https://surewayheating.co.uk/products/new-003051-stat-cl6po134-genuine-spare
It looks like the only difference is the length of the capillary tube. The one in the link is 134 mm and your item is 117 mm.
These folk may help too.
https://www.dhsspares.co.uk/category/oil-boiler-spares-uk/oil-boiler-thermostats/appliance/potterton-velaire-vitesse-valaire-pot383
Vgdse
December 2024