{"product_id":"valeo-439704-alternator","title":"Valeo 439704 Alternator","description":"\u003ch2\u003eValeo 439704 Alternator for Mercedes-Benz GLK250\u003c\/h2\u003e\u003cp\u003eThe Valeo 439704 is a 12-volt, 180-amp alternator built for dependable charging performance in the 2013-2015 Mercedes-Benz GLK250. As part of the Valeo OE family, this unit uses an internal fan, clockwise rotation, and a 6-groove pulley to match the vehicle’s original electrical and belt-drive requirements.\u003c\/p\u003e\u003cp\u003eValeo has supplied original equipment electrical components since 1923, and this alternator reflects that OE-focused engineering. The Valeo 439704 is a 100% new unit, which helps reduce the risk associated with remanufactured components and supports consistent charging output for daily driving.\u003c\/p\u003e\u003ch2\u003eKey Features\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003e12-volt alternator with 180-amp output\u003c\/li\u003e\n\u003cli\u003eInternal fan design for integrated cooling\u003c\/li\u003e\n\u003cli\u003eClockwise rotation direction\u003c\/li\u003e\n\u003cli\u003e6-groove pulley configuration\u003c\/li\u003e\n\u003cli\u003eAluminium housing construction\u003c\/li\u003e\n\u003cli\u003eValeo OE family replacement for original-equipment fit and function\u003c\/li\u003e\n\u003cli\u003eTechnical number: FGN18S047\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eDetailed Description\u003c\/h2\u003e\u003cp\u003eThis Valeo alternator 439704 is engineered for the Mercedes-Benz GLK250 and matches the vehicle’s OE charging system requirements. It is designed for 2013-2015 Mercedes-Benz GLK250 models and provides the electrical output needed to support the battery, vehicle electronics, lighting, and charging system under normal operating conditions. If you are replacing a worn or failing alternator on a Mercedes-Benz GLK250, this Valeo unit offers a direct OE-style solution with the correct voltage, amperage rating, pulley layout, and rotation direction.\u003c\/p\u003e\u003cp\u003eValeo’s alternator line is built around original equipment standards, and this premium alternator is supplied as a new component rather than a remanufactured unit. This helps maintain consistent performance in applications where charging stability matters. Part number 439704 is also identified by technical number FGN18S047 and cross-references BBB Industries 11738 for the same application.\u003c\/p\u003e\u003ch2\u003eWhat It Helps Fix\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eBattery warning light caused by alternator output loss\u003c\/li\u003e\n\u003cli\u003eLow charging voltage in the Mercedes-Benz GLK250\u003c\/li\u003e\n\u003cli\u003eDim lights or electrical instability during driving\u003c\/li\u003e\n\u003cli\u003eBattery drain from an alternator that is not maintaining charge\u003c\/li\u003e\n\u003cli\u003eNoise or belt-drive issues related to a failing alternator pulley setup\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eInstallation Notes and Tips\u003c\/h2\u003e\u003cp\u003eVerify the vehicle’s original alternator specifications before installation, including 12-volt system voltage, 180-amp rating, clockwise rotation, and 6-groove pulley alignment. Confirm fitment for 2013-2015 Mercedes-Benz GLK250 models and compare the existing unit to part number 439704 or technical number FGN18S047 before replacement. Proper belt condition, connector condition, and battery health should also be checked during charging-system service.\u003c\/p\u003e\u003ch2\u003eQuality Assurance\u003c\/h2\u003e\u003cp\u003eValeo is a long-standing OE supplier in electrical systems, and this alternator is built as a new replacement unit for consistent charging performance. The Valeo 439704 is designed to meet the original application requirements for the Mercedes-Benz GLK250.\u003c\/p\u003e","brand":"Valeo","offers":[{"title":"Default Title","offer_id":52746528030901,"sku":"BCRR-439704","price":754.33,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0628\/1442\/1173\/files\/V3_439704_Fro.jpg?v=1782715856","url":"https:\/\/www.partcatalog.com\/products\/valeo-439704-alternator","provider":"PartCatalog","version":"1.0","type":"link"}