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Right Angle 3-Wire Pigtail for Optronics Trailer Lights - 3-Prong PL-3 Plug - 10" Lead

Right Angle 3-Wire Pigtail for Optronics Trailer Lights - 3-Prong PL-3 Plug - 10" Lead

Item # A47PB
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Right Angle 3-Wire Pigtail for Optronics Trailer Lights - 3-Prong PL-3 Plug - 10" Lead Right Angle Pigtail A47PB
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This 3-wire pigtail has a male plug on one end that pairs with the female connection on the back of your Optronics light. Right-angle plug allows wires to run down from light instead of straight out the back. Designed for stop/tail/turn lights. 1-800-940-8924 to order Optronics accessories and parts part number A47PB or order online at Free expert support on all Optronics products. Great prices and Fastest Shipping for Right Angle 3-Wire Pigtail for Optronics Trailer Lights - 3-Prong PL-3 Plug - 10" Lead. Accessories and Parts reviews from real customers.
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  • Reviews (447)
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Optronics Accessories and Parts - A47PB

  • Trailer Lights
  • Wiring
  • Plugs and Pigtails
  • Three Wire
  • Optronics
  • 10 Inch Long
  • Right Angle Pigtail

This 3-wire pigtail has a male plug on one end that pairs with the female connection on the back of your Optronics light. Right-angle plug allows wires to run down from light instead of straight out the back. Designed for stop/tail/turn lights.


  • Pigtail with 3-prong plug allows you to wire your Optronics light to your trailer
    • Designed specifically for use with Optronics stop/tail/turn lights, parking/turn lights, and warning lights
  • Right-angle design of plug allows wiring to run down from the light rather than straight out of the back
  • Male-pin, 3-prong PL-3 molded plastic plug connects to back of trailer light
  • 3-Wire pigtail
    • White wire for ground
    • Black wire for tail light
    • Red wire for turn signal
  • #10 Ring terminal on ground wire
  • Wire length: 10"

dimensions of pigtail

Pigtail is a direct replacement for:

  • Uni Bond PT9530
  • Truck Lite 94993
  • Grote 66843-3
  • Peterson 421-491

A47PB Optronics PL-3 Right Angle 3-Wire Pigtail for Trailer Stop, Turn, and Tail Lights

Alternate part number: A-47PB

California residents: click here

Customer Satisfaction Score:

Customer Reviews

Right Angle 3-Wire Pigtail for Optronics Trailer Lights - 3-Prong PL-3 Plug - 10" Lead - A47PB

Average Customer Rating:  4.8 out of 5 stars   (447 Customer Reviews)

This 3-wire pigtail has a male plug on one end that pairs with the female connection on the back of your Optronics light. Right-angle plug allows wires to run down from light instead of straight out the back. Designed for stop/tail/turn lights.


Definitely made wiring the lights an easier task as I completely forgot about the wiring harness until the lights showed up and had to go back and order them. Added new brake, turn lights, as well as back up lights to both sides on the boat.

Work great! Super bright and recommend the items to others. Have almost replaced all the lights on the entire trailer with your products. Thanks again!
Michael E - 08/24/2021


Just the plug I needed! Using it for my boat trailer and did not want to have to order through the dealer. Great service and speed.


The space behind the Optronics tail lights I chose for my concept Lotus T66 Europa is extremely tight. Normal connectors that bring wires straight off the back wouldn’t fit. This connector brings the wires out at a 90° angle, keeping them close to the housing. It made installation a simple matter.

Of all the lights in my BritishFrench car, these are the only ones that have given me ZERO issues. They are fully enclosed, fully sealed with rock solid connections. Made for trucks but look awesome on a 40” high concept race car.
Bruce F - 02/08/2020


packaging of taillights where loose causing them to get scuffed and scratched during shipping, quality and visibility of lights are excellent and pigtails really good, if lights would be individually packaged and taken better care of i would give 5 stars


i love the choice of products ,always easy to find and pricing is very good


Everything worked very well together. Sorry I don't have picture of lights in action attempted to upload a short video but site would not accept it as a valid file type. Just let me say guys riding behind me don't wanna be to close when it is dark out cause all they see is red!

Randall - 07/30/2017


Ordered the pigtails, lights and grommets to add additional lights to my cargo trailer I pull behind my motorcycle. These lights were easy to install, the wiring worked great with my already wired lights. The lights work great and are easily seen. Great product and would definitely buy again. This pigtail made wiring the lights quick and easy.


Well made, old look and fits. LED an improvement over old lights. Perfect for our old truck.


Price point and quality are up to par. Thanks!




Good fit and materials, although the splice into an extension to plug directly into a standard 4 pole flat trailer hitch connector, was trial and error to get the correct functions of the light.


I have purchased scores of products online over the years, but this experience was by-far the best. Your website is well organized, well informed, and easy to navigate. The purchasing process went very smoothly, and the products that I purchased were competitively priced. The shipping and delivery was faster than estimated (and frankly, faster than I expected). The shipment arrived well packed, undamaged, and the contents were exactly as advertised. Thank you for a great experience...I'll be back to purchase again!



sold the trailer but everything was working great. thanks.
JIMMY C - 12/02/2021


Part was an exact match for my trailer, etrailer delivered once again!

I really like these LED lights, Ill never buy the old style ever again. The LED lights seem to be almost indestructible. etrailer has the parts !
Dallas - 01/04/2022


Great harness made with quality wire and solid connection.


Perfect fit


This is made from good materials and should last me many years of service on my utility trailer. The life-span will depend on how much winter trailering I do as the road salt used up here in Ontario, gets into everything.


Just what I needed. The oem parking/turn signal assembly corroded and rotted.You'd think that it would last more than 20 years. On top of that the assemblies were discontinued.Found your website and searched your products. Chose these and with a little Yankee ingenuity they worked perfect.Thanks


Remove me from any future emails.


Items were delivered before the date stated on invoice


Wire pulled out of plug. Inspection showed it had not been clamped properly.


Purchased the three way sealed tail light, 3 wire pig tail, and PVC grommet for my boat trailer. Everything worked as explained in store video(these videos are excellent idea and reason I purchased from you VS other on line stores). Purchased 2 of each product so i would have spare in case tail light on other side of boat trailer failed. great quality, and price. Received in 3 days.

Tail light continues to function - no issues after 12 months.
Mike F - 10/23/2017


Easy replacement & plugged right in


What do y'all want a follow up to? If i had a nickel for every item I've ordered off of ETrailer, I wouldn't have to work for a few months... I keep coming back because the prices are fair, shipping is free and fast, and ETrailer has everything I need.

I do wish you sold trailer kits though. Being a welder, I have built a few trailers in my free time and sold them for a small side business. Why isn't there an axle, fender, brakes, springs (shackles and all hardware) tires and wheels kit? It would be nice to not have to go and click and add to cart all the multitude of items I need to build a trailer individually. Just saying...


Works great

Show More Reviews

See what our Experts say about this Optronics Accessories and Parts

  • How Do I Wire a 3 Wire Pigtail # A47PB to a Trailer that has 2 Tail Light Wires
    You will wire the black and red wires from the 3 wire pig tail to the two wires from your trailer, the red wire will be wired to the turn signal circuit and the black wire will wire to the tail light circuit. The third (white) wire from the pig tail is the ground wire and will need to be attached to a good clean ground on your trailer.
    view full answer...
  • Functions of the Three Wires on Trailer Taillight Harness A47PB
    Our three wire lights like what the harness part # A47PB is designed to fit have the white wire as ground, the black wire for tail light, and the red wire for stop/turn signal. That covers all of the standard trailer taillight functions.
    view full answer...
  • What is the Wire Gauge Used for Right Angle 3-Wire Pigtail # A47PB
    The wires for Right Angle 3-Wire Pigtail # A47PB are 18 gauge. I am not sure which oval lights you are referring to. Any that would take this pigtail do not have wires. If you can tell me a specific part number I can check the wire gauges for it as well.
    view full answer...
  • Does Right Angle 3-Wire Pigtail 3-Prong PL-3 Plug # A47PB Fit PL-3 Conenctor
    Yes, the Right Angle 3-Wire Pigtail for Optronics Trailer Lights - 3-Prong PL-3 Plug # A47PB is designed for the PL-3 female connector as this is the male side.
    view full answer...
  • What is the Wire Gauge for Right Angle 3-Wire Pigtail # A47PB
    I went out to the warehouse to check the wire gauge on Right Angle 3-Wire Pigtail # A47PB. Each of the 3 wires is 18 gauge. At 10 inches in length 18 gauge automotive-grade wire can handle a maximum of approximately 15 amps which is much more than any light that it goes with pigtail A47PB.
    view full answer...
  • Replacement 3-Wire Pigtail For Tail Light On 2011 TrailStar Boat Trailer
    We offer a couple different 3-way pigtails that are typically used for a sealed trailer tail light that may work for you. The first is a right angle 3-wire plug, part # A47PB. It has three wires, a red, black, and white. The red is a turn signal, the black is the tail signal and the white has a ring terminal on it and is designed to be the ground that needs to be attached to a clean metal surface. The 3-way plug is designed to plug into the back of a sealed light. For a straight 3-wire...
    view full answer...
  • Repelling Moisture and Corrosion Using Right Angle 3-Wire Pigtail # A47PB For Trailer Tail Lights
    Once the right angle pig tail harness, # A47PB, is plugged in it will seal up nicely but for additional protection from moisture and corrosion apply some dielectric grease, # 11755, to the pins before plugging the harness into the light. Dielectric grease is hydrophobic and will repel moisture and resist corrosion.
    view full answer...
  • Which Type of Pigtail Lead to Use with Optronics Round LED Trailer Stop/Turn/Tail Light # STL42RB
    The Round LED Trailer Stop/Turn/Tail Light # STL42RB from Optronics uses an industry-standard 3-prong plug. The two plugs you referenced, the Straight 3-Wire Pigtail # A45PB and the Right Angle 3-Wire Pigtail # A47PB, both will fit this light assembly. You choice will just be a matter of preference depending on the amount of clearance you have behind the light's mounting points. If space is tight then the right angle plug might be a better option. I suggest you apply dielectric grease,...
    view full answer...
  • What Pigtails Are Needed For Optronics Submersible LED Trailer Tail Light With Backup Lights
    You are correct that you will need two pigtails for this light. I spoke with my contact at Optronics about the Trailer tail Light, part STL211RB. One plug is to be used with a 3-wire pigtail like part # A47PB for the right angle plug or the straight 3-wire pigtail part # A45PB. The other plug will use a 2-wire pigtail like part # A45CB, which will be used for the back-up lights only.
    view full answer...
  • Do You Carry the Wire Pigtails and Grommets Needed to Install Optronics 4 Inch LED Light STL53AB
    The grommet for the Sealed 4 Inch LED Light you were looking at is part # A45GB. The outer diameter is 5-3/8 inches. It is designed to use used in a 4-1/2 inch cutout or hole. The 3 wire pigtail is either part # A47PB or part # A45PB depending on style needed.
    view full answer...
  • Availability of the Trailer Taillight STL72RB with 90 Degree Pigtail
    It sounds like you have the # STL72RB, but then also have the 90 degree harness # A47PB instead of the straight harness part # A45PB.
    view full answer...
  • Replacement Optronics 5-1/2 Inch Diameter Round LED Trailer Light
    I think the part number you have on your trailer is part # STL42RB. The other numbers may be a serial number or another number for a mold or something else. The best way to see if our light is the exact replacement is to check the specs and the mounting of the # STL42RB. The light has 10 LEDs and uses a 3-prong plug like part # A47PB for the right angle plug or part # A45PB for the straight plug. The dimensions of this light are 5-1/2 inch diameter and 1-15/16 inches deep. The mounting...
    view full answer...
  • Will the LED Tail lights and the 3 Wire Pigtail Fit on a 6 X 12 Foot Haulmark Enclosed Trailer
    The Sealed, 6-1/2 inch Oval LED Trailer Stop, Turn and Tail Light, will fit in the factory grommet if the original light measures 6-1/2 inches overall width and 2-1/4 inches overall height. This is the standard size of most of the lights installed on enclosed trailers. I have seen some lights that are 7 inches overall width and if your original is this size then the 6-1/2 inch light will not fit in the original grommet. At this time we do not carry a 7 inch oval taillight The 3 wire pigtail,...
    view full answer...
  • Replacement Option For Glo-Brite 9891-88 LED Trailer Tail Light
    We do have an option for you to replace your Glo-Brite 9891-88 LED trailer tail light. Based on my research this is a 4 inch round LED tail light that uses a 3-wire plug and fits in a 5-1/2 inch grommet. We have exactly that with the following light: - Optronics LED Trailer Tail Light # STL42RB This comes with the grommet, which has mounting holes separated on center by 4-1/4 inches, so the only other thing you will need is the 3-wire pigtail, and you can choose from a standard or right...
    view full answer...
  • How to Wire the Sealed 4 Inch Round Trailer Stop Turn and Tail Light
    The sealed, 4 inch round trailer stop, turn and tail light, # ST48RB, is designed to be used with the straight or right angle 3-Wire Pigtail, # A45PB or # A47PB. The white wire with the ring terminal on the end of it is ground, the red wire is for the brake and turn signal functions, and the black wire is for the tail light function.
    view full answer...
  • Mounting of Optronics 4 Inch Round Tail Light
    The Optronics Tail Light # STL43RBX does not need a bracket for mounting. It has a built in flange and includes a rubber grommet. The light can be connected using a 3-wire pigtail, # A45PB, or # A47PB for a right angle.
    view full answer...
  • Diameter of Mounting Holes for GloLight LED Trailer Tail Light
    The GloLight LED Trailer Tail Light # STL111RFB has mounting holes which are 3/4" in diameter. You would also need a 3-wire pigtail # A45PB or # A47PB to connect the light to your trailer or vehicle. I've added links to video reviews of these products for you to take a look at.
    view full answer...
  • How to Determine if Trailer Light ST70RB Will Work as Replacement.
    We would have no way of knowing a specific trailer light on any trailer, including your 1993 Heritage, so the best we can offer is to tell you how to determine you can use the Optronics Trailer Tail Light # ST70RB. Just measure your light, and if you get the same dimensions - 6-1/2" long x 2-1/4" tall x 2-3/8" thick - then you can use this light. It will also require 3-Wire Pigtail # A45PB or # A47PB.
    view full answer...
  • What Two Pigtails do I Need for my Fusion LED Trailer Tail Light Part # STL211RB
    For the Fusion LED Trailer Tail Light - Stop, Tail, Turn, Backup part # STL211RB you will use the Right Angle 3-Wire Pigtail for Optronics Trailer Lights part # A47PB for the three wire which will carry your running lights, turn/brake signal lights and your ground and the Right Angle 2-Wire Pigtail part # A49PB for the reverse light. I have linked a video for you on the installation process so you can see how they will work together.
    view full answer...
  • How Does Optronics STL101RCFB GloLight Ground to Trailer Frame
    The # STL101RCFB Optronics GloLight would ground to the trailer frame via the 3 prong pigtail that's sold separately as # A47PB for a right angle plug or # A45PB for a straight plug. The white wire on the pigtail is the ground connection. The red wire carries the turn signal/brake lamp circuit and the black wire carries the running lamp circuit. I've linked to some product videos that you might find helpful.
    view full answer...
  • Availability of 3-Pin Pigtail Wiring Connectors for # 98174LED Cargo Carrier Light Kit
    Are you needing the pigtail that will plug into the lamps? If so, a right angle pigtail is available as part # A47PB. A straight plug is also available as part # A45PB. If you're looking for a female socket that will accept the existing plugs to make an extension, Optronics doesn't offer such a part. If you need do some cutting and splicing, I'd recommend soldering your connections and protecting the connections with heat shrink tubing like part # DW05451.
    view full answer...
  • Replacement Pigtail Plugs for Trailer Lighting
    For a 3-prong pigtail plug for a light like the Optronics Trailer Light # ST70RB that you referenced you can use part # A47PB or for a 2-prong use part # A49PB. All such items are shown on the linked page. Corrosion can be prevented by applying dielectric grease # 11755 to the connectors before seating them together. Dielectric grease helps prevent the entry of moisture and dirt that can lead to corrosion which will interfere with signal transmission.
    view full answer...
  • How To Mount the Optronics LED Trailer Tail Light # STL42RB
    I am not entirely sure what you are asking but the Optronics LED Trailer Tail Light part # STL42RB is a flush mount trailer light that is designed to be installed on a flat piece of metal in a 4-1/2" diameter round hole with a self tapping screw like the Self-Tapping Phillips Head part # 1131832. The thickness of the metal that the light installs in is not an issue. The overall depth of the light is 1-15/16" thick. For a pigtail harness we have two options for you, part # A45PB or part...
    view full answer...
  • Troubleshooting LED Clearance Lights on Boat Trailer
    Any trailer light, whether standard incandescent or high-efficiency LED, should light up when it is connected directly to the terminals of a charged 12V battery. Direct connection avoids all other potential causes for problems, such as broken wiring, a weak ground or corrosion, and tells you whether the light functions independent of any other concerns with the trailer's wiring. But since your light works when installed on the other side of the trailer, but not when directly connected to...
    view full answer...

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