0000868780-07-000003 DEF 14A 1 20070420 20070425 20070425 20070425 Dorman Products, Inc. 0000868780 3714 232078856 PA 1206 DEF 14A 34 000-18914 07787144 3400 E WALNUT ST COLMAR PA 18915 2159971800 3400 E WALNUT ST COLMAR PA 18915 R & B INC 19930328 DEF 14A 1 proxy.txt DORMAN PRODUCTS PROXY STATEMENT APRIL, 2007