Corsa ABS Pump Replacement Question

I need a replacement ABS pump for a 2011 Corsa, my mechanic took a picture of the existing one today for me to try and get a compatible second hand model.

There's a long code on it; `0 265 232 289`; most options I've found almost match but the last three digits are different, I'm wondering if this is because I've already had the pump replaced three years ago, whereas original ones from 2011 would be the different number.

Is that a viable theory? And how precise does the match need to be?

Attached image from mechanic.

Thanks in advance folks.

https://preview.redd.it/yzo4falujbie1.jpg?width=1536&format=pjpg&auto=webp&s=1ce439e4e98342b0147dfbe625ce83c9ab4e0e65