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Rain, road spray, or boat launches won’t bother this light. The housing and red lens are sonically sealed into one waterproof unit, keeping moisture out and the internals protected. Its submersible build means you can trust it in wet environments without worrying about shorting or corrosion.
This one-wire design grounds through the stainless steel mounting stud, so wiring stays simple and neat. Just bolt it on and connect power—no extra ground wire needed. The compact 2-1/16" long by 1-1/16" wide size fits tight spots easily, and the stainless steel base gives it a solid, durable feel once mounted.
Rated P2 for 90 degrees of beam coverage, this light provides strong visibility straight on. It can be used as either a clearance or side marker light when properly mounted. The incandescent bulb draws only 0.2 amps at 12.8V and can be replaced if needed, making upkeep simple over time.
A stainless steel base resists rust and wear from harsh conditions, while the snap-on red lens keeps maintenance straightforward. It’s built to work as an exact replacement for Wesbar #3231/3239 or Peterson #M151R lights, so you know the fit will be right without modification.
Ratings & Reviews
This is a replacement for Wesbar on my boat trailer. A suitable replacement except the mounting stud was a little short barely having enough length to attach the ground wire, locking washer and nut. Also—It’s also metric. Everything else on the trailer is standard.
Nice set of lights, work well and are bright. shipping was slow but not the fault of etrailer USPS is the slowest in the shipping business.
This is OEM like replacement for what was on my boat trailer.
Glad you had the product available
This is the perfect replacement light for my boat trailer. This is the first time I made a puchase from eTrailer.com. Their selection is extensive and at a nice price. For a notice it was easy for me to use their site to find the replacement lights I needed. It was received in less than 5 days at my doorstep and everything I ordered was there. All the tips and installation videos are invaluable to me. This is much more than a great place to purchase lights, it's a DIY'ers learning site.
Didn’t know your company but you did the best job possible, thanks!!!
In looking for a replacment light, etrailer had the easiest look-up and I looked at 5 or more other sites !! They had the exact replacement I was looking for Thank you etrailer for doing an excellent job
Product received is just what we ordered. Estimated delivery date was not met, but we were kept updated via the tracking system so we knew what to expect.
These were purchased for an 18’ boat trailer and were used for the three lights in the middle. We bought them because they were cheap and would match the rest of the lights on the trailer.
Charlie
7/4/2019
I am still happy with this purchase and would recommend it to future buyers.
All was swell
Great price good communication quick de livery
Found what I wanted at a great price. Shipping was fast
Worked as indicated in lising. I ordered the wrong one, though, I needed one with three bulbs so ordered that one from etrailer.com, also. It's PERFECT! Will keep etrailer in my bookmarks and use for any other future trailering needs.
Unfortunately the light didn’t work. The light did not have a separate ground wire so I couldn’t use it.
I found a clearance light at a local dealer.
Thank you for checking about the purchase.
Paul Pladson
Great light.
Item was shipped quickly and works as well as the original. I would have liked to find this in an LED but I needed it for the one bolt and one wire to match my existing setup.
The light is what it is but what most impressed me was the service and support provided by the etrailer staff. From start to finish, they were attentive and active in processing this order and providing information about it. Thank you.
Good product. great service.
The marker lights were not installed into metal so I had to run a separate ground wire attached to a ring terminal to the 1/4 post. Because of the three-quarter pine I had to get a Coupler and extend the post. I could not find ring terminals that would fit the post so I had to file out the center. Cool lights. I stayed consistent with incandescent so I would not have buy a converter for led.
Right light and quick shipping!
etrailer was fine to deal with , but shipping with the usps is horrible !!! it took two weeks from date ordered !
This clearance light was an in kind replacement for one that was damaged on my boat trailer. It has held up flawlessly since it was installed.
Gwendolyn Y.
10/2/2025
Woohoo! Love to hear it, Mark! What kind of boat do you have?
Gwendolyn Y.
10/3/2025
This marker light is what I needed. IT appears well sealed. Salt water will tell the tale in a year or so.
I hit the wrong star should be 4 stars, if the replacement light came with the connector matching the old wiring it would be 5 stars
the optronic lights are great being a boat mechanic i have installed lots of tas
i am a retired marine tech. over the years i have installed many trailer lights and these LED optronic lights are the best.the harbor freight are cheap and stop working soon after installation. these are top quality lights and they are sealed.
I found it hard to find replacement one wire, self grounding lights for my 25 year old boat trailer. etrailer had the exact item I was looking for! Quick ship & excellent communication. I will definitely shop etrailer again!
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Wis M.
3/18/2015
Still working GREAT