421AK01455B

The 421AK01455B pump is produced by Vickers and belongs to the X20 Mobile Piston Pumps series, where it supplies pressurized oil for mobile hydraulic control circuits. It moves 62 cm³ per revolution, equal to 3.80 in³ per revolution, so system flow can be predicted directly from shaft speed. The housing length is 12.760 in, or 324.104 mm, a dimension used to verify that the unit fits between engine bell-housing and frame cross-members when designers allocate space for automated traction or steering drives.

The body width measures 5.750 in, or 146.050 mm, which sets the clearance needed for port fittings and helps planners avoid interference with adjacent filters or hoses. Overall height stands at 8.750 in, or 222.250 mm, establishing the vertical envelope for installation beneath hoods or deck plates while still allowing access for maintenance tooling. Together, these dimensional limits and the stated displacement enable the pump to deliver consistent flow to actuators, valves, and auxiliary implements in automated mobile machinery without exceeding available chassis volume.