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Can I Use Both Plugs on the Pollak 7 and 4 Pole Trailer Connector # HM40975 At The Same Time


Can you use both the 7pin and the 4pin, at the same time?


Expert Reply:

I contacted our representative at Hopkins about the Pollak 7 and 4-pole Trailer Connector, part # HM40975. The representative informed me that you cannot use the 7-Way and 4-Way plugs at the same time as the two doors do not open up enough.

Part # HM40975 will fit the 2010 GMC 1500, 2500, and 3500 series.

I have linked an installation video of the # HM40975 connector for reference.

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