F 450 2WD Super Duty V8-5.4L SOHC VIN L (2003)
Thermostat: Specifications
Thermostat Opening Temperatures
Starts to open - 5.4L ............................................................................................................................................................... 86.7 - 90.6°C (188 - 195°F)
Fully open - 5.4L .................................................................................................................................................................. 97.8 - 101.7°C (208 - 215°F)