{"product_id":"dorman-601-909-high-intensity-discharge-hid-lighting-ballast","title":"Dorman 601-909 High Intensity Discharge (HID) Lighting Ballast","description":"\u003ch2\u003eDorman 601-909 HID Ballast Overview\u003c\/h2\u003e\u003cp\u003eThe Dorman 601-909 HID lighting ballast restores proper headlight operation on specified vehicles by matching the fit and performance of the original unit. It is built for in-headlamp mounting and uses a steel housing with a silver finish for a direct replacement approach.\u003c\/p\u003e\u003cp\u003eCompatible With select BMW, Volvo, and Volkswagen applications, including BMW 740i, BMW 740iL, BMW 750iL, BMW Z8, Volvo S40, Volvo V40, and Volkswagen Derby. This part number is 601-909.\u003c\/p\u003e\u003ch2\u003eKey Features\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eDirect replacement HID ballast for exterior lighting systems\u003c\/li\u003e\n\u003cli\u003eIn-headlamp mounting position\u003c\/li\u003e\n\u003cli\u003eSteel housing with silver body color\u003c\/li\u003e\n\u003cli\u003eWater resistant construction\u003c\/li\u003e\n\u003cli\u003eWiring harness included for service replacement\u003c\/li\u003e\n\u003cli\u003eAdapter-style connector design with blade pin terminals\u003c\/li\u003e\n\u003cli\u003eElectronic component replacement type: complete control module\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eDetailed Description\u003c\/h2\u003e\u003cp\u003eThis HID ballast is designed to restore headlight function when the original ballast fails or becomes unreliable. It supports the electrical control needed for high-intensity discharge lighting and is shaped to match the original fit on specified BMW, Volvo, and Volkswagen vehicles. The Dorman 601-909 is a practical OE-style replacement for drivers addressing low-beam or headlamp output issues tied to ballast failure.\u003c\/p\u003e\u003cp\u003eCross-reference part numbers for the same application include 6N0941641 and 63128386960.\u003c\/p\u003e\u003ch2\u003eWhat It Helps Fix\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eHeadlight not turning on\u003c\/li\u003e\n\u003cli\u003eIntermittent HID lamp operation\u003c\/li\u003e\n\u003cli\u003eFlickering or unstable headlamp output\u003c\/li\u003e\n\u003cli\u003eBallast-related low-beam failure\u003c\/li\u003e\n\u003cli\u003eElectrical control module malfunction in the headlamp assembly\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eInstallation Notes and Tips\u003c\/h2\u003e\u003cp\u003eInstall at the in-headlamp location and verify connector style, terminal type, and harness routing before replacement. Confirm vehicle-specific fitment for BMW 740i, BMW 740iL, BMW 750iL, BMW Z8, Volvo S40, Volvo V40, or Volkswagen Derby before service. Because HID systems operate at high voltage, disconnect the battery and follow factory service procedures during installation.\u003c\/p\u003e\u003ch2\u003eQuality Assurance\u003c\/h2\u003e\u003cp\u003eDorman designs this ballast to match original fit and performance expectations for the listed applications. The steel housing, water-resistant construction, and direct-replacement format support dependable headlamp restoration on compatible vehicles.\u003c\/p\u003e","brand":"Dorman","offers":[{"title":"Default Title","offer_id":52778765942965,"sku":"BKKY-601-909","price":233.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0628\/1442\/1173\/files\/RB_601909_Sid.jpg?v=1783576393","url":"https:\/\/www.partcatalog.com\/products\/dorman-601-909-high-intensity-discharge-hid-lighting-ballast","provider":"PartCatalog","version":"1.0","type":"link"}