Try these…
This one is 1 3/16" Long
http://www.superbrightleds.com/morei...d-festoon/232/
This one is 1 3/16" Long
http://www.superbrightleds.com/morei...d-festoon/238/
This one is 1 1/4" Long
http://www.superbrightleds.com/morei...d-festoon/243/
As long as the length is close they will usually work. As for the diameter you can open or close the prongs that hold them a bit to make them fit correctly. Hope this helps.
- Jacob