Disco 2 Ace valve block solenoid parts and advice needed

Hi guys and gals. I am looking for a replacement solenoid for a RVH000032/A ace valve block.
I bought a used ace block but the old solenoids have a smaller diameter. The solenoid that I need has a metal outer case and a part number 111103 3495134 PA630GF. Please let me know if anyone can help.
Also does anyone know how the ACE ECU tests the solenoids? The working solenoids has 2 ohm impedance and the faulty solenoid also has 2 ohm impedance. Cheers Mike

You want a later one. Best place is Ebay

I tried ebay only earlier blocks

Hi all I just thought that. I would report that I managed to track down a replacement solenoid via EMMETS of Colon. This specialist breaker has access to a great range of parts and is quick and reliable.
So my ACE system is working again after spending £50 and 2 hrs work. It easy when you know how