A forum member recently asked about part numbers for these lights, which were only offered/required in certain countries. There are 3 variations, orange/amber and clear, with different electrical connectors. The EPC implies the 124 chassis only received orange/amber, I'm not sure if this is accurate. The clear version was used on the 129, 140, and 202 chassis. Anyway, for reference:
124-820-04-21 = Orange/Amber (wide electrical connector)
124-820-08-21 = Orange/Amber (narrow electrical connector, seems to only be used on later 124 chassis)
124-820-23-21 = Clear (wide electrical connector)
Sample photos courtesy of Google. The second photo shows the #08 amber light with narrow electrical connector.

124-820-04-21 = Orange/Amber (wide electrical connector)
124-820-08-21 = Orange/Amber (narrow electrical connector, seems to only be used on later 124 chassis)
124-820-23-21 = Clear (wide electrical connector)
Sample photos courtesy of Google. The second photo shows the #08 amber light with narrow electrical connector.






