I have a 09 Forester that has 125,000 miles on it. The car has been very low maintenance and dependable. I know that it is past time for a timing belt and I have also heard that the head gaskets have a tendency to fail on a older car. So my question is when I start on this what other things should I replace while I have it apart. I'm hoping to do it over a weekend so it would be best if i can have all of the parts in hand before i start.

 

Thank you all in advance.

Install a timing kit - Aisin kit or OEM.

Replace coolant and front diff and ATF fluid.

 

Gloyale leaves the tensioners as they rarely fail if compressed properly. Water pump and seals are rarely problematic (like they are on older models) and need not be replaced before 200k, Id leave them on that engine.