To find it, you'll need to:
1. Consult your owner's manual: This is the best resource. It will show you a diagram and precisely where the block heater is located for your specific model year and engine.
2. Look near the engine block: Examine the engine block closely, looking for a cord protruding from a fitting. The cord leads to the electrical outlet.
3. Check online forums: Search online forums specific to your Ford F-250 Super Duty year and engine (e.g., "2023 F-250 Powerstroke block heater location"). Owners often post pictures and detailed descriptions.
Without knowing the year and engine of your F-250, it's impossible to give a more precise location.