Universal F32/F33 OE Replacement Ballast (MR044)Description OEM PART # 6311 7304 906 These modules are original equipment on specific BMW cars which can be confirmed under the "Compatibility" section. Unfortunately, headlight control modules, 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! This replacement module is designed to meet exceed all