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Peterson Piranha LED Clearance or Side Marker Trailer Light - Waterproof - 4 Diodes - Red Lens
Peterson

Peterson Piranha LED Clearance or Side Marker Trailer Light - Waterproof - 4 Diodes - Red Lens

Part Number: M161R
In Stock
$8.57
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In Use/Installed

3-13/16" x 1-1/4". Waterproof, LED trailer light serves as a side marker light or a clearance light. Pirhana series combines modern design with vibrant lighting. Surface mount with bracket (sold separately). Accepts 2-wire plug. P2 rated. Great Prices for the best trailer lights from Peterson. Peterson Piranha LED Clearance or Side Marker Trailer Light - Waterproof - 4 Diodes - Red Lens part number M161R can be ordered online at etrailer.com or call 1-800-940-8924 for expert service.
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  • Reviews (267)
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  • Videos (2)
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Peterson Trailer Lights - M161R

Highlights

  • Reliable In Any Weather: Sealed, waterproof housing protects the LEDs and circuit board from moisture.
  • Fewer Replacements Needed: LEDs last 50 times longer than incandescents with no bulbs to replace.
  • Bright, Efficient Output: 4 red LEDs use only 0.02 amps at 12V for vibrant light and low power draw.
  • One Light, Two Uses: Works as either a clearance or side marker light for flexible placement.
  • Simple Surface Mount: Installs flat with a bracket and 2-wire plug for a clean, low-profile fit.
  • Road Legal: DOT compliant and P2 rated for 90° forward visibility coverage.

Features to know about

Long-Lasting Brightness and Efficiency: 4-Diode LED Light That Outshines Bulbs

Old bulbs fade fast and drain power, but this 3-13/16" x 1-1/4" Peterson Piranha LED light delivers bright, efficient lighting that lasts. With four durable LEDs drawing only 0.02 amps at 12V, it gives off a strong, vibrant glow while keeping energy use low. There are no fragile filaments to break, and it lasts up to 50 times longer than incandescent lights, meaning no more constant replacements—just steady, reliable output every time you tow.

Built for Harsh Conditions: Fully Sealed and Waterproof Construction

Moisture and corrosion can ruin trailer lights fast, especially around water. This Piranha series light is built to stop that problem before it starts. The housing and lens are sealed together into one waterproof unit that keeps out dirt and water even when submerged. The circuit board uses SMD construction to handle shock and vibration better while improving heat distribution for a longer lifespan.

Clean Fit and Simple Wiring: Surface-Mount Design with 2-Wire Plug

Installing a dependable light shouldn’t take all day. This surface-mount design lays flat against the trailer using a bracket (sold separately) with just a small hole for wiring. The simple 2-wire plug setup makes connection quick—power and ground, nothing extra. It’s a neat fit that looks clean once mounted and stays secure through rough roads or repeated use.

Clearly Visible Coverage: P2-Rated for Safe Signaling

When you’re on the road at night or in poor weather, visibility matters most. The P2 rating on this light gives you a focused 90-degree beam spread—45 degrees to each side of center—making it easy to see from the front or rear of the trailer. It’s ideal for use as a clearance or side marker light, meeting DOT standards so your trailer lighting stays road legal and safe to follow.

Modern Look That Matches Performance: Piranha Series Design

Beyond function, this light has a sharp, modern look with its red lens over white LEDs. The thin profile and bright, even output give your trailer a clean appearance that stands out day or night. It’s part of the Peterson Piranha series—built for people who want dependable durability and style in one compact LED package.

Specs

Dimensions

  • Overall length: 3-13/16"
  • Overall height: 1-1/4"
  • Overall depth: 13/16"
  • Distance between terminals (center on center): 10-mm
  • Terminal diameter: 4-mm

Dimensional diagram of Peterson Piranha M161R red LED clearance or side marker trailer light showing measurements and rectangular design.

Electrical

  • Power draw at 12V: 0.02 amps
  • Input voltage: 9V - 16V DC

Lighting

  • Diodes: 4
  • Lens color: Red
  • LED type: White LEDs under red lens

Warranty

  • LED limited lifetime warranty

Manufacturer Cross Reference

  • Grote #: G1902 and 47092
  • Truck-Lite #: 19032R
  • Optronics #: MCL65RB
  • Maxxima #: M20350R

M161R Peterson Piranha LED Trailer Clearance or Side Marker Light - Waterproof - 4 Diodes - Rectangle - Red Lens - P2 Rated





Video of Peterson Piranha LED Clearance or Side Marker Trailer Light - Waterproof - 4 Diodes - Red Lens
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Videos are provided as a guide only. Refer to manufacturer installation instructions and specs for complete information.




Video Transcript for Breaking Down the Peterson Piranha LED Clearance or Side Marker Trailer Light

Today we're taking a look at the Peterson Piranha LED red clearance or side marker light. This rectangular trailer light functions as both a clearance light and a side marker light for your trailer. Has a nice sealed design so it does a great job at keeping out dirt and moisture.It's an LED unit so it makes a great replacement for incandescent lights. LED's, they last longer, they burn brighter, they're more efficient. You don't have to worry about replacing bulbs and you don't have to worry about brittle filaments.It mounts on the surface of a trailer with a bracket. Your bracket is sold separately.

It's available at etrailer.com and then it accepts the female marker light plug from Peterson, which is also sold separately and available at etrailer.com.It's Department of Transportation compliant. When it comes to the measurements of the unit, take a look at that and then we'll hook it up to power. We're looking at about three, and if we're going edge to edge, we're looking at about three and 13/16ths of an inch. Edge to edge going in this direction it's about an inch and a quarter, and the depth, just measuring the actual lens and housing area, it's about 13/16ths of an inch deep.All right, we'll go and hook it up to power. Turn off our our overhead lights so you can see it in a low light setting.

So you can see here, it sends out a really nice clear, consistent signal. It has a multi diode design, so that means that it has four LED's. So the multi diode design really helps optimize the overall light output. It's a very bright design, very visible, nice and easy to see.I do want to point out that the rated input voltage for this unit is nine volt to 16 volt DC.That's going to do it for today's look at the Peterson Piranha LED red clearance or side marker light.

Customer Satisfaction Score:

Ratings & Reviews

4.7

267 reviews
Review sort icon
3-13/16" x 1-1/4". Waterproof, LED trailer light serves as a side marker light or a clearance light. Pirhana series combines modern design with vibrant lighting. Surface mount with bracket (sold separately). Accepts 2-wire plug. P2 rated.

by:

I installed these lamps and my daughter’s 2012 Thor RV to replace the outdated and faded incandescent lights. They were amazing from the start. I get nothing but compliments on how bright and clear they are along with how easy they are to see. I’d recommend them to anyone with old style lamps on their trailer or RV.



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Replaced poorly designed lights on a travel trailer with these. The original lamps were not weather proof and used tensioned contacts that were prone to oxidation and corrosion from the elements. These LED lamps are sealed in epoxy so the elements will not affect them. Each lamp has two LEDs and a 6" wiring pigtail.



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Great price, fast shipping cant ask for better



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Perfect fit and a higher quality produc t.



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It's a nice bright light and matches the originals perfectly. Little pricey but a good experience.



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Item was as stated.



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quick delivery



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Product was what we wanted but they didn't come individually package. Good thing they were for the same customer



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Fast delivery, easy install



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Fits perfectly in my existing mounts on a 2004 Haulmark cargo trailer.



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Fast service...tx



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Works great



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Fast delivery, easy installation, great product!



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I have not installed them yet, but they look like they will work just fine. Don’t have to worry lightbulbs getting loose.



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Were exactly the same size and need for my 20’ trailer!



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Perfect fit and bright just what I was looking for



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Great seller/ Fast shipping AAAAA +++++



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Much better connection than the original incandescent lights I replaced with these LED lights, and much brighter. Great product and fast shipping!



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Just what I was looking for. Was a last minute repair before trip, order fullfilled quickly and installation was perfect in time.

Thank you



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Thank you thank you
Perfect fit


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See what our Experts say about this Peterson Trailer Lights

  • Availability of Peterson LED Trailer Side Marker Lamp
    Peterson does indeed offer an LED version as part # M161R. The mounting bracket # B154-11 and the wiring pigtail # 153-49 are sold separately.
    view full answer...
  • Replacement Rectangular LED Light Combination Amber/Red
    I have a couple options for you that are going to be a close match to the Peterson Piranha LED Clearance Light # M161R . # MCL65ARB is 3-15/16" long and a 10 diode LED light that is amber on the left and red on the right. This is a surface mount light and does not come with a mounting bracket. # MCL67ARB is the same light that comes with a mounting bracket included. If you were looking for a 2 diode light you can use # MCL61ARB which does not come with a mounting bracket. If you're looking...
    view full answer...

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Info for this part was:

Employee Dustin K
Video Edited:
Dustin K
Employee Cole B
Installed by:
Cole B
Employee Aidan B
Installed by:
Aidan B
Employee Daron K
Edited by:
Daron K
Employee Brian T
Written by:
Brian T
Employee Kyle M
Video by:
Kyle M

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