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

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

Item # 425200

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Product Images

In Use/Installed

4-1/8" x 2" Oblong. Incandescent trailer light serves as a clearance and side marker light when properly mounted. Premium bulb 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 Clearance and Side Marker Trailer Light - 2 Bulbs - Oblong - Amber Lens part number 425200 can be ordered online at or call 800-298-8924 for expert service.
  • All Info
  • Reviews (9)
  • Q & A (6)
  • Videos (2)
  • Photos
  • Why etrailer?

Peterson Trailer Lights - 425200

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

4-1/8" x 2" Oblong. Incandescent trailer light serves as a clearance and side marker light when properly mounted. Premium bulb 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
  • Premium bulbs provide 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: 4-1/8" long x 2" tall x 1-1/16" thick
  • Distance between mounting holes (center on center): 3"
  • Number of bulbs: 2
  • Bulb type: 194/193
  • Power draw at 12V: 0.25 amps
  • 1-Year limited warranty

Manufacturer Cross Reference

Light will work as an exact replacement for:

Truck-Lite # 1259A

Grote # 45263-3

Optronics # MC66ABP

Primatronics # PT2601A

Peterson 135A Oblong 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.

M135A Peterson Clearance and Side Marker Trailer Light - 2 Bulbs - Oblong - Surface Mount - Amber Lens - PC Rated

California residents: click here

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

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

Video Transcript for Peterson Amber Oblong Trailer Clearance Light Review

Speaker 1: Today we're gonna take a look at the Peterson 00:00:00 amber oblong two bulb trailer clearance light. Part number is 425200.Here's what our light's gonna look like installed. As you can see, this is a dual bulb setup, so it's gonna give us plenty of intensity in our lights. Has a nice acrylic lens here, so even if it gets hit with a few things, we shouldn't have to worry about scratching or chipping.I also like how the lens clips on. It seemed to have a very positive feel as it clipped on, and all the way around, there's that raised edge, so it's gonna seal it and help prevent any moisture or dirt from getting inside.Now, over all, the light is gonna be 4 1/8 inch wide. From top to bottom, it's gonna be 2 inches tall, and from your mounting surface to the outermost edge of the lens, it's about an inch and 1/32nd.Now, in this particular light, they use what's called a vibar 00:00:46 socket.

You can see it allows a little bit of flexibility on our bulb there. That's to help to protect that filament, so we're not gonna have to worry about changing the bulbs as often.Now, this is an incandescent light, and it's gonna act as a standard replacement for most lights of this size. Typically, what you're gonna do is if you're just replacing one light, we're seeing most of our customers just go with a replacement incandescent such as this. If you're revamping your trailer, though, we recommend switching over to an LED style light. They last much longer.

You don't have bulbs that you have to replace. They use less power, so you're not gonna be drawing so much to get all the lights on your trailer lit up. And over all, I think they offer a cleaner and brighter light. So just something there to keep in mind.Now, the installation process is gonna, of course, begin with your old light removed. You'll want to have your wires exposed.

Now, this is designed to work as what they call kind of a single wire setup, so if you're mounting it to metal . This is fiberglass, but if you're mounting it to metal, you're just gonna connect that to your power wire coming from your running lights. This being your two wire system, we'll show you how to hook it up. It's not that much more involved that just a single wire.We're gonna strip the wire on our light back just a little bit. I always like to twist this, just so it give us a nice solid ...

Almost like a solid core wire. We'll place on a butt connector. It's a heat shrink. I like using these, just because it gives you superior corrosion resistance. Once we get it shrank down, there's no chance water or dust can get in there and cause corrosion down the road. And we'll connect that right to our power supply wire, again from the running lights. All right.Now, we'll use a heat source to shrink that down. You can use a mini torch. I just typically use a lighter. Or you can use a heat gun. The key is not to overheat it. You just want to give it gentle heat.Now, if you're gonna do a single wire setup, at this point, you're ready to attach it. Your ground is gonna be connected by your fastener, through this metal tab that sticks out right here. And in our situation, since we're running a two wire system, we want to bring our second wire, which is our ground wire, through. Then I'm gonna add on a ring terminal. That will provide the ground connection we need there. So this light's gonna work out well, whether you've got a single or double wire setup. That crimped on.And we just need to align that ring terminal with our ground holder. Then we can use our original hardware that we removed to reattach our light. Remember, this isn't gonna come with any hardware, so you do need to use your other stuff.Now, with the base securely attached to our trailer, we're just gonna take our lens, get it lined up, and push firmly to snap it into position.Now, to ensure your light's working properly, you'll want to hook it up to your towing vehicle and turn on the running lights. And as you can see, it's working just fine.And that will complete our look at the Peterson amber oblong trailer clearance light, part number 425200.

Customer Reviews

Peterson Clearance and Side Marker Trailer Light - 2 Bulbs - Oblong - Amber Lens - 425200

Average Customer Rating:  5.0 out of 5 stars   (9 Customer Reviews)

4-1/8" x 2" Oblong. Incandescent trailer light serves as a clearance and side marker light when properly mounted. Premium bulb for long life. Snap-on lens. Surface mount - hardware not included. 1-Wire design. PC rated. (2) 194 bulbs.

- 425200

I couldn't find these for my old camper in local parts stores. They were perfect fit and replaced the old parts perfectly. Work great. Thanks E-trailer! 639010

- 425200

good product fast service 591322

- 425200


- 425200

I have purchased a number of items from etrailer and have been very pleased with the products, prices and fast shipping. I have older two motorhomes and three old utility trailers, anytime I need lighting parts etrailer is my "go to" store. The two Peterson clearance lights I just purchased are great quality and are a direct replacement for the old lights. Thank you etrailer. DJ. 462234

- 425200

Double light fixture so it's bright. One wire connection so grounding happens thru a screw going into the body what you are putting the light. 428670

- 425200

Website easy to negotiate. Item's arrived in a couple of days. Well packaged. 419518

- 425200

Great transaction. Product is as described. Quick to ship. Received earlier than expected. I recommend this seller. 350464

- 425200

Just what I ordered. Great quality. 246158

- 425200

Ordered Peterson lights for tow dolly. Prompt service/shipping. Replaced in less than a week. norm 151957


Ask the Experts about this Peterson Trailer Lights

Do you have a question about this Trailer Light?

  • Replacement Clearance Light for 2009 Winnebago Adventure
  • We don't have an exact replacement for the light you sent in a picture of but the part # 425200 would work well as a replacement.
    view full answer...

  • How Many Wires are on The Peterson Amber Oblong, Two Bulb, Trailer Clearance Light, 135A
  • The Trailer Clearance Light, 135A, part number 425200, has one wire for power and is grounded to the trailer or vehicle through the mounting hardware, so it needs to be mounted to a metal surface that will supply a good ground connection.
    view full answer...

  • Replacement Clearance Light for Old Horse Trailer
  • On trailer lights the actual part number for the entire light assembly will be found on the light's base. Sometimes the lens will have other reference numbers that are not the actual part number for the entire light. Based on my research the reference 106 15 pertains to an oval red light lens. You can refer to the linked page which shows you all of our oval trailer lights. You can simply click on the filters on that page to choose the light style (a clearance light, for example), the...
    view full answer...

  • Are 4 x 2 Oval Waterproof LED Clearance Lights Available?
  • There are a couple options for your boat trailer to install waterproof, LED, oval amber clearance lights similar to the Peterson # 425200 you referenced. The closest in dimensions is the 4-1/2" x 1-1/2" Optronics # MCL17AB which is sealed and submersible, with a snap-on chrome cover while mounting to the surface of your trailer, or the similar Optronics # 11212706P which uses a chrome bezel. I've added links to video reviews of each light for you to check out.
    view full answer...

  • Recommended Submersible Amber Trailer Clearance Light
  • The Peterson Amber Oblong Clearance Light, part # 425200 is not submersible because the back of the light housing is not sealed and would allow water in, but we do have a light that would work for you. I recommend the Optronics Sealed, Rectangular LED Trailer Clearance and Side Marker Light, part # MCL49AB. This light has 14 diodes and is a surface mount. This light measures 3-7/8 inches long x 2 inches wide and 1 inch deep and has mounting holes that are 3 inches center-to-center. I...
    view full answer...

  • Amber Clearance Light Recommendation for a Grille Light on a Kia Soul
  • The Peterson Amber Oblong Two Bulb Light part # 425200 would be a great choice for what you are trying to do. But before you do this I would recommend you check with your local DOT to confirm that what you are looking to do is legal. Most likely you would be fine, but it can't hurt to check.
    view full answer...

Do you have a question about this Trailer Light?

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Info for this part was:

Expert Research:
Robert G
Expert Research:
Jameson C
Expert Research:
Jeffrey L
Updated by:
Laura H
Updated by:
Brian T
Video Edited:
Dustin K
Installed by:
Cole B
Installed by:
Randy B
Video by:
Zach D

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