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RoyF's avatar
RoyF
Explorer
Jul 08, 2022

Cleaning your 7-pin connector: air gun brushes

I finally found the little wire brush that is small enough to get between and clean each of seven sections of a trailer's seven-pin connector, so I pass this discovery along in case I am not the only one who did not know how to find them.

It's called a air-gun brush, or a paint-sprayer brush. I found some at Harbor Freight, but in the paint-sprayer department. (Thanks to Harbor Freight for directing me to the right department.) Amazon has them, too.
  • I just went to harborfreight.com and typed in sprayer brush in the search box and the top.
    Thanks for the tip RoyF
  • RoyF wrote:
    I finally found the little wire brush that is small enough to get between and clean each of seven sections of a trailer's seven-pin connector, so I pass this discovery along in case I am not the only one who did not know how to find them.

    It's called a air-gun brush, or a paint-sprayer brush. I found some at Harbor Freight, but in the paint-sprayer department. (Thanks to Harbor Freight for directing me to the right department.) Amazon has them, too.


    Handy tip. Thankyou.
  • Maybe I have just been lucky but after I started keeping mine covered with di-letric grease about 30 years ago I have not needed to clean them
  • Great tip. I'd also look into the 7-Pin plug covers, good preventative option.