Danfoss / Eaton|Vickers|123AL00430A|PVM018ER05CS01AAC2811000AA0A|Hydraulic Pump

The key match points you can confirm from the part info are that it is an Eaton Vickers PVM Series open circuit piston pump, with the identifier PVM018ER05CS01AAC2811000AA0A, and supplier part number 123AL00430A. If your existing pump tag shows that same PVM code and part number family, you are looking at the same pump series and configuration.

That feature lets you mechanically limit how far the pump strokes, so you can cap the maximum flow output without having to rely solely on system controls. In practice, it gives you a reliable hard stop for displacement, which is useful when you need repeatable flow limits across a duty cycle or want to protect downstream components from seeing more flow than they're rated for. It's a single shaft seal configuration on this unit, so that's worth accounting for when you're planning your hydraulic connections and seal maintenance schedule.