Alternator fits certain Deutz 1011F and 2011 series engines with integrated cooling only.  Deutz engines with integrated cooling will be referred to as either “air-cooled” or “oil-cooled”, but can most easily be identified by the “L” in the engine model name (ex. F4L1011F, BF4L2011, etc..).  This alternator will replace Deutz part numbers:  01177327, 01182105, 01182434, 01183858, 01183905, 01179897, 01179755, 01180648, 01180640, 02929937, 01180650, 01180660, and 04103905 . If your alternator does not have one of these part number, call us with your alternator number and engine serial number and we can make sure we get the right alternator shipped out.