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Standard Trailer Light Kit with 25' Wire Harness

Standard Trailer Light Kit with 25' Wire Harness

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Optronics Trailer Lights - TL29BK
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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 Lowest 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 800-298-8924 for expert service.
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  • Reviews (303)
  • Q & A (76)
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Optronics Trailer Lights

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

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

Item # TL29BK




California residents: click here



Customer Reviews

Standard Trailer Light Kit with 25' Wire Harness - TL29BK

Average Customer Rating:  4.7 out of 5 stars   (303 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

- TL29BK
by:

Very good quality and pricing on all products with fast delivery. Used to replace old lighting on a trailer.. 527176



- TL29BK
by:

The parts I received are exactly what were purchased and arrived in great condition. I haven’t installed all the items yet, but have shopped here previously several different times and I am always happy and satisfied with the products I purchase. 562810



- TL29BK
by:

TL29BK was easy to order, was delivered in a timely manner, and was a perfect match replacement for my 2010 Singer, Utility trailer. I was very much pleased and will certainly order from etrailer again if replacement parts are needed. 540421


Comments
The Standard Trailer Light Kit with 25 Wire Harness is of very good quality and pricing and the order contained everything thing needed. I recommend this product.
FAB - 07/11/2019

57692

- TL29BK
by:

Used this kit to replace the lighting on a European bike rack to work with US hitch and wiring. On the plus side it worked perfectly the first time I tested it and with a few cable ties and an additional mending plate, a couple of dollars in Home Depot, it was pretty easy to install. On the down side, there were no instructions in the box so had to rely on the online video, and pushing the wires into the connection holes on the lights was a lot more tricky than it looked. Overall I am very pleased with the product. 656480



- TL29BK
by:

Looks nice, but no instructions whatsoever. The lights have copper holes in them, that are partially labeled, but some of the labels don't make any sense. And how can you stuff a twisted wire into a hole, it just doesn't work. How many engineers does is take to screw up a simple trailer light set? A pain in the butt, I wish I have never bought them. Will not by these sorts of things on line again, will go to local farm stores. 554970


Comments
Each lamp will have two holes that are used for connection points. On the drivers side, one hole is for the brown wire, which is the running lamps. The other is for the left turn/brake lamp, which is the yellow wire. On the passenger side, one hole is for the brown running lamp wire, the other for the green right turn/brake lamp wire. To the wires, use a small flat blade screwdriver and push it in the small hole under the larger hole where the wire s. Push the stripped wire in until it stops, then remove the screwdriver. This locks the wire into place.
-- Mike L - 08/18/2018

42530

- TL29BK
by:

Where are the instructions?? I reviewed all of this e-mail, not even a clue on how you connect to tail lights. How to you wire side lights? This looks like a pending return. 540377


Comments
Actually, we have an install video that shows how the kit is installed, simply click the provided link. Ive also linked to a trailer wiring article that should be helpful for you. As always, were available by phone at 800-298-8924 to answer any questions you might have.
-- Mike L - 07/12/2018

40845

- TL29BK
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. 605306



- TL29BK
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. 322131



- TL29BK
by:

Very nice appearance and quality. Not difficult to hook up. Process went well and the trailer now looks much better with new running lights and new wheels/ tires. Happy with the light kit. 847381



- TL29BK
by:

The electric wire fastener setup on the two rear light fixtures is very difficult to use . (Interestingly the YouTube demo video blocks the view from viewer when showing how to use fastener system). The spliced copper wire is not easy to insert fully into fastener without bending it into the hole, to get grasped by the fastener. it’s a poor design. What happened to a simple screw down.? also that area of the light is entirely open to the weather so you have to cover it with tape or whatever. Poor design. I would not recommend this product again 830779



- TL29BK
by:

Great parts 837684



- TL29BK
by:

Arrived on time and just what I needed and ordered 827820



- TL29BK
by:

Always professional, timely, and the equipment is spot on. Refer to their [online] videos for instillation. 822473



- TL29BK
by:

Easy install. Straight forward. No issues. Thanks. 822063



- TL29BK
by:

Easy mount, replaced existing lamps. Work great. 820640



- TL29BK
by:

Fast Fast Delivery, easy to use and great video(s) available. Will shop here again. 810023



- TL29BK
by:

This kit was exactly what I needed to replace the old wiring and lights on my utility trailer. Easy to hook up. 808472



- TL29BK
by:

Pricey but all the work is done for you. Plug & play. 809510



- TL29BK
by:

It went in just as the Video described. 809508



- TL29BK
by:

Looks like it will be very easy to inst all. 804680



- TL29BK
by:

The lights are easy to install and the wiring is simple and easy to hook up. I like the fixture over the tag having a clear lens on the bottom. The original fixture I replaced didn't have that. North Carolina requires a tag light on all vehicles and trailers. Salesperson Kimberly R. was very helpful with my order and spoke to me in a pleasant manner. 804012



- TL29BK
by:

Cut my stuff at a reasonable price and a reasonable time frame I will use you again thank you 802097



- TL29BK
by:

Easy to install. 801813



- TL29BK
by:

Great Customer Service and speedy delivery. Have not yet installed it but it looke like a Quality Product 799726



- TL29BK
by:

They went on easy. I replaced the light on an old trailer. it is a 16' long trailer and had plenty of wire. 799034


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Show More Reviews

Ask the Experts about this Optronics Trailer Lights

  • How To Ground Trailer Tail Lights Without a Ground Wire To a Wooden Surface
    The Standard Trailer Light Kit with 25' Wire Harness part # TL29BK as I am sure you noticed grounds via the mounting hardware therefore there is not a singular ground wire. In order to attach this light to a wooden surface you will need to run a ground wire yourself up to the trailer tongue using the mounting studs on the back with ring terminals part # DW05705-1 and wire part # 12-1-1. The other option you have is to use the Peterson LED Light Kit for Trailers part # V944 which does...
    view full answer...
  • 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...
  • Electric Brakes and Tail Light Wiring for Tandem Axle Trailer with Brakes on One Axle
    The wiring I would go with, based on your dual axle trailer with 1 axle electric brakes, is the 7-way molded connector (10 feet long) # 50-67-005. The wire is insulated which protects it well from the elements. I recommend getting a junction box like # 38656 because it makes it easier to diagnose problems when using a junction box. If you need wiring from the junction box to the brake assemblies, you can use duplex wire # 10-2-1. Protecting your wiring from corrosion and moisture is...
    view full answer...
  • Attaching Peterson Trailer Tail Light Kit to Harness 118304 on 2009 Toyota Sienna
    Yes, the Peterson trailer light kit, part 432800, or similar Optronics Trailer Light Kit, # TL29BK, has the proper connector to attach to the Wiring Harness part # 118304 that you installed on your 2009 Toyota Sienna. The side markers may have to be spliced in, but that can be done with the included Scotch-lok connectors. I have included a link to a trailer wiring FAQ page.
    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...
  • 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...
  • 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....
    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...
    view full answer...
  • How Do Multiple Trailer Light Assemblies Normally Attach to Running Light Circuit.
    A lot of times people will use a butt connector to splice in the wiring of more than one light on trailer wiring. You'd put the end of the connector on the side that runs from the trailer connector and then run two wires into the other side to go to two separate lights. For connectors we have the part # DW05745-10. You can do this a few times to get a few extra circuits ran.
    view full answer...
  • Replacement Tail Light for 1998 Jayco Travel Trailer
    Trailer manufacturers do not often maintain original parts information (or availability) for items such as lights, but we can certainly help you find a suitable replacement. You may want to just install a whole new light kit like # TL29BK or a high-efficiency LED kit # TLL9RK. This will avoid the same problem of no replacement part if the other light on your trailer should be damaged. Both kits include lights, a license plate bracket and all hardware. If you prefer to replace just...
    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...
  • Availability of an LED Trailer Tail Light Kit that Will Fit a Snowmobile Trailer
    In terms of a pre-assembled kit with everything included, the closest we have to something with tail lights that are 2-1/2 inches tall would be the Trailer Light Kit with 25 Foot Wiring Harness, # TLL16RK. The included tail lights in this kit are 2-7/8 inches tall. Another option would be to get a couple of # STL76RB lights, and a 4-Way, trailer side wishbone wiring harness, # A35W42B. I have included a link to a video showing the installation of this wiring harness for reference.
    view full answer...
  • Which Trailer Light Kit is Best for a Jet Ski Trailer
    Trailer light kit # TL29BK does not include submersible lights, so water would be able to enter the light housings. A better choice for your jet ski trailer would be a submersible light kit # TL5RK, as the lights will be sealed against water. I would recommend, however, that you unplug the trailer connector and let the bulbs cool down a bit before backing into the water, so that the cold water will not crack the bulbs. This is good practice, also, because it lets your wheel bearings...
    view full answer...
  • New Trailer Light Kit Not Working with 2 Vehicles
    Since none of the lights of the light kit # TL29BK work I'm guessing the problem is with the white ground wire. Make sure it's grounded to a clean, bare metal surface on the trailer's steel frame. If your trailer has an aluminum frame then you need to run a wire from the connector's white wire back to the mounting studs of each light in order to get a good ground. As far as wiring goes the wires are green for right turn and brake lights, yellow for left turn and brake lights and then...
    view full answer...
  • Wiring Single Wire Clearance Lights on an Enclosed Trailer
    You will need to use a circuit tester, item # 40376 if needed, to test the wires exiting the trailer to figure out the wiring configuration with the trailer hooked up to the truck and the running lights on. You will probably find that you have tail light power on one of the green wires and no power on any of the other wires. In this case you would wire the two green wires to the power wire coming from the clearance light. You would then need to wire the two white wires coming from the...
    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...
  • What Size Bulb Does Wesbar Submersible Trailer Tail Light Lens # 102641 Use
    The Wesbar Trailer replacement tail light lens, part # 102641, which you referenced, fits over 80" red rectangular tail lights # 403076 and # 403026. These lights take light bulb # A1157B, which uses 8.3 watts for tail light function and 26.9 watts for the stop/turn function. I have included a video review of these tail lights for you to check out.
    view full answer...
  • Tail Lights with Separate Amber Turn Signals for a Motorcycle Trailer
    We have lights that can have separate brake light/turn signal functions but they are large double and triple tail lights designed for RVs and would probably not be the best option for a motorcycle trailer. One possible solution is to use a set of regular tail lights such as # TL29BK, and then separate amber turn signals that are DOT approved as turn signals (the amber lights we have are DOT approved as trailer side marker or clearance lights). Although a beehive style light such as...
    view full answer...
  • Troubleshooting Brake Controller Installation on 1998 Land Rover Discovery 1
    The issue you are finding is likely due to the way you have your brake controller wired. The brake light switch is the only thing that should be connected to that red wire. The brake light wire for the trailer connection may be back-feeding into the controller the way you have it wired. I've linked a help article to properly installing a brake controller and any changes from the diagram are not recommended as they can impact correct functioning.
    view full answer...
  • Wiring Instructions for Optronics Standard Trailer Light Kit # TL29BK with 7-Way Trailer Connector
    To install the Standard Trailer Light Kit # TL29BK using the Trailer Wiring Junction Box # 38656 and the 7-Way Molded Connector # 50-67-005, you will follow these wiring instructions. Starting with the trailer tail light wiring kit: The white wire will be for ground. The brown wire is for running lights. The green wire is the right turn signal and stop lights and the yellow wire is the left turn signal and stop lights. Then from the trailer 7-way connector wiring: The green...
    view full answer...
  • How to Wire a Trailer for Tail Lights
    First, lets make sure you have all of the parts you need to wire a trailer for lights. If you have an old trailer and want to replace everything, I recommend using a kit like our Optronics Tail Light Kit, # TL29BK and our trailer wiring installation kit # HM51020. We also have an LED kit, # TLL9RK. Step 1 - The trailer connector should extend 2 - 3 feet past the tongue. Attach the ground wire directly to the tongue of the trailer using a self tapping screw # 101131802 and a ring terminal...
    view full answer...
  • Utility Trailer Light Wiring Diagram and Required Parts
    I have attached two basic trailer light wiring diagrams of utility trailers for you to check out. The difference between the two diagrams is the type of wiring harness that is being used. Diagram 1 shows a traditional wiring layout with jumper wires to provide running light functions for both sides of the trailer and Diagram 2 shows a wishbone harness. The wishbone harness has two running light wires, one for each side of the trailer. Diagram 2 is the preferred method and it is more common...
    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...
    view full answer...
  • Trailer Keeps Blowing Vehicle Running Light Fuse or Trailer Running Lights
    The problem you are having with the running lights on the trailer sounds like a short circuit somewhere. To find it the first step is to disconnect the trailer from the tow vehicle. Then use a circuit tester such as # 40376 to test the vehicle side connector while someone sits in the vehicle and goes through the light functions. If the running light fuse blows while testing the vehicle side connector then that indicates the short is on the vehicle somewhere. Check the connections for...
    view full answer...
  • 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...
  • 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...
  • 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...
    view full answer...
  • Troubleshooting Running Lights Not Working
    There are many, many different reasons why your lights could not be working. In many cases a bad ground is to blame for this type of issue, but in order to determine the specific problem you will need to use a circuit tester such as # 40376 to test the connector on your vehicle after disconnecting it from your trailer. Check the wiring going into your harness from your tail lights to see if those wires are carrying the correct signals, if not then the issue is with the vehicle wiring....
    view full answer...

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Info for this part was:

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