This is a pair of gaskets for "Bosch type" E-47 motors. The Bosch type motor has been the standard for a long time. If the top cap on your Meyer E-47 motor is flat, these gaskets will fit. One goes under the Top Cap, and one goes under the Base Cap. They help keep water out of the motor. THEY DO NOT GO BETWEEN THE MOTOR AND GEAR PUMP!! When inspecting Motor Brushes, the top gasket usually gets torn. Keep a spare set on hand.