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Wesbar Low Profile Trailer Tail Light - Submersible - 8 Function - Incandescent - Driver Side

Wesbar Low Profile Trailer Tail Light - Submersible - 8 Function - Incandescent - Driver Side

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Shipping Weight: 0.95 lbs
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8" x 2-13/16" Rectangle. Waterproof, incandescent trailer tail light serves 8 functions for trailers over 80" wide: stop, turn, tail, side marker, clearance, side reflector, rear reflector, and license plate light. Stud mount. Great Prices for the best trailer lights from Wesbar. Wesbar Low Profile Trailer Tail Light - Submersible - 8 Function - Incandescent - Driver Side part number 403026 can be ordered online at or call 1-800-940-8924 for expert service.
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  • Reviews (333)
  • Q & A (0)
  • Photos

Wesbar Trailer Lights

  • Tail Lights
  • Rectangle
  • Incandescent Light
  • Red
  • 8L x 2-13/16W Inch
  • Surface Mount
  • License Plate
  • Rear Clearance
  • Rear Reflector
  • Side Marker
  • Side Reflector
  • Stop/Turn/Tail
  • Submersible Lights
  • Wesbar

8" x 2-13/16" Rectangle. Waterproof, incandescent trailer tail light serves 8 functions for trailers over 80" wide: stop, turn, tail, side marker, clearance, side reflector, rear reflector, and license plate light. Stud mount.


  • Incandescent trailer tail light serves 8 functions on trailers over 80" wide
    • Stop, turn, tail, clearance, side marker, rear and side reflectors
    • Built-in license plate light illuminates trailer license plate
  • Built-in reflex reflector removes the need for a separate reflector
  • Sealed, waterproof housing and lens unit is submersible
  • Replaceable capsule protects bulbs against corrosion and thermal shock
    • Incandescent bulbs can be easily replaced
  • Durable ABS housing and acrylic lens
  • Screw-on lens over incandescent bulb
  • Compatible with 12V DC systems
  • Stud mount with included hardware
  • 3-Wire design
  • DOT compliant


  • Configuration: driver side
    • Passenger side: 403076 (sold separately)
  • Dimensions: 8" long x 2-13/16" tall x 2-13/16" deep
  • Distance between mounting studs (center on center): 2"
    • Screw size: #8-32 x 1/2"
  • Bulb type: 1157 and 193
  • Wire gauge: 18
  • Limited 1-year warranty

Wesbar Combination Tail Light Dimensions

Note: Light is sealed but does not have a replaceable capsule (like older generations). Only need to change light bulbs (# 1157; # 193). Replacement light bulb # 1157 (A1157B) sold separately.

Sealed, Waterproof Trailer Light

The waterproof construction of this light makes it ideal for use on trailers that may be submerged, like a boat trailer. The circuit board is sealed, which means that water will not damage the diodes or circuit board.

Combination Lights for Trailers Over 80" Wide

Flatbed trailer over 80" wide with combination tail lights

If a trailer is 80" or wider at its widest point, then it requires rear clearance lights in addition to basic trailer lights. These clearance lights indicate the width of the trailer when it is viewed from the back.

To meet these requirements on a flatbed utility trailer where the bed extends past the wheels, you can install combination trailer lights that include the rear clearance function. For proper mounting, the lights must be installed at the widest points on the rear of the trailer - one on each corner.

403026 Wesbar Low Profile Trailer Combination Tail Light - Submersible - 8 Function - Incandescent - Rectangle - Driver Side - Left Hand

Item # 403026

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Customer Satisfaction Score:

Customer Reviews

Wesbar Low Profile Trailer Tail Light - Submersible - 8 Function - Incandescent - Driver Side - 403026

Average Customer Rating:  4.8 out of 5 stars   (333 Customer Reviews)

8" x 2-13/16" Rectangle. Waterproof, incandescent trailer tail light serves 8 functions for trailers over 80" wide: stop, turn, tail, side marker, clearance, side reflector, rear reflector, and license plate light. Stud mount.


I ordered a Wesbar 3504 and was shipped 6504. Didn’t think anything about it figuring it was just an update from an old number.
When I went to install it I found there is a hole in the back of the original that isn’t in the replacement. The hole is there to make room for a large bolt on the trailer.
I have already prepared the harness for my particular trailer, so I don’t think it’s returnable.

Etrailer Expert

Mike L.


Both the updated version of the Wesbar lamp, part # 403026 and its Optronics equivalent, part # ST17RB are submersible lamps, meaning that they are sealed to prevent intrusion. Unfortunately, we dont have a similar lamp that features a hole like whats shown in your photo. I believe at this point your best bet would be to take a die grinder or Dremel type rotary tool and recreate that hole in the back of the new lamps. If you decide to go that route, be sure to unplug the trailer connector before backing the boat into the water, and letting the lamp drain before plugging the trailer back in.


These lights came quickly and were exactly as advertised, I am very happy with this purchase easy installation and they work Great


Etrailer is best place for trailer parts.I own two boats and other trailer’s Wesbar lights are the best.


Very nice light. It was a very close factory replacement. All I had to do was connect the correct wires to the corresponding light circuit. Probably 45min repair time. I allowed extra for a coffee break. The first picture is the replacement. The second picture is the original light.


Main taillight burned out after about a year. I submerged the trailer perhaps 10 times during that time (Boat trailer) but I was still a bit disappointed given that it looked like things were sealed up well inside the light. On the positive side, the bulbs are replaceable so I had it fixed in 10 minutes.


I bought both the left and right side trailer lights for my Nitro trailer. They fit perfectly! These lights do not come with the the 3-way molded connector that plugs right into the trailer wiring. I purchased heat shrink splice connectors (for 22 to 18 gauge wire) along with liquid electrical tape to attach my lights. Everything works great.

Kudos to etrailer for the speedy delivery!

Henry V.


My trailer lights are still working great! No problems with them whatsoever. Thank you.


This review is about service. Yes, the replacement tail lamp assembly and quick-splice connectors were shipped on time at a fair price. BEFORE they were ordered, however, my call was promptly answered and Sal M. walked me through ordering the proper components, and helped confirm I was indeed ordering the correct replacement part. He then went on and helped diagnose the problem with the left tail-lamp and confirmed I was ordering the correct part. He also provided valuable insight into the debug of a clearance light problem. This is the second time I've purchased from ETRAILER, and each time I do so I have received outstanding service from the phone team, products that work, and fair pricing with on-time delivery.

Dave G.


All good, all working fine. Kudos to etrailer for advice and products :


Perfect fit


tail light was easy to install and fits perfectly


I have an older Ranger Boat trailer. Ranger's part dept. no long has these replacement lights available. Happy to discover that etrailer still offers these quality lights (at a great price)!

Al W.


One year later and no problems with trailer lights.Thanks again etrailer! I wish more businesses were so customer friendly.Al W.


Quality product. Didn’t fit my bracket perfectly but I made a small modification to the back and works good.


This is the third time I have purchased lights for my boat trailer over the years and the service has been outstanding. Follow up from the vendor has been quick and informative. I have always received exactly what I ordered and the quality is what I expected. Delivery has not been and issue, everything delivered in the time line promised.



Completely satisfied, the product works perfectly.



Completely satisfied, the product works perfectly.


Was exactly like the original light and fit properly with the exception that the wiring was not color coded correctly. The box stated that the white was ground, the black was tail, and red was stop and turn. The light had a white, yellow, and brown wire.


The product is just like the original part. However, the wiring instructions did not account for the color coding on the trailer wiring, black, red and white. The new lights had different color wring on each light, brown, yellow and white for the driver side and brown, green and white on the passenger side.

Etrailer Expert

Victoria B.


It is best to test the wires on your trailer to determine the function of each. For the Wesbar Low Profile Trailer Lights, the color code is: brown - running light, yellow - left turn and brake, white - ground, green - right turn and brake.


Bought these to replace old ones that got water damage. They were easy to install and work great, would recommend!!!


The Wesbar low profile lights were a direct replacement on my 1998 Nitro trailer. They were fairly easy to install, rewiring takes most of the for the installation since old wiring must be cut and spliced to new wires on lights. One thing to note; most of the wiring diagrams I found depict the trailer to have green, brown and white wires, my Nitro has red, brown and white. Not a big issue but something that made do a little more checking before I did the permanent wire splicing. Trailer lights look just like they did from the factory and work fine.


The trailer light works and looks great! Got it early too! We will definitely be ordering any other items for our boat trailer from your business.

Kevin L.


Still a great product. The lights are sealed nice and tight so no water gets in. We forgot to unplug the lights from the truck and backed the trailer into the water. No Problem! Great product.


They were not waterproof and I had to replace both lights. Warranty wasn't worth the postage.


These lights were an exact replacement for the lights on my snowmobile trailer. They work great.


Bought a pair of these trailer lights. Worked great for a year and a couple of months. Recently the passenger side brake and turn signal went out. Turns out it leaked and burned out the bulb and corroded the inner workings. See pic. It's been just over one year so the warranty has expired. The other side is still working. I had never had this opened up before so it was a factory fault.


Bought this as a replacement to a light I broke pulling my trailer through my gate. This product was half the cost of my local trailer supply stores.

I like the LED setup. The lights run great. The only warning if your thinking about buying these type of lights and are switching from conventional lights is that these LED light require a ground wire from the vehicle and on the trailer frame to work.

Could not be happier with the price or the product.


This light was a replacement for one I smashed while backing the trailer. It is an exact match for the lights on my boat trailer. Install was easy and the price was good. It comes with everything you need to install it, including the bulbs. I do have to add that I didn't use the wire nuts included. I used my own weather proof version.


Great selection of parts. Fast shipping.


You have great products, service, website, information, follow-up and most of all your people. Haven't installed the lights yet but I'm sure they will work fine. I'm replacing the older generation Wesbar lights on my 16 year old boat trailer with these new ones.

Something I've learned the hard way over the years: YOU CAN'T TRUST THE TRAILER FRAME TO BE A GOOD GROUND. Run a separate ground wire directly to each light from the vehicle connector, then the lights will just work. It will save you a lot of heartburn when you plug in the lights and never know what your gonna get.

Keep up the good work. I'll be back when I need more stuff.


Excellent product and excellent service. Replaced the lights on a boat trailer I recently bought that had similar lights but were the sealed type that did not have a provision to change the bulbs, these are the same brand and are sealed but do allow the bulbs to be replaced if needed. The web site for is excellent as is the service.

Show More Reviews

See what our Experts say about this Wesbar Trailer Lights

  • Reverse Lights On Trailer Stop Working After Switching To LED
    If the backup lights on your trailer have stopped working since you have installed LED then most likely your lights are not grounded properly or you have a loss of power on the reverse light circuit. If you test the reverse circuit wire for power before it reaches the light that should tell you if you have a connection issue or poor ground. If you get power on the reverse circuit wire just before it reaches the lights then you know you have a bad ground but if not then you most likely...
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  • Will Wesbar Trailer Taillight Part Number 403026 Replace Light on 2005 Karavan Trailer
    The correct replacement taill light you need is the part # 403026 which can easily be wired to what you have now. The white wires will match from where the white wire of your old assembly ran, the red wire will be the stop/turn circuit and the black will be the running lights.
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  • Can LED and Incandescent Lights Be Mixed on Boat Trailer
    It is certainly possible to use both LED-type and incandescent-type lighting at the same time on a trailer but I recommend you stick to one type or the other. LEDs are roughly 10-times as efficient as the incandescent type bulbs, and this means that in certain cases (depending on the number and placement of the lights within the overall trailer wiring) if you mix them you could find that some of the lights will be substantially brighter than others. The exact way the trailer is wired will...
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  • Wesbar Trailer Taillight to Replace Wesbar 3504
    Yes, the type of light that the 3504 is matches the Wesbar # 403026.
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  • Bolt Dimensions of the Wesbar Submersible Low Profile Trailer Light # 403026
    The Wesbar Submersible Low Profile Trailer Light, # 403026, uses bolts that require a 1/4 inch diameter hole to mount. The distance between the mounting holes is 4 inches on center and the bolts are 1 inch long.
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  • How to Pick out Replacement Bearings for Tracker Boat Trailer
    The best way to find the correct replacement bearings is to get the numbers stamped onto the metal of the inner and outer bearings that are currently on the trailer. If you cannot read those numbers your other option is to measure the spindle of your trailer with a micrometer to get the diameter of it where the seal, inner, and outer bearings ride. See picture. I have included a link to a video on inspecting trailer bearings that should help you when removing the old bearings.
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  • Replacement Tail Light Needed for a Kara Trailer Hauling a 2004 Boston Whaler 150 Sport
    I could not find any information on a trailer light with part # 6554-tw, however, I did some research on your trailer and other trailers for the Boston Whaler 150 Sport and it looks like they use the rectangular submersible trailer lights like the Wesbar Low Profile Trailer Light, # 403026, that you referenced. This is the left side light, for the right side light, you will want part # 403076. To determine if these lights will work with your existing light brackets without drilling new...
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  • Do Submersible Low Profile Trailer Tail Light Come in Sets
    Wesbar Submersible Low Profile Trailer Tail Light with License Plate Lights are sold separately as part # 403026 (left side) and part # 403076 (right side). Part # 403026 has a clear lens in the underside of the lamp that allows the tail light to illuminate the trailer license plate. I have also included a link to the current light kits that we offer.
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  • Replacement Wesbar 102640 Trailer Light Assemblies
    Your Wesbar 102640 trailer light features a sealed capsule so the bulb itself cannot actually be replaced. I recommend simply replacing the light assemblies with the Wesbar # 403026 and # 403076. These are the newer/current generation model lights to what you currently have. They measure 8 inches wide, 2-7/8 inches tall, and 2-9/16 inches deep. The mounting hardware is included and they do feature a sealed, waterproof construction. When needed, the bulbs on these assemblies can be easily...
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  • Replacement Trailer Taillight Assembly Recommendation for 3348 Capsule that Has Blown on Trailer
    The 3348 is a Wesbar capsule that is no longer available. What you would need instead is the part # 403026 for the left hand side and/or part # 403076 for the right hand side.
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  • Looking for Replacement Wesbar Left-Side Trailer Light # 50010
    I was not able to find a replacement light assembly based on your provided number, 50010. A check with my contact at Wesbar reveals that they no longer have this light product; it was discontinued about 15 years ago. The light was a 4 x 4-inch unit according to my contact. The link provided will take you to our main page for square trailer lights. You can use the filters at the left-hand margin to narrow the results to those items that best meet your needs.
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  • Replacement Drivers Side Trailer Tail Light to Match Passenger Wesbar
    The Wesbar Low Profile Trailer Tail Light # 403026 is the match for the drivers side to your Wesbar Low Profile Trailer Tail Light # 403076.
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  • Can the Capsule From Wesbar Light 102640 be Replaced?
    The Wesbar 102640 has a sealed capsule so it could not be replaced. The part you listed, 403356, is a replacement capsule which is no longer made, so you'll need replacement lights # 403026 and # 403076.
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  • Replacement Trailer Lights for 2003 EZ Load Boat Trailer
    I have a solution for you, but from what I was able to find out the old Wesbar lights on your trailer cannot have the bulbs replaced on them because of the clear plastic cover and red gasket you mentioned in your email. You will be able to use the Wesbar # 403026 (driver's side) and # 403076 (passenger side) to serve as a replacement. These are 8 function lights that are fully submersible to safely function on your boat trailer.
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  • Replacement Trailer Taillight Solution for Wesbar Trailer Taillights 102640/12641
    The Wesbar 102640 and 102641 light assemblies feature a sealed capsule that cannot actually be replaced. Because of that your best option is to replace the light assemblies. The current version of this light is the Wesbar # 403026 for the driver side and # 403076 for the passenger side. I have attached an installation video on this light that you can also check out.
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  • Installation Side of Wesbar Submersible Low Profile Trailer Tail Light
    The Wesbar # 403026 is the driver's side light so when looking at the trailer from the back it will be on the left side. The easiest way to tell is to look for the reflector. The side that the reflector is on should be located to the outside of the trailer for better visibility. The passenger side or right side light from the back of the trailer will be # 403076. I have linked the above mentioned products to this page for your viewing and purchasing convenience.
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  • Can Incandescent Light be Added to Trailer Wiring to Prevent Bulb Out Error
    Yes, you can add incandescent bulbs/light assemblies to a trailer like with the part # 403076 that you referenced to prevent hyperflash or bulb out sensors from popping up. The matching driver side would be the part # 403026.
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  • Driver Side Taillight that Matches Wesbar # 403076
    The driver side light that matches the Wesbar part # 403076 is the part # 403026. I attached an install video for this light for you to check out as well.
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  • Availability of Replacement Capsule for Wesbar 102640 Light
    The Wesbar 102640 light assembly features a sealed capsule that cannot actually be replaced. Because of this your best option is to simply replace the light assembly itself. The current version of this light is the Wesbar # 403026 for the Driver Side and # 403076 for the Passenger Side. I have attached an installation video on this light that you can also check out.
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  • 2000 Four Winns Trailer Taillight Replacement
    The capsules and the capsule style trailer lights are no longer available so you'd need to replace what you have with new lights that are similar like the part # 403076 for the passenger side and the part # 403026 for driver side.
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  • Replacement Wesbar Right Tail Light
    The Wesbar Submersible Low Profile Trailer Tail Light # 403076 is the right tail light as Wesbar Tail Light # 403026 is a left tail light. You will want the Wesbar Submersible Low Profile Trailer Tail Light # 403076 to replace your current right side trailer tail light. This is an exact replacement. If you are looking to replace both taillights, you will want to use the Wesbar Submersible Low Profile Tail Light # 403026 for the left side. I attached a review video of the Wesbar Tail...
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  • How To Remove Older Wesbar Submersible Low Profile Trailer Tail Light
    It sounds like you are trying to remove your older Wesbar Submersible Low Profile Trailer Tail Light from your Ranger Trail boat trailer. These lights are held on to the trailer with 2 studs on the back of the light housing. To remove the lights, you will want to remove the nut on the back of the stud that is holding the light to the trailer. With the nut off of each stud, you will be able to pull the light off of the trailer. You will also need to detach the wiring to completely uninstall...
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  • Wesbar Submersible Trailer Tail Light # 403026 Recommendation
    You are correct, the light you have is very similar to the Wesbar Submersible Low Profile Trailer Tail Light # 403026. However, it is a different light as you noticed by the lens cover screws. Dimensionally they are similar yet still slightly different. The # 403026 is slightly bigger, but depending on your trailer it might still work for your application. The dimensions are 8 inch Wide x 2-7/8 inch Tall x 2-9/16 inch Deep for this tail light. I would check your trailer to make sure this...
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  • Replacement Trailer Taillights for a 1997 Ranger Trail Trailer
    Since you said the bulb is encased that makes me think you have a light like the part # 403026 for the left side or part # 403076 for the right side. I couldn't find any pictures online of your trailer but if what you have looks different email me back and with a picture and I will find you a replacement.
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