Adapter 7 Pole to 4 Pole with Tester and Cover

Hopkins Wiring - 47345

If your truck has the connector on the left, and your trailer has the connector on the right, you will want this adapter.
Vehicle End	Trailer End

Similar to 18142 and 30702

Video of Adapter 7 Pole to 4 Pole with Tester and Cover

Videos are provided as a guide only. Refer to manufacturer
installation instructions and specs for complete information.

Hopkins 7 Pole to 4 Pole Adapter with Tester Review

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Adapter 4 Pole to 7 Pole and 4 Pole$22.95

Adapter 7 Pole to 4 Pole and 5 Pole$18.95

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Ask the Experts about this Hopkins Wiring
Do you have a question about this Wiring?

• What do I need to Convert a 4-Way to 7-Way Trailer Connector on a 2005 Lincoln Navigator
  
• You would use 4-way to 7-way adapter, part # 30717. You would extend the yellow lead on the adapter and tap it into the reverse light circuit on your Navigator. The easiest way to access this circuit is from behind the taillight assembly. White will need to be connected to to the Navigator frame for ground. Since you have surge brakes, the blue wire is not need and can be taped up. The black wire is for providing a 12V power feed from the vehicle to a battery or electrical system on the trail
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• 7-Way on Vehicle to 4-Way Trailer Plug Type Adapter for a 2004 GMC Envoy SLT
  
• The Adapter 7 Pole to 4 Pole with Tester and Cover, # 47345, will fit your 2004 GMC Envoy SLT, as long as the factory plug is a 7-Way, blade type (and it more than likely is). We also have the Pollak 7 Pole to 4 Pole Connector Adapter, # PK12716. Another option is the Adapter 7 Pole to 4 Pole with LED Nite-Glow (TM), # 37335 (kind of neat as it lights up with the taillights). There are several more. I have included a link below that will take you to them.
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• Purpose of Lights on 7 to 4-Way Trailer Connector Adapter Part # 47345
  
• The lights in the adapter will tell you that the vehicle itself is sending the proper signals for the directionals, running lights and brake lights. These lights are useful to eliminate the vehicle as being the cause of any wiring problems. It will not tell you of any trailer wiring issues. If the lights in the adapter indicate that the signals coming out of the vehicle are all operating correctly, but the trailer lights are not working you will have to troubleshoot the trailer. To do this, s
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• Installing 7-Way Trailer Wiring for a Gooseneck Trailer in the Bed of a 1999 Chevy Silverado
  
• You could use the 7-Way Pre-Wired Car Connector, # 20023, and hardwire it by function into the existing 4-flat wiring. You will need a circuit tester like the Quickee # 3808 to find the wire functions. If your 1999 Chevy Silverado has the round plug with a cap above the spare tire, you can use Replacement Multi-Tow 7-Way and 4-Way Trailer Connectors, # 30955. This connector will plug into the factory connector. You could then route the harness up inside the side of the bed, and drill a hole t
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• Will The Hopkins Adapter 7 Pole to 4 Pole, # 47345, Fit On My 1996 Chevy Truck
  
• The Hopkins Adapter 7 Pole to 4 Pole, # 47345, will work on your 1996 Chevy Truck as long as you have a 7-Way flat pin (or blades) connector on your truck. This adapter will plug into your 7-Way and give you a 4-Way connector on the back of your truck.
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• What Do Each of the Lights on Adapter 7 Pole to 4 Pole with Tester and Cover # 47345 Indicate
  
• The test lights on the 7 to 4-Way Adapter # 47345 will illuminate when there is a signal showing that the circuits are working (on the vehicle side). The bottom one will light up when the running lights are working. The center light will illuminate when the left turn signal and brake lights are working. And the top light will illuminate when the right turn and brake lights are working.
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• What is the Diameter of Adapter 7 Pole to 4 Pole with Tester and Cover, # 47345
  
• I went out to the warehouse and measured an Adapter 7 Pole to 4 Pole with Tester and Cover, # 47345. It has a diameter of 1-5/8 inches. With that said, it is designed to fit in a standard RV-style 7-Way trailer connector. So if your vehicle has a 7-Way, chances are it is an industry standard size and it should fit. If the connector on your vehicle is a different size then you could replace it with Hopkins Endurance Multi-Tow 7-, 5- and 4-Way Flat Trailer Connector, # HM48470, and you would not n
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• Adding a 7-Way Trailer Connector and Brake Controller to a 2008 Nissan Pathfinder
  
• In order to add a 7-Way trailer connector to your 2008 Nissan Pathfinder you will need a 4 and 7 Way Installation Kit, # ETBC7. This will provide a 7-Way trailer connector at the back of the vehicle and all of the wiring to install a brake controller. A brake controller is needed in order to activate the trailer brakes. For a brake controller, I recommend the Tekonsha Prodigy P2, # 90885. It is one of our most popular models because it is easy to set up and easy to use. I have included a link
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• What are the Functions of the Black and Purple Wires Hopkins Plug-In Simple # 47185
  
• The black wire is the 12 volt power source that you could use to help maintain the charge of a battery or for any other 12 volt accessory. I would recommend that you use 10 Gauge Blue Primary Wire, part # 10-1-1, through a 40 amp. In-Line Circuit Breaker, part # 9510, to your 2003 Dodge Ram Van battery. The purple wire will have power when your tow vehicle is in reverse. Typically this circuit is used trailer backup lights, or a reverse lockout solenoid on a trailer with surge brakes. I
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• Adapter/Tester Part # 47345 Shows Lighting Circuits Not Working on 2008 GMC Sierra
  
• You will need to start by determining if the problem is on the vehicle itself or on the trailer. I would recommend using a tester like part # 3808 on each pin of your 7-way trailer connector. Unplug the adapter, and test each pin as its function is activated. Activate the left turn signal, and test the pin in the 9:00 position. Activate the right turn, and test the pin in the 3:00 position. Turn on the running lights, and check the pin at the 10:00 position. Then, plug in the adapter and tes
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• 7-Way to 4-Pole Tow Bar Wiring Adapter Needed to Connect RV to Vehicle
  
• The adapter needed will depend on which 4-pole connector is used on the vehicle. For a 7-way to 4-pole flat connector, use part # HM47065. If the 4-pole connector has the round plug, use the 7-way to 4-pole round adapter, part # HM47043.
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• Adapter to Convert 6-Pole Connector to 4-Pole Connector
  
• There are many products to adapt a 6-pole round vehicle connector to a 4-pole flat trailer connector. One such item is the Pollak 6 Pole to 4 Pole Connector Adapter, part # PK12717. This nylon housing adapter simply plugs into your 6-pole connector. Another product you might consider is the Hopkins Endurance Flex Trailer Connector Adapter w/ LED Circuit Tester - 6-Pole to 4-Pole, part # HM47320. This adapter includes a 5 inch flexible wire between the 6-pole and 4-pole connectors that can mak
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