Ford Engine Block Heater-Although Ford makes a variety of heavy duty engines, the following are the most common. Ford heaters are normally trouble free to install, without serious access issues. If installing a freeze plug style block heater, make sure to clean the freeze plug bore and coat the o-ring with light grease to ensure proper sealing.
When installing the NPT (pipe thread) style heater, use a quality sealing compound on the threads (such as #2 Permatex) to prevent leaks.
Replaces 3/4" NPT threaded plug in oil cooler.
Replaces freeze plug on Right rear of engine. Point element 11 o'clock.
Replaces 2nd freeze plug from rear - right side.