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A194B Replacement bulb part #194
Videos are provided as a guide only. Refer to manufacturer installation instructions and specs for complete information.
Today on our trailer we're going to install, we'll replace this Side Marker light bulb from Optronics. That's Part # A194B. Along with working for Side Marker lights, it also works with LP31, LP41, LP51 and LP81 Series trailer license plate lights. As you see here our marker light on the side of our trailer is a 2-light bulb configuration. The one here on the left is working. The one here on the right is out, so we're going to go ahead and replace that light bulb. We'll just go ahead and pop our cover off and get that out of the way. We'll go ahead and turn our running light circuit off when we pull our bulb and put our new one in. So, we'll go ahead and take our old light bulb, pull it out of the socket, set that aside, bring in our new Optronics light bulb and plug it into the socket. We'll go ahead and take our lens cover, put it back into place and test our new light. As you see, a real quick replacement of that light and you're ready to hit the road. That'll do it for the replacement Side Marker light bulb, Part # A194B.
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Customer Satisfaction Score:
99% were satisfied with this product
1% of customers were not satisfied
Ratings & Reviews

Charles P.
9/11/2015
Theyre still on the utility trailer that I installed them on, working fine, and I am satisfied with the quality and function of the lights.

Bill E.
6/3/2017
Still shining bright.

Kathryn
7/25/2020
This product is working perfectly. No problems!

Sierra K.
9/28/2021
These only fit specific trailer license plate lights: LP31, LP41, LP51 and LP81 Series.
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Sierra K.
5/2/2022
The replacements will be coming soon.