Have just bought an 03 ST170 (limited number in oz) every guide I read (including the ford one) says that the timing belt kit is the same as the stock 2.0 Zebec. So I went and spent $150 and bought one.

Now everyone (on the ST Facebook page) tells me the tensioner is too "big" and won't be right. To save hundreds in garage fees and having a mechanic tell me to come back when I have the right parts I've ordered the "right" part from the UK for $198.

What is so different about the tensioners? How different can they really be? every one of them that I'c checked out for the ford is identical in the listed dimensions. 8mm bore 60mm diameter and 48mm overall depth.

Please hit me with what you know (especially of you used an aftermarket kit). There is no ford Dealer within 200kms of my city and the nearest dealer told me the part is no longer being made. I gave them the UK number and it didn't correspond to anything in Australia 2M5V6K254AA was the aussie number I was given for the exclusive tensioner.

I appreciate all your help.
Jimmy