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Water exposure is no problem for this light. The sealed, waterproof housing and lens unit keep moisture out, making it safe for use on trailers that are frequently submerged. The circuit board is sealed to protect the electrical components, so you can count on steady performance whether you’re backing into the water or driving through heavy rain.
Keeping your trailer visible from every angle matters, especially for trailers over 80" wide. This red rectangular light handles seven functions—stop, turn, tail, rear clearance, rear reflex, side marker, and side reflex—so you don’t need separate lights for each job. Mounted at the corners, it helps meet lighting requirements for wider trailers and gives a clean, integrated setup.
The installation is straightforward thanks to the included stud mount setup with 2" center-to-center spacing. The 3-wire design makes hardwiring easy—just connect and go. It’s built for 12V DC systems and draws 2.3 amps on stop/turn and 0.9 amps on tail, giving you strong illumination without excessive power use.
This light uses durable plastic housing with a snap-on red lens over two replaceable incandescent bulbs (1157 and 194). The shock-proof sockets protect the bulbs from vibration damage, so they last longer even on rough roads. When a bulb eventually wears out, it’s easy to replace without changing the whole light.
Built to meet DOT standards, this passenger-side combination light delivers reliable visibility and safety on the road. Pair it with the matching driver-side model (ST57RS) for a balanced setup that looks right and performs as it should. A 3-year warranty backs its durability for long-term use.
Customer Satisfaction Score:
99% were satisfied with this product
1% of customers were not satisfied
Ratings & Reviews
Fit well on utility trailer, just had to splice wiring ends from old light onto it.
just received trailer lights today-shipping was great-packaging was great--product is not what I have experienced from etrailer in the past. These are supposed to be submersible trailer lights but the bottom is open so water will get in and corrode the sockets and the info on the package says that to replace the bulbs to unscrew the lens but there are no screws(the cover only snaps into place). The wiring comes out of the bottom of the light without the usual ability to reroute around the back without pinching the wires. These are not a good choice for a boat trailer
Heather A.
1/9/2019
The light casing is designed with holes for moisture and rain to escape. The circuit board is sealed on the inside.
Arrived very quickly after ordering. The description on the wqebsite meant I knew exactly what taillights I needed. All around good company to work with.
Solid product (replacement tail light for boat trailer). Reasonable price. "Pretty good" delivery time (considering [online] has spoiled me). The tracking information was spot on. etrailer even sent a notification email to let me know my package had been delivered. Well done! You're now my go-to source.
Dave
11/6/2022
After a year of light use no pun intended the tail light continues to working flawlessly. etrailer.com remains my go to resource.
Fit perfectly on a Cabelas 8x10 utility trailer.
Light set was a perfect fit for the broken ones I had on my boat trailer, bolt pattern and wiring matched to the existing frame and wiring.
Perfect replacement lights for my trail er.
Is a little different than what my current trailer has. I was able to adjust though since the wiring connections were different. My trailer had the plug connectors while this just had the wires to connect together with a twist nut. I also re-used the bottom (removeable) cover from my old light since it was a clear piece, and I was still trying to match the driver side light. Just a little different looking but very close.
Super easy
Great fit just like oem
It works and fits well
The tail light was delivered in short order and in perfect condition. It was an exact fit for the broken one it was replacing. Installation complete in just a few minutes. I then built hard covers so I don't smash the lights with my riding lawn mower again.
Perfect replacement for the one I broke.
Melonie was very helpful in finding the right part we needed for our trailer—thanks so much ??
I finally got around to installing the light. I must say I like how it looks. Its a better fit than the original. A few things to make it better would be higher quality hardware. Stainless would be great. At least include a flat washer. The tiny little nut wasn't a standard size 1/4-20 nut; it was smaller. So the nut and lock washer wanted to slip partially into the hole on the mounting plate. Better hardware would cost only pennies more. Another improvement would be including wire splicers and shrink tubing to make a water proof splice. Attached is a picture of the left side.
Well, its not plug-n-play. But I knew that. And since I havent even installed it yet, the real issue is the 6 emails in 2 days asking me to review it.
Perfect fit for my Karavan 5x8 utility trailer!
Fit was perfect and delivered fairly qu ick
I have an older Lowe pontoon boat trailer and accidentally broke one of the rear incandescent tail-lights. I considered replacing both with LED units but the other light worked fine and didn't leak, so I didn't see the point in cutting the original wiring to replace it. Finding a 3.25"x6" is incandescent trailer light with the proper mounting arrangement isn't easy, and none were available in Canada, so I was pleasantly surprised when I discovered the light I needed at etrailer. I wrote to see if they shipped to Canada and got a quick positive reply, so I placed the order. They provided tracking, and although it took about 10 days to arrive (I chose USPS cheaper shipping as I wasn't in a rush), and today Etrailer notified me by email to tell me the package had been delivered to my postbox. Even though it traveled through over a dozen stops to get from the southwest US to mid-eastern Canada, the sturdy box was in great shape, and the light is an exact match to the original.
Thanks to all the good folks at etrailer, and hats off to USPS and Canada Post for not bashing up the package in transit!
Brooke M.
5/27/2025
I'm so happy we could help you out! Thanks for taking a chance on us. Thank your post man for helping us look good too ;) When do you get to take the boat out on the water next?
The light was a perfect fit for my 5'x8' Karavan trailer. Instalation was easy once I swapped out the connectors from the old light, just plug and play. I'd give five stars if this light was offered with connectors that already fit these popular Home Depot trailers. But then, I've been known to be a nit picker.
Thank you so much! The gentleman that helped me find this item was very helpful and kind. We have already installed the light and things seem to be doing well. Thank you.
Our light got broken and we replaced it with this and it fit perfectly!
Marlene
5/26/2026
Its still working just fine!
Lazer S.
5/26/2026
The trailer lights arrived 2 days prior to the estimated date of delivery. The lights were exactly as advertised and installed easily.
Only light that works for my trailer. I hope the lens stays in place.
Lights fit my trailer perfectly and very easy to install. I received both lights in a timely fashion and tracking communication was excellent.
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Dean Y.
5/16/2022
After a year its still working fine! It fit like original and looks the same!