{"product_id":"valeo-501821-alternator","title":"Valeo 501821 Alternator","description":"\u003ch2\u003eOE-Style Charging Performance\u003c\/h2\u003e\u003cp\u003eThe Valeo 501821 alternator is a 14-volt charging unit built for reliable electrical output and OE-style fitment. It is a new alternator, not remanufactured, and uses an internal regulator with a clockwise rotation for consistent operation.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e150-amp output for steady charging performance\u003c\/li\u003e\n\u003cli\u003eInternal fan and internal regulator for integrated design\u003c\/li\u003e\n\u003cli\u003e6-groove pulley with serpentine belt drive\u003c\/li\u003e\n\u003cli\u003eFemale 2-terminal connector for direct electrical connection\u003c\/li\u003e\n\u003cli\u003eDesigned for seamless OE fitment\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eBuilt for Cadillac Charging Systems\u003c\/h2\u003e\u003cp\u003eThis Valeo alternator 501821 is engineered for Cadillac ATS and Cadillac CTS applications with confirmed fitment across multiple model years. Fits 2013-2014 Cadillac ATS, Alternator; Fits 2015 Cadillac ATS, Alternator with Start\/Stop Feature; Fits 2016-2017 Cadillac ATS, Alternator; Fits 2014-2015 Cadillac CTS, Alternator. This part cross-references Gates (e.g., 22059) for the same application.\u003c\/p\u003e\u003cp\u003eValeo’s Alternator line focuses on OE-quality electrical replacement parts for modern charging systems. The 501821 reflects that product line approach with new construction, tested durability, and output engineering intended to maintain charging efficiency without increasing unit size.\u003c\/p\u003e\u003ch2\u003eCommon Replacement Issues\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eBattery warning light caused by weak charging output\u003c\/li\u003e\n\u003cli\u003eDim lights or unstable electrical performance\u003c\/li\u003e\n\u003cli\u003eCharging system noise from a worn alternator\u003c\/li\u003e\n\u003cli\u003eFailure to maintain voltage under electrical load\u003c\/li\u003e\n\u003cli\u003eStart\/stop charging concerns on equipped applications\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eInstallation Notes\u003c\/h2\u003e\u003cp\u003eVerify pulley style, connector type, rotation direction, and amperage rating before installation. Confirm the vehicle’s charging system configuration, especially on Cadillac ATS models with Start\/Stop Feature. Match the alternator to the listed fitment and electrical specifications before replacement.\u003c\/p\u003e\u003ch2\u003eQuality Assurance\u003c\/h2\u003e\u003cp\u003eValeo has supplied automotive electrical systems since 1923. This alternator is tested for extended thermal, vibration, and electrical durability, and it is built as a 100% new unit for dependable service.\u003c\/p\u003e","brand":"Valeo","offers":[{"title":"Default Title","offer_id":53512128889013,"sku":"BCRR-501821","price":265.4,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0628\/1442\/1173\/files\/V3_501821_Fro.jpg?v=1791870005","url":"https:\/\/www.partcatalog.com\/products\/valeo-501821-alternator","provider":"PartCatalog","version":"1.0","type":"link"}