Edelbrock accelerator pump assembly with a Viton cup fits Performer Series 1400, 1403, 1404, 1405 and 1406 EPS carburetors and Thunder Series 1801–1806, 1825–1826 AVS carburetors. It serves as a direct replacement to restore proper accelerator pump action; owner's manual includes assembly help to assist installation. Not intended for use on other brands.
Edelbrock Accel Pump Plunger