- Rating:
Recommends this product
Well engineered, easy to install
A convenient and easy way to connect a 4-wire flat to a 7-way spade or 4-way flat.
Recommends this product
Well engineered, easy to install
Recommends this product
It worked well and was easy to install, but mine didn't come with any of the bolts. So we had to find our own
Recommends this product
Excellent product and fast delivery. Very pleased.
Recommends this product
Worked as advertised. Originally saw the product on a U-Haul YouTube video.
A convenient and easy way to connect a 4-wire flat to a 7-way spade or 4-way flat.
Recommends this product
Well engineered, easy to install
Recommends this product
It worked well and was easy to install, but mine didn't come with any of the bolts. So we had to find our own
Recommends this product
Excellent product and fast delivery. Very pleased.
Recommends this product
Worked as advertised. Originally saw the product on a U-Haul YouTube video.
I have a 2023 Wilderness Subaru Outback that will be receiving the Reliance Braking System and the 7-Way Type & 4-Way Flat Connector. Will the mechanic need to run the brake wiring from the hitch area all the way to the front of the vehicle or is the 2023 Subaru Wilderness Outback 4-Pin equiped with the brake wire near the hitch that came with the vehicle. If the brake wiring needs to be run from the hitch area all the way to the front, where do they run the wiring? under or through the car panneling up to the front of the car? Is there an area on the front console of the Wilderness available to receive the Reliance Brake Contoller box? If not, will I be able to determine where they place it for cosmetics and easy access?
Hey Tom! I would suggest contacting your local U-Haul Center and speaking to the hitch pro. Have a great day!
Does this work for a 2011 gmc Acadia
Hi Shell. We have a few different wirings available for the Acadia. Please contact your nearest U-Haul Hitch Center or 800-468-4285 for further assistance.
What is required for a Brake hook up for camper trailer?
Hi there. Please contact your nearest U-Haul Center or 800-468-4285 to get this needed information. We will need to gather more information about the camper trailer.
Will this connector work for both RV and equipment type trailer plugs?
Please visit our Trailer Hitches page and enter your vehicle specifications to see all available and compatible hitch models as well as compatible accessories and towing components. Thank you!
will this work on a 2020 jeep grand Cherokee trackhawk
Good afternoon, This is a universal plug.
Does your team handle the installation?
Hi Rick, Yes! U-Haul installs a wide variety of hitch and towing components. Please contact your local U-Haul Hitch Center to schedule an installation and to receive a pricing quote. Thank you!
Hi Rick, Yes! U-Haul installs a wide variety of hitch and towing components. Please contact your local U-Haul Hitch Center to schedule an installation and to receive a pricing quote. Thank you!
Will this work on 2020 BMW X5
Good Morning Mike, Please visit our Trailer hitch page to determine the wiring that works for your vehicle. Please visit our Trailer Hitches page and enter your vehicle specifications to see all available and compatible hitch models as well as compatible accessories and towing components. Thank you!
Good Morning Mike, Please visit our Trailer hitch page to determine the wiring that works for your vehicle. Please visit our Trailer Hitches page and enter your vehicle specifications to see all available and compatible hitch models as well as compatible accessories and towing components. Thank you!
I am getting a for pin installed this weekend. Will this product work for a trailer that has brakes on it? Will it control the brakes?
Please visit our Trailer Hitches page and enter your vehicle specifications to see all available and compatible hitch models as well as compatible accessories and towing components. Thank you!
How long is the cord?
Hello Sue, The wires are typically 8-14 inches long depending what the wire connects to. Ex: The ground wire will always be longer. Thank you for your question.
Will this work with my 1999 Range Rover 4.6 HSE? If not, which one will? Thank you.
Good Morning Mike, Please visit our Trailer Hitches page and enter your vehicle specifications to see all available and compatible hitch models as well as compatible accessories and towing components. Thank you!
My 2020 Toyota highlander came with a 4-way flat connector but my tent trailer uses a 7-way hookup. Will this allow me to pull my trailer?
Hi, Daniel! 7-Way Spade Type & 4-Way Flat Connector 47185 will carry the 4-flat's turn, brake and running lights with the option to add brake control and battery charge. I hope that is helpful!
What is the gauge of the wire that runs up to the battery?
Hi, Dave! 10-12 gauge is recommended. Thanks for asking!
I have a 4 flat hook up on my 2001 Tundra (female end). Is this the only piece I would need to convert it to take a 7 way horse trailer hookup (not including breaks). I had been told in the past you could use a converter for a 7 to haul a flat 4 but not the other way around and that I’d have to get my truck re wired with a 7 prong?
Hello, Hayley! This wiring connector 47185 will convert your 4-flat to a 7-way trailer wiring harness. This part also includes mounting bracket and hardware. I hope that is helpful!
My 4 pin is already connected to the battery. Will I need to run another wire from this adapter to the battery?
Hi, Tim! Unless you are using it for a brake control, you would not need to run another power wire. I hope that is helpful!
You installed my tow package with a 4-way flat connector. Is this all I need to use a 7-way? Or Will I need additional wiring to utilize the 7-way spade functions such as for braking?
Hi, Kim! You will need additional parts and wiring for electric brake functions. Please visit or contact your local U-Haul Hitch Center for parts and pricing. Thank you!
Do u-haul weather proof wiring adaptors have a warranty?
Hi, Ray! The U-Haul warranty for this product is 30 days. For an additional $10, a 2-year warranty can be purchased if installed by U-Haul. Please contact your local U-Haul Hitch Center for more information. Thank you!
Is this works for 2013 Jeep Wrangler?
Hello, Martinha! Yes, this connector does work with a 2013 Jeep Wrangler. Please also use the Jeep Wrangler 4-flat plug and play part CQT118416. Thank you!
This is good for 2003 Toyota Tundra
Hello, Sharjeel! This connector will work with any vehicle equipped with a 4-flat trailer harness. Thanks for asking!
Will U-Haul install the product?
Hey, Glenn! Yes, your local U-Haul Hitch Center can install this connector for you. Please contact the location of your choice directly to schedule an installation. Thank you!
What do you with the extra wires
Hi, Ruby! Grease and tape unused connectors to prevent corrosion. Thank you!
Will you guys install this product already have a hitch on my truck?
Hi Damion, we can definitely install this for you. Simply find a location near you and give them a call!
i need information on how to install this product
After installing the mounting bracket to your desired location, simply plug the 47185 4-flat connector to the vehicles pre-wired 4-flat connector. Ground the 47185 white wire to a clean surface on the vehicles frame. These simple steps will power your trailer turn signals, brake lights and running lights.
You will then be left with 3 wires to attach if applicable:
• Black wire - When properly installed the black wire charges the 12 volt trailer battery.
• Blue wire - When properly installed the blue wire powers the trailers electric brakes.
• Purple wire - The purple wire is typically attached to the vehicles reverse light for releasing a boat trailers lockout brakes.
For more information, please see the instruction sheet by clicking on the PDF at the top of this page labeled 'Installation Instructions' or visit your local U-Haul hitch center. Thank you!
I have a 01 ml320 with a trailer hitch already installed but no trailer wiring. If I purchased this item in store, could I have a uhauk tech do the instal?
Our hitch expert says "U-Haul sells and installs complete tow packages for your 2001 Mercedes ML 320 including the 47185 and the required trailer light power module part 14493". Thank you.
What color wire on this connector is the reverse light wire?
The UHaul hitch pros write: "The purple wire on part 47185 is most commonly attached to the vehicles reverse light."
Have questions or need help?
Chat live with a moving supplies specialist
Buy Online, Pick up in Store orders are typically ready for pick up within two hours of submitting an order. Orders placed after store hours will be ready for pick up the next day. In-Store availability is based on the store inventory and is typically updated every two hours. Orders are held for four days after processing.
Free standard shipping is available on qualifying orders $100 (USD) or more when shipped within the contiguous U.S. or on orders $150 (CAD) or more when shipped within Canada.
Next-Day Delivery:
Our network of friendly neighborhood delivery drivers will pickup qualifying products from your local U-Haul Store and deliver them to your door.* This service is available in most areas on our most popular products. Choose Next-Day delivery while shopping to check availability in your area.
*Delivery fee will be calculated at checkout.
Free standard shipping is available on qualifying orders $100 (USD) or more when shipped within the contiguous U.S. or on orders $150 (CAD) or more when shipped within Canada.
In-Store Pickup Savings! When you pick up your order instead of shipping it to your home, you may see additional savings as some products will be priced lower for in-store pickup.
Next-Day Delivery:
Our network of friendly neighborhood delivery drivers will pickup qualifying products from your local U-Haul Store and deliver them to your door.* This service is available in most areas on our most popular products. Choose Next-Day delivery while shopping to check availability in your area.
*Delivery fee will be calculated at checkout.
I have a 2023 Wilderness Subaru Outback that will be receiving the Reliance Braking System and the 7-Way Type & 4-Way Flat Connector. Will the mechanic need to run the brake wiring from the hitch area all the way to the front of the vehicle or is the 2023 Subaru Wilderness Outback 4-Pin equiped with the brake wire near the hitch that came with the vehicle. If the brake wiring needs to be run from the hitch area all the way to the front, where do they run the wiring? under or through the car panneling up to the front of the car? Is there an area on the front console of the Wilderness available to receive the Reliance Brake Contoller box? If not, will I be able to determine where they place it for cosmetics and easy access?
Hey Tom! I would suggest contacting your local U-Haul Center and speaking to the hitch pro. Have a great day!
Does this work for a 2011 gmc Acadia
Hi Shell. We have a few different wirings available for the Acadia. Please contact your nearest U-Haul Hitch Center or 800-468-4285 for further assistance.
What is required for a Brake hook up for camper trailer?
Hi there. Please contact your nearest U-Haul Center or 800-468-4285 to get this needed information. We will need to gather more information about the camper trailer.
Will this connector work for both RV and equipment type trailer plugs?
Please visit our Trailer Hitches page and enter your vehicle specifications to see all available and compatible hitch models as well as compatible accessories and towing components. Thank you!
will this work on a 2020 jeep grand Cherokee trackhawk
Good afternoon, This is a universal plug.
Does your team handle the installation?
Hi Rick, Yes! U-Haul installs a wide variety of hitch and towing components. Please contact your local U-Haul Hitch Center to schedule an installation and to receive a pricing quote. Thank you!
Hi Rick, Yes! U-Haul installs a wide variety of hitch and towing components. Please contact your local U-Haul Hitch Center to schedule an installation and to receive a pricing quote. Thank you!
Will this work on 2020 BMW X5
Good Morning Mike, Please visit our Trailer hitch page to determine the wiring that works for your vehicle. Please visit our Trailer Hitches page and enter your vehicle specifications to see all available and compatible hitch models as well as compatible accessories and towing components. Thank you!
Good Morning Mike, Please visit our Trailer hitch page to determine the wiring that works for your vehicle. Please visit our Trailer Hitches page and enter your vehicle specifications to see all available and compatible hitch models as well as compatible accessories and towing components. Thank you!
I am getting a for pin installed this weekend. Will this product work for a trailer that has brakes on it? Will it control the brakes?
Please visit our Trailer Hitches page and enter your vehicle specifications to see all available and compatible hitch models as well as compatible accessories and towing components. Thank you!
How long is the cord?
Hello Sue, The wires are typically 8-14 inches long depending what the wire connects to. Ex: The ground wire will always be longer. Thank you for your question.
Will this work with my 1999 Range Rover 4.6 HSE? If not, which one will? Thank you.
Good Morning Mike, Please visit our Trailer Hitches page and enter your vehicle specifications to see all available and compatible hitch models as well as compatible accessories and towing components. Thank you!
My 2020 Toyota highlander came with a 4-way flat connector but my tent trailer uses a 7-way hookup. Will this allow me to pull my trailer?
Hi, Daniel! 7-Way Spade Type & 4-Way Flat Connector 47185 will carry the 4-flat's turn, brake and running lights with the option to add brake control and battery charge. I hope that is helpful!
What is the gauge of the wire that runs up to the battery?
Hi, Dave! 10-12 gauge is recommended. Thanks for asking!
I have a 4 flat hook up on my 2001 Tundra (female end). Is this the only piece I would need to convert it to take a 7 way horse trailer hookup (not including breaks). I had been told in the past you could use a converter for a 7 to haul a flat 4 but not the other way around and that I’d have to get my truck re wired with a 7 prong?
Hello, Hayley! This wiring connector 47185 will convert your 4-flat to a 7-way trailer wiring harness. This part also includes mounting bracket and hardware. I hope that is helpful!
My 4 pin is already connected to the battery. Will I need to run another wire from this adapter to the battery?
Hi, Tim! Unless you are using it for a brake control, you would not need to run another power wire. I hope that is helpful!
You installed my tow package with a 4-way flat connector. Is this all I need to use a 7-way? Or Will I need additional wiring to utilize the 7-way spade functions such as for braking?
Hi, Kim! You will need additional parts and wiring for electric brake functions. Please visit or contact your local U-Haul Hitch Center for parts and pricing. Thank you!
Do u-haul weather proof wiring adaptors have a warranty?
Hi, Ray! The U-Haul warranty for this product is 30 days. For an additional $10, a 2-year warranty can be purchased if installed by U-Haul. Please contact your local U-Haul Hitch Center for more information. Thank you!
Is this works for 2013 Jeep Wrangler?
Hello, Martinha! Yes, this connector does work with a 2013 Jeep Wrangler. Please also use the Jeep Wrangler 4-flat plug and play part CQT118416. Thank you!
This is good for 2003 Toyota Tundra
Hello, Sharjeel! This connector will work with any vehicle equipped with a 4-flat trailer harness. Thanks for asking!
Will U-Haul install the product?
Hey, Glenn! Yes, your local U-Haul Hitch Center can install this connector for you. Please contact the location of your choice directly to schedule an installation. Thank you!
What do you with the extra wires
Hi, Ruby! Grease and tape unused connectors to prevent corrosion. Thank you!
Will you guys install this product already have a hitch on my truck?
Hi Damion, we can definitely install this for you. Simply find a location near you and give them a call!
i need information on how to install this product
After installing the mounting bracket to your desired location, simply plug the 47185 4-flat connector to the vehicles pre-wired 4-flat connector. Ground the 47185 white wire to a clean surface on the vehicles frame. These simple steps will power your trailer turn signals, brake lights and running lights.
You will then be left with 3 wires to attach if applicable:
• Black wire - When properly installed the black wire charges the 12 volt trailer battery.
• Blue wire - When properly installed the blue wire powers the trailers electric brakes.
• Purple wire - The purple wire is typically attached to the vehicles reverse light for releasing a boat trailers lockout brakes.
For more information, please see the instruction sheet by clicking on the PDF at the top of this page labeled 'Installation Instructions' or visit your local U-Haul hitch center. Thank you!
I have a 01 ml320 with a trailer hitch already installed but no trailer wiring. If I purchased this item in store, could I have a uhauk tech do the instal?
Our hitch expert says "U-Haul sells and installs complete tow packages for your 2001 Mercedes ML 320 including the 47185 and the required trailer light power module part 14493". Thank you.
What color wire on this connector is the reverse light wire?
The UHaul hitch pros write: "The purple wire on part 47185 is most commonly attached to the vehicles reverse light."