Rear tail / brake light compatibility

I notice that a lot of models of the same age as my Speed triple 955i '03 model share certain parts. I know this is common amongst all manufacturer's. The tail light of my bike looks the same as that on similar aged Daytona 955i, Sprint, TT, speed four, ST and RS but come under several different part numbers. I know sometimes a different part number may be issues because of a colour change or updated part. My query is if the light unit off these other models is compatible with my S3 even if the part number differs?