Question:
Have a 7 pin round on truck male , need 7 pin round female to 5 round pin adapter !
asked by: Joe
Expert Reply:
A 7-Way round pin to a 5-Way round pin is a rare item indeed. There is no adapter that we carry that is going to work for you. What I recommend is to change the connector on the trailer end to match the one on the truck. For a 7-Way round pin, trailer side connector, use # PK11700. You will just need to make sure that the wires and function configuration mirror what is on the truck. You do not want to just go by color but by actual wire function. I have included a link to an FAQ article that might help.
expert reply by: Michael H
Have a question for the experts? click here.
Products Referenced in This Question
Pollak Heavy-Duty, 7-Pole, Round Pin, Trailer Wiring Connector - Trailer End
Product Summary:
Trailer Connectors
Trailer End Connector
Product Specs:
Plug Only
7 Round
Product Page this Question was Asked From
Adapter 7 Pole to 4 Pole and 5 Pole
Product Summary:
Wiring Adapters
Single Function Adapter
Product Specs:
Plug Only
7 Blade
4 Flat
5 Flat
Troubleshooting a Boat Trailer that the Left Light Assembly Does Not FunctionBrake and Turn Signals Are Not Working On Trailer Towed by a 2006 Honda RidgelineTroubleshooting a Trailer that Blows Vehicle Tail Light Fuses and Sparks When Touched to Hitch BallRight Turn and Brake Lights Not Working on a Horse TrailerBrake and Turn Signals Not Working With Hopkins Adapter # 37385Diagnosing Lighting Problem on Trailer Towed by 1995 GMC 1500 PickupRecommendation for Preventing Trailer Lights from Shorting Out when Backed Into WaterBoat Trailer Lights Go Out when Trailer Is Coupled to the Hitch BallDiagnosing and Repairing Malfunctioning Right-Side Tail Light on 4 x 8 TrailerAvailability of a 7-Way Round Pin to 5-Way Round Pin Trailer AdapterBrake Lights Not Working on Trailer Towed By 1996 Ford AerostarRunning Lights on Trailer are Not Working or On All the Time Using Adapter # 37385Troubleshooting a Wiring Issue on Older Harbor Freight Trailer Being Towed by a 2003 Honda OdysseyTow Ready Custom Wiring Harness Recommendation for a 2006 Dodge DurangoTrailer Brake and Turn Signals are Not Working but Running Lights WorkCan 4 and 5-Way be Used at Same Time for Boat Trailer and LED Light Strip on Adapter # 37385Hydraulic Trailer Brakes Locked Up When Backing Boat TrailerTroubleshooting Trailer Lights on an Older Trailer and a 2004 Chevy TahoeTrailer Lights Do Not Work when Connected to 2011 Chevy Silverado but Do Work with Other VehiclesTroubleshooting Trailer Right Turn and Brake Lights Not WorkingWith Trailer Running Lights On, All Lights Go Off when Applying Vehicle BrakesTrailer Brake Lights Not Working on a Trailer Towed by 2008 Isuzu N-SeriesRecommendation for a 7-Way to 4-Way Flat For a 2011 Honda Pilot and Boat TrailerOnly Left Side Brake and Turn Signals Working on Boat Trailer 
