If the corrosion is beyond the point of cleaning a new connector is recommended.
Trailer electrical connector cleaner.
7 way trailer plug scrubber cleans both tractor plug and trailer receptacle male and female.
Use a air hose or set it out to air dry for a day.
Step by step how to video on how to clean and protect 4 pin and 7 pin trailer hitch connectors.
Video tech tip on how to remove the corrosion from your trailer light connector fast and easy.
White vinegar will clean the connector and leave no moisture behind so that dielectric grease 11755 will then do a good job of protecting the contacts in the connector.
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Fortunately we carry the best electrical parts cleaner for cars and trucks to give you an ultra convenient way to find a premium product.
Innovative products of america 8025 terminal connector cleaner master kit 8025 terminal connector cleaner master kit convenient set of precision machined cleaning tools for the most common utility trailer connections that clean and resize male female connectors on 7 way flat spade 6 way round and 4 5 pin terminals.
You can also pick up a spray can of electrical connector cleaner at an auto parts store.
An electrical parts cleaner is essential to have in your toolkit.
Compact speedy cleaner reduces down time by cleaning both male and female connections.
There are many brands on the market and you need a way to differentiate between the good and bad.
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Tool for scrubbing 7 way trailer plugs with built in stainless steel bristles.
Rvguard 4 flat to 7 way blade trailer adapter electrical connector with connector socket mounting bracket for rv truck car.
Removes dirt grease and corrosion from the contacts and terminals.
Spray down the connectors.
This approach will do a good job of cleaning a connector that is not too badly corroded.
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Again you need to be careful of using a liquid and shorting something so disconnect the battery first.