I have had some positive movement in parts allocation of my new Royale.
The car came with a decent pair of brass radiators that were smaller than the openings in the side panels. No problem, I planned on making some sheet aluminum filler plates and use them until I had a new pair of aluminum radiators made up.
I was searching the web to see if there were some ‘off the shelf’ aftermarket radiators that could be modified (cut down, make a double pass, etc) inexpensively when I found what may be the perfect replacement. An aftermarket radiator for a FIAT Cinquecento is the correct length, thickness and about 3/4” shorter in height. I plan on using a hard rubber strip to mount and take up the space to fit snugly.
I purchased one originally just to confirm fitment and quality. Yes, they are an inexpensive Chinese part but look very well made. Only time will tell. I purchased a second once I was convinced they would work.
Anyone with an RP31 might want to keep these in mind if replacements are needed.