Listed as a used item so no warrenty is implied or given, however does come with paperwork proof for the tests done on this part (please see pictures) The FORD Focus Zetec Alternator is a high-quality generator designed for petrol vehicles manufactured in 2009 and is a genuine part from Ford Zetec. With a superseded part number of 3N1110300AF, it offers universal fitment and is a vital part for the cars electrical system.