Hi: It is easy to replace. If you follow the upper radiator hose to the engine, it will stop and be attached to the t-stat housing. Drain the radiator, remove the upper hose, remove the housing, and under it is the t-stat. Pay attention to the direction it is pointing to replace the new one in the same direction. Reverse the procedure to put it back together.
If you have problems or questions, let me know.