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TecNiq Contoured Eight Function Box Style Tail Light - Drivers Side
(110 reviews)
Price: $24.67
In Stock
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TecNiq Contoured Eight Function Box Style Tail Light - Drivers Side
Part Number: TN42XR
In Stock
$24.67
Retail:$41.22
You Save: 40%
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- All Info
- Reviews (110)
- Q & A (0)
- Photos
TecNiq Trailer Lights - TN42XR
- Tail Lights
- Rectangle
- LED Light
- Red
- Brake/Tail/Turn
- Marker
- 7-1/2L x 3-1/2W Inch
- Submersible Lights
- Surface Mount
- TecNiq
You're loaded up after dark and rolling out. This light handles the signaling and keeps your plate visible. It's wired in, sealed tight, and built to take the rough roads, water, and bumps along the way.
Highlights
- Eight Functions in One: Covers everything you expect from a full rear trailer light, plus a few extras.
- Plated and Legal: Built-in license light on the driver side keeps your plate visible and compliant.
- Sealed for Marine Use: Waterproof, dustproof housing is fully submersible and IP68 rated.
- Long-Term LED Performance: Bright, efficient LEDs rated for 100,000 hours of use.
- Ready for Rough Roads: Hard plastic housing and lens resist cracks, chips, and impact damage.
- DOT Compliant Design: Meets FMVSS 108 for both narrow and wide vehicle applications.
Specs
Dimensions:
- Overall dimensions: 7-1/2" long x 3-1/2" tall x 3" deep
Light Output:
- Functions: stop, tail, turn, side marker, side reflex, rear clearance, rear reflex, license
- LED lifespan: 100,000 hours
- LED color: red (with white license light)
Power Specs:
- Voltage: 9 - 14V DC
- Amperage: 0.15 - 0.21 amps (left), 0.03 - 0.04 amps (right), 0.09 - 0.12 amps (brake)
Wiring & Install:
- Mounting hardware: (2) 1/4-20 carriage bolts (sold separately)
- Compatible with PL-3 or weathertight connectors
Construction & Color:
- Housing: molded plastic
- Lens: impact-resistant polycarbonate
- Color: red lens with clear license light
Certifications:
- IP68 rated
- DOT compliant
- Meets FMVSS 108
Note:
Driver-side light only. Passenger-side light (TN62XR) and wiring sold separately.
T81-RRLT-1 Red 9LED White 2LED Red Lens 8 Function 7.5IN Contoured Box Style STT W/License and Tri-Pole Conn
Installation Details
Customer Satisfaction Score:
98% were satisfied with this product
2% of customers were not satisfied
- etrailer mistake
- Wrong item was ordered
- Did not arrive in time
Ratings & Reviews
4.4
110 reviews
by:
John
03/03/2026
Perfect fit on my 2003 ez loader boat trailer, lights are nice and bright. Just don’t try to use nyloc nuts as the carriage bolt will just spin in the plastic track.
by:
Troy
08/28/2025
The lights look really good, however, I can only install the passenger side as the driver side does not include any wires. A pigtail needs to be ordered extra for the driver's side. IF you scroll all the way down on the item page, it states it under the "NOTES". Make sure you order the $[XX] pigtail if you want to wire up the light (driver's side). I spoke with TecNiq and mentioned that it would be a good idea to include the pigtail and adjust the price, or put the "NOTE" right on top where it can be seen.
PArt #A47PB
Right Angle 3-Wire Pigtail for Optronics Trailer Lights - 3-Prong PL-3 Plug - 10" Lead
PArt #A47PB
Right Angle 3-Wire Pigtail for Optronics Trailer Lights - 3-Prong PL-3 Plug - 10" Lead
by:
Tim
09/17/2026
The taillight was delivered on time and in good condition. The taillight has been upgraded with a water tight plug. Older style the wires were epoxy molded in. I had to purchase a plug to match the new style. There was a note on the web page but it didn't catch my eye. It should be in bold print that it was a upgrade model and with a change to the electrical plug. Etrailer is a great place to purchase all your trailer needs.
by:
James
07/31/2026
I’m on my third one. The other two did not make the first trip without coming detached and becoming road debris. I taped and superglued this one to its base and it’s lasted a couple trips now. Each one appeared snapped in place but the base must have enough give to release them while hauling.
by:
Chris
06/08/2026
Only took a few minutes to install, they look good and work great so far. I'll update once I put them to use!
by:
LZ
08/11/2026
The bolts don’t fit in the back of the light as positively as they did in the Wesbar light. This just made it a little more cumbersome to install. Also I don’t know how waterproof the plug jack will be. I’ll find out soon.
by:
Mikey D
06/23/2026
Well, once I ordered the plugs that were needed to install they work great. Just have to read the fine print plugs sold separately. They fit the ex loader boat trailers.
by:
Nancy
08/30/2026
Product did not come with wiring or specific 3 prong plug which made it totally useless.
by:
Steve
10/09/2026
Exactly what I wanted. Excellent experince from customer service to delivery!
by:
William
04/24/2026
I am so happy with these lights!! They are a perfect match for my Ranger trailer! I haven't been able to find these and here they are.....at a very reasonable price! Everything as promised and even the shipping package was perfect!
by:
John
11/05/2026
Still working excellently, even in constant salt water launching.
by:
Larry
03/23/2026
lights are nice but didn't come with any mounting hardware so I had go to the hardware store to get the bolts to mount them with.
by:
Bill
04/23/2026
Worst way to attach a tail light I have ever seen ! Very difficult or near impossible to get a wrench on the bolt to tighten.
by:
Howard
09/23/2026
Easy to install.
by:
Ronald
11/16/2025
Thanks to the help from etrailer I was able to find these tail lights that would replace the Wes Bar tail lights. The routing of the wires is a little different but will work. My boat trailer is 7 years old and I was afraid that I would have to have new covers fabricated
by:
John
10/28/2025
Fits great on my trailer and almost looks like the original Wesbar light. Does not come with pigtail wiring harness or mounting bolts. They should update the description with that information. I used my old hardware and pigtail.
by:
Tyler
09/07/2026
Works great easy to install
by:
Howard
07/30/2025
The drivers side does not come with the Pigtail. A 3-prong pigtail# A47PB is sold separately. Its unfortunate the web description isn't clear about this.
I also found the pigtails don't clip in as tight as my old Wesbar lights of the same design. There doesnt seem to be a lot of options if you want the same style of lights for your ez laoder trailer.
I also found the pigtails don't clip in as tight as my old Wesbar lights of the same design. There doesnt seem to be a lot of options if you want the same style of lights for your ez laoder trailer.
by:
Kenneth
06/28/2026
Perfect fit
by:
Larry
04/01/2026
Exactly what I ordered. Packaged nicely and fast delivery
by:
Mark
04/16/2026
Nice lights
by:
George
12/21/2025
Took quite a a while to get here but the price is right and the light is correct
by:
Raymond
01/02/2026
great light, very durable.
by:
Jay
08/15/2025
I ordered both driver and passenger side tail lights. It only came with one wire harness. They told me oh well sorry about that!!
Nick S.
9/8/2025
I am sorry to hear about the initial experience with your order. I will have someone from our customer service team reach out and get this resolved for you.
by:
Z
10/08/2026
Kate F.
10/13/2026
Thanks for the pictures Z! How did the rest of the install go, and what kind of trailer was this on?
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Show More Reviews
See what our Experts say about this TecNiq Trailer Lights
- Replacement for Wesbar 281594Hey Mike! Wesbar has been gone for a while which is why you're having trouble finding their lights. I believe the TecNiq Contoured Eight Function Box Style Tail Light # TN62XR (Passenger Side) and # TN42XR (Drivers Side) share the same design and dimensions. These measure 7-1/2" long x 3-1/2" tall x 3" deep with mounting holes 2" apart on center so I would compare that to the Wesbar you have now. You will also need # TN47PV for installation. The one thing they do not have is the side...
view full answer... - Availability of Replacement LED Tail Light for EZ Loader Boat Trailer Hey Ken, welcome back! We do sell replacement LED tail lights for your EZ Loader boat trailer. A lot of their trailers use the TecNiq Contoured Eight Function Box Style Tail Light # TN42XR (Drivers Side) and # TN62XR (Passenger Side). These measure 7-1/2" long x 3-1/2" tall x 3" deep so I would check that against what you have now just to be sure. If you have a different style light let me know and I'll see what else is available. What kind of boat are you hauling?
view full answer... - Is There A Replacement Lens Available For A Wesbar 105825?Hi Jim! The Wesbar Wrap Around Lenses were discontinued quite a while ago, so unfortunately, we do not have any left in stock. I did a lot of searching around the web, but I was unable to find anywhere that still carries them. You may be able to find one at a local trailer supply store, but I would definitely call before venturing out to see. Gas is expensive these days! The best thing we can offer would be a full replacement. I included two options that would be the most similar to your...
view full answer... - Can TecNiq Contoured Taillight Replace Wesbar # 281595Hey Tien, yes the TecNiq # TN42XR is same size as the Wesbar 281595 and would easily install in place of one.
view full answer... - Could TecNiq Trailer Taillight TN42XR Fit EZ Loader Boat TrailerHey John, I would need to see a picture of the setup to see if the TecNiq part # TN42XR would fit. If the shape of the light assembly you have now looks the same as this light though it would work as this is a pretty standard design that this was modeled after.
view full answer... - Are Mounting Holes On Wesbar 271595 Tail Light The Same As The TecNiq TN42XR And TN62XR?Hello John, thanks for reaching out. Yes, the mounting holes on the TecNiq Contoured Seven Function Box Style Tail Light # TN42XR (driver side) and # TN62XR (passenger side) are exactly the same as the Wesbar 271595 tail light. They are 2" apart on center. I believe this TecNiq light was created with those Wesbar wraparound lights in mind because they were super popular back in the day and for a long time nobody else made a suitable replacement. What kind of trailer are they going on?
view full answer... - Is the TecNiq Seven Function Box Style Tail Light TN62XR a Replacement for a Wesbar 271594?No, it is not plug and play Paul but it can be. The TecNiq Contoured Seven Function Box Style Tail Light item # TN62XR passenger side and item # TN42XR driver's side use a 3-Prong PL-3 Plug like item # TN47PV. These lights measure 7-1/2" long x 3-1/2" tall x 3" deep and are commonly used to replace the old discontinued Wesbar 271594 and 271595 lights. You could easily splice the item # TN47PV harness into your existing wiring to make this a plug and play connection. The older Wesbar 271594...
view full answer... - Replacement for Wesbar 271597 and 271595 Tail LightsHi Johnny! The Wesbar 271595 and 271594 were discontinued a while ago and are no longer available. The best option at this point is to replace them with another brand with similar dimensions. The original light is approximately 7-1/2" long x 3-1/2" tall x 3-1/4" deep with mounting holes 2" apart on center. For a replacement, I recommend the TecNiq Contoured Eight Function Box Style Tail Light # TN42XR (driver side) and # TN62XR (passenger side). These measure 7-1/2" long x 3-1/2" tall...
view full answer... - Can You Mix LED and Incandescent Lights On TrailerHey Bill! If you're switching from incandescent to LED lights like the # TN42XR it is best to convert everything to LED. However, it is possible to mix them and have it work. Sometimes it works, sometimes it doesn't, there isn't a particular rhyme or reason behind it it just depends on the trailer. It looks like you already picked up this light and the passenger side # TN62XR. You can go ahead and install them and then test to see if everything works correctly. If you run into issues...
view full answer...
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Info for this part was:
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Updated by:
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Expert Research:
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Lazer S.
3/3/2026
Glad we had what you were looking for, John! And thanks for the heads up on the nyloc nuts. I hadn't heard this before and it's definitely good to know. What kind of boat are you carrying?