How To Convert 4-Way On 2019 Mazada CX-9 To 7-Way Trailer Connector

Question

Question:

My 2019 Mazda CX-9 has a 4 pin male plug. I have already installed a 2inch Class III trailer hitch. I am looking to purchase a 2,500 pound camper with electric brakes. I have been looking at your site and am a bit confused. : Please advise what exactly from a wiring/brake/controller etc....should I purchase. Many thanks!

asked by: Michael S

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Expert Reply:

The only thing you need to convert the 4-way trailer connector on a 2019 Mazada CX-9 to a 7-way trailer connector is an adapter and the actual brake controller to control the brakes. For this, I recommend the Universal Installation Kit for Trailer Brake Controller part # ETBC7L and the Curt Echo Mobile Brake Controller part # C51180. This setup is a bit less cost effective then some more conventional setups but it also is much easier to install and does not require any splicing into the vehicle.

expert reply by: Conner L

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Answer 1

There is indeed a trailer hitch with a 2 inch receiver that fits your 2022 Mazda CX-9. It is from Curt, and I verified with them that the hitch is a fit for your '22; the correct part is the following: - Curt Trailer Hitch Receiver #C13284 The…

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Answer 2

If you have a power wire ran to your current 4-way wiring it's to power the taillights of your trailer from the battery instead of your vehicle taillights. The 12 volt power wire of the #ETBC7L is then for providing a 12 volt power source to the…

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Answer 3

The Saris Door County Bike Rack #SAR42RR will require power from a 7-way connector to be able to operate the lift mechanism for the bike rack. A 7-Way RV Upgrade Kit #ETBC7L can be added to the 4-way on their 2020 Toyota Highlander to receive power…

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Answer 4

We do have what you are needing, with a 7-way kit that does not have brake wire since you aren't going to be using electric trailer brakes, and only want the 12 volt power. What you can use is the following kit: - 7-Way RV Upgrade Kit #ETBC7L…

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Answer 5

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 6

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 7

Yes, we do. To add a hitch to your 2024 Toyota Grand Highlander, I recommend the Curt Trailer Hitch item #C26VV. This hitch is custom fit and bolts to your Toyota with included hardware. This is a class III hitch with a 2" receiver. It has a…

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Answer 8

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 9

Yep, so long as your 2024 Subaru Crosstrek Wilderness is not a hybrid both the Curt and etrailer hitches will fit: - Curt Trailer Hitch Receiver #C13382 - etrailer Trailer Hitch Receiver #e98912 The only difference besides price is the finish; the…

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Answer 10

To add a class III hitch to your 2024 Honda CR-V hybrid, I recommend the Curt Trailer Hitch item #C13397. This hitch is custom fit and bolts to your CR-V with included hardware. It is a class III hitch with a 2" receiver. I really like this…

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Answer 11

Class I and Class II hitches both have a 1-1/4 inch receiver opening. The difference is that a Class I hitch has a lower tongue weight rating, usually 200 pounds and a lower towing rating, usually 2,000 pounds. A Class II hitch usually has a tongue…

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Answer 12

Hey Antoine, so the two kits you mentioned are actually really similar and honestly I would go with the part #ETBC7 if I were you. The #ETBC7L is basically the same thing minus a couple wires and breakers so you may as well get the kit that has…

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