/strong\u003e\u003cbr\u003eCooper L4 1.6L 1600cc W10B16A 2002-2005\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv id=\"tabcontents_398\"\u003e\n\u003cdiv class=\"product-attr-tab\"\u003e\n\u003cdiv id=\"tabcontents_396\"\u003e\n\u003cdiv class=\"product-attr-tab\"\u003e\n\u003cdiv id=\"tabcontents_504\"\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv id=\"tabcontents_398\"\u003e\n\u003cdiv class=\"product-attr-tab\"\u003e\n\u003cdiv id=\"tabcontents_396\"\u003e\n\u003cdiv class=\"product-attr-tab\"\u003e\n\u003cdiv id=\"tabcontents_503\"\u003e\n\u003cdiv class=\"product-attr-tab\"\u003e\n\u003cdiv id=\"tabcontents_504\"\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv id=\"tabcontents_182\"\u003e\n\u003cdiv class=\"product-attr-tab\"\u003e\n\u003cdiv id=\"tabcontents_398\"\u003e\n\u003cdiv class=\"product-attr-tab\"\u003e\n\u003cdiv id=\"tabcontents_396\"\u003e\n\u003cdiv class=\"product-attr-tab\"\u003e\n\u003cdiv id=\"tabcontents_503\"\u003e\n\u003cdiv class=\"product-attr-tab\"\u003e\n\u003cdiv id=\"tabcontents_504\"\u003e\n\u003cdiv class=\"product-attr-tab\"\u003e\n\u003cdiv id=\"tabcontents_504\"\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003ch2 dir=\"ltr\"\u003e\u003cspan\u003eFeatures \u0026amp; Benefits\u003c\/span\u003e\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli dir=\"ltr\"\u003e\n\u003cp dir=\"ltr\" role=\"presentation\"\u003e\u003cspan\u003eGenuine OEM replacement part\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli dir=\"ltr\"\u003e\n\u003cp dir=\"ltr\" role=\"presentation\"\u003e\u003cspan\u003eManufactured to original factory specifications\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli dir=\"ltr\"\u003e\n\u003cp dir=\"ltr\" role=\"presentation\"\u003e\u003cspan\u003eRegulates alternator output voltage\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli dir=\"ltr\"\u003e\n\u003cp dir=\"ltr\" role=\"presentation\"\u003e\u003cspan\u003eHelps maintain proper battery charging\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli dir=\"ltr\"\u003e\n\u003cp dir=\"ltr\" role=\"presentation\"\u003e\u003cspan\u003eSupports stable charging system performance\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli dir=\"ltr\"\u003e\n\u003cp dir=\"ltr\" role=\"presentation\"\u003e\u003cspan\u003eOriginal fit, function, and electrical characteristics\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli dir=\"ltr\"\u003e\n\u003cp dir=\"ltr\" role=\"presentation\"\u003e\u003cspan\u003eIdeal for alternator rebuilding and repair\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli dir=\"ltr\"\u003e\n\u003cp dir=\"ltr\" role=\"presentation\"\u003e\u003cspan\u003eEngineered for long-term reliability\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp dir=\"ltr\"\u003e \u003c\/p\u003e\n\u003chr\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch2 dir=\"ltr\"\u003e\u003cspan\u003eWhat Does a Voltage Regulator Do?\u003c\/span\u003e\u003c\/h2\u003e\n\u003cp dir=\"ltr\"\u003e\u003cspan\u003eThe voltage regulator controls the alternator's output by regulating current supplied to the rotor field winding. As electrical demand changes, the regulator continuously adjusts field current to maintain the proper charging voltage for the battery and the vehicle's electrical system.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp dir=\"ltr\"\u003e\u003cspan\u003eA properly functioning voltage regulator helps prevent battery overcharging and undercharging while protecting sensitive electrical components from excessive voltage. Because charging system performance depends on the interaction between the regulator, rotor, stator, rectifier, and battery, replacing a faulty regulator is an important step in restoring alternator performance.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp dir=\"ltr\"\u003e \u003c\/p\u003e\n\u003chr\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch2 dir=\"ltr\"\u003e\u003cspan\u003eCommon Signs Replacement Is Needed\u003c\/span\u003e\u003c\/h2\u003e\n\u003cp dir=\"ltr\"\u003e\u003cspan\u003eReplace the voltage regulator if you notice:\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli dir=\"ltr\"\u003e\n\u003cp dir=\"ltr\" role=\"presentation\"\u003e\u003cspan\u003eBattery overcharging\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli dir=\"ltr\"\u003e\n\u003cp dir=\"ltr\" role=\"presentation\"\u003e\u003cspan\u003eBattery not charging\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli dir=\"ltr\"\u003e\n\u003cp dir=\"ltr\" role=\"presentation\"\u003e\u003cspan\u003eLow charging voltage\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli dir=\"ltr\"\u003e\n\u003cp dir=\"ltr\" role=\"presentation\"\u003e\u003cspan\u003eHigh charging voltage\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli dir=\"ltr\"\u003e\n\u003cp dir=\"ltr\" role=\"presentation\"\u003e\u003cspan\u003eBattery warning light illuminated\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli dir=\"ltr\"\u003e\n\u003cp dir=\"ltr\" role=\"presentation\"\u003e\u003cspan\u003eIntermittent charging problems\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli dir=\"ltr\"\u003e\n\u003cp dir=\"ltr\" role=\"presentation\"\u003e\u003cspan\u003eHeadlights that brighten or dim with engine speed\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli dir=\"ltr\"\u003e\n\u003cp dir=\"ltr\" role=\"presentation\"\u003e\u003cspan\u003eCharging system failure during testing\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli dir=\"ltr\"\u003e\n\u003cp dir=\"ltr\" role=\"presentation\"\u003e\u003cspan\u003eVoltage regulator failure discovered during alternator rebuilding\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp dir=\"ltr\"\u003e \u003c\/p\u003e\n\u003chr\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch2 dir=\"ltr\"\u003e\u003cspan\u003eInstallation Recommendations\u003c\/span\u003e\u003c\/h2\u003e\n\u003cp dir=\"ltr\"\u003e\u003cspan\u003eInstallation should be performed by a qualified technician or experienced alternator rebuilder. Before installing the new regulator, inspect the brushes, brush holder, slip rings, rotor, stator, rectifier, wiring, and electrical connections for signs of wear or damage.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp dir=\"ltr\"\u003e\u003cspan\u003eAlways verify connector configuration and mounting style before installation. After assembly, bench-test the alternator to confirm proper charging voltage and overall charging system performance.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp dir=\"ltr\"\u003e \u003c\/p\u003e\n\u003chr\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch2 dir=\"ltr\"\u003e\u003cspan\u003eWhile You're Rebuilding\u003c\/span\u003e\u003c\/h2\u003e\n\u003cp dir=\"ltr\"\u003e\u003cspan\u003eInspect other common wear components to help maximize charging system reliability:\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli dir=\"ltr\"\u003e\n\u003cp dir=\"ltr\" role=\"presentation\"\u003e\u003ca href=\"https:\/\/rcautoelectric.com\/collections\/alternator-parts?filter.p.product_type=Bearing\u0026amp;sort_by=best-selling\"\u003e\u003cspan\u003eBearings\u003c\/span\u003e\u003c\/a\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli dir=\"ltr\"\u003e\n\u003cp dir=\"ltr\" role=\"presentation\"\u003e\u003ca href=\"https:\/\/rcautoelectric.com\/collections\/alternator-parts?filter.p.product_type=Brushes\u0026amp;sort_by=best-selling\"\u003e\u003cspan\u003eBrushes\u003c\/span\u003e\u003c\/a\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli dir=\"ltr\"\u003e\n\u003cp dir=\"ltr\" role=\"presentation\"\u003e\u003ca href=\"https:\/\/rcautoelectric.com\/collections\/alternator-parts?filter.p.product_type=Brush+Holder\u0026amp;sort_by=best-selling\"\u003e\u003cspan\u003eBrush Holder\u003c\/span\u003e\u003c\/a\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli dir=\"ltr\"\u003e\n\u003cp dir=\"ltr\" role=\"presentation\"\u003e\u003ca href=\"https:\/\/rcautoelectric.com\/collections\/alternator-parts?filter.p.product_type=Slip+Ring\u0026amp;sort_by=best-selling\"\u003e\u003cspan\u003eSlip Rings\u003c\/span\u003e\u003c\/a\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli dir=\"ltr\"\u003e\n\u003cp dir=\"ltr\" role=\"presentation\"\u003e\u003ca href=\"https:\/\/rcautoelectric.com\/collections\/alternator-parts?filter.p.product_type=Rectifier\u0026amp;sort_by=best-selling\"\u003e\u003cspan\u003eRectifier\u003c\/span\u003e\u003c\/a\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli dir=\"ltr\"\u003e\n\u003cp dir=\"ltr\" role=\"presentation\"\u003e\u003ca href=\"https:\/\/rcautoelectric.com\/collections\/alternator-parts?filter.p.product_type=Diode\u0026amp;sort_by=best-selling\"\u003e\u003cspan\u003eDiodes\u003c\/span\u003e\u003c\/a\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli dir=\"ltr\"\u003e\n\u003cp dir=\"ltr\" role=\"presentation\"\u003e\u003ca href=\"https:\/\/rcautoelectric.com\/collections\/alternator-parts?filter.p.product_type=Rotor\u0026amp;sort_by=best-selling\"\u003e\u003cspan\u003eRotor\u003c\/span\u003e\u003c\/a\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli dir=\"ltr\"\u003e\n\u003cp dir=\"ltr\" role=\"presentation\"\u003e\u003ca href=\"https:\/\/rcautoelectric.com\/collections\/alternator-parts?filter.p.product_type=Clutch+Pulley\u0026amp;sort_by=best-selling\"\u003e\u003cspan\u003eClutch Pulley\u003c\/span\u003e\u003c\/a\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli dir=\"ltr\"\u003e\n\u003cp dir=\"ltr\" role=\"presentation\"\u003e\u003ca href=\"https:\/\/rcautoelectric.com\/collections\/alternator-parts?filter.p.product_type=Insulator\u0026amp;sort_by=best-selling\"\u003e\u003cspan\u003eInsulators\u003c\/span\u003e\u003c\/a\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp dir=\"ltr\"\u003e \u003c\/p\u003e\n\u003chr\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch2 dir=\"ltr\"\u003e\u003cspan\u003eWhy Buy From RC Auto Electric?\u003c\/span\u003e\u003c\/h2\u003e\n\u003cp dir=\"ltr\"\u003e\u003cspan\u003eRC Auto Electric specializes in genuine OEM and premium aftermarket alternator and starter rebuilding components for professional rebuilders, repair shops, automotive technicians, and DIY enthusiasts. Our extensive catalog includes thousands of electrical components backed by accurate cross-reference information to help simplify part identification and reduce ordering mistakes.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp dir=\"ltr\"\u003e \u003c\/p\u003e\n\u003chr\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch2 dir=\"ltr\"\u003e\u003cspan\u003eDisclaimer\u003c\/span\u003e\u003c\/h2\u003e\n\u003cp dir=\"ltr\"\u003e\u003cspan\u003eCompatibility information is provided as a reference only. Manufacturing revisions, production changes, and previous rebuilding modifications may affect internal alternator components. Always compare the original OEM part number, connector configuration, mounting style, voltage specifications, cross-reference numbers, and product photographs before installation. If you are unsure about compatibility, contact RC Auto Electric before ordering.\u003c\/span\u003e\u003c\/p\u003e\n\u003c!-- RC-OEM-VOLTAGE-REGULATOR-DESCRIPTION --\u003e\n\u003ch5\u003eFeatures \u0026amp; Benefits\u003c\/h5\u003e\n\u003cul\u003e\n\u003cli\u003eGenuine OEM replacement part\u003c\/li\u003e\n\u003cli\u003eManufactured to original factory specifications\u003c\/li\u003e\n\u003cli\u003eRegulates alternator output voltage\u003c\/li\u003e\n\u003cli\u003eHelps maintain proper battery charging\u003c\/li\u003e\n\u003cli\u003eSupports stable charging system performance\u003c\/li\u003e\n\u003cli\u003eOriginal fit, function, and electrical characteristics\u003c\/li\u003e\n\u003cli\u003eIdeal for alternator rebuilding and repair\u003c\/li\u003e\n\u003cli\u003eEngineered for long-term reliability\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch5\u003eWhat Does a Voltage Regulator Do?\u003c\/h5\u003e\n\u003cp\u003eThe voltage regulator controls the alternator's output by regulating current supplied to the rotor field winding. As electrical demand changes, the regulator continuously adjusts field current to maintain the proper charging voltage for the battery and the vehicle's electrical system.\u003c\/p\u003e\n\u003cp\u003eA properly functioning voltage regulator helps prevent battery overcharging and undercharging while protecting sensitive electrical components from excessive voltage. Because charging system performance depends on the interaction between the regulator, rotor, stator, rectifier, and battery, replacing a faulty regulator is an important step in restoring alternator performance.\u003c\/p\u003e\n\u003ch5\u003eCommon Signs Replacement Is Needed\u003c\/h5\u003e\n\u003cp\u003eReplace the voltage regulator if you notice:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eBattery overcharging\u003c\/li\u003e\n\u003cli\u003eBattery not charging\u003c\/li\u003e\n\u003cli\u003eLow charging voltage\u003c\/li\u003e\n\u003cli\u003eHigh charging voltage\u003c\/li\u003e\n\u003cli\u003eBattery warning light illuminated\u003c\/li\u003e\n\u003cli\u003eIntermittent charging problems\u003c\/li\u003e\n\u003cli\u003eHeadlights that brighten or dim with engine speed\u003c\/li\u003e\n\u003cli\u003eCharging system failure during testing\u003c\/li\u003e\n\u003cli\u003eVoltage regulator failure discovered during alternator rebuilding\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch5\u003eInstallation Recommendations\u003c\/h5\u003e\n\u003cp\u003eInstallation should be performed by a qualified technician or experienced alternator rebuilder. Before installing the new regulator, inspect the brushes, brush holder, slip rings, rotor, stator, rectifier, wiring, and electrical connections for signs of wear or damage.\u003c\/p\u003e\n\u003cp\u003eAlways verify connector configuration and mounting style before installation. After assembly, bench-test the alternator to confirm proper charging voltage and overall charging system performance.\u003c\/p\u003e\n\u003ch5\u003eWhile You're Rebuilding\u003c\/h5\u003e\n\u003cp\u003eInspect other common wear components to help maximize charging system reliability:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eBearings\u003c\/li\u003e\n\u003cli\u003eBrushes\u003c\/li\u003e\n\u003cli\u003eBrush Holder\u003c\/li\u003e\n\u003cli\u003eSlip Rings\u003c\/li\u003e\n\u003cli\u003eRectifier\u003c\/li\u003e\n\u003cli\u003eDiodes\u003c\/li\u003e\n\u003cli\u003eRotor\u003c\/li\u003e\n\u003cli\u003eClutch Pulley\u003c\/li\u003e\n\u003cli\u003eInsulators\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch5\u003eWhy Buy From RC Auto Electric?\u003c\/h5\u003e\n\u003cp\u003eRC Auto Electric specializes in genuine OEM and premium aftermarket alternator and starter rebuilding components for professional rebuilders, repair shops, automotive technicians, and DIY enthusiasts. Our extensive catalog includes thousands of electrical components backed by accurate cross-reference information to help simplify part identification and reduce ordering mistakes.\u003c\/p\u003e\n\u003ch5\u003eDisclaimer\u003c\/h5\u003e\n\u003cp\u003eCompatibility information is provided as a reference only. Manufacturing revisions, production changes, and previous rebuilding modifications may affect internal alternator components. Always compare the original OEM part number, connector configuration, mounting style, voltage specifications, cross-reference numbers, and product photographs before installation. If you are unsure about compatibility, contact RC Auto Electric before ordering.\u003c\/p\u003e","brand":"Valeo","offers":[{"title":"Default Title","offer_id":47222816833790,"sku":"M552OEM","price":100.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0622\/4432\/3582\/files\/w082-158n_l_1.jpg?v=1756546436","url":"https:\/\/rcautoelectric.com\/products\/oem-alternator-voltage-regulator-m552","provider":"RC Auto Electric Parts","version":"1.0","type":"link"}