Cambelt tensioner pulley part

[Irvo1968]

I've just purchased a 112k fiesta mk v and am in the process of changing the timing belt as it's never been done. I ordered a dayco belt and tensioner pulley kit but the pulley in the kit isn't the same as the one I've taken off. The kit was down as being up to 2005 on all the sites I looked at but it comes with a back plate where the one I've taken off is a bolt through the middle. I've looked on a few different sites and they all give the same type as fitting my car. Any suggestions as to the part number I need so I can view an image and check it matches. I have attached an image of the one I removed.