{"product_id":"oem-alternator-voltage-regulator-ib5378","title":"OEM Bosch Voltage Regulator IB5378","description":"\u003cdiv class=\"tab-panel\"\u003e\n\u003ch4 class=\"\" id=\"todd_182\"\u003eSpecifications\u003c\/h4\u003e\n\u003cdiv id=\"tabcontents_182\"\u003e\n\u003cdiv class=\"product-attr-tab\"\u003e\n\u003cul\u003e\n\u003cli\u003eMFR:BOSCH\u003c\/li\u003e\n\u003cli\u003eFEATURE 1:100% New OEM\u003c\/li\u003e\n\u003cli\u003eFEATURE 2:LIN (COM) Regulator\u003c\/li\u003e\n\u003cli\u003eFEATURE 3:COM ID Code: 32\u003c\/li\u003e\n\u003cli\u003eFEATURE 4:LIN or Stator Activated\u003c\/li\u003e\n\u003cli\u003eFEATURE 5:LIN Regulator\u003c\/li\u003e\n\u003cli\u003eFEATURE 6:With Field Short Circuit Protection\u003c\/li\u003e\n\u003cli\u003eFEATURE 7:With Soft Start and LRC Function\u003c\/li\u003e\n\u003cli\u003eNOTE 1:Companion Rectifier IBR257\u003c\/li\u003e\n\u003cli\u003eNOTE 2:Terminal Identification: Lin\u003c\/li\u003e\n\u003cli\u003eSPECS FOR:Bosch IR\/IF Alternator\u003c\/li\u003e\n\u003cli\u003eSPECS:12 Volt, B-Circuit, Volt Set range is from 10.6V to 16.0V\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 class=\"tab-panel\"\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\u003cul\u003e\n\u003cli\u003eMercedes-Benz (2006-2009)\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\n\u003cdiv class=\"tab-panel\"\u003e\n\u003ch4 class=\"\" id=\"todd_396\"\u003eReplaces\u003c\/h4\u003e\n\u003cdiv id=\"tabcontents_396\"\u003e\n\u003cdiv class=\"product-attr-tab\"\u003e\n\u003cul\u003e\n\u003cli\u003eBosch F 00M 144 158, F 00M 145 310, F 00M 145 378, F 00M 145 852, F 00M 145 886, Mercedes-Benz 003 154 44 06, 003 154 62 06, 003-154-75-06, 004-154-01-06, A 003 154 44 06, A 003 154 62 06, A-003-154-75-06, A-004-154-01-06\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 class=\"tab-panel\"\u003e\n\u003ch4 class=\"\" id=\"todd_503\"\u003eLESTER NUMBERS\u003c\/h4\u003e\n\u003cdiv id=\"tabcontents_503\"\u003e\n\u003cdiv class=\"product-attr-tab\"\u003e\n\u003cul\u003e\n\u003cli\u003e11217\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 class=\"tab-panel\"\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\u003cul\u003e\n\u003cli\u003eBosch 0 124 625 023, 0 124 625 208; Chrysler 68011841AA, 68011841AB; Mercedes-Benz 272 154 01 02 80, 272-154-01-02, A 272 154 01 02 80, A272-154-01-02\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eVehicle Application\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eDodge Van\u003c\/strong\u003e\u003cbr\u003eSprinter 2500 V6 3.5L 3498cc GAS; VIN 6; EG2 2007-2008\u003cbr\u003eSprinter 3500 V6 3.5L 3498cc GAS; VIN 6; EG2 2007-2008\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eFreightliner Van\u003c\/strong\u003e\u003cbr\u003eSprinter 2500 V6 3.5L 3498cc 2007-2008\u003cbr\u003eSprinter 3500 V6 3.5L 3498cc 2007-2008\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eMercedes - Europe Car\u003c\/strong\u003e\u003cbr\u003eE280 3000 2005-2009\u003cbr\u003eE350 3500 2004-2009\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eMercedes-Benz Car\u003c\/strong\u003e\u003cbr\u003eE350 V6 3.5L 3498cc 2006\u003cbr\u003eR350 V6 3.5L 3498cc 2006\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eMercedes-Benz Truck\u003c\/strong\u003e\u003cbr\u003eML350 V6 3.5L 3498cc 2006\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\u003ch2\u003e\u003cspan\u003eFeatures \u0026amp; Benefits\u003c\/span\u003e\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cspan\u003eGenuine OEM replacement part\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eManufactured to original factory specifications\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eRegulates alternator output voltage\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eHelps maintain proper battery charging\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eSupports stable charging system performance\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eOriginal fit, function, and electrical characteristics\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eIdeal for alternator rebuilding and repair\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eEngineered for long-term reliability\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cdiv\u003e\u003chr\u003e\u003c\/div\u003e\n\u003ch2\u003e\u003cspan\u003eWhat Does a Voltage Regulator Do?\u003c\/span\u003e\u003c\/h2\u003e\n\u003cp class=\"isSelectedEnd\"\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 class=\"isSelectedEnd\"\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\u003cdiv\u003e\u003chr\u003e\u003c\/div\u003e\n\u003ch2\u003e\u003cspan\u003eCommon Signs Replacement Is Needed\u003c\/span\u003e\u003c\/h2\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eReplace the voltage regulator if you notice:\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cspan\u003eBattery overcharging\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eBattery not charging\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eLow charging voltage\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eHigh charging voltage\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eBattery warning light illuminated\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eIntermittent charging problems\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eHeadlights that brighten or dim with engine speed\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eCharging system failure during testing\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eVoltage regulator failure discovered during alternator rebuilding\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cdiv\u003e\u003chr\u003e\u003c\/div\u003e\n\u003ch2\u003e\u003cspan\u003eInstallation Recommendations\u003c\/span\u003e\u003c\/h2\u003e\n\u003cp class=\"isSelectedEnd\"\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 class=\"isSelectedEnd\"\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\u003cdiv\u003e\u003chr\u003e\u003c\/div\u003e\n\u003ch2\u003e\u003cspan\u003eWhile You're Rebuilding\u003c\/span\u003e\u003c\/h2\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eInspect other common wear components to help maximize charging system reliability:\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\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\/li\u003e\n\u003cli\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\/li\u003e\n\u003cli\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\/li\u003e\n\u003cli\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\/li\u003e\n\u003cli\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\/li\u003e\n\u003cli\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\/li\u003e\n\u003cli\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\/li\u003e\n\u003cli\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\/li\u003e\n\u003cli\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\/li\u003e\n\u003c\/ul\u003e\n\u003cdiv\u003e\u003chr\u003e\u003c\/div\u003e\n\u003ch2\u003e\u003cspan\u003eWhy Buy From RC Auto Electric?\u003c\/span\u003e\u003c\/h2\u003e\n\u003cp class=\"isSelectedEnd\"\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\u003cdiv\u003e\u003chr\u003e\u003c\/div\u003e\n\u003ch2\u003e\u003cspan\u003eDisclaimer\u003c\/span\u003e\u003c\/h2\u003e\n\u003cp\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","brand":"Bosch","offers":[{"title":"Default Title","offer_id":47230652973310,"sku":"IB5378OEM","price":100.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0622\/4432\/3582\/files\/w080-63n_l_1.jpg?v=1756541840","url":"https:\/\/rcautoelectric.com\/products\/oem-alternator-voltage-regulator-ib5378","provider":"RC Auto Electric Parts","version":"1.0","type":"link"}