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Peterson Trailer Tail Light - Submersible - Stop, Tail, Turn - Incandescent - Oval - Red Lens
Peterson

Peterson Trailer Tail Light - Submersible - Stop, Tail, Turn - Incandescent - Oval - Red Lens

Part Number: M421R
In Stock
$14.77
Trailer Lights
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6-1/2" x 2-1/4" Oval. Waterproof, incandescent trailer light functions as a stop, tail, and turn signal light. Recessed mount with grommet (sold separately). Accepts 3-prong plug. Great Prices for the best trailer lights from Peterson. Peterson Trailer Tail Light - Submersible - Stop, Tail, Turn - Incandescent - Oval - Red Lens part number M421R can be ordered online at etrailer.com or call 1-800-940-8924 for expert service.
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Peterson Trailer Lights - M421R

  • Tail Lights
  • Oval
  • Incandescent Light
  • Red
  • 6-1/2L x 2-1/4W Inch
  • Brake/Tail/Turn
  • Non-Submersible Lights
  • Recessed Mount
  • Peterson

6-1/2" x 2-1/4" Oval. Waterproof, incandescent trailer light functions as a stop, tail, and turn signal light. Recessed mount with grommet (sold separately). Accepts 3-prong plug.


Features:

  • Combination trailer tail light serves 3 functions when properly mounted
    • Stop light
    • Tail light
    • Turn signal light
  • Sealed housing and lens unit is submersible
  • Durable polycarbonate housing
  • Red lens over incandescent bulb
  • Compatible with 12V DC systems
  • Recessed mount with grommet (421-18 - sold separately)
  • Accepts industry standard 3-prong plug (431-491 or 421-491 - both sold separately)
  • DOT compliant
  • Made in the USA


Specs:

  • Overall dimensions: 6-1/2" long x 2-1/4" tall x 2-3/8" deep
  • Bulb type: incandescent
  • Power draw at 12.8V: 2.1 amps
  • 1-Year limited warranty


Peterson 421R Oval Tail Light Dimensions

PL-3 Wiring Connection

Optronics PL-3 Connection

This light has an industry-standard PL-3 connection as pictured above. The light accepts a 3-prong plug (sold separately).


Sealed, Waterproof Trailer Light

The waterproof construction of this light makes it ideal for use on trailers that may be submerged, like a boat trailer. The circuit board is sealed, which means that water will not damage the diodes or circuit board.


Recessed-Mount Light

Recessed Grommet Mount Trailer Light Installation Diagram

Recessed-mount trailer lights install with a grommet, which is often sold separately. These lights extend past the trailer surface and require a hole for installation. If replacing a light, you can utilize the pre-existing hole. If installing a new light, you will need to cut a hole or use a mounting bracket (sold separately) to complete the installation.



M421R Peterson Trailer Tail Light - Submersible - Stop, Tail, Turn - Incandescent - Oval - Grommet Mount - Red Lens




California residents: click here


Customer Satisfaction Score:

Ratings & Reviews

4.8

1099 reviews
6-1/2" x 2-1/4" Oval. Waterproof, incandescent trailer light functions as a stop, tail, and turn signal light. Recessed mount with grommet (sold separately). Accepts 3-prong plug.

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Very well made



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just what I wanted.And FAST!!!



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1099
Show More Reviews

See what our Experts say about this Peterson Trailer Lights

  • Dimensions of the Petersen Trailer Tail Light
    Hey Michael, the Petersen Trailer Tail Light # M421R measures 6 1/2" wide, 2 1/4" tall, and 2 3/8" deep. I have attached a diagram for you to check out as well :) If you need anything else, please feel free to drop a comment and let me know!
    view full answer...
  • Replacement Light for a Peterson Manufacturing 421H 6.5" Oval Trailer Tail Light
    Hey Hunter. From what I could find online the Peterson 421h is a 6.5" oval, surface-mount stop, turn, and tail light. To replace it, I recommend the Peterson LumenX LED Trailer Light item # M821R-10. This submersible LED light measures 6-1/2" long x 2-1/4" tall x 1-7/16" thick. It uses a PL-3 connector that works with the 3-prong plug item # 421-491. The Peterson LumenX item # M821R-10 provides brake, tail, and turn signal functions. It is sold individually. It has 10 built in diodes that...
    view full answer...
  • Optronics LED GloLight Replacement for Peterson M421R Grommet Mount Trailer Tailllight
    The Peterson 421R which we carry as part # M421R is a grommet mount 3 function taillight. Optronics does indeed offer an LED GloLight that would work as a replacement, which is available as part # STL111RB. You'll also need the wiring pigtail, part # A45PB. If you need the mounting grommet, they're available as part # A70GB. You can see a product video for the # STL111RB GloLight by using the provided link.
    view full answer...
  • Does Power Need to Be Removed From Submersible Light Before Backing Into Water
    To replace your Peterson M421R light you'll need the Peterson Trailer Tail Light # M421R. This installs with a simple plug in the back so the installation itself should be pretty easy to do. Just be sure to unplug your trailer wiring prior to backing into the water next time. The submersible rating on the light means the light won't be ruined if it touches water, but you still need to disconnect the power since water can short circuit the light.
    view full answer...
  • Replacement Tail Lights and License Plate Light for a Triton PWC LTWC1 Trailer
    We sure do Brad! To replace a rear tail light on your Triton PWC LTWC1 trailer, I recommend the Peterson LumenX LED Trailer Tail Light item # PET32NV. This is the LED upgraded version of the item # M421R that came stock on your trailer. The Peterson LumenX LED Trailer Tail Light item # PET32NV has identical dimensions. However, it is going to be much brighter and last longer. For the slight increase in cost compared to an incandescent replacement, I strongly suggest this upgrade. It does...
    view full answer...
  • Is Etrailer Logo Removable from Peterson Trailer Lights
    The etrailer logo is a sticker placed on the Peterson Clearance lights # M146R for photo and video use. This line of lights including # M142R and # M421R does not come with the sticker. If you do by chance receive a product with this sticker it is easily removable.
    view full answer...

Do you have a question about this Trailer Light?


Info for this part was:

Employee Jacob T
Video Edited:
Jacob T
Employee Kathleen M
Installed by:
Kathleen M
Employee Aidan B
Installed by:
Aidan B
Employee Daron K
Edited by:
Daron K
Employee Brian T
Written by:
Brian T
Employee John S
Video by:
John S

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