Pilot Valve Assembly, Series Not Applicable, Compatible with Grainger Part Number 1WD23, 1WD24, 1WD80, 1WD82, 1WD84, 1WD86, 1WD87, 1WD88, 1WD90, 4XA63, 4XA64, 4XA65, 4XA66, Product Type Pilot Valve Assembly, Compatible with Manufacturer Part Number PL15A, PL30A, Compatible with Series Not Applicable, Compatible with Brand Champion, Gardner Denver