Recommended Proportional Trailer Brake Controller for Use with Tow Dolly with Electric Brakes

Question

Question:

I have a Master Tow car dolly with electric brakes, I need a controller. I will be installing it on Mercedes Sprinter RV. What do you recommend? Thanks

asked by: Jim H

1

Helpful Expert Reply:

The trailer brake controllers we most often recommend are the proportional type that slow the towed item (in your case the tow dolly with your 2011 Mini Countryman) at the same rate that the tow vehicle itself slows down. This proportional braking reduces the "tug of war" feeling between the dolly and the tow vehicle.

The two versions of our preferred Prodigy controller, the P2 # 90885 and the P3 # 90195, use the same internal technology but the P3 delivers this with additional user-friendly features including auto-leveling and storable brake settings you can call up at will. Either one works great with both electric drum brakes or even electric-over-hydraulic actuators.

In your Mercedes-Benz Sprinter the installation will be hardwired, using our install kit # ETBC7. If the Sprinter does not already have 4-pole wiring that too will be needed along with brake pedal switch # RM-751475.

Helpful articles on brake controllers and the install kit are linked for you.

expert reply by: Adam R

1

Answer 1

The Taskmaster Provider tires like part #TTWTRTM2257515D that you referenced are the best from Taskmaster and have proven to be a reliable and popular choice among trailer owners. This tire specifically features a load range D (2,540 lbs at 65 psi)…

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Answer 2

For a high quality brake controller at a good price I recommend the Redarc Tow-Pro Liberty Brake Controller #RED24FR. This is the same as the Tow-Pro Elite #RED44FR you were looking at with the exception of the user controlled mode, which is…

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Answer 3

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 4

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 5

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 6

Hey Jeremy, Typically with boat trailers the manufacturer will install hydraulic surge brakes because you don't have to worry about the water damaging wires like you would with electric brakes. That being said, if you use a heat shrink butt…

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Answer 7

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 8

The difference between an load range C and load range D tire in the same size is the capacity and psi rating. The two tires will still have the same dimensions and fit on the same wheel. The D rated tire has a higher capacity. For a ST175/80D13 like…

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Answer 9

The Redarc Tow-Pro Liberty #RED24FR is the way to go over the Elite #RED44FR as you get the nicer functions of the Elite at a lower price. The Elite has the ability to be the more preferred proportional style of controller as well as a time-delayed…

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Answer 10

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 11

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 12

Load range B trailer tires are going to have a lower capacity than C load range tires. Basically that, psi rating, and the ply rating are the only differences. A higher load range tire would last a little longer than lower load ranges of the same…

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Recommended Proportional Trailer Brake Controller for Use with Tow Dolly with Electric Brakes

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