2025 Ram 2500 Trailer Wiring

Keep Your 2025 Ram 2500 in Top Shape with a Quality Trailer Wiring

When it comes to maintaining or upgrading your 2025 Ram 2500, choosing high-quality parts is crucial for ensuring your vehicle stays in top shape, whether you’re tackling a repair or enhancing performance. At Advance Auto Parts, we know how important it is to find the right Trailer Wiring for your 2500. We currently carry a top Trailer Wiring in stock that is built to last. Whether you’re replacing a damaged Trailer Wiring or looking to upgrade, our selection for the 2025 Ram 2500 ensures you’ll find exactly what you need to keep your vehicle looking and performing its best.

Explore Related Parts

And while you’re here, don’t forget to check out related part categories like Fifth Wheel Hitches and Trailer Hitches to complete your upgrade or repair project. At Advance Auto Parts, we’re proud to offer the parts and expertise to keep your 2025 Ram 2500 running smoothly and looking great.

Essential 2025 Ram 2500 Trailer Wiring

Hopkins – 40974, Multi-Tow® Exact Fit OEM replacement 7 Blade and 4 Flat Towing Connector (Part No.40974)

40974, Multi-Tow® Exact Fit OEM replacement 7 Blade and 4 Flat Towing Connector

from

$41.99
Tow more than one trailer? This exact OEM replacement Multi-Tow® design features multiple towing options from one connector by providing sockets for towing both 7 blade and 4 flat trailers. This connector is Plug-In Simple!® with no cutting or splicing, saving you time by utilizing an OEM connector to create an exact fit for easy installation and maximum weatherproofing.

Product Features:
  • Multi-Tow® provides multiple towing options from one connector
  • Plug-In Simple!® Wiring Kit
  • Utilizes OEM connectors create an exact fit and maximum weatherproofing
  • Impact and corrosion resistant
  • Pre-greased terminals for added protection
  • Includes Step-By-Step Instructions
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Hopkins – 40950, Endurance Multi Tow« Ford / GM 7 Blade and 4 Flat Towing Connector (Part No.40950)

40950, Endurance Multi Tow« Ford / GM 7 Blade and 4 Flat Towing Connector

from

$37.99
By incorporating Endurance design features that include oversized hinges, internal grommets for enhanced weather proofing and a lid that opens 180 degrees, this connector is guaranteed to last for years of trouble free use. Multi-Tow® design feature adds multiple towing options from one connector by providing sockets for towing both 7 blade and 4 flat trailers. This connector is Plug-In Simple!® with no cutting or splicing, saving you time by utilizing an OEM connector to create an exact fit for easy installation and maximum weatherproofing. Four hole mount installation for standard mounting brackets.

Product Features:
  • Endurance Professional Grade
  • Plug-In Simple!® Wiring Kit
  • Utilizes OEM connectors create an exact fit and maximum weatherproofing
  • Multi-Tow® provides multiple towing options from one connector
  • Weatherproof lid opens 180 degrees
  • Oversized hinge offers ultimate durability
  • Superior Ergonomics
  • For Use w/Factory Tow Package
  • Impact And Corrosion Resistant
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CURT – Custom Towed-Vehicle RV Wiring Harness (Part No.58916)

Custom Towed-Vehicle RV Wiring Harness

from

$110.99
Towing your vehicle behind your RV is a great way to experience more of the adventure on your cross-country excursions. Whether you’re towing a compact car or a full-size truck, CURT has the perfect solution to help you Bring It! CURT towed-vehicle RV harnesses are a vehicle-specific, plug-and-play solution to wiring your vehicle for dinghy towing. They use original-equipment-compatible connectors to plug into your vehicle’s wiring system without any cutting, splicing or soldering required. They provide a standard 4-way flat connector to plug into the RV socket and synchronize the vehicle’s tail lights, turn signals and brake lights with the RV’s. Because each towed-vehicle RV harness has a vehicle-specific design, installation is fast and easy. This particular RV dinghy towing wiring harness is designed for specific years of the Ram or Dodge Ram 1500, 2500 and 3500. CURT RV harnesses are also built to provide long-lasting operation. They feature integrated block diodes that protect the vehicle’s circuits from the RV signals. They isolate the sensitive vehicle electronics, keeping them from overheating and short circuiting. Every CURT towed-vehicle RV harness comes ready to install with all necessary hardware included. They also come with a 4-way flat extension to provide plenty of length to plug into the RV socket, as well as a connector mounting bracket to mount the connector on the vehicle.

Product Features:
  • Connects a towed vehicle to an RV using a standard 4-way flat trailer plug
  • Simple plug-and-play design eliminates the need for cutting or splicing
  • Integrated block diodes isolate sensitive vehicle electronics from RV signals
  • Uses towed vehicle’s existing taillights, brake lights and turn signals
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CURT – 10ft. Custom Wiring Harness Extension (Adds 7-Way RV Blade to Truck Bed) (Part No.56000)

10ft. Custom Wiring Harness Extension (Adds 7-Way RV Blade to Truck Bed)

from

$149.99
There is nothing like the luxury and power that go along with heavy-duty towing. 5th wheel RVs offer a deluxe, home-away-from-home experience unlike any other, while gooseneck trailers possess a strength that far surpasses most other trailer options. As with any trailer, however, 5th wheels and goosenecks must be equipped with the proper lighting and electrical systems, and tend to require even more complex connectors than a standard receiver-type trailer setup. Make things simple with a CURT 5th wheel / gooseneck extension harness. These wiring harnesses are designed to put an extra connector socket in the bed of your pickup truck while still retaining power to the rear connector socket mounted on your bumper. This is done by plugging into the back of the existing original equipment (OEM) harness and routing through the body of the truck to a hole in the truck bed, providing a connector that is ready to accommodate your 5th wheel or gooseneck trailer. This CURT extension harness is designed to work with 7-way RV blade connectors and comes in a length of 10′. It is compatible with certain models of Chevrolet, Dodge, Ford, GMC, Nissan, Ram and Toyota (see application to verify fitment). When you need a towing electrical solution that allows you to switch back and forth between your receiver hitch and specialized trailer hitch, CURT gets you plugged in.

Product Features:
  • Routes a 7-way RV blade socket into truck bed while retaining use of rear socket
  • Simple plug-and-play design eliminates the need for cutting or splicing
  • Allows for easy connection of 5th wheel or gooseneck wiring
  • 7-way connects tail, brake, reverse, turn signals, brakes and auxiliary power
  • 10′ extension with right-angle plug for easy installation
  • Spring-loaded dust cover keeps connector clean when not in use
  • Slit loom keeps wires contained and well protected
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Carquest Premium – Trailer Connector Kit (Part No.TCC1255)

Trailer Connector Kit

from

$62.99
Modern vehicles may have 100 or more electrical harness connectors in every operating system of the vehicle. Terminal tension may weaken with time or corrosion may occur within the connector housing making replacement necessary. When replacing any harness-connector assembly approved wire termination methods must be followed to ensure a successful and long-term solution to the original problem is made. A failed terminal connection, terminal corrosion or damaged wire will result in an electrical system fault.

Product Features:
  • Carquest electrical connectors meet or exceed OE wire gauge, insulation, and terminal material requirements.
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CURT – Custom Towed-Vehicle RV Wiring Harness (Part No.58906)

Custom Towed-Vehicle RV Wiring Harness

from

$108.99
Towing your vehicle behind your RV is a great way to experience more of the adventure on your cross-country excursions. Whether you’re towing a compact car or a full-size truck, CURT has the perfect solution to help you Bring It! CURT towed-vehicle RV harnesses are a vehicle-specific, plug-and-play solution to wiring your vehicle for dinghy towing. They use original-equipment-compatible connectors to plug into your vehicle’s wiring system without any cutting, splicing or soldering required. They provide a standard 4-way flat connector to plug into the RV socket and synchronize the vehicle’s tail lights, turn signals and brake lights with the RV’s. Because each towed-vehicle RV harness has a vehicle-specific design, installation is fast and easy. This particular RV dinghy towing wiring harness is designed for specific years of the Ram 1500, 2500 and 3500 with LED taillights. CURT RV harnesses are also built to provide long-lasting operation. They feature integrated block diodes that protect the vehicle’s circuits from the RV signals. They isolate the sensitive vehicle electronics, keeping them from overheating and short circuiting. Every CURT towed-vehicle RV harness comes ready to install with all necessary hardware included. They also come with a 4-way flat extension to provide plenty of length to plug into the RV socket, as well as a connector mounting bracket to mount the connector on the vehicle.

Product Features:
  • Connects a towed vehicle to an RV using a standard 4-way flat trailer plug
  • Simple plug-and-play design eliminates the need for cutting or splicing
  • Integrated block diodes isolate sensitive vehicle electronics from RV signals
  • Uses towed vehicle’s existing taillights, brake lights and turn signals
See More

Most Popular Trailer Wiring Kit for 2025 Ram 2500s

Enhance your 2025 Ram 2500 with this popular Trailer Wiring Kit we have in stock, for $149.99.

CURT – 10ft. Custom Wiring Harness Extension (Adds 7-Way RV Blade to Truck Bed) (Part No.56000)

10ft. Custom Wiring Harness Extension (Adds 7-Way RV Blade to Truck Bed)

from

$149.99
There is nothing like the luxury and power that go along with heavy-duty towing. 5th wheel RVs offer a deluxe, home-away-from-home experience unlike any other, while gooseneck trailers possess a strength that far surpasses most other trailer options. As with any trailer, however, 5th wheels and goosenecks must be equipped with the proper lighting and electrical systems, and tend to require even more complex connectors than a standard receiver-type trailer setup. Make things simple with a CURT 5th wheel / gooseneck extension harness. These wiring harnesses are designed to put an extra connector socket in the bed of your pickup truck while still retaining power to the rear connector socket mounted on your bumper. This is done by plugging into the back of the existing original equipment (OEM) harness and routing through the body of the truck to a hole in the truck bed, providing a connector that is ready to accommodate your 5th wheel or gooseneck trailer. This CURT extension harness is designed to work with 7-way RV blade connectors and comes in a length of 10′. It is compatible with certain models of Chevrolet, Dodge, Ford, GMC, Nissan, Ram and Toyota (see application to verify fitment). When you need a towing electrical solution that allows you to switch back and forth between your receiver hitch and specialized trailer hitch, CURT gets you plugged in.

Product Features:
  • Routes a 7-way RV blade socket into truck bed while retaining use of rear socket
  • Simple plug-and-play design eliminates the need for cutting or splicing
  • Allows for easy connection of 5th wheel or gooseneck wiring
  • 7-way connects tail, brake, reverse, turn signals, brakes and auxiliary power
  • 10′ extension with right-angle plug for easy installation
  • Spring-loaded dust cover keeps connector clean when not in use
  • Slit loom keeps wires contained and well protected
See More

FAQs for 2025 Ram 2500 Trailer Wirings

What’s the price range for 2025 Ram 2500 Trailer Wiring?

We currently have just one Trailer Wiring for the 2025 Ram 2500 in stock: 10ft. Custom Wiring Harness Extension (Adds 7-Way RV Blade to Truck Bed) and it costs $149.99.

Does Advance Auto Parts sell Trailer Wiring for other Ram 2500 model years?

Yes, we carry Trailer Wiring for 13 model years of Ram 2500s between 2011 and 2024. The following model years are the most popular for Trailer Wiring purchases: 2023, 2022, 2021, 2020, 2019, 2018, 2017, 2016, and 2015.

Does Advance Auto Parts sell Trailer Wiring for any other 2025 Ram models?

Yes. We stock Trailer Wiring for 1 other popular 2025 Ram models. Some of the most popular are 2025 1500 Trailer Wiring and 2025 3500 Trailer Wiring.

What types of Trailer Wiring do you sell for my 2025 Ram 2500?

We currently have just 1 Trailer Wiring in stock for a 2025 Ram 2500, and as of 11/2/25, it is a Trailer Wiring Kit.

Can I get help with 2025 Ram 2500 Trailer Wiring orders?

Contact our customer support team by chat or phone, through the help desk page, where you can find instant answers about Ram Trailer Wiring and more.

What is your return policy for Ram 2500 Trailer Wiring?

Advance Auto Parts keeps returns simple. For new Ram 2500 Trailer Wiring and accessories, your online orders can be returned, in their original condition, within 45 days. For requirements, see the returns page.