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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
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Trailer Lights 425600 - Surface Mount - Peterson
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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. Lowest 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 1-636-306-4830 for expert service.
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  • Reviews (15)
  • Q & A (0)
  • Videos (2)
  • Photos
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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 Trailer Lights - Clearance Lights - 425600 Review

Today we're going to be taking a look at part number 425600. This is the Peterson Amber Rectangular, Two Bulb, Trailer Clearance Light. It's going to have the molded plastic white base. It's going to contain two VIBAR sockets to extend the life of the incandescent bulbs. All the internal metal parts are going to be tinned brass. It's going to feature a one wire design.

You can see that this is a different type of wiring set up that's disconnected. I'll walk you through how to get that installed as well. This unit is designed to ground through the mounting hardware. It's going to feature a snap on amber lens for easy access to the internal components. These two holes here at the back of the base are going to be our mounting locations. If we take a measurement the distance that we have between those holes, center on center that's going to be 3".

This is a surface mount installation on 3" centers. Taking a look at the overall length it's going to give us a measurement of about 4". The width is going to give us a measurement of about 2". The depth is going to give us a measurement of about 1-1/8". This is Department of Transportation compliant. Again it is going to contain two incandescent bulbs.

In order to get it all set up I find it easiest just to use a flat piece or a flat head screwdriver, something flat to wedge in there to help gain some leverage. That way you can snap the lens off. You can see here these are the internal components. This area over here is going to be where it grounds through the mounting hardware. We're going to take the end of our plug and we're going to place it directly onto ...

there's a terminal inside here, it just slides over, press it down and then you can run your ground wire through one of the smaller holes. It's going to feed out of the back of the housing. Once you have that connected simply just replace the lens. Now we can hook it up to power and you can see what it looks like with power running to it. Here you can see that the light sends out . let me get my ground connection made. It sends out a really nice consistent signal. Again it's got two incandescent bulbs, very bright light. That lens allows a lot of light to come through. Again this is Department of Transportation compliant and the light is going to function as a trailer clearance light. That's going to do it for our review of part number 425600. This is the Petersen Amber Rectangular, Two Bulb, Trailer Clearance Light. .

Customer Reviews

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

Average Customer Rating:  5.0 out of 5 stars   (15 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.


Always count on ETrailer to have everything you need.


Quality produce and price, always good communications and service


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


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.



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...
  • 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...
  • 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...
  • 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...

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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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