The trailer brakes which are activated when the tow vehicle brakes are applied. An electric brake controller synchronizes the braking of the tow vehicle with that of the trailer. A hand control also allows the driver to apply trailer brakes independently.
There are generally at least two electrical systems in RVs, namely the 12 volt, and the 110 volt. The systems are controlled through a power converter which switches from the 12 volt travelling system to the 110 volt campsite system. Some vehicles have a generator which feeds the 110 volt system; others have auxiliary batteries which feed the 12 volt system.
ENGINE OIL COOLER
A heat exchanger, similar to a small radiator, through which engine oil passes and is cooled by airflow.
A hitch that utilizes spring bars that are placed under tension to distribute a portion of the trailer's hitch weight to the tow vehicle's front axle and the trailer's axles. This hitch is also known as a weight distributing hitch.