X0303 4 2011-03-04 0 0000868780 Dorman Products, Inc. DORM 0001259905 FRIGO FRED V C/O DORMAN PRODUCTS, INC. 3400 WALNUT STREET COLMAR PA 18915 0 1 0 0 Senior Vice Pres., Operations Common Stock 2011-03-04 4 M 0 2976 12.48 A 52976 D Common Stock 2011-03-04 4 M 0 20000 7.14 A 72976 D Employee Stock Option (Right to Buy) 12.48 2011-03-04 4 M 0 2976 0.00 D 2015-01-03 Common Stock 2976 17024 D Employee Stock Option (Right to Buy) 7.14 2011-03-04 4 M 0 20000 0.00 D 2013-12-18 Common Stock 20000 0 D Stock Units Common Stock 6589 6589 D The option, representing a right to purchase a total of 20,000 shares, became exercisable in five equal annual installments beginning on January 3, 2006, which was the first anniversary of the date on which the option was granted. The option became exercisable in five equal annual installments beginning on December 18, 2004, which was the first anniversary of the date on which the option was granted. Each stock unit is the economic equivalent of one share of common stock. Stock units are payable in cash upon certain events as set forth in the issuer's 401(k) Plan. The filing of this Statement shall not be construed as an admission (a) that the person filing this Statement is, for the purposes of Section 16 of the Securities Exchange Act of 1934, as amended, the beneficial owner of any equity securities covered by this Statement, or (b) that this Statement is legally required to be filed by such person. /s/ Fred V. Frigo 2011-03-07