Valve Rebuild Kit, For Use With 2A198, 4A702, Includes Piston Assembly, Plunger Assembly, Spring, Piston Ring, Gasket, Instructions Solenoid Valve Rebuild KitsReplacement parts for Dayton solenoid valves. All come with plunger assembly, gasket, spring, and instructions. See DrillSpot.com for a complete listing of kit contents.