Motorad 4072-90 thermostat for the 2000-2010 Blue Bird All American FE 7.2L and other vehicles opens and closes with coolant temperature to hold the engine in its working range. This Motorad engine coolant thermostat is a heavy duty 190-degree unit.
A thermostat that sticks open or closed can show up as an engine that runs hot, takes a long time to warm up, or a temperature gauge that wanders. These signs alone do not prove the thermostat is at fault; a leaking hose or a weak water pump can produce them too.
The 2004-2010 Blue Bird Vision School Bus 7.2L and the 2000-2010 Ford F-650 7.2L fit it too, with one thermostat per vehicle, plus many other trucks and buses. Open the Buyer's Guide tab to check your exact model and engine.
Fit and size
Build and materials
One thermostat. A gasket or seal is required for installation but is not included, and an installation tool is not included either.
Interchange: 90-2704 · 4072-90BP
15209 · 1154223 · 2845421 · 9407290
This part cross-references / interchanges with the following part numbers:
Does the Motorad 4072-90 thermostat fit a 2004-2010 Blue Bird Vision School Bus 7.2L?
Yes, Motorad 4072-90 fits the 2004-2010 Blue Bird Vision School Bus 7.2L. For another model or engine, use the Buyer's Guide tab.
Does the Motorad 4072-90 thermostat come with a gasket or seal?
No. A gasket or seal is required for this thermostat but is not included, and an installation tool is not included either.
At what temperature does this 190-degree thermostat start to open?
Motorad 4072-90 starts to open at 87.78°C. Its copper case and wax compound respond quickly to changes in coolant temperature.
How can I tell if my heavy duty thermostat is failing?
An engine that runs hot, warms up slowly or shows a wandering temperature gauge can mean the thermostat is not opening or closing as it should. A shop can test it.
Does this heavy duty thermostat have a jiggle pin?
Yes. This heavy duty thermostat has a jiggle pin with a weep hole.
WARNING: These products can expose you to chemicals including lead and phthalates, which are known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.
