Home / Repair Parts / Hydromatic Parts / Hydromatic 517290005 – KIT – FLAP VALVE – 4in. Free Shipping Hydromatic 517290005 – KIT – FLAP VALVE – 4in.$2,370.00 Hydromatic 517290005 - KIT - FLAP VALVE - 4in. quantity Add to cart SKU: 517290005 Category: Hydromatic Parts Tags: free shipping, Hydromatic Eng Parts Description Additional information Description Hydromatic 517290005 – KIT – FLAP VALVE – 4in. Additional information Weight 40 lbs