which size Belt Tensioner for C36

[redc36]

Hi everyone

i am looking to replace belt tensioner pulley on my 141k early 95 C36 since i am changing accessory belt

when i went to arizona autohaus their are offering all sorts of 72mm 80mm 90mm sizes. which one do i need?

Link to arizona autohaus (http://www.autohausaz.com/search/product.aspx?sid=1r2h2545vald352p54yvpa55&makeid=800016@Mercedes&modelid=1195501@C36&year=1995&cid=36@Belt%20Drive%20System&gid=8915@Accessory%20Belt%20Tensioner%20Pulley/Roller)

Or should i replace the whole assembly?

Thanks

[Logic]

from what i m seeing is its saying depending on the serial number of your car depends on the one you need.... find that and youll know which one to get.

[OzC36]

Red,

The information you need to determine which pulley you need is in the link you posted.

1. There is one for engine numbers up to 034966.
2. There is another for engine numbers between 034966 and 075764.
3 And there is a third one for engine numbers 075765 and onwards.

If in doubt, take a tape measure, open your hood and measure your pulley.