Replacement Pollak RV-Style 7 way Connector Recommendation for a 2011 Airstream Interstate

Question

Question:

Thank You for your past great service. I have a broken Pollak OEM vehicle side connector on my 2011 Airstream Interstate - a Mercedes Benz Sprinter van motorhome conversion. Pollak designation is PA66-MD40. A photo of the vehicle wiring harness connector side is attached. Is it possible that you stock this or can lead me to the next best physical fit. Thank You very much.

asked by: George S

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Expert Reply:

I spoke with my contact at Pollak and he stated that the Pollak Replacement 7-Pole, RV-Style Trailer Connector Socket, # PK11893-11933 is the correct replacement part for your 2011 Airstream Interstate.

expert reply by: Jameson C

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Answer 1

Are you certain it is a Pollak PA66-ND40 as opposed to a Pollak PA66-MD40? The only reason I ask is we do have a replacement for the MD40, which is the Pollak Replacement 7-Pole, RV-Style Trailer Connector Socket #PK11893-11933 which we know has been…

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Answer 2

I spoke with my contact at Pollak and he stated that the Pollak Replacement 7-Pole, RV-Style Trailer Connector Socket, #PK11893-11933 is the correct replacement part for the Pollak PA66-MD40 that you have.

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Answer 3

The purple wire you are referring to is the reverse light circuit, this circuit is usually used as a reverse lockout circuit for trailers with surge brakes so they can be reversed without activating the brakes of the trailer. Or sometimes it is used…

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Answer 4

Typically the heavier gauge trailer wiring circuits are for the brake output circuit, the ground wire, and the 12 volt accessory circuits as they draw the most amperage. The other circuits are all taillight circuits which typically don't draw as…

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Answer 5

I recommend checking your functions based on the plug location using a circuit tester like #PTW2993 to confirm power transfer. If you are getting power when trailer is not connected and power on the lead wire function, then the ground may be the…

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Answer 6

I attached a picture that has a 7-way wiring diagram for you to check out. It has the two different wiring color standards seen too.

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Answer 7

Yes, you can use 10 gauge wire like the part #10-1-1 (sold by the foot) to wire up the 7-way part #HM48480 or #HM48500. Typically people use 10 gauge wire for the 12 volt accessory, brake output, and ground circuit and then use 12 for the remaining…

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Answer 8

The Pollak Black Plastic, 7-Pole, RV-Style Trailer Connector - Trailer End #PK12706 will match the colors and locations of the attached photo. I've also attached a wiring article to assist further if the colors don't match functions correctly…

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Answer 9

The difference between the Class II and Class III hitches has to do with their Gross Trailer Weight (GTW), their Tongue Weight (TW), and their Hitch Receiver Size. Class II trailer hitch receivers have a 1-1/4 inch receiver and can be rated up to…

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Answer 10

For sag from towing a trailer the best recommendation I can make is actually a weight distribution system. Suspension enhancement will help level your truck while towing. But the advantage to a weight distribution system is that it levels the vehicle…

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Answer 11

The OEM prep package consists of 4 "pucks" in the bed of the truck that will allow you to drop in puck style hitches for easy installation and removal, that gives you a completely clear bed when not in use. The B&W Companion OEM 5th…

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Answer 12

Hello Barry, Since you already have a weight distribution (WD) hitch and are only experiencing a little rear sag, I recommend going with SumoSprings. I typically only suggest Timbrens for those who are towing heavy loads regularly, as they can create…

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Replacement Pollak RV-Style 7 way Connector Recommendation for a 2011 Airstream Interstate

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