This damper is from the suspension & subframe section in the Rolls-Royce & Bentley parts catalogue for models built between 1965 to 2003.
This is the hydraulic levelling strut. The parts included are:
The Bentley equivalent is RH3376. A full view of all the parts related to the rear suspension strut is available here.
All our parts branded Prestige Parts have a 3 year warranty.