12 Volt Replacement for Stanadyne Roosa Master Shut off Solenoid 26214R. This is a Solenoid for Roosa Master and Stanadyne DB, JDB, DC, JDC, DBO, DM2, DM4, DB2, and DB4 pumps This is a 12 volt solenoid. It also comes with a top cover Gasket and Insulators for the top cover. Also fits automotive 6.2, 6.9, 7.3, 5.7, 6.5, mechanical pumps