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Peterson Double Bullseye Clearance and Side Marker Trailer Light - 2 Bulbs - Amber Lens

Peterson Double Bullseye Clearance and Side Marker Trailer Light - 2 Bulbs - Amber Lens

Item # 425600
Our Price: $6.16
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Shipping Weight: 0.12 lbs
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4" x 2" Rectangle. Incandescent trailer light serves as a clearance and side marker light. Double bullseye with premium bulbs for long life. Snap-on lens. Surface mount - hardware not included. 1-Wire design. PC rated. (2) 194 bulbs. Great Prices for the best trailer lights from Peterson. Peterson Double Bullseye Clearance and Side Marker Trailer Light - 2 Bulbs - Amber Lens part number 425600 can be ordered online at or call 1-800-940-8924 for expert service.
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  • Reviews (19)
  • Q & A (0)
  • Videos (2)
  • Photos

Peterson Trailer Lights - 425600

  • Clearance Lights
  • Rectangle
  • Incandescent Light
  • Amber
  • 4L x 2W Inch
  • Surface Mount
  • Rear Clearance
  • Non-Submersible Lights
  • Peterson

4" x 2" Rectangle. Incandescent trailer light serves as a clearance and side marker light. Double bullseye with premium bulbs for long life. Snap-on lens. Surface mount - hardware not included. 1-Wire design. PC rated. (2) 194 bulbs.


  • Incandescent trailer light functions as a clearance and side marker light when properly mounted
  • Double bullseye design uses 2 bulbs to produce bright light
  • Premium bulb provides up to 15,000 hours of light
  • Snap-on acrylic lens
  • Amber lens over incandescent bulb
  • Compatible with 12V DC systems
  • Surface mount to trailer - hardware not included
  • Single wire design grounds through mounting hardware
  • DOT compliant
  • PC rated
  • Made in the USA


  • Dimensions: 4" long x 2" tall x 1-1/8" thick
  • Distance between mounting holes (center on center): 3"
  • Bulb type: 194/193
  • Number of bulbs: 2
  • Power draw at 12V: 0.25 amps
  • 1-Year limited warranty

Manufacturer Cross Reference

Light will work as an exact replacement for:

Truck-Lite # 1213A

Grote # 46793

Optronics # MC42AB

Primatronics # PT2602A

Peterson 138A Double Bullseye Clearance Marker Light Dimensions

PC-Rated Lights

Diagram of light spread for PC rated light

A PC-rated light produces a 90-degree angle of light to either side of its centerline for a total of 180 degrees of coverage. This beam pattern can be clearly seen when you are standing directly in front of the light, as well as when you are standing on either side of the light. When properly installed, this type of light can function as both a front clearance light and a side marker light or as a rear clearance light and side marker light.

Surface-Mount Light

Surface Mount Trailer Light Installation Diagram

Surface-mount trailer lights install using a flange or bracket with mounting holes. These lights lay flat against the trailer surface and only require a small, often pre-existing hole, for wiring. Mounting hardware is used to secure the light to the trailer.

M138A Peterson Double Bullseye Clearance and Side Marker Trailer Light - Incandescent - Rectangle - Surface Mount - Amber Lens - PC Rated

California residents: click here

Video of Peterson Double Bullseye Clearance and Side Marker Trailer Light - 2 Bulbs - Amber Lens

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

Video Transcript for Peterson Amber Rectangular Two Bulb Trailer Clearance Light Installation

Speaker 1: Today, we're going to be taking a look at the Peterson Amber Rectangular, Two-Bulb, Trailer Clearance Light. Part number is 425600.Here, you can see our light installed. You see we've got the two bullseyes there, it gives it that double-bullseye design. You can see inside we've got two incandescent lights. These are mounted on what they call a VIBAR socket. So, it's a vibration-dampening socket.

That helps to prolong the life of those filaments.Incandescent lights tend to always, after a while, those will become brittle. You're up here with a screwdriver, trying to switch out those bulbs for bulbs that work. Those VIBAR sockets are designed to extend that life slightly.Now, as compared to that, you'll have LED lights. Now, LED lights, since there aren't any filaments in them that go bad, they basically last much, much longer. They're going to draw less light, and they give a brighter and cleaner light.So, you'll see a lot of people, when it's time to replace their lights, tend to go with LEDs.

But, if you're just replacing one, and you don't want to replace them all, well, you want them to match, rightYou can see how we've got our light mounted here on a 45. These can be mounted on the front. There's a font-marker light or a clearance light. On the side of your trailer is a side-marker light. But, when mounted on a 45-degree angle like this, it's going to meet the requirements for both a clearance light and side-marker light.Now, just like most standard side-marker or clearance lights of this design, the mounting holes are going to be on three-inch centers.

So, if that matches what you've got, this light's going to work out really well for you.Now, you want to begin your installation with your old light removed. So, this is what they call a traditional one-wire system, so that will be hooked right up to where your power is coming from for your light. And as you secure it, see that little metal portion right there is what creates the ground.When attaching it to a fiberglass corner like this, traditionally you'll have a two-wire setup. The thing I like about the single-wire light, you're kind of able to use it both ways. So, let's just start by making our first connection.To do this, we're going to use Heat Shrink Butt Connector.

It's part number is DW05744. I like the idea of heat shrink, just because, once properly shrank down, you're not going to have to worry about moisture or dirt getting in there and causing corrosion.We can strip back our power wire from our running light. Give that a little bit of a twist, place it in and we'll get it crimped down. Now, we'll need to use some form of heat source to get that shrank down. I generally use a lighter. You can also use a heat gun or a mini torch.Just want to gently heat it. There's no need to burn it, melt it, anything like that. If you gently heat it up, it's going to start shrinking, and eventually that wire is going to look like it magnifies, or it gets a little bit wider, and you'll have a little bit of clear gel that comes out of the end of the connector. Just like that, and that will indicate to you that you've got it fully shrank down.Now, for our ground wire, we're going to slide it right through that square hole in the back side. And we'll pull that through, and we'll want to strip that back. We're going to add on just a little ring terminal, and we'll use that to provide our ground to that metal portion we talked about earlier.So again, whether you've got a one- or two-wire system, this light will work out for you. You can see how we're going to place that screw through the ring terminal, and it comes out on our back side.Let's tuck our wires back in our trailer. Then, we'll reattach it. Just remember to hang on to your existing hardware. The light doesn't come with it, so you'll have to reuse what you've go.Now, with that secure, we'll just place our lens over the top, press down firmly, and we're ready to test it out. Now, to test out the light, you can simply plug into your towing vehicle. Turn on the running lights, and it should come on. You can also use a trailer tester, which we'll be doing today.There you can see everything is working properly. And that will conclude our look at the Peterson Amber Rectangular Clearance Light, part number 425600.

Customer Reviews

Peterson Double Bullseye Clearance and Side Marker Trailer Light - 2 Bulbs - Amber Lens - 425600

Average Customer Rating:  4.9 out of 5 stars   (19 Customer Reviews)

4" x 2" Rectangle. Incandescent trailer light serves as a clearance and side marker light. Double bullseye with premium bulbs for long life. Snap-on lens. Surface mount - hardware not included. 1-Wire design. PC rated. (2) 194 bulbs.


I got my order delivered when it was supposed to be here. Everything came without anything damaged. The only complaint was that the packaging was loose, I was surprised that the side marker lights survived the ride.


As described with a lead for your chased activation energy and but grounds to trailer. Make sure you have this scenario and these lights will work perfect!


The trailer lights are great, they're great quality and were a great replacement for the old lights of my Grumman Olson


Always count on ETrailer to have everything you need.


Used a lot - big or small parts every time they deliver!


We are restoring a horse trailer and these are exactly what we needed. great product from a great source!


Great replacement lights


Quality, quality, quality
Was hoping
it was better than what I had and of course it was.


Quality produce and price, always good communications and service


1 year later, no issues. Thnaks!



Great deal









See what our Experts say about this Peterson Trailer Lights

  • Does Power Wire for Peterson 138A Clearance Light Connect to Ground of Other Clearance Light
    You'd need to run your other lights power wire to the same power source as what the # 425600 will connect to. These are not wire like Christmas lights where the power of one light is the ground of the next.
    view full answer...
  • Availability of Submersible Amber Clearance Light that Does Not Require Sealing
    There really isn't an effective way we can recommend to water proof the # 425600 that you referenced. You can try sealing it but since this is not a light that's considered submersible it's not guaranteed you wouldn't have problems. Better option is a light that is submersible like the # MCL48AB which does not require any additional sealing. I also attached a link to a page that has all of the amber sumbersible clearance lights we offer as well.
    view full answer...
  • Is There an Amber, Double Bulb, Trailer Clearance Light with a White Back Instead of a Black Back
    We do have a light very similar to the Optronics Double Bullseye Trailer light # MC42AB that you referenced that has a white background. The Peterson Amber Rectangular Two Bulb Trailer Clearance Light part # 425600. This light does have the white background mounting surface that you had requested. This light has very similar dimensions, mounting style, and bulb configuration as the product that you had referenced. I have included a link to the product page for your reference.
    view full answer...
  • Do You Have an Amber Side Marker Lens for a 1977 Apache Mesa Camper
    The cover you selected for your side marker light is 2-1/8 inch tall by 4-1/16 inch wide. We have a lens that is 2 inches by 4 inches and it is the A-31AB, replacement lens for MC31AB. I could not find a reference to the part numbers you provided. If you do not believe this lens will work for your light you could purchase the whole replacement light such as the MC32AB or the 425600. These side marker lights are basically the same size as the light you mentioned and will replace the whole unit.
    view full answer...
  • Clearance and Side Marker Lights That Are Made In The USA
    The Optronics Red LED Trailer Clearance or Side Marker Light # MCL32RB will come from their factory in Taiwan. If you are looking for clearance lights that are made in the USA I recommend the Peterson Double Bullseye Clearance and Side Marker Trailer Light in Red # 425800 or Amber # 425600. These have the same 4" long by 2" wide footprint but use bulbs rather than LED's. The bulbs can be swapped for LED's # DI88VR if you prefer the lower power draw and longer life of LED lights.
    view full answer...

Do you have a question about this Trailer Light?

Info for this part was:

Employee Jameson C
Expert Research:
Jameson C
Employee Laura H
Updated by:
Laura H
Employee Brian T
Updated by:
Brian T
Employee Cole B
Installed by:
Cole B
Employee Randy B
Installed by:
Randy B
Employee Chris R
Video Edited:
Chris R
Employee Zach D
Video by:
Zach D

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