Why Does a Trailer Hitch Start to Rust After 3 Years

Updated 10/28/2014 | Published 10/27/2014

Question:

Is this to be expected for one of your hitches??? I purchased the hitch approx. 3 years ago and my car is garage kept.

asked by: Sharon A

Expert Reply:

Oxidation occurs on steel if subjected to the proper conditions. If the hitch was never outside, never wet, and never exposed to salt brine used to treat snowy roads then theoretically it should not rust.

What starts rust normally is the protective powder coat being scratched away which is bound to happen in the process of using the hitch. You can sand away the rust and apply some primer or paint to stop the corrosion from spreading.

If the hitch does get salt brine on it or sea water then to help prevent rust from forming it can be sprayed off with fresh water.

expert reply by: Michael H