Dimensions of Hole in Custer Light Mounting Box # MT-BOX4 and Matching Grommet

Question:

The description says it is a 4inch hole yet for all grommets for 4inch lights such as A45GB require a 4.5inch hole. What is the actual hole size in this box? Thanks

asked by: Todd H

Expert Reply:

I went out to the warehouse and double-checked the dimensions of the Custer Light Mounting Box # MT-BOX4 and found that it does indeed have a 4" diameter.

For a grommet you can use the 4" diameter round trailer tail lights like # A45GB. Take a look at the picture I made showing the dimensions of this grommet and you will see that the interior dimension measures 4" so it will slide right into the 4" hole of the Custer light Mounting Box # MT-BOX4

expert reply by: Chris O