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When you just need a dependable clearance or side marker light that fits tight spots, this one does the job. Measuring 2-1/2" long x 1-3/16" wide x 7/8" deep, it gives you bright, consistent light from a single incandescent bulb that runs on 12V DC power. Drawing only 0.2 amps at 12.8V, it provides dependable illumination without putting extra strain on your electrical system. It’s a simple, proven setup that just works wherever you mount it.
This light is built with a sonically sealed polycarbonate housing and lens that form one solid unit. That means water can’t get inside to corrode the bulb or wiring, even when fully submerged. Whether it’s rain, road spray, or launching at the ramp, you don’t have to worry about moisture reaching the internals. The sealed body keeps it protected and shining bright trip after trip.
It’s not just about brightness—it’s about being seen from every angle that matters. This PC-rated light creates a 90-degree beam to either side of its centerline for a full 180 degrees of coverage. When properly mounted, that wide spread means it works as both a clearance light and a side marker light, making your trailer more visible from the front and sides in low-light conditions.
No complicated wiring or custom brackets needed here. The light accepts standard 2-prong plugs like the A46PB or A86PB and single-wire pigtails like the A91LW (sold separately). You can surface mount it with a base such as the A91BB or A91CB, or flush mount it with the A91GB grommet (all sold separately). The straightforward connections make replacement or new installs quick and clean without rewiring everything.
The rugged polycarbonate lens and housing handle the bumps, vibration, and weather that come with trailer life. It’s tough enough for years of use without cracking or fading, and it comes backed by a 3-year warranty for peace of mind. Once installed, it just keeps doing its job—no fuss, no maintenance needed beyond hooking up power and ground.
Customer Satisfaction Score:
98% were satisfied with this product
2% of customers were not satisfied
Ratings & Reviews
Before making my online order, I called etrailer for clarification on the parts and process of trailer light wiring. I had the pleasure of speaking with a gentleman named Arthur. He was very patient and professional. I did not know the technical name or part# of the wiring I wanted. He patiently worked with me online to find the item. Excellent service!
Arthur is an outstanding representative for your company. I appreciate his efforts and your products.
I have owned a Champion bass boat and trailer since 2001 so finding replacement parts can be challenging. We recently had a piece of retread laying on the interstate knock out a trailer light. I have been extremely happy to find etrailer.com and they have all of my trailer lights in stock and I did not have to leave the house to my nearest boat store which is a hour round trip. Also, I was not sure if they even had it in stock on a Sunday. Thank you!
This light appears to be the right size and I will see if it works on my trailer when I hook it up. The item was delivered in a timely manner and the business seems to be very polite and friendly.
etrailer did a great job and I was very happy the service. I could not find the part for my trailer on Maui so check etrailer online. Etrailer not only had the part but also recommended other items I should consider. The part was shipped the next day USPO and I received an E-mail confirming shipment. The part arrived in 4 days. My only concern was with the shipping and handling cost of $20 which I considered to be a little high for a $5.00 part. I live in Hawaii and expect shipping charges to be higher. Compared to other .Com companies like West Marine and Melton's
The service was fast and the light was delivered very quick. I installed the light and it works great.
Jess
7/24/2023
It is working great.
I ordered red and amber marker lights for my Road King boat trailer. Ordering on the etrailer.com web site was easy, and my items shipped immediately. The parts were packed well and performed exactly as specified. I received several emails notifying me of shipment progress. Doing business was a pleasure. I recommend them highly, and they will be my go-to place for all my future trailer needs!
I thought my original lights, like the A91AB on my 2007 Bass Tracker boat, were not working. So, I bought these to replace the old ones. Turned out I had bad connections with some original wire junctions and splices. Decided that while I was fixing the connections it was a probably a good time to use the A91AB lights anyway. They were an exact match and are nice and bright.
I know I can always rely on etrailer.com for all my towing, trailer, and wiring needs.
an exact part #match, install was easy :)
I managed to smash a trailer clearance light on practically my maiden trip with a new boat and trailer. After thinking I could find one around somewhere (but never did), I went searching on the web. I found the exact items (light and mounting bracket) here, making replacement a snap.
Like the movie Field of Dreams, build it and they will come. Meaning, do your job and do it right. No need to ask customer to write reviews but since you asked...
It is what it is. Overpriced Cheap plastic with nothing included to attach them... Nice work people! Just a little suggestion, if you offer reasonably priced products that are slightly above average in quality you wouldn't need your ask your customers to write reviews. But I thought I would give you my 2 cents and remember this is not a debate.
Mitchell
3/25/2023
They asked me to wright the review and now they want me to write another on a year later. I have to wonder if they thought I was going to change my mind. The lights are still CHEAP OVERPRICED PLASTIC.
ordered side marker lights for my boat trailer--E Trailer had what I needed--lights arrived in two days as shown on web site--notified me when they were shipped and followed up all the way--exceptional service all the way--will definitely use them again--product was quality pieces and price was fair--installed them and all is well--thanks E Trailer for a great job !!!!!
Exact fit for my 2007 Tracker boat trailer. Plug and play application. eTrailer shipped in a timely matter and the technical assistance was a big help. I would have bought locally but they did not have any in stock. They weren't sure how soon more would come in either. It's a small Mom & Pop outfit only so it was to be expected.
Summer of 2019 I rewired my boat trailer after 17+ years of non-use. I chose Optronics trailer lights because they were sealed and submersible.I no longer have to unplug my trailer before launching my boat. I am very pleased with the products so far.
Perfect fit thank you
Purchased an amber side marker light for my bot trailer. Installed easily and works fine.
Richard
7/7/2022
Still works well and is an exact match forthe original that came with the trailer
My product was a trailer tail light from OPTRONICS, it is a quality light and easy to install. My main review concerns E-TRAILER, they are a top quality distributor. The representatives are professional an very knowledgeable. Their follow- up is excellent. I have ordered many times from them and they are the best!!!!
Eddie S.
8/4/2015
Thanks for your follow up, working as expected. Thank you again, No problems at all.
I purchased the A91AB amber side marker along with a right angle pigtail for my cargo trailer and they were a perfect match. The pictures and website made it easy to find exactly what I needed for the job.
The price was great and shipping was quick. I will definitely be using etrailer again next time!
Mark S.
4/25/2018
The product is still working great.
Needed to replace my clearance lights on my boat trailer. Talked to Steve at etrailer about mixing LED lights with Incandescent lights and was advised that it was not a good idea. Installed all four lights in 30 minutes, tested and ready to go back fishing.
Dale
11/24/2018
The lights are still working fine. I originally replaced my burned out lights with LED lights and found that by doing so and not changing my main running light that are incandescent the lights would continue to burn out. Now that I put incandescent side lights on I seemed to have fixed the problem.
Perfect thank you
Plug n play, easy.
I purchased this light assembly and a rubber grommet to replace the right marker light on my Karavan trailer. It fit perfectly and had the proper 2 pin connector. Ordering was easy and it arrived promptly.
The product was an exact fit nothing required. Simply plugged it in to the existing wires and it clipped right into the trailer opening. Still working today! excellent!!
These running lights work great. I use them on my boat trailer which is exposed to a lot of salt water. No problems, for they are a sealed light. For the price I bought extras but haven't had to use them. It's been about a year now.
Light was an identical replacement. No issues, great service and fast service. Will buy again from etrailer if I have to again.
Dean
4/30/2019
Theyve been working great. Hardest part was finding out the proper part number from the trailer manufacturer to order the right one. The products are still working great.
I really like the staff, you guys and gals rock! I have used you twice and thank you!
Info for this part was:
At etrailer we provide the best information available about the products we sell. We take the quality of our information seriously so that you can get the right part the first time.
Albert J.
12/21/2017
The light has functioned just fine. Thank you for checking.