Where is the fuel filter drain cock located in the HMMWV?

The correct location of the fuel filter drain cock in the HMMWV is beneath the windshield washer reservoir. This placement allows for easy access when maintenance is required, facilitating the removal of contaminants from the fuel system. Regularly draining the fuel filter is crucial to ensure that any water or debris that may accumulate within the filter is effectively removed, helping to maintain engine performance and prevent potential damage caused by impurities in the fuel.

The other options do not accurately reflect the standard design of the HMMWV. For instance, placing the drain cock under the driver’s seat would not provide the practical access needed during maintenance. The location near the fuel tank or on the engine block does not align with the vehicle’s design, as those areas are typically reserved for fuel delivery and engine functions rather than maintenance accessibility.