OE Replacement: AL 63127176068OEM Grade: The Litronic Gen 6 ballasts are original equipment on many late model Volvo, Mercedes, and BMW cars that come with factory HID headlights. Unfortunately: Headlight ballasts, like most car parts have a rated lifespan and sometimes don't even make it that long. Replacing them outside of warranty is never cheap either! This part usually runs about $400 from the dealership ouch! Good as New! This replacement ballast is designed to meet exceed