Adapting 5 Pin Round Connector on a Trike to 4-Pole Flat Trailer Connector

Question

Question:

My trike came with a round 5 pin connector. My trailer has a flat 4 pin connector. I have not been able to find an adapter anywhere. Any suggestions?

asked by: Brian

1

Helpful Expert Reply:

I have some options for you, however, I am not familiar with an adapter to convert a 5 pin round trailer connector to a 4-pole flat trailer connector. Since your trike has a 5 pin trailer connector, the extra wire on your 5 pin connector will serve one of two purposes. It is either the brake light signal or a constant 12-volt power feed to the trailer.

You can easily determine which case you are dealing with by using a circuit tester like part # PTW2993 on the plug. Activate the turn signals, running lights and brakes to determine which pin carries which circuit. If the extra pin carries a constant 12-volts, and your trailer does not require any power supply, you could simply construct an adapter using parts # PK11501 and # 18172.

If the extra pin carries the brake light circuit, then I recommend replacing the 5 pin round connector with a 4-pole flat trailer connector to match the trailer. For this, you will need a tail light converter like part # 119250KIT. Your trailer uses a combined wiring system, meaning the brake lights and turn signals are carried on the same wire. To install the tail light converter, you will simply remove your existing 5 pin connector, connect the brake light wire to the red wire, the left turn wire to the yellow wire, right turn to green, tail lights to brown and ground the white wire. The black wire will run to the positive battery post via the included fuse holder.

expert reply by: John H

1

Answer 1

The Pollak 5-Pole, Round Pin Trailer Wiring Sockets, item #PK11502, and #PK11501, do not have a standardized wiring configuration. I normally direct my customers to the 6-way wiring configuration, eliminating the middle pin. Start by wiring the top…

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Answer 2

The outside diameter of the Pollak 5-pole Round Trailer Connector, part #PK11501 measures .80 inches.

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Answer 3

Although we don't offer an adapter, you could construct one very easily. What does the 5th circuit from the 5 pin round connector on the bike power? I'm assuming that the circuits are ground, right turn, left turn, running lamps and brake…

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Answer 4

Once you remove about 1/4" of the jacket from the wire you will want to twist the strains together to form a stronger bond and then insert that into the Pollak 5-Pole Round Pin Trailer Wiring Connector part #PK11501 and tighten down the screw.…

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Answer 5

In the Pollak Wiring Socket #PK11502 the wires are inserted into the sides of the posts and there is a screw on the end. See the picture I've attached.

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Answer 6

Since motorcycles have separate turn signals and brake lights they will only work with a trailer that either also has a separate system or would require a converter to make the trailer and bike compatible. Right now, the separate brake light circuit…

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Answer 7

Although we do not carry a wiring harness/adapter that will allow you to split the 5-flat on your tow vehicle to allow you to connect to both the 5-flat on the trailer and the 4-round on the boat, I have a solution for you. You will need the…

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Answer 8

If both your truck wiring and your boat trailer wiring are 5-pin flat type connectors such as those in part #HM47890 you should not need an adapter. If I misunderstand your question I am sorry. Maybe you'd care to send some photos? You can…

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Answer 9

The trailer connector on your Honda Goldwing is set up for a trailer with separate circuits meaning brake lights and turn signals are on different circuits. The trailer that you have has combined circuits; the brake lights and turn signals are on the…

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Answer 10

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 11

A 4-Way trailer connector has the basic lighting functions only; running lights, left turn signal and brake lights, right turn signal and brake lights, and ground. A 7-Way has these functions and a 12 volt circuit, a circuit for electric trailer…

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Answer 12

In order to determine the torque rating for the lug nuts on your trailer you will need to know check out the chart I attached that shows all of the torque specs for all the trailer lugs available based on stud size, wheel material and wheel size.

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Adapting 5 Pin Round Connector on a Trike to 4-Pole Flat Trailer Connector

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