The 7-pin plug uses the modern standard USCAR connector, which allows easy swapping to other shapes of trailer connector. The 4-pin is a common rubber receptacle that fits a steel slot welded to the receiver.
The 7-pin plug uses the modern standard USCAR connector, which allows easy swapping to other shapes of trailer connector. The 4-pin is a common rubber receptacle that fits a steel slot welded to the receiver.
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