Other Belt On 2000 Focus Zetech Engine @@@@@@@@@@

Theres another Belt on the side of the Zetech Engine. Its very small & covered by a plastic shrowd. Has anyone replaced theirs? It seems easy to replace. my belt is missing teeth from aging and causing a small noise from it skipping. Is it a dealer order item & do I need any special tools or am I better off letting a shop do it?? :screwy:

its the timing belt...it can be a bitch to some, easy for others

moderatly difficult job for a first timer.