Valve Rebuild Kit, For Use With 3A426, 3A429, 2CZY8, 2CZY9, Includes Plunger Assembly, Gasket, O-Ring, Spring, Spanner Wrench, 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.