Rubber Boot for Switch on Raymarine Radar Pedestal

I have a 4kw Raymarine open array pedestal unit and I am looking for a replacement rubber boot to protect the On/Off switch on the back of the unit. The product code for the unit is: M92654-S and the serial number is: 0940173.

Where can I source this part? I have included a photo of the torn boot.

Thank you for your assistance.

  Radar pedestal switch boot cover.jpg (Size: 48.73 KB / Downloads: 1)