421AK01621C

The 421AK01621C mobile piston pump belongs to the X20 Mobile Piston Pumps series manufactured by Vickers for hydraulic automation on construction and agricultural equipment. Its displacement is 62 cm³ per revolution, giving designers a fixed flow figure for calculating actuator speed and heat balance. Overall housing height reaches 194.056 mm (7.640 in), so the unit fits beneath low hoods and inside compact powerpacks without trimming clearance. The body extends 320.040 mm, which equals 12.600 in, providing space for the swash-plate assembly and porting while maintaining an efficient center-of-gravity along the drive line.

The nominal displacement of 3.80 in³ per revolution presents the same flow rating in imperial terms, supporting systems that specify gallons per minute. A housing width of 146.050 mm, or 5.750 in, keeps the pump narrow enough for tight mounting grids and permits side-by-side placement when multiple units are manifolded to raise total output. This lateral dimension also simplifies bracket design because common frame rails can straddle the pump without custom spacers, allowing faster field service and straightforward retrofits.