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Recommended Wiring Harness To Go With the Hopkins 7 and 4-Pole Trailer Connector  

Updated 12/15/2025 | Published 11/19/2024

Question:

can you point me to wiring harness for 2010 F150 that goes with this product 7- and 4-Pole Trailer Connector Socket w/ Mounting Bracket - Vehicle End Part Number: HM40975

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Expert Reply:

Hey Christian, with the 7- and 4-Pole Trailer Connector # HM40975 you can use the 4' Pigtail Wiring Harness for Pollak Replacement 7-Pole RV Socket # PK11998.

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Bryce D
Chris R. profile picture

Chris R.

12/15/2025

Hey Christian, how did the 4' pigtail wiring harness work with the 7- and 4-pole trailer connector on your F-150? Knowing how that combo turned out could help others trying to wire their trucks the same way.

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