The o-rings found inside the upper radiator hose quick disconnect and the connection from the Y shaped house to the thermostat housing are not available from Ford as separate o-ring’s. PBH has done the homework and found the correct o-rings to seal the hoses without having to buy complete radiator hoses or the housing. Both o-rings are included in the kit and will be direct replacements for the factory units.

*this is not the thermostat oring.