2023 OWNER’S MANUAL 
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 398
Seven-Wire Connector
The tow vehicle must have a seven-wire connector in order for disc 
brakes and the trailer lights to function properly. It is important to 
connect the seven-wire connector on the trailer to the seven-wire 
connector on the tow vehicle. MasterCraft recommends applying 
dielectric grease to the terminals inside the 7-pin trailer connector 
at least once per year. This helps protect the terminals from 
corrosion, which is inherent to a non-sealed connection.
•  Determine the combined weight of the boat and all contents 
of the boat being loaded onto the trailer. The boat’s weight is 
listed in the guide to individual models section of this owner’s 
manual. (The total weight of the boat and contents may not 
safely exceed the available cargo load capacity listed on the 
trailer tongue).
Load Limit
The correct method for determining the load limit is to:
•  Locate the Gross Vehicle Weight Rating (GVWR) statement on 
the trailer tongue. (The number shown equals the total weight 
capacity for the boat and all contents that can be safely loaded 
and towed on the trailer.)