You can also pick up a spray can of electrical connector cleaner at an auto parts store.
Trailer electrical connector cleaner.
Removes dirt grease and corrosion from the contacts and terminals.
If the corrosion is beyond the point of cleaning a new connector is recommended.
This approach will do a good job of cleaning a connector that is not too badly corroded.
Compact speedy cleaner reduces down time by cleaning both male and female connections.
Use a air hose or set it out to air dry for a day.
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Rvguard 4 flat to 7 way blade trailer adapter electrical connector with connector socket mounting bracket for rv truck car.
Normally these tend to be exposed to a fair amount of road deb.
Step by step how to video on how to clean and protect 4 pin and 7 pin trailer hitch connectors.
Wd 40 specialist electrical contact cleaner spray electronic electrical equipment cleaner.
Again you need to be careful of using a liquid and shorting something so disconnect the battery first.
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Spray down the connectors.
Video tech tip on how to remove the corrosion from your trailer light connector fast and easy.
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There are many brands on the market and you need a way to differentiate between the good and bad.
Fortunately we carry the best electrical parts cleaner for cars and trucks to give you an ultra convenient way to find a premium product.
7 way trailer plug scrubber cleans both tractor plug and trailer receptacle male and female.
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.
An electrical parts cleaner is essential to have in your toolkit.
Tool for scrubbing 7 way trailer plugs with built in stainless steel bristles.