View 0 Photos View 0 Videos 1976 John Deere 644B Hydraulic Valve Newly Listed $800 USD (USED) John Deere 644B Spools: 3 Part#: - Type: MAIN CONTROL MAIN HYDRAULIC VALVE ONLY, P/N NOT LISTED IN PARTS MANUAL ConditionUsedFits To Make(s)John DeereFits To Model(s)644BStock Number26044008 MLS Number14579762CategoryHydraulic Valves (Equipment) Last Updated9/2/2026 LocationSpencer, IA, US Sold ByVander Haag's Inc. (855) 370-___ SHOWNUMBERCall Seller Email Seller Save More Info