Videos are provided as a guide only. Refer to manufacturer
installation instructions and specs for complete information.
4-1/4" Diam x 2-1/16" D; Sealed, waterproof; shockproof socket; flush mount w/required grommet; 3-prong plug connection; 1-bulb incandescent
This is a sealed, round combination stop, turn, and tail light. This red light measures 4-1/4" in diameter by 2-1/16" deep. Lens and housing are one unit that is sonically sealed and waterproof, providing protection to the heavy-duty, long-life bulb. The light features a shockproof socket, guaranteeing long bulb life. This light flush mounts and a separate, industry standard, three-prong plug is used for the wiring connection.. A mounting grommet and plug are required to complete the installation.
Manufacturer Cross Reference
Light will work as an exact replacement for:
Uni Bond # SE4000R
Wesbar # 423541
Truck Lite # 40282R/40202R
Grote # 52922
Peterson # 426R
Bargman # 40-01-001
Sealed red stop, turn and tail light for flush mount. Features sonically sealed, waterproof lens and housing in a single unit. Shockproof socket guarantees long bulb life. Accepts industry standard, 3-prong plug. Requires mounting grommet and plug for complete installation.
Video of Sealed, 4" Round Trailer Stop, Turn and Tail Light, Flush Mount, 3-Function
Videos are provided as a guide only. Refer to manufacturer
installation instructions and specs for complete information.
Today we are going to review part number ST45RB. This is the Optronics sealed four inch round trailer stop, turn and taillight. This is a flash mount light. This is sealed round combination stop, turn and taillight. This red light will measure 4-1/4 in diameter and the overall depth because it rounded. Its hard to measure but it will give you an overall depth of 2-1/16.
The lens and the housing are one unit. It is sonically sealed and water proof. This will provide protection to the heavy-duty long life incandescence bulb inside. The light does feature shockproof socket, which will guarantee long bulb life. This light will flash mount using a mounting inaudible which is sold separately and it will connect by using a industry standard three prong plug which is also sold separately and what we are going to do is give you an idea of the brightness of the bulb or the taillight.
Well plug in the three-prong connector and I have a power supply here. Well connect the ground, white to ground and the black will be the taillight. Itll give you an idea of the taillight brightness. Then well do the stop and turn. Theres the brightness of the stop and turn.
Then Im going to turn off the overhead lights to give you an idea of the brightness in the dark. This is the regular taillight function. That will be the stop and turn function. That should do it for part number ST45RB.
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Average Customer Rating: 
4.8 out of 5 stars (24 Customer Reviews)
by: Wendell Harris03/11/2013
Is this review helpful?
Product seemed to work very good, but I was unable to get it mounted on my trailer. I must have not ordered the right light or extra materials for mounting. Other than that, good product.69938
There is a grommet listed in the related products section on the right side of this page. The grommet will be needed if you do not already have one or the old one is no longer usable.There is a bracket also available if this light is not going into a pre-existing mounting hole.
Patrick B - 3/15/2013 by: Terry03/07/2013
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Quality product and quick service. 69427
by: Jeremy02/25/2013
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Exactly the part I was looking for, delivered in perfect condition. Website gave very detailed information making it easy for me to find the replacement part I was looking for.67726
by: Regina02/12/2013
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We had to hardeat time fonding this light where we live. However I happened to find the exact light needed for our 2008 Montego Bay 5th wheel on this website. The site provide very accurate information to order the correct light. Thanks!66002
by: Roy11/25/2012
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Just got the camper home from a work trip. ordere before I finished the job, the wife brought them to me fast delivery very good price. couldnt find them local I got a pair of nerf bars s.s./w lights early summer Nice Very Nice also had fast shipment on those thats why I came back. Very good vendor Thanks Roy60003
by: Kevin11/16/2012
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Product is exactly as described and works great! Thanks.59511
by: Brent C.08/31/2012
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Good products Good prices Good service 53714
by: James Schulz08/24/2012
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Outstanding product and excellent shipping. I received the lights yesterday and was extremely happy with what I received. Exactly what I ordered. Thanks a million for the outstanding service.52964
by: Chuck Mitchell06/11/2012
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Items were shipped the day after I order them.The lights were excellent and worked very well. Thank you ETRAILER.43681
by: John K.05/04/2012
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A light is a light is a light. This was the one I needed and made my trailer happy Thanks39409
by: rick g.02/24/2012
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great 32404
by: TomE02/11/2012
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Parts were as advertised, fairly priced and quickly shipped. Very good service. Will continue to do business with etrailer.31449
by: Gary10/26/2011
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Outstanding service with no mistakes!!! 26125
by: rex g10/20/2011
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perfect match for my old lights and fast shipment.25854
by: Dan R07/24/2011
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Quick shipping and worked as advertised. 20126
by: Ronnie H.06/22/2011
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excellent product at a fair price 17669
by: Jon W.06/01/2011
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Product was shipped next day and arrived earlier than I expected, even on a holiday weekend! Very impressed with thier overall service. I will be ordering from them again when the time comes. The product was exactly as discribed and was a perfect replacement for the factory original.15832
by: Rick05/20/2011
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Product delivered on time and all items correct. Product fit and works perfect. 14882
by: Gena C.05/16/2011
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Fit my trailer and works! Couldn't ask for more.14394
by: Craig S.05/16/2011
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Just what I needed. Perfect replacement. 14324
by: Steve W.05/13/2011
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the tail light worked as expected. just plug it in and go. the grommet did not fit so i used the old one. apparently the grommet size needed varies with applicaiton.13805
by: Edwin G.05/11/2011
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I am a new RV owner, and discovered 1 taillight not working on recently purchased dolly trailer. After finding your web-site in magazine, and ordering replacement lens, was pleasantly surprised on the quick response and delivery of replacement. 13506
by: Jay05/10/2011
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can't remember getting parts so fast without additional charges. the cost of the items were better than i had expected as well. had the parts in two days....13160
by: lance05/22/2009
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bright easy to install nice unit . received in good order1874
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