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Standard Trailer Light Kit with 25' Wire Harness

Standard Trailer Light Kit with 25' Wire Harness

Item # TL29BK
Retail:$33.25
Our Price: $30.34
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Trailer Lights
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Shipping Weight: 2 lbs
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Trailer kit with 2 stud mount tail lights; 2 stud mount amber clearance lights; license plate bracket; wire harness w/4-pole connector Great Prices for the best trailer lights from Optronics. Standard Trailer Light Kit with 25' Wire Harness part number TL29BK can be ordered online at etrailer.com or call 1-800-940-8924 for expert service.
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  • Reviews (397)
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  • Why etrailer?

Optronics Trailer Lights - TL29BK

  • Tail Lights
  • Square
  • Kit
  • Incandescent Light
  • Red and Amber
  • 5L x 4-1/2W Inch
  • Surface Mount
  • Stop/Turn/Tail
  • Side Marker
  • Side Reflector
  • Rear Reflector
  • License Plate
  • Non-Submersible Lights
  • Optronics

Trailer kit with 2 stud mount tail lights; 2 stud mount amber clearance lights; license plate bracket; wire harness w/4-pole connector


Standard Trailer Light Kit with 25' Wire Harness

This is a stud-mounted trailer light kit. The kit contains two stud-mount tail lights, two stud-mount, amber clearance marker lights, a corrosion-proof license plate bracket, and a 25' wire harness with a 4-pole trailer connector. Tail lights are parts ST8RB and ST9RB. The amber marker lights are part MC36AB. The license bracket is part LP10SB.

  • Trailer light kit containing stud-mounted lights, license bracket and wiring harness
    • Two red, stud-mount tail lights (ST8RB and ST9RB)
    • Two amber, stud-mount marker lights (MC36AB)
    • A corrosion-proof license plate bracket is included
    • A 25' wiring harness with 4-pole connector

Manufacturer Cross Reference

Light will work as an exact replacement for:

Peterson # M545


NOTE: Please check amperage rating on wiring harness, if rated for 2.1amps or less for stop/turn circuits then lighting kit will overload the harness.


Manufacturer Specifications

Kit includes two universal stud-mount tail lights, a corrosion-proof license plate bracket and two amber stud-mount marker clearance lights. Contents: (1) ST-8RB, (1) ST-9RB, (1) LP-10SB and (2) MC-36AB. Kit is equipped with a 25' wire harness.



LP29BK Trailer Light Kit, 25' Wire Harness by Optronics, Inc.

Alternate part number: LP-29BK




California residents: click here


Customer Satisfaction Score:


Customer Reviews

Standard Trailer Light Kit with 25' Wire Harness - TL29BK

Average Customer Rating:  4.7 out of 5 stars   (397 Customer Reviews)

Trailer kit with 2 stud mount tail lights; 2 stud mount amber clearance lights; license plate bracket; wire harness w/4-pole connector

by:

The product was fine, etrailer however packed heavy items with this causing one light to be smashed. Fortunately, not a part I absolutely needed so not worth the effort to RMA this.


Comments
Thank you for reaching out about this. I have sent your information to our customer service team already and they will be getting in touch with you.
-- Etrailer Expert Brooke M - 10/04/2022


by:

The connection (wire to taillight) for this trailer light kit is extremely flimsy and clearly not intended for external mounting. I ended up reordering submersible tail lights to get a more rugged connection. The wiring harness is fine and the tail lights work but the connection is flimsy.

It's very inexpensive but a few dollars more for a more rugged set of lights is probably a better buy.




by:

Whenever I need something for one of my trailers, etrailer is where I go. The website is easy to navigate, they always have what I need and the prices are hard to beat. Customer service is top notch too!




by:

Again you Guys have made life easy with your video and helpful tips!
Like your shipping packages as well. Compact with little waste of materials.
I used this product as a light system for my motorcycle carrier when I haul my TW200. With the bike on the carrier the vehicle taillights are blocked.
The TL29K light kit was what I used to solve this problem.




by:

Great price and it’s exactly as described! Customer service was outstanding in helping me choose the right product




by:

Great products at great prices sent to you quickly.




by:

Lasted maybe a week and burnt out bulb and barely touched the other and broke. I ended up going with LEDs for a little bit more and a better design for my trailer and works fine.




by:

Thanks Much, just got in from installing everything I ordered and it
all went on nicely. I rebuilt a 6' X 12' 1999 utility trailer
with treated lumber etc..........plus your parts, looks great. Thanks
again, going to do the same for another utility trailer I have, a
6' X 10, so, I'll be ordering from you later in the summer. Thanks
again




by:

The light kit was shipped promptly and nicely packaged. Everything looks to be made of very good components. I will be insalling this kit on a mobility scooter carrier and 90% of what I need was included in this kit.




by:

First off--Dealing with etrailer.com was a pleasure. The trailer light kit was just what we needed. Unfortunately our older trailer would not provide as good a ground as that required. The forward clearance lights worked fine but we had to individually ground the rear lights directly to the trailer frame next to the light mounts. Also, one of the rear lights, the one without the license plate light, had debris inside that precluded it lighting appropriately. After completely disassembling it we found wire shavings/cuttings that impeded a solid contact. Fortunately the co-owner of the trailer is an electrician and he had all the solutions. Alone I would have had to hire someone.


Comments
Lights continue to function appropriately after a year of exposure to Montana weather.
TomV - 11/04/2016


by:

The trailer kit I ordered arrived in a timely fashion and the items included are solid nice looking pieces.

I reviewed the video on installation and found the wiring and installation of the lights to be extremely simple. I rewired my entire trailer, replaced the tail lights and added the running lights (did not have these before I ordered the kit) in about two hours. Could have done it faster but I was in no rush.

I would definately recommend the company and products to anyone in need of replacing wiring and/or lights.


Comments
Product is still in place, still working beautifully. Did have to replace on of the tail lights but that was due to an issue with the tilt in the trailer and the light getting smashed on a rock -
Charles P - 01/24/2016


by:

Worked great.




by:

Can't beat the prices and product selection. I was able to get bearings, races and seals to do two hubs for what I would have paid to do one locally. Although the bearing kits were made in China, they appeared to be a better quality bearing than the China bearings I removed from the hubs. No issues with packaging or shipping. Not only can one find parts here but, lots of good info and support as well.


Comments
The trailer I installed the parts on belongs to my 93 yr old neighbor. Needless to say, it is used very little. He and his son were planning on using it and wanted me to check it out before doing so. Thats when I discovered the need for new bearings and seals. He also wanted it road worthy for any of the neighbors that might need to borrow it. However, what time it has been used, it has done exceptionally well. Very smooth and quiet and although I had a bit of difficulty getting the pigtail to plug into the connection on the truck, all lights are working for the first time in many years. Thank you for checking in on us. Have a blessed day.
Trent - 10/23/2017


by:

Standard cheap lights . They all worked but the push in wire connections on tail lights will only last one season here in Vermont with salt on winter roads


Comments
Thank you for your review. We do have the same kit without push in wire connections with part # TL5RK
Submersible, Under 80" Trailer Light Kit with 25' Wiring Harness
$35.44
.
-- Etrailer Expert Heather A - 06/28/2021


by:

Have not yet installed, but appreciate fast delivery.




by:

Quite pleased with etrailer ball hitch accessories which I am using on a spindle wheel motorcycle carrier behind a fifth-wheel trailer.....


Comments
They are all serving their intended function just fine. Thanks
Byron - 08/07/2018


by:

old boat trailer, new Kayak trailer




by:

I haven't installed the lights yet as I'm waiting to get the trailer sandblasted and painted. But, it's exactly what I needed and I'm sure they're gonna work out just fine. eTrailer has a great lighting selection to choose from including LED's.


Comments
The trailer I installed the parts on belongs to my 93 yr old neighbor. Needless to say, it is used very little. He and his son were planning on using it and wanted me to check it out before doing so. Thats when I discovered the need for new bearings and seals. He also wanted it road worthy for any of the neighbors that might need to borrow it. However, what time it has been used, it has done exceptionally well. Very smooth and quiet and although I had a bit of difficulty getting the pigtail to plug into the connection on the truck, all lights are working for the first time in many years. Thank you for checking in on us. Have a blessed day.
Trent - 10/23/2017


by:

Good looking lights. Installed easily.




by:

Light kit from etrailer installation pi ctures.




by:

Exactly what I was looking for - delivered in record time!




by:

I bought springs, mounts and Tailight kit to fix up a rusty utility trailer. I cut, weld scraped and painted for the better part of a month in spare time. The springs and mounting instructions on e trailer are excellent. Only issue/shortcoming are the tail lights. Wire just pushes in and spring loaded strip holds them. I soldered and sealed the connection with silicone. So far that salt covered roads haven't hurt it in winter. The folks at etrailer are very helpful and prices are a good value.




by:

Trailer hitch and instructions were top notch as was the wiring kit. Would do business again if the need arises.


Comments
I still like them just fine. Never an issue with either the hitch or the lights. Thanks
Chris D - 04/19/2018


by:

Nice bright lights. I replaced my old trailer lights and wiring with this light kit about 1 year ago and they are still performing great!




by:

I recently came across a trailer that I wanted to strip down and re finish. This trailer was used at a summer camp and since it was not being used on the road it did not have any previous wiring with it so I bought this wiring kit. Be advised, it does not come with any mounting brackets and assumes that the trailer is already fitted with brackets. Seemed easy to install, yet after installation, only one light is working. Could be only one small faulty part ruining the whole light. If the lights had worked first or second try after installation, I would rate this product much higher.



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397
Show More Reviews

See what our Experts say about this Optronics Trailer Lights

  • Locating a Lighting problem on a Boat Trailer with 4-Way Flat Wiring
    It sounds as if the trailer wiring is wired properly. You can splice into the brown tail light wire at any point and run it to the other side of the trailer. As long as the connector on your vehicle is wired and grounded properly the problem is with the trailer. A couple of things to look at would be the connection of the tail light mounting brackets to the trailer and the license plate bracket on the left side. If the mounting brackets are bolted to the trailer frame, remove them and...
    view full answer...
  • Is the 25 feet of Wire with the Standard Trailer Light Kit # TL29BK for Both Sides of the Trailer
    Yes, from the 4-Way flat connector on the Standard Trailer Light Kit # TL29BK there is 25 feet worth of wiring which you will split down the sides of your trailer. An installation video has been attached for you to use as a reference.
    view full answer...
  • Does the Optronics Trailer Light Kit TL29BK Include Wire Harness with 4 Pole Connector
    Yes, the Optronics Standard Trailer Light Kit # TL29BK referenced in your question includes a 25 foot wire harness with a 4-pole connector. The kit also includes two red, stud-mount tail lights, two amber marker lights and a license plate bracket. I have also attached a couple of video demonstrations on this kit for you to check out.
    view full answer...
  • Replacement Trailer Wiring Kit Recommendation for German Trailer to be Used w US Spec Kia Sorento
    Any time you can get away without using any type of adapter you are better off as that is one less thing to potentially give you issues in the future. That being said you'll want to make sure US style lighting is legal where you'll be traveling. If so the part # TL29BK would be an easy way to rewire your trailer to this style of lighting which would work well with your Sorento.
    view full answer...
  • Troubleshooting Brake Lights that Stop Working When Running Lights Turn On
    It sounds like you have a weak ground connection somewhere on your trailer. The running lights will require the most power draw on the system, so when these are on, there is not enough left to also activate the brake lights. This is typically an indication of a bad or weak ground. I recommend checking that all your ground connections are made to clean, bare metal surfaces that are free of any debris or corrosion. Check the light assemblies themselves to make sure they are grounded properly....
    view full answer...
  • Install Video For Standard Trailer Light Kit # TL29BK
    I believe you already have seen the attached diagrams that are on this page, but I think your best option will be to watch the install video I attached for the trailer taillight kit part # TL29BK which will walk you through the whole process.
    view full answer...
    Image 1 for
  • Trailer Light Kit for 9 by 4 Foot Trailer with No Wiring
    We sure do. I've linked our entire selection for you. One of our most popular kits is the Standard Trailer Light Kit # TL29BK. This kit inclues two red tail lights, 2 amber side marker lights, a license plate bracket, and 25 feet of wiring with a 4-pole trailer connector. I've linked an install video for you as well.
    view full answer...
  • Difficulty of Installing Optronics Trailer Light Kit # TL29BK On Small Trailer
    A light kit like the Optronics Trailer Light Kit, part # TL29BK, for your trailer is a fairly simple installation if you have average mechanical abilities. I am including a link to a video of the light kit being installed on a trailer and another video of a review on the light kit. These videos will help you with the installation process. Also, I am including a link to a FAQ page on trailer wiring.
    view full answer...
  • Trailer Lights Shut Off when Brakes are Pressed on a 1970 Sears Boat Trailer
    It sounds to me like you have a ground issue somewhere on your trailer causing all of the lights to shut off since you have the same issue with multiple vehicles. The brake lights apply additional load on the circuits which is usually when a ground problem will show up. First, make sure that the trailer connectors on the vehicle and trailer are clean and free of any corrosion. Corrosion can cause a short which can lead to many problems. Next, check that the ground wires from the trailer...
    view full answer...
  • Right Turn Signal Only Works when Brakes Applied on Trailer Towed by 2010 Hyundai Tucson
    This sounds like a ground issue since it is just the turn signal on the right side.. What you will want to do is make sure that the main trailer connector ground and the light grounds are all attached to clean and corrosion free bare metal surfaces. Also make sure the trailer and vehicle side connectors are clean and that the trailer wiring converter on the vehicle, unless it was a factory harness, is properly grounded to bare metal.
    view full answer...
  • Does the Standard Trailer Light Kit # TL29BK Have Enough Wire To Install on a 6x12 foot Trailer
    You should have more than enough wire, the Standard Trailer Light Kit with 25' Wire Harness # TL29BK that you referenced comes with 25 feet of wire and your trailer is only 12 feet long so you should be good. Check out the review video I attached for this kit as well.
    view full answer...
  • Instructions for Using Optronics Trailer Wiring Kit # TL29BK
    Optronics doesn't offer instructions for the # TL29BK trailer taillight kit. However, if you click the link I provided to the the trailer wiring help article, you'll see a wiring diagram showing how the kit would be used to wire a trailer. The wiring system shown in the diagram is more elaborate than what you'd have, so you'd ignore all the wire colors but the white, green, yellow and brown. The green wire feeds the right turn/brake lamp. From the front of the trailer, it would run along...
    view full answer...
    Image 1 for
  • How to Wire a Ground Wire to a Trailer Light that Grounds Through Mounting Hardware
    What you would want to do is run the white wire on your trailer's wiring to the ground screw area of the trailer light to ensure that the ground will be sufficient for the light. Then you would just run the power wire to the single wire of the light and you would be good to go.
    view full answer...
  • Troubleshooting Trailer Wiring And Brake Controller When Getting Error Codes
    This is a tough problem. We need to start with the signal you are getting to the brake controller. You said you are getting a code for a short when you step on the brakes. Since you said the tow vehicle and brake controller check out, and the trailer is connected to the tow vehicle, the problem would indicate there is a short somewhere on the trailer. This can be an exposed or cut wire between the trailer connector and the brake assemblies. There are times when bad brake magnets can also...
    view full answer...
  • Trailer Right Turn Signal Only Works when the Brake Lights are On
    This sounds like a ground issue and/or a short. Ground problems normally show up when there is more draw on a system such as when you have the running lights on and then use another function like a turn signal or brake light but can show up any time. A short could be caused by corrosion or loose or damaged wiring connections. Make sure that the vehicle side and trailer side connectors are clean and free of corrosion inside and out. The main connector grounds should be attached to clean...
    view full answer...
  • Lighting Requirements for an 8-1/2-Foot Wide Trailer for Use in California
    You came to the right place. There are very specific requirements for trailer lighting that depend on the dimensions and gross weight of the trailer. Trailers over 80-inches wide - including yours - have very specific minimum requirements for clearance and marker lights. The linked article explains these requirements in complete detail, with diagrams, and it even includes links to get you to the right items. I have also provided a link to the main product page for trailer lights. You...
    view full answer...
  • How to Wire the Lights in the Optronics Tail Light Kit # TL29BK
    Installation of the wires into the Standard Trailer Light Kit with 25 foot Wire Harness, item # TL29BK, is fairly simple, plug the corresponding wires on the # TL29BK kit into the upper (larger) holes on the back of the taillights. There are two holes for tail/brake lights and running lights. These holes are labeled. The wires should be stripped prior to insertion. The yellow wire goes on the left and is inserted into a tail/brake light port and the brown wire is inserted into a tail light...
    view full answer...
    Image 1 for
  • Troubleshooting Trailer Lights Going Out When the Brakes are Applied After Trailer Light Kit Install
    It sounds like you have a ground issue. When trailer lighting does not have a sufficient ground many different scenarios can show up, but the most prevalent is when the most amperage is applied, like tail lights on and brake pedal pressed, the lights go out. All lights must be properly grounded for proper function. When installing the standard trailer light kit, # TL29BK, the lights are grounded through the mounting studs. You need to make sure that the mounting studs are contacting the...
    view full answer...
  • Troubleshooting Trailer Wiring Light Assembly that Doesn't Work On One Side of Trailer
    Try swapping the left side light assembly with the right to see if the problem stays on the same side of the trailer or moves to the other side. If the problem stays on the same side there is a problem with the ground or the wiring of the lighting. If the problem moves then you know the issue the light assembly. You may try running a jumper wire for the ground for the bad assembly back up to the main ground of the trailer.
    view full answer...
  • Trailer Tail Light Kit with Brake Lights and Turn Signals on the Same Circuit
    Trailer tail light kit # TL29BK does work on a combined system meaning that the turn signals and brake lights are on the same circuit, which is what you want. You will not have the same issue with it. Please note that this light kit has lights that ground through the mounting studs. The mounting surface must be clean and free of corrosion and avoid putting anything in between the light and the trailer frame. If you do run into a ground problem then make sure that the vehicle side and...
    view full answer...
  • Troubleshooting Trailer Taillights that All Go Out when Headlights and Brakes are Applied
    It sounds like you might have a bad ground connection. When the headlights are on, that is when there is the most power draw on the system. Stepping on the brakes would then add more and this is when a ground problem will usually show up. The taillights usually ground through the mounting bolts on trailers. Check for a bad ground, loose connection, and dirt and corrosion. Any of those can cause this problem. Also check the light bracket connections to the trailer frame as lights can ground...
    view full answer...
  • Wiring a Trailer with the Optronics Trailer Light Kit
    First, you will need to use the 4-Way trailer side connector with the 25 foot loop of wire, included in the Optronics Trailer Tail Light Kit, item # TL29BK. Of the five wires present, the white is the ground, the yellow is the left turn/brake signal, the green is the right turn/brake signal, the yellow with brown stripe is the left running light signal, and the green wire with brown stripe is the right running light signal. You will need to run the yellow wire to the left side light, the...
    view full answer...
  • Trailer Light Kit wiring attachment, TL29BK
    You plug the corresponding wires on the TL29BK kit into the upper (larger) holes on the back of the taillights. There are two holes for tail/brake lights and running lights. These holes are labeled. The wires should be stripped prior to insertion. The lower (smaller) set of holes are there to allow removal of the wires if need be. You would stick a small round object into the lower hole and press, releasing the wire. After inserting the wires they should be routed along the indention...
    view full answer...
  • Troubleshooting a Malfunctioning Atwood Trailer Light Kit for Use with 2004 GMC Canyon Pickup
    Lights will do all sorts of funny things if they do not have a proper ground. Some will work, some will work intermittently and some may not work at all. If you did not have the lights mounted to the trailer, the TL29BK Kits use stud-grounded lights, then the lights did not have a true ground. If you want to test them again, run a wire from the mounting studs on the lights to a good ground on the truck, usually the frame, or the ground post on the truck connector (white wire). Also, with...
    view full answer...


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