Parts Needed on a 2003 Jeep TJ to Tow a Trailer with Brakes

Question

Question:

i am wondering if you sell a kit with trailer wiring harness,brake controller with controller harness my vehicle is a 2003 jeep tj, which controller would work best

asked by: DarylMcDonald

1

Helpful Expert Reply:

For your 2003 Jeep TJ you can use the wiring harness # 118409. This will provide you with a 4-way trailer connector. Then to add a 7-way use # ETBC7. The # ETBC7 will also include everything you need to wire your Jeep for a brake controller.

For a brake controller I suggest the Prodigy P2 # 90885. This is one of our best selling brake controllers ever because of how easy it is to use and how reliable it is. There isn't a custom wiring harness for your Jeep so it will need to be hardwired in. I've included a link that shows how to install the P2 along with the # ETBC7.

If you also need a ball mount the B&W Tow & Stow # BWTS10033B is an adjustable ball mount with two hitch balls. It'll provide either 3 inches of drop or 3-1/2 inches of rise. The best part about it is it will flip under the hitch for storage when not in use. If you'd also like a locking hitch pin you can use # BX8858.

expert reply by: Charles S

1

Answer 1

According to my calculations the distance from the center of the pin hole to the far end of the shank on Curt combo bar #E-9 is 3-1/2 inches. The bar is 6 inches long overall so from the center to the face of the receiver is 2-1/2 inches.

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Answer 2

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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Answer 3

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 4

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 5

If you just need a 4-pin to 7-pin trailer wiring adapter, then you can use part #C57672. This will plug into the 4-pin trailer connector on your brother's vehicle and give him the 7-pin socket for the trailer. Keep in mind, this will only give…

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Answer 6

The trailer brakes work on a separate circuit than the lights. You have a couple of options to control the electric brakes on the trailer. One option is to use an air over electric brake control, #HA100400C. This unit connects to the air brakes on…

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Answer 7

Thank you for providing the specs for the suspension components that you already have. Correct hanger spacing really depends on the components being used such as springs, hangers and equalizers. Most of the hanger spacing dimensions that we have are…

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Answer 8

You do have the option to utilize the air brakes on your 2023 Freightliner Cascadia to control electric trailer brakes using the Hayes Air Actuated Trailer Brake Controller, part #HA100400C. However, we mostly recommend just using an electric brake…

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Answer 9

To correctly measure a leaf spring, you'll want to jack the trailer up on jack stands so the axle is hanging freely, then measure directly across from the center of one spring eye to the other, as shown in the provided diagram. The height of the…

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Answer 10

To find the load capacity for your axle you should look on the trailer VIN plate or sticker that lists the VIN number. The weight rating of the axle should be listed on that same plate or sticker. Also, the axle could have a tag or plate on it that…

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Answer 11

For a single axle trailer, you want the shackle strap to be able to move so that you have the spring deflection needed for your suspension. Angled like the photo or even almost vertical is fine you just don't want the shackle strap to bind and…

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Answer 12

A factory 7-way trailer connector isn't all you need to power a trailer's electric brakes. You still need a brake controller. Some Ford F-150s are equipped with a factory integrated brake controller, which you may have. If your 2012 Ford…

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