Hydraulic Coupler Description
This Hydraulic Coupler is indexed for Part Number; John Deere Logger 3554 Main Hydraulic Pump Coupling Assy 4191663; Hyd.Pump shaft to Engine Flywheel. Compare reference number 4191663 against the label on your existing John Deere component before ordering.
Before checkout, compare OEM part number 4191663, connector layout, mounting position, and machine serial number. For high-value or fitment-sensitive parts, submit the fitment form below so support can verify the match.




