This is the plunger for the pressure switch. Each car needs 1 per Brake Pressure Switch UD18723. NOTE: Ensure you order these parts when ordering the plunger UD18721 Diaphragm XB1078R...

This washer has a number of applications: 1. It is the washer on the choke stove pipe adapters UA5802Z and UE32833 on all cars from 1955 to 1977.2. It is the sealing washer between the Shadow/ T...

This is the rubber diaphragm inside the brake pressure switch. 1966-1980  Shadow, T, Shadow II, T-2, Silver Wraith II