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Three-Wire Straight Pigtail for Optronics Weatherproof Stop/Turn/Tail

Three-Wire Straight Pigtail for Optronics Weatherproof Stop/Turn/Tail

Item # AL45PWTB
Our Price: $6.02
Accessories and Parts
Shipping Weight: 0.07 lbs
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AL45PWTB - Plugs and Pigtails Optronics Accessories and Parts
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  • Reviews (52)
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  • Videos (2)
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Optronics Accessories and Parts - AL45PWTB

  • Trailer Lights
  • Wiring
  • Plugs and Pigtails
  • Three Wire
  • Optronics
  • Straight Pigtail
  • 8 Inch Long


  • Molded plug on one end and weatherproof-tight connector on other end
  • Overall length: 8-1/16"
  • Three wire configuration:
    • Black wire: Running light
    • White wire: Ground wire
    • Red wire: Stop/turn

AL45PWTB Optronics Weatherproof Straight Pigtail

California residents: click here

Video of Three-Wire Straight Pigtail for Optronics Weatherproof Stop/Turn/Tail

Videos are provided as a guide only. Refer to manufacturer installation instructions and specs for complete information.

Video Transcript for Optronics Weatherproof Stop/Turn/Tail Light Three-Wire Straight Pigtail Installation

Hi there neighbors. Today we're going to be taking a look at Optronic's three wire pigtail to straight plug for Optronics trailer lights. Here you can see one end of our adapter, which allows us to go from our standard three wire pigtail over to our straight three wire pigtail for our Optronics lights. It's a nice easy installation because you just plug it into your factory trailer wiring. And then it adapts it for our other end here on our light.Our straight end has an upgraded connector over your traditional three wire pigtail. The big upgrade here is the weather pack that you see around it.

Your standard three wire pigtails don't have any type of weather packing. You can just use some dielectric grease to help protect it from the elements, but eventually corrosion is going to likely build up on this style of connector.With the weather packing, it keeps out any moisture from entering inside the connector. Optronic's lights typically come with grease packed in them already, so with the weather packing that's on our connector here, the likelihood of corrosion ever occurring on this light is reduced. It's going to adapt and provide all of your standard functions, so you'll have your ground wire, your taillight circuit, as well as your stop and turn circuit. Our harness adapter is going to measure 8-1/17 inches long, so it's going to extend it a little bit to make it easier to get your lights installed.You can see here our factory taillights barely come out of our connector, which can make it a little harder to get our light out if we need to get in here and clean it up or perform any service on the other wiring that's located behind it.

Now that we've used our harness to make a quick easy connection to our Optronics light, we can simply poke our wiring in, push our light into the grommet, and then any of our excess wiring here, we can use some zip ties to tie it up, keep it nice and neat.If you need some zip ties, you can pick some up here at You can see here that it provides all of your necessary lighting for your taillight circuit. You've got your taillights, your brake lights, and your right and left turn signals. The harness comes as a quantity of one, so if you need one for the other side, you'll need to pick up two. And that completes our look at Optronics three wire trailer plug to straight plug for Optronics trailer lights..

Customer Satisfaction Score:

Customer Reviews

Three-Wire Straight Pigtail for Optronics Weatherproof Stop/Turn/Tail - AL45PWTB

Average Customer Rating:  4.9 out of 5 stars   (52 Customer Reviews)


The light and adapter works great. I made a custom brake light for my motorcycle.


Remember to get these with the tail lights if you are replacing old system lights. The plug make wiring much simpler and the connection water proof. The lights that these fit work very well and look great!



Still pluggin away


I was very happy to see they made this plug, versus having to do some homemade connections with my heat shrink tape and connectors, hoping for the best. This wiring harness pigtail not only is completely waterproof on the weather end, but is the high quality rubber & plastic you would expect to find on a brand new vehicle. Wouldn't hesitate to recommend this to anyone.


Coverted from the three round pins I had, to a rear tail light with three flat pins. Both ends were female. Nice easy fix. Thanks.

Steve C.


The products I purchased from you a year ago work very well and expect they will for a long time. My lights on my trailer work perfect. Soon Im going to add more for visibility and I will get them from you. Thanks!


Great product. These pigtails are great for the LED lights And brackets I put on my utility trailer.


Install the new glow lights right when I received your package in the mail. It was easy to install all four lights in less than thirty minutes. They look great when on. Now I need to do my marker lights so they all match. Thanks.


Great lights and pigtails made installation super simple. Would definitely buy here again.


Resists water, corrosion and uv damage like a charm on my Baja bug, made the process of swapping out lighting options during my projects build a breeze! Great product, survives the harshest wet and dry environments!


Product worked great on my new 2020 Peterbilt 567 tail lights.


Thanks for asking, I really appreciate the follow-up. The item I ordered is exactly what I needed and delivered in a very timely fashion and might I add very reasonable shipping.


Made it easy to wire my LED lights. Very good and helpful product.


Was a perfect replacement for the old burned out lights on my Featherlite stock trailer!!!


I'm very happy with my purchase. It meets my expectations. Thanks. I'll be doing some more purchasing in the near future.

Juan I.


Theyre working just fine. Im very happy with the products.


Great product if you need to change style of plug in without cutting and splicing the wires


Works great, quick shipping and at a good price

Larry G.


Works great






Items were delivered before the date stated on invoice


they work great


No ploblems at all with any of the products I’ve purchased here.


Plugs worked great. Good product good seller fast shipping


Product was excellent as advertised and quick shipping.


Great Product that worked well!


Must have when upgrading. Easy to conve rt


Great product great service


Just needed them for the LED's I just r eviewed.

Show More Reviews

See what our Experts say about this Optronics Accessories and Parts

  • Adapter Plug For Optronics ONE LED Tail Light
    The plug you will want is part # AL45PWTB. This connector will work as an adapter from the # STL003RFMB light's weathertight connection point and industry standard 3-prong plugs. This part number includes one connector.
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  • How to Identify Wire Functions on Vintage Camper Trailer
    The waterproof Optronics GloLight LED Trailer Tail Light # STL101RCFMB does use a 3-wire plug # AL45PWTB for connection. The light has white, black and red wires, which are ground, tail and stop/turn leads, respectively. On your trailer you will need to test the wires with a 12V battery to see what function each one carries. Often a brown wire is for running lights (taillights) and this would connect to the center pin. Stop/turn signals should go to the pin labeled stop/turn and the ground...
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  • Does GloLight LED Trailer Tail Light Come With Two In The Package
    The GloLight LED Trailer Tail Light, part # STL101RCFMB is sold individually so there is only one light in the package. The three-wire pigtail that is designed for the tail light is part # AL45PWTB.
    view full answer...
  • Wiring Connection For GloLight LED Trailer Tail Light # STL101RCFMB
    The GloLight LED Trailer Tail Light - Stop, Tail, Turn - Submersible - Round - Clear - Weathertight Plug # STL101RCFMB does not have a 90 degree wiring connector available. It requires the Three-Wire Straight Pigtail for Optronics Weatherproof Stop/Turn/Tail # AL45PWTB which will allow you a significant amount of flexibility based on design to help with even a tight installation.
    view full answer...
  • Is the GloLight LED Trailer Tail Light # STL111RCFMB Sold In Pairs or Individually
    The GloLight LED Trailer Tail Light # STL111RCFMB that you referenced is sold individually. You would also want the pigtail harness part # AL45PWTB. I attached review videos for both products.
    view full answer...
  • Which Pigtail Is Correct For The Optronics GloLight Taillight STL101RFMB?
    The Weathertight connection on the back of the GloLight LED Trailer Tail Light # STL101RFMB is a newer design from Optronics, so the Three-Wire Straight Pigtail # AL45PWTB is an adapter for the older 3 prong design that is still pretty commonly used on older lights and other manufacturers (see part # A45PB). With that said, as you do not have a need for this adapter, you will indeed need the 3-Wire Pigtail - Weathertight Plug # A45PMB.
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  • Installation Assistance With Mounting Hole Dimensions Optronics GLOLight LED Stop/Turn/Tail Light
    To install the Optronics GLOLight LED # STL101RMB you will also need grommet # A45GB. There are two mounting options for this LED light. The first one is using Optronics grommet # A45GB and mounting directly into your 1998 Jeep Wrangler. The other option is using the Optronics Mounting Bracket # BK45BB. If you decide to use the mounting bracket, you will still need the grommet as well. If you are mounting using the grommet only the grommet opening is 4-1/2 inches. When cutting this...
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    Image 1 for
  • Optronics GLOLight LED Stop/Turn/Tail Light Availability
    We do carry the GLOLight # STL101RMB as well as several other GLOLight products. I have attached link for the GLOLight product page. This unit has a four inch diameter; for installation you will also need to order the following: Three-Wire Pigtail part # AL45PWTB; Rubber Grommet part # A45GB; and the Mounting Bracket part # BK45BB. I attached a short video of the GLOLight # STL101RB, which is the same base part as the one you reference, however, the video is demonstrating the part with...
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    Image 1 for
  • Are Optronics Stop/Turn/Tail Led Lights With Clear Lens Brighter Than Lights With Red Lens
    The 4 inch trailer lights like part # STL101RMB or part # STL101RCMB contain 21 LED diodes. The # STL101RCMB will appear to be brighter due to the fact that the other light has a red lens and the light output is diffused. Both lights have the same number of diodes and feature the stop, turn, and tail light functions. When mounting these lights the rubber grommet needed is part # A45GB. Each of these lights requires the 3-wire pigtail when installing. For a straight pigtail you can...
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  • Weathertight Wiring Plug and Stainless Steel Bracket for 4 GloLight LED Trailer Tail Light
    There are 2 different possible connectors you can use for the wiring when it comes to the GloLight LED Trailer Tail Light # STL101RMB; the 3-Wire Pigtail # A45PMB which installs using splicing, and the Three-Wire Straight Pigtail # AL45PWTB which connects to the industry standard 3-way connector for lights. Please note that if you will be using the splicing method then you want to use heat shrink butt connectors like what comes with the kit # DW05743-10 as they will be much more effective. When...
    view full answer...

Do you have a question about this Accessories and Part?

Info for this part was:

Employee Jacob T
Video Edited:
Jacob T
Employee Dustin K
Video by:
Dustin K
Employee David F
Installed by:
David F
Employee Noah M
Updated by:
Noah M

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