How-To Install A Fox Body Mustang Aluminum Radiator (79-93 5.0L)
An aluminum radiator is the perfect replacement radiator for your Fox Body Mustang! It is light weight, bolts right into the factory location, and is a quick and easy fix for a clogged, leaking, or damaged factory radiator.
- Jack and Jack Stands (Or a lift if you have access to one)
- Bucket or Drain Pan
- Flat Head Screwdriver
- Small Pry Bar
- Hose Clamp Pliers
- 3/8" Socket Wrench
- 11mm Socket
- 10mm Socket
To begin installation, start by loosening the radiator cap to depressurize the coolant system.
Get the car in the air by using a jack and jack stands, or a lift if you have access to one.
If you can, loosen the drain plug on the passenger side of the car and have a drain bucket ready.
Let the coolant drain from the system.
If your drain plug will not break free like ours did because a previous owner used threadlocker, locate the lower radiator hose on the driver’s side
Loosen and pull back the hose clamp on the lower radiator hose.
Slowly pull back on the radiator hose until coolant starts to come out.
Have your drain bucket or pan ready to catch the coolant.
Fully remove the lower radiator hose and allow the coolant to drain.
While the coolant is draining from the system, loosen the fan shroud to radiator bolts with a 11mm socket.
Pull the fan shroud back and loosen the upper radiator brackets with a 10mm socket.
Loosen the hose clamp on the upper radiator hose.
Carefully remove it from the radiator and have some rags ready just in case any excess coolant runs out.
Stuff a rag into the hose and position it out of your way.
Remove the overflow hose from the radiator and carefully remove the radiator from the car.
Take this time to vacuum out any debris such as grass or leaves that have accumulated over the years.
With a small pry bar or flat head screw driver, remove the 2 lower fan shroud retainers from the bottom of the factory radiator.
Remove the 2 top fan shroud retainers.
Transfer all 4 retainers to the new aluminum radiator in same locations as you took them off of the factory radiator.
If the lower retainers are tough to slide on, use the pry bar or screwdriver and hammer to tap it into place.
Carefully place the new radiator into the car and onto the lower radiator insulators.
Take this time to clean the area around the upper support brackets.
Reinstall your upper radiator support brackets
Reposition your fan shroud onto the lower retainers and then tighten the the upper fan shroud bolts.
Slide the overflow hose onto the new radiator.
Remove your rag or towel from the upper hose, slide it over the new radiator and reposition the hose clamp.
Back underneath the car, slide the lower hose onto the radiator and reposition the hose clamp.
Make sure the drain plug is closed and begin filling the new radiator with quality coolant.
Double check everything and you're all done.