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Peterson Piranha LED Trailer Tail Light - Stop, Tail, Turn - 10 Diodes - Oval - Red Lens - 12V/24V
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Peterson

Peterson Piranha LED Trailer Tail Light - Stop, Tail, Turn - 10 Diodes - Oval - Red Lens - 12V/24V

Part Number: M423R-4
In Stock
$28.26
Retail:$33.56
You Save: 16%
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6-1/2" x 2-1/4" Oval. LED trailer tail light functions as a stop, tail, and turn signal light. Pirhana series combines modern design with vibrant lighting. Mounts on surface of trailer - hardware not included. 3-Wire pigtail. Great Prices for the best trailer lights from Peterson. Peterson Piranha LED Trailer Tail Light - Stop, Tail, Turn - 10 Diodes - Oval - Red Lens - 12V/24V part number M423R-4 can be ordered online at etrailer.com or call 1-800-940-8924 for expert service.
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  • Reviews (18)
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Peterson Trailer Lights - M423R-4

Highlights

  • One Light, 3 Functions: Serves as stop, tail, and turn so you stay road legal with one unit.
  • Brighter, Low-Power LEDs: 10 diodes give high visibility while drawing less power.
  • Works on 12V or 24V: Runs on 9–32V DC systems for flexible trailer setups.
  • Reliable in Any Weather: Sealed LED design keeps out moisture and lasts longer.
  • Easy Surface Mount: Installs flat with 7" center-to-center hole spacing.
  • Road Legal: DOT compliant and meets FMVSS 108 standards for safety.

Features to know about

Brighter and More Efficient Lighting: 10-Diode LED Output

If you’re upgrading from old incandescent lights, the Peterson Piranha LED Trailer Tail Light makes a clear difference. With 10 diodes packed into its oval red lens, it delivers a bright and even glow that’s easy to see day or night. LEDs last up to 50 times longer than bulbs and draw less power, so they stay bright without straining your electrical system. You won’t deal with brittle filaments or bulb swaps—just steady, reliable light every time you hit the road.

Ready for 12V or 24V Systems: Flexible Power Compatibility

Whether you’re running standard 12V wiring or a 24V setup, this light fits right in. It’s rated for 9V to 32V DC systems, so you can wire it into different trailers without worrying about voltage mismatch. That flexibility makes it a solid choice for multi-vehicle setups or anyone who wants a simple, dependable solution that just works.

Surface-Mount Design: Clean Look, Simple Install

The surface-mount design lays flat against the trailer body for a clean appearance and easy setup. At 7-1/2" long x 3-1/4" tall x 7/8" deep, it mounts using a flange and standard hardware (not included). You only need a small hole for the wiring. The 3-wire pigtail keeps connections straightforward—white for ground, black for tail light, and red for turn signal—so installation goes smoothly.

Modern Style That Stands Out: Piranha Series Design

The Piranha series brings a modern look with vibrant lighting that catches attention without glare. Its red lens sits over white LEDs for crisp color and high contrast visibility. DOT compliant and meeting FMVSS 108 standards, this light doesn’t just look good—it meets the safety specs you can trust on the road.

Specs

Dimensions

  • Overall dimensions: 7-1/2" long x 3-1/4" tall x 7/8" deep
  • Lens dimensions: 6-5/16" long x 2-1/4" tall x 7/8" deep
  • Distance between mounting holes (center on center): 7"

Electrical and Lighting

  • Diodes: 10
  • Input voltage: 9V - 32V DC
  • LED limited lifetime warranty

Diagram showing surface-mount installation for Peterson Piranha LED oval trailer tail light, illustrating how the fixture mounts flush against a trailer using a flange or bracket with wiring access through the back.

423R-4 Peterson Piranha LED Trailer Tail Light - Stop, Tail, Turn - 10 Diodes - Oval - Surface Mount - Red Lens - 12V/24V





Video of Peterson Piranha LED Trailer Tail Light - Stop, Tail, Turn - 10 Diodes - Oval - Red Lens - 12V/24V
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Videos are provided as a guide only. Refer to manufacturer installation instructions and specs for complete information.




Video Transcript for All You Need to Know About the Peterson Piranha LED Trailer Tail Light

What's up, everybody It's AJ, with etrailer.com. Today we're gonna be checking out this Peterson Piranha Trailer Tail Light. Now it's gonna come in two variations, we're gonna have a chrome bezel around one of them, and the other one is just gonna be black around the outside. Either way, whichever one you go with, it's gonna be LED, it's gonna look really nice on your trailer, especially if you're replacing those old incandescents that heat up and wear out pretty easily, this one you're not gonna worry about replacing for a while, let's check it out. You're gonna have 10 LEDs in total, and they're gonna be white with the red polycarbonate cover over it, that's what's giving it that red shade. They're pretty bright, this is in the middle of the day, you can still see it just fine, so it's gonna be even brighter at night.

As far as size go, it's gonna be seven and a half inches, and that's from the top of the bezel to the bottom of the bezel, and three and a quarter inches wide. So just keep that in mind, where you're gonna put it on your trailer, make sure you got enough space like we do here just to put it in the proper spot. As far as install is gonna go, it's pretty simple, it's a three wire install. So if you're replacing one of your lights, it's most likely gonna have the exact same wires in there, you're just gonna cut those and hook it back up, check out how we did it. Went ahead and removed the old light, it was looking kinda nasty, so we wanted to get it off of there.

Now we're gonna come back and strip the wires, get this ready to add our new light. So I just got a wire stripper here, gonna go at each one of them, and just pull that wire back. Just like that, on each one of them. We got our replacement light here, you see it's listed, what each function of the wires do, so that's good to pay attention to, you gotta hook up on the trailer side. If you're unsure of your trailer wires, if they're different colors, you can always go through and test it to make sure you get the right ones.

But according to our new light, the white wire is gonna be ground, and we're gonna snip off the end here, 'cause we're just gonna attach it right to this ground, it's grounded inside. The black one is gonna be the tail lights, so we'll match that up with a black one on here, and then the red one is gonna be the stop and turn, so that's gonna go to the red one on here. So I got heat shrink butt connectors to use, and that's how we're gonna make our connections. Just gonna go through and attach each one and come back and seal it up, but first we gotta cut off that ground so that it matches up with this one. I got my cutters, just come back, cut that off.

Now I'll get the wire strippers and get that exposed, and then we can make our connections. Back on the trailer side, I went ahead and twisted the exposed wire just so it gets a little thinner and easier it's to put into the butt connector. I'm gonna go ahead and crimp these sides first, that way it's good to go when I get that light. So I just come back, insert that in there, put this in the groove, and I'm crimping down, just like that. Now I got my light, we're gonna go ahead and make those connections on that side. Same thing as we did before, we're gonna make all three of those connections. I went ahead and heat shrinked those butt connectors around those connections that way they're nice and sealed, tuck them back in there, and now we remount our light, so looks like it lines up just fine with all the pre-existing holes so we can just use those to install in the light. Now we're gonna use the existing hardware that was on our old light. If you don't have existing hardware, you're gonna have to get your own that fits in there just make sure you get the appropriate kind that will seal it up to your trailer. We got that one, and then we're gonna do the same process for all the other ones here. Now this light comes in two different ways, you can get it without the chrome border, so then at this point, you'd be done. you wanna test your lights. But if you go to the chrome border, you just put that on now, it snaps into place, that easy. Now I'm upfront, we're going to go ahead and test the lights out, we're gonna fire it up. Looks like our brake lights are working just fine, we're gonna do our left turn. Looks like it's working just fine, and then just straight up tail lights, looks like all the connections are good. Overall, I think it's gonna look nice on your trailer, whatever it's scheme is, if you've got that nice chrome, I liked the way it pops out on our trailer here. Even without it, it looks nice, and it doesn't stick out too far. The LEDs are always a good replacement for old incandescent lights, so definitely an upgrade. They're gonna lasts way longer and you won't have to replace these again for a long time. Well, I think that does it, thanks for hanging out, and I hope this helped..

Customer Satisfaction Score:

Ratings & Reviews

4.9

18 reviews
5 Stars
(16)
4 Stars
(2)
3 Stars
(0)
2 Stars
(0)
1 Star
(0)
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by:
Fast shipping always have what I need
by:
Great replacement. Had for a year with no problems.
by:
Excellent product!
Brian profile picture

Brian

6/9/2025

I mounted the lights on my bike carrier, since my cars taillights are mostly blocked when Im carrying two bikes. The lights are great, and I dont have to worry about getting rear-ended.

by:
Fast shipping, great product. Thanks etrailer!
by:
Direct replacement for OEM unit on my trailer. Easy to install.
by:
Excellent service, unfortunately I ordered the wrong base and correct lights.
by:
Perfect for the job. Easy install, bright light, everything you need.
by:
Nice light, easy to install nice and bright
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Killer lights, Killer price, no problems.
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Good quality lights.
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Exactly what I needed. Delivery was super fast and that was important to me on this order.
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good product, good service replacement instructions would have helpful
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See what our Experts say about this Peterson Trailer Lights

  • Looking for Peterson Piranha LED Taillight 423 094
    Hey Ralph, I believe you are looking for the Peterson Piranha taillight part # M423R-4 which we have the chrome bezel for that is part number # PE98ER. Does this match what you are looking for?
    view full answer...
  • LED Trailer Light for Truck to Help with Visibility in Fog
    Hey Duke, although I don't have a Lumen rating I can give you for the Peterson Piranha LED light part # M423R-4 I can let you know that it is brighter and would be very visible in fog. If you check out the attached picture you can see how bright it was for us when we tested it in daylight to give you an idea. It'll cut right through that fog for sure.
    view full answer...
  • Oval LED Trailer Tail Light That Works With 24 Volt System
    We do have an oval LED tail light that works with 24 volt systems, but the parts you mentioned are only designed to work with 12 volt systems. So if you have a 24 volt system you would need the Peterson light that you referenced, which is the Peterson Piranha LED Trailer Tail Light # M423R-4. This is a surface-mounted light that comes with a flange and measures 7-1/2" long x 3-1/4" tall x 7/8" deep overall. I have added a link below to a video review for you to check out as well if you'd...
    view full answer...

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Info for this part was:

Employee Andrew K
Installed by:
Andrew K
Employee Cole B
Installed by:
Cole B
Employee Jameson C
Expert Research:
Jameson C
Employee Jacob T
Video Edited:
Jacob T
Employee Daron K
Edited by:
Daron K
Employee Brian T
Written by:
Brian T
Employee Aidan B
Video by:
Aidan B

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