Alternator Freewheel Clutch fail and replaced to Valeo

recently my Alternator Freewheel Clutch failed and splatter  greese under the boonet .

after visiting the mechanic he told me i need to replace it and offered me an OEM valeo Alternator Freewheel Clutch replacment.

after doing some checking on website i come to notice that the part he used are not for my model.

im talking on a very good mechanic that ussaly know what he is doing.

could be that i need to go back to him so he replace it to the correct part for my model?

the part he used:

https://www.autodoc.co.uk/valeo/7615551

the part i had was:

litens 1000555

i couldnt find it on the a photo of it but from looking on the intenet i found that it equivalent to this one:

https://www.autodoc.co.uk/ina/2386771

what can happen if the wrong part is installed?

should i go back for a replacment or what he installed are good for my model?

also how is valeo company overall, should i insist on a better qulity part?

Car Model: Octavia 3 1.8 TSI 2016 4x4 180ps

Edited 20 January, 20206 yr by Ronaldo131