It is a number # 5 button and includes the gasket needed when you remove the. housing to install the new button.
855 Small Cam and Big Cam # 12 Fuel Button w/Gasket For Cummins Mechanical Pump
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855 SMALL CAM AND BIG CAM # 15 FUEL BUTTON W/GSK FOR CUMMINS MECHANICAL PUMP
855 Small Cam and Big Cam # 7 Fuel Button w/Gasket For Cummins Mechanical Pump
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Heavy Duty Water Pump For Cummins Small Cam FFC 855 3801784 3807784
