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Peterson LED Clearance or Side Marker Trailer Light w/ Reflector - 1 Diode - Round - Amber Lens
(81 reviews)
Price: $6.04
In Stock
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Peterson LED Clearance or Side Marker Trailer Light w/ Reflector - 1 Diode - Round - Amber Lens
Part Number: M175A
In Stock
$6.04
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- All Info
- Reviews (81)
- Q & A (0)
- Videos (1)
- Photos
Peterson Trailer Lights - M175A
Highlights
- Brighter, Low-Power Light: LED draws only 0.04 amps at 12V while giving off a strong amber glow.
- One Light, Two Uses: Works as a side marker or clearance light for flexible trailer lighting.
- Built-In Reflector: Reflex reflector removes the need for a separate reflector piece.
- Durable, Long-Lasting LED: No bulbs or filaments to replace; lasts up to 50 times longer.
- Clean Recessed Mount: Installs with a grommet (sold separately) for a flush, protected fit.
- Road Legal: DOT compliant and P2 rated for safe, standardized light coverage.
Features to know about
Brighter Light, Lower Power Draw: LED Efficiency That Lasts
Incandescent bulbs fade fast and pull more power than they should. This 2-1/2" round Peterson LED light changes that with a single diode design that shines bright while drawing only 0.04 amps at 12V. It lasts up to 50 times longer than traditional bulbs, stays efficient, and gives off a clear amber light that improves visibility without wasting energy. No filaments to break and no bulbs to replace—just consistent light you can count on.
No Need for Extra Reflectors: Built-In Reflex Design
When space is tight or you want a clean look, the built-in reflex reflector eliminates the need for a separate reflector. It adds safety by reflecting light even when the LEDs are off, keeping your trailer visible from multiple angles. That’s one less part to install and maintain while still staying compliant.
Simple Mounting Setup: Recessed Installation with 2-Prong Plug Compatibility
Getting this light installed is straightforward. It’s designed for recessed mounting using a grommet (sold separately) and accepts an industry-standard 2-prong plug for quick connection. If you’re replacing an old light, you can use the same hole; if it’s a new install, just cut one to size or use a compatible bracket. Either way, it sits neatly into place and looks factory-clean once mounted.
Reliable Coverage Where You Need It: P2-Rated Beam Pattern
This P2-rated light provides a 45-degree spread to each side of center for full 90-degree coverage straight on. That makes it ideal for use as either a clearance or side marker light, depending on where you need visibility most. The focused beam ensures the right signal coverage for safety without lighting up areas that don’t need it.
Built for Everyday Use: DOT Compliant and Durable Construction
DOT compliance means it meets safety standards right out of the box. The solid construction and sealed design keep out dust and moisture while maintaining reliable performance over time. With its limited lifetime warranty on LEDs, this Peterson light is made to keep working wherever your trailer goes.
Specs
Dimensions
- Overall diameter: 2-1/2"
- Depth: 15/16"
Electrical
- Power draw at 12V: 0.04 amps
- Diodes: 1
Warranty
- LED warranty: Limited lifetime warranty on LEDs
M175A Peterson LED Trailer Clearance or Side Marker Light w/ Reflex Reflector - Round - Amber Lens - P2 Rated
Video of Peterson LED Clearance or Side Marker Trailer Light w/ Reflector - 1 Diode - Round - Amber Lens
Videos are provided as a guide only. Refer to manufacturer installation instructions and specs for complete information.
Video Transcript for Review of the Peterson LED Clearance or Side Marker Trailer Light w/ Reflector
Today we're going to take a look at the Peterson LED Trailer Clearance or Side Marker Light with reflector.It's important to have a reflector and light on your trailer so that it's going to be clearly visible, even at night. You can see if I get my reflector at the right angle, it's going to just refract the light back to us making our trailer visible, even when the light's not on. There we go, you can see it reflecting there. Just make sure that we can still be seen, find our trailer, even in the dark.At the back we'll have our two prongs to connect to our wire. It's going to take a two prong pigtail, that's available separately. You can find that here at Etrailer.com.
Just plug those into the back there. It's a little bit tight at first, but just pops into place and now our wire . our light is all plugged up.You can see we'll have that single diode at the center, turn the lights out and better able to see just how bright that's going to be. Not terribly bright, but just enough that we'll still be seen.This light is P2 rated, which basically means that it can only be seen on one side of our trailer so it's .. If you think of the corner of your trailer, you can't use this as a side marker and a clearance light, it can only go on one side or the other, one side of the corner or the other, because the light is just not visible from multiple angles.
That's due to the one diode there, just can't really see it once it gets turned to the side.Again, DOT compliant, made in the USA, has a two and a half inch diameter, and measures about fifteen sixteenths of an inch deep. We go from that front face of the light to those back prongs. So just under an inch.You can also pick up a grommet to go with this light. That's just going to help to give it a little bit more road protection or protection from shocks and bumps as we go down the road. Also kind of finishes off the look of it and this will fit in a three inch hole since the grommet fits into there with that three inch diameter going on the inside of that flap.
You can pick this up using part number 142-18 through Etrailer.com.The diode also has a limited lifetime warranty from Peterson.That's going to do it for our look at the Peterson LED Trailer Clearance or Side Marker Light.
Customer Satisfaction Score:
99% were satisfied with this product
1% of customers were not satisfied
- Wrong item was ordered
Ratings & Reviews
4.8
81 reviews
by:
William
03/21/2026
1 of 4 defective, Red marker LED defective dull light and off center, not damaged in shipping, actually defective from manufacturing. Otherwise the other three were of good quality
by:
George
08/30/2024
Plug and play. My old light was incandescent but this LED isn't overpowering
by:
Cihan
02/28/2025
Perfect fit
by:
Alice
02/18/2026
by:
Ken
06/01/2025
by:
Charles
11/17/2024
by:
Allan
12/15/2024
by:
monty
01/04/2025
by:
huntinmama
05/16/2025
by:
Leasa
08/07/2024
by:
Ross
08/23/2024
by:
Eric
08/13/2026
These clearance lights are the bees knees! The old bulb style were rusted and not working properly. Was able to remove them and these fit the holes perfectly on the trailer. I used a heat shrink connector to keep it waterproof. Love how bright they are!
by:
Robert
08/03/2026
2/3 of my order arrived correctly but one pair did not arrive, instead something I did not order arrived instead,
by:
Jason
05/10/2026
Excellent product!! Quick shipping!! Will do business again.
Thank you
Thank you
by:
Jason
02/11/2026
What incredible customer service Cody. Cheers and thanks.
by:
Ralph
09/16/2025
These are the same ones that are on my trailer! I need to replace two of them that are broke!!
by:
Joe
02/18/2026
Perfect fit! Arrived quickly
by:
Brock
11/14/2025
it goes on and off when i need it too
by:
Alan
02/12/2024
The lights themselves are great and look good at night. Installed 7, 2 Reds and 5 Yellows on my horse trailer.
What was not so good was the cost. The Reds at the time I ordered were $x.xx each, while the Yellows were $xx.xx apiece. They are the exact same light with different color lenses. Why is that???
Anyhow, needed them and bought them.
Also, the shipping was right on, arrived quickly.
What was not so good was the cost. The Reds at the time I ordered were $x.xx each, while the Yellows were $xx.xx apiece. They are the exact same light with different color lenses. Why is that???
Anyhow, needed them and bought them.
Also, the shipping was right on, arrived quickly.
by:
Gregory
07/25/2021
Had these lights on RV for a few years. Works well, only one light failed recently. Would recommend to others.
by:
John
10/10/2024
Received immediately. Easy to install and works great. My only concern is that they are made out of a very light plastic material and were a little pricey for single LED lights. They are definitely bright enough. I have not had a chance to put the trailer in the water to see if they are waterproof, but I’m sure they are.
by:
Christine
08/19/2025
The light looks of great quality.
by:
Lee
10/29/2024
I would give a 10 if they had one.super group of people to work with fast service.i would definitely recommend this company to anyone who has trailer problems.etrailer is the place to go.thank you folks for all your help.
by:
Ken
10/18/2024
I found exactly what I was looking for at a great price, but shipping was a bit high for such a small item. thank you
by:
David
01/26/2023
Fast shipping
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See what our Experts say about this Peterson Trailer Lights
- Is There a Pigtail for a Peterson 164R Light That Can be Linked Together?It looks like we do have the Right Angle 2-Wire Pigtail for Peterson Trailer Lights - 2-Prong PL-10 Plug - 6" Lead # B162-49 that will definitely fit your 164R lights. Unfortunately, Peterson does not offer a pigtail that has pass-through capabilities at this time. However, what you may be able to is use something like the Quick Splices - Self-Stripping Connector - Closed Port - 14-16-18 Gauge - Blue - Qty 1 # SWC502905-1 to quickly and easily splice one black wire to the next.
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Info for this part was:
Installed by:
Kathleen M
Updated by:
Wilson B
Updated by:
Justice A
Edited by:
Daron K
Written by:
Brian T
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Gregory
7/25/2022
Lights are great. No issues.