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Replacement Side Marker Light Bulb # 194

Replacement Side Marker Light Bulb # 194

Item # A194B
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Optronics Trailer Lights - A194B
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Optronics Accessories and Parts - A194B

  • Trailer Lights
  • Light Bulbs
  • Optronics
  • Clear

Replacement Bulb by Optronics, Inc.

A194B Replacement bulb part #194

  • Works with LP31, LP41, LP51 and LP81 Series trailer license plate lights

A194 Replacement Light Bulb

Alternate part number: A-194

California residents: click here

Video of Replacement Side Marker Light Bulb # 194

Videos are provided as a guide only. Refer to manufacturer installation instructions and specs for complete information.

Video Transcript for Optronics Replacement Side Marker Light Bulb Installation

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.


Customer Reviews

Replacement Side Marker Light Bulb # 194 - A194B

Average Customer Rating:  4.8 out of 5 stars   (166 Customer Reviews)


I ordered bulbs and a lens for my trailer because you never know when you're going to need them. The prices were very reasonable and the they shipped within two days. Great service and price and if I need something for my trailers, I'll be back.

by: 04/28/2022

1/2 the order came cracked or shattered..just throw loose in a soft envelope..what could go wrong?

The replacements will be coming soon.
-- Etrailer Expert Sierra K - 05/02/2022


Etrailer had a lens and bulb i wasn't able to get locally. Price is reasonable, shipping was quick! Nice doing business with them!


quick delivery. correct part and works well.


I would highly recommend this company and their products


I think everything was great the only thing was if I would and log back in to look what was taking so long I didn’t know you were out of one thing. I should’ve got an email saying this item is on back order


The trailer bulbs did not fit well and I had to find replacements at an auto part store.

These only fit specific trailer license plate lights: LP31, LP41, LP51 and LP81 Series.
-- Etrailer Expert Sierra K - 09/28/2021


My order was delivered promptly and the light housings and bulbs are perfect replacements for my trailer's needs.


We weren't impressed with the fact that the bulbs we ordered were just thrown in the envelope with no protection from the other contents or from the USPS. We ship regularly as part of our current business as well as my former business and the fact that these bulbs were intact is nothing short of a minor miracle. I had decided to wait to post a full review until we ordered the correct lenses (we ordered red by mistake, the orange ones have just arrived and we'll be installing them today or tomorrow).


Exactly what we needed and we didn't have run all over town looking for it.


Well informative people. Quick deliveries and great customer service. Have used them several times. Great results. Always


Own a Yukon camper trailer from the 1980s and was happy to be able to order and receive exterior lamp bulbs without delay. In fact, I received my order 2 days sooner than I'd expected.


ordered these bulbs to fit the red an amber side marker lights I bought. They will come in handy when more of them burn out, as they have a tendency to do.

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.
charles p - 09/11/2015


The stuff came wrapped very secure and on time great quality seems like a very good company to work with


Just what I needed at an excellent price! Thanks


I searched the web for bulbs and found several vendors. etrailer was the least expensive and had the lowest shipping charge. My stuff arrived within 5 days as promised. Excellent service and just about anything you could ever need in stock. I will look nowhere else in the future. No need.

Still shining bright.
Bill E - 06/03/2017


Exact replacement for my 07 Discovery. Quick delivery


I appreciate the professionalism and integrity of the people at etrailer. In a recent order I placed I was delayed in thoroughly checking the contents of my order. I was still well within the 60 days. When I did look through the box I discovered I had not received an item. I'm thankful the company believed me and sent me the parts I had not received. I recommend etrailer and will shop with them again.


I received excellent service on my order this item and some covers for the running lights on my RV. The parts worked perfectly and I am totally satisfied with doing business with


Have an older Storm trailer and needed to replace clearance lights and bulbs. I was surprised how easy it was to find exactly what I needed. The prices are great and delivery was very prompt. Was notified when product shipped and had a link to track package. I will definitely buy from here again.


Thank you for the service. I made an ordering mistake and got 14 light bulbs to go with 16 new marker light lenses. The lenses fit perfect. I ordered 8 red and 8 orange light lenses. What came to me was 9 orange and 7 red. I was able to save the best of the old red covers and pick up 2 light bulbs down the street. All is well. Thank You. Jeff


As a new RV owner, I was very happy to find this replacement bulb at a reasonable price. I ordered an extra to keep on hand as well. The product arrived in a timely fashion, was packaged well and fit perfectly. I will definitely use this site for research when I have needs in the future. Thank you!

This product is working perfectly. No problems!
Kathryn - 07/25/2020


Worked great and great service!9


Le produit est pareil à la photo


I found etrailer on line and what a find it was. They have everything we need to redo our modular home carriers. Excellent service and good pricing. We will continue to use etrailer as our main supplier of trailer parts. Thanks Jeff Vanatta Modular Steel Systems Bloomsburg Pa

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