Water in rear motorhome lamps - perished gaskets/seals, Hella 23257

[GemsMiniMotorhome]

Hi all, I get water in my rear lamps, Swift/Fiat Ducato 2014 motorhome. I've had them all off and noticed all of them have perished/snapped seals (thin black rubber seals, like a large O-Ring) - I'd like to replace the seals but can only find full lamp replacements online - I was also thinking plumbers mate or loads of silicone grease might work as a replacement for them if new seals can't be sourced?

 

[jerryz]

Silicon will do it

 

[SVMC15]

My seals were not a complete circle/oval. I have put the join/gap at the bottom, this appears to work.

 

[kev54]

My seals were not a complete circle/oval. I have put the join/gap at the bottom, this appears to work.

Yes SVMC15 putting the gap at the bottom has helped