Size Hole Needed to Install 4 inch Trailer Taillight that is Flush Mounted  

The best and easiest way to install a round 4" tail light like the Miro-Flex LED Trailer Stop/Turn/Tail Light part #STL23RB on a trailer would be to first clean the edges of the holes (no sharp metal) and then spray some soapy water on the…

Once the programming is complete you would be able to remove the SuperChips part #SU1845. It only needs to be connected when programming. After that you could put it in the glove box.

The bearing kit you need for your trailer is part #BK1-100. This will include L44643 inner and outer bearings, and the seal with a 1.249 inside diameter. The kit also includes the races and a cotter pin. If you are replacing both sides of the…

I wouldn't be concerned with the gap on the ends of your cross tube. The only thing that matters is that the 4 bolts that you use to install the #DT35MR are snug and secure. Assuming you have installed these correctly, and used the proper…

The closest to 4 inch round lights we have is the Optronics LED Trailer Utility Light #BUL43CB or Trailer tail Light #STL55RB which are actually 4-5/16" diameter x 1-15/16" thick. These are designed to fit the Rubber Grommet for…

I reached out to my contact at Dexter Axle who said that your axle is rated for 3,500 lbs and it uses inner bearing #L68149, outer bearing #L44649, and the grease seal #58846. All of these can be found in the kit #BK2-100 if you are needing to…

The P-15 model information you provided for your Dexter axle does indicate its model, but you will still need to note its length and capacity before locating the correct replacement. If you are able to find a longer serial number somewhere on the…

The Optronics Trailer Light #STL43RB that you referenced can mount using rubber grommet #A45GB. But this light's overall diameter is 4-5/16-inches so this light unit would be too large to allow for grommet mounting in your trailer's…

We do indeed have a four-wire version of the Thinline LED Trailer Tail Light #STL64RB. All four-wire trailer lights are for stop, turn, tail, and backup lights, so that portion of the light is obviously going to have a clear lens (as do all four-wire…

The Peterson Piranha LED 2-1/2 Inch Round Trailer Clearance Light, 3 Diode #162R light that you referenced is certainly a bright trailer light. This 3 diode LED light will be brighter than a standard trailer light for you. I have attached a review…

To install the Sealed, 4" Round LED Trailer Stop, Turn and Tail Light, Flange Mount Light #STL42RB that you referenced you will need to drill a 4-1/2 inch hole for the light to fit and the mounting holes will be 4-1/4 inches apart on center. For…

It doesn't really have a wall thickness requirement. As long as the hole is 4-1/2 inch in diameter this will fit and work well. It is compatible with a light like #STL23RB. You will also need a wiring harness like #A47PB.