May 24, 2026
Description
v1.4: initial release
v1.5: added clearance on bottom for grommets I failed to initially account for. Both loose/snug fits have been tested and hold the LED housing.
My horse trailer license plate light housing was broken by one of our horses, but it didn't break the LED itself. So, I modeled out a new one to hold the light rather than buying a new one. I printed it using a 0.4 nozzle, with standard layer heights and 15% gyroid infill. Mine was printed in ASA CF08, mainly for the impact, weather and UV resistance that ASA offers over other materials like ABS. However, ABS, PETG, or PCTG would also work if you want this as a temporary fix.
Here are the different Versions that I have on OnShape:
Trailer License Plate LED Looser Tolerances
To remove the light from a Tecniq trailer light, there are two tabs that hold onto the "fingers" of the LED module itself, marked with the red arrows. By lifting under the green arrows with a pair of pliers, and pushing on the LED module, you can remove it from the existing casing.
To install the LED module to the printed case, the fingers of the LED module slide under the left and right retaining clips, and the bottom of the LED module slides over the inner ribs and is retained by the small clips towards the end of the ribs. It is a tight fit overall, but I wanted the clearances to be minimal to prevent it from rattling around. You can use the looser tolerance version to make it a little easier, but i personally preferred the tighter fit.
License:
Creative Commons — Public Domain
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