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

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

Part Number: 421KRUS
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$15.59
Retail:$46.16
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6-1/2" x 2-1/4" Oval. Waterproof, incandescent trailer tail light functions as a stop, turn, and tail light. Durable polycarbonate lens is welded to housing. Flush mount with included grommet and industry-standard 3-prong plug. (1) Bulb. Great Prices for the best trailer lights from Peterson. Peterson Trailer Tail Light Kit - Waterproof - Stop, Turn, Tail - Incandescent - Oval - Red Lens part number 421KRUS can be ordered online at etrailer.com or call 1-800-940-8924 for expert service.
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Peterson Trailer Lights - 421KRUS

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

6-1/2" x 2-1/4" Oval. Waterproof, incandescent trailer tail light functions as a stop, turn, and tail light. Durable polycarbonate lens is welded to housing. Flush mount with included grommet and industry-standard 3-prong plug. (1) Bulb.


Features:

  • Trailer light provides 3 functions:
    • Stop, turn, and tail light
  • Sealed, waterproof housing and lens unit
  • Red lens over incandescent bulb
  • Compatible with 12V DC systems
  • Flush mount with included grommet
    • Mounts in any 360-degree position
  • Industry-standard 3-prong plug connects light to trailer
  • Made in the USA


Specs:

  • Dimensions: 6-1/2" long x 2-1/4" tall x 2-3/8" thick
  • Bulb type: dual-filament
  • Power draw at 12V:
    • Stop/turn: 2.1 amps
    • Tail: 0.59 amps
  • Limited 1-year warranty


Peterson 421 Trailer Tail Light Dimensions

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.



421KR Peterson Trailer Tail Light w/ Grommet and Plug - Waterproof - Stop, Turn, Tail - Incandescent - Oval - Red Lens

Replaces 436800




California residents: click here


Customer Satisfaction Score:

Ratings & Reviews

4.8

952 reviews
6-1/2" x 2-1/4" Oval. Waterproof, incandescent trailer tail light functions as a stop, turn, and tail light. Durable polycarbonate lens is welded to housing. Flush mount with included grommet and industry-standard 3-prong plug. (1) Bulb.

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just what I wanted.And FAST!!!



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Show More Reviews

See what our Experts say about this Peterson Trailer Lights

  • Amp Load of Peterson Trailer Turn Signal Light # 421KRUS
    The Peterson Trailer Turn Signal Light # 421KRUS is an incandescent light that draws a max of 2.1 amps. I have added a link to a video review of this light for you to take a look at as well.
    view full answer...
  • Is The Peterson 421KRUS Offered In Amber?
    I do have another option that will match what you need, but Peterson does not offer an amber light to match the # 421KRUS, unfortunately. With that said, you will want the Optronics # ST70AB. This incandescent light is the exact same size as the Peterson (6-1/2" x 2-1/4"), but it does not include the gasket or wire. For that you will need the # A70GB and # A47PB.
    view full answer...
  • Replacement Tail Lights for a Kaper 1T-L6R Taillight
    To replace your Kaper 1T-L6R taillights you are going to want to use the Custer Trailer Tail Light - Submersible - Stop, Turn, Tail - Incandescent - Oval - Red Lens item # G65R. These lights are 6-1/2" long x 2-5/16" tall x 2-1/2" thick.
    view full answer...
  • Can The Bulb In A Peterson 421KRUS Tail Light Be Replaced
    The Peterson Trailer Tail Light # 421KRUS is a sealed waterproof unit, but the bulb will technically replaceable. However, removing the cover to gain access to the bulb will damage this seal and the light will no longer be waterproof, so I do advise replacing the entire light if the bulb has gone out. If you do choose to just replace the bulb and break the waterproof seal, I spoke to Peterson and the bulb that fits this light will be the 1157 style bulbs, like the Diamond # DI79VR.
    view full answer...
  • Grommet Dimensions of the Peterson Light # 421KRUS
    The Peterson Light part # 421KRUS that you referenced includes a grommet that measures 7-5/8" L x 3-3/8" W x 1-1/8" D. Check out the review video I attached for more info as well.
    view full answer...
  • What Size Oval Taillights Fit in Buyer's Products 337LB383ALDT Taillight Mounting Box
    The Buyer's Product # 337LB383ALDT taillight mounting box uses a standard 6-1/2 inch oval grommet mounted tallight like those included with the Optronics Fleet Trailer Taillight kit, # 337LB383ALDT. The kit includes the lamps, grommets and wiring pigtails. The lamps have 6 LED's each, and are sealed to prevent water intrusion. They are much brighter than incandescent lamps, draw only a fraction of the power and will last 50 times longer. If you'd rather use incandescent lamps, I'd recommend...
    view full answer...
  • How Does Light Assembly of Peterson Trailer Turn Signal Light # 421KRUS Uninstall
    The light assembly of the part # 421KRUS needs to come out first and then you can remove the rubber grommet. The lip on the grommet prevents it from being able to pull out when the assembly is holding that lip firmly to the cut out of the trailer. You'll want to push the light from behind the assembly out if you can access it or you might need to gently use a flat head screwdriver to pry it out.
    view full answer...
  • Troubleshooting New LED Trailer Tail Lights Not Working
    No, you do not need to add a converter to your 2011 Ford Ranger for the new LED lights on your trailer to work. If you are not getting power, I recommend double checking that your trailer connector has power by using a circuit tester like the # PTW2993 while the turn signals, then brake lights, and lastly the running lights of your vehicle are turned on. If the vehicle connector has power but the trailer lights are still not working you will need to double check that the lights were wired...
    view full answer...
  • Troubleshooting Malfunctioning Marker Lights on Trailer
    First, check to see if any of the other marker lights are working. If not, check that the running lights are working at the rear of the trailer, as they're all on the same circuit. If none of the running/marker lights are working, unplug the trailer and check the running light pin on the vehicle's trailer connector while the headlights are switched on, using a circuit tester like part # PTW2993. If you get power on the running light pin, the problem is in the trailer wiring. If it's...
    view full answer...
  • LED Trailer Taillight Replacement for Peterson 421KRUS
    Hey Westley, we carry the Peterson part # 421KRUS which is a pretty standard size trailer taillight so for a kit that will replace that in LED we have the part # TLL12RK.
    view full answer...


Info for this part was:

Employee Mike L
Expert Research:
Mike L
Employee Jameson C
Expert Research:
Jameson C
Employee Joshua S
Video by:
Joshua S
Employee Jacob T
Video Edited:
Jacob T
Employee Laura H
Updated by:
Laura H
Employee Wilson B
Updated by:
Wilson B
Employee Brian T
Updated by:
Brian T
Employee Ryan G
Installed by:
Ryan G

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