Replacement Incandescent Bulb for Bargman Tail Lights - 1157 Double Filament

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• Functions for Filaments on Wesbar Replacement Incadescent Bulb # 30-90-157
  I spoke with my contact at Wesbar regarding the Replacement Incandescent Bulb # 30-90-157 referenced in your question. He stated the the longer of the two filaments is for the tail light/running lights and the shorter filament is for the brake lights. This is a standard 1157 dual filament light bulb that will work perfectly as a replacement for the Bargman 80, 92, and 1500 Series tail lights.
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• Will the Replacement 1157 Bulb Work for Both Left and Right Tail Lights
  A replacement 1157 bulb, like # 30-90-157 incandescent bulb, will replace both left and right bulbs in the tail light housings.
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• Different Types of Light Bulbs Used in Trailer Lights
  I do have options for you but there would be no way for me to know what type of light bulbs your trailer lights use. For trailer lights there are generally two types which are bayonet or push-in. Most taillights use a 1156 or 1157 bulb like part # 30-90-156 for single filament or part # 30-90-157 for dual filament. If your taillights have multiple functions for one bulb then you will need a dual filament light bulb. Marker or clearance lights on the other hand could use a variety of different...
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• Replacement 3157 Stop/Tail/Turn Bulb Needed for Popup Trailer
  The replacement 3157 bulbs that we have to offer come in LED, like part # P343157R-360, and Mini-Halogen, like part # P213157A. If you are looking fo 3157 bulbs that are incandescent, like part # 30-90-157, we unfortunately do not carry any, but I have linked our selection of LED and Mini-Halogen 3157 bulbs for you to look through. For incandescent bulbs you should be able to find some at your local auto parts store.
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• Availability of Bulb and Socket Taillight Kit for Flat Towed Vehicle
  It sounds like you're speaking of a bulb and socket kit like part # RM-155 from Roadmaster. Installation involves drilling a 1 inch diameter hole into the backside of your taillight assemblies and inserting another bulb. A wiring harness would run under the vehicle to the front, where the harness ends in a 4-pole connector to plug into the trailer connector on the tow vehicle. Keep in mind, not every vehicle will have enough room in the taillight assembly to allow for an additional bulb....
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• Right Side Tail Lights Dim Using Roadmaster Tail Light Wiring Kit with Bulbs
  In regards to the Roadmaster Tail Light Wiring Kit with Bulbs part # RM-155, I know you said you checked the grounds but the issue you are having points me in that direction. Therefore, I recommend you ground each light base to a new bare metal surface. If this does not fix your issue then inspect the filament inside the bulbs as well. Finally, if all is good here then test for voltage at the wires just before the bulbs as less than 12 volts would indicate you have a wiring issue. The...
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• Submersible Trailer Taillight Recommendation for a 1987 Ranger Trailer
  Without knowing what trailer lights you have on your 1987 Ranger trailer it would be hard for me to recommend the correct replacement taillight you would need. I attached a link to a page that has all of the red, submersible trailer lights we offer that you can check out so that you find the one that closest resembles what you have on your trailer.
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