Identify piece - help please

[leafan]

First of all, sorry if this is in the wrong place but I couldn't see where else to post this.

Can anybody please help me to identify this piece:

https://ibb.co/m9JU1V
https://ibb.co/ftXBFq
https://ibb.co/mrZf8A

There isn't any part number on the piece but it does say "6 03" on there, which I believe just identifies useless factory info.

Thanks a lot for any help you can offer.

Any direction to a better place to post questions like this is welcome too. Thanks.

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[zux]

This.

Edited October 22, 2018 by zux

[leafan]

Thank you! massive help.