DOP30-457 Kawasaki Foam Pre-Filter No. 11013-2134. This is a quality aftermarket pre-oiled foam pre-filter that measures 7 13/16" long and 2 1/8" wide. Fits FD440V and FD501V series. This is for use with the 30-457 (sold seperatly). Replaces part numbers11013-2134.