Hello . I went to change my thermostat and broke off one of the three bolts. Just twisted like buttter. Aside from drilling and other methods of getting it out I just want to replace the part it and the water pump attaches to. I’ve tried a little googling but only find the water pump or thermostat there. I didn’t think it was part of water pump it looks separate. Thank you ! I’ll post a pic when I get home . It’s what the thermostat and thermostat housing mounts to .