2003 Mercury Mountaineer Towing Products

Essential 2003 Mercury Mountaineer Towing Products

Milemarker – Winch Cradle (Part No.60-06495)

Winch Cradle

from

$249.99
Fits a 2 inch receiver hitch. Can be used in the front, back, or on another vehicle.

Product Features:
  • Winch Cradle
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CURT – Trailer Hitch: 2" Receiver, 4,000 LB Capacity, Installs as low as 35 Mins (Part No.13540)

Trailer Hitch: 2" Receiver, 4,000 LB Capacity, Installs as low as 35 Mins

from

$245.99
Whatever your task at hand — whether it’s launching that boat before daybreak, setting up your camper before the rush or getting a final load to the dump before close — CURT class 3 trailer hitches offer the strength needed for serious towing. They make it easy to hitch up and Bring It, offering a vehicle-specific fit and the weight capacity to handle a variety of trailers. Custom class 3 hitches are the most common type of receiver hitch for pickup trucks and SUVs. Because of their weight range, they are also found on full-size cars, crossovers and minivans. Each custom-fit class 3 hitch package is made for vehicle-specific mounting. This particular kit fits certain years of the Ford Explorer, Mazda Navajo and Mercury Mountaineer (see application info to verify vehicle compatibility). It provides a weight carrying capacity of 4,000 lbs. GTW and 400 lbs. TW. It is also compatible with a weight distribution hitch for level towing and a rating of 6,000 lbs. WD and 600 lbs. WDTW. CURT class 3 trailer hitches are typically used to attach and haul utility trailers, boat trailers, campers, snowmobile or ATV haulers and more (NOTE: Never exceed the lowest-rated towing component). Each class 3 hitch has a 2″ receiver tube and is tested in accordance with SAE J684 for safety. To ensure that CURT class 3 receiver hitches have what it takes for serious trailering, they are designed using a hands-on approach and are constructed with rugged, high-strength steel and precise welding. We also protect our class 3 hitches in a co-cured finish of liquid A-coat and black powder coat for superior resistance to rust, chipping and UV damage.

Product Features:
  • Rated to 4,000 lbs. gross trailer weight and 400 lbs. tongue weight
  • Compatible with weight distribution hitch (6,000 lbs. WD / 600 lbs. WDTW)
  • Engineered with a vehicle-specific design for a custom fit
  • Tested for safety in accordance with SAE J684
  • Precisely welded for superior strength and fit
  • Protected by a durable high-gloss black powder coat finish
  • Co-cured in a rust-resistant liquid A-coat, inside and out
  • Equipped with an open-back receiver for easy cleaning
  • Made in USA (may include imported hardware)
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Draw-tite Hitches – Class III Hitch (Part No.75437)

Class III Hitch

from

$306.99
Class III Trailer Hitch

Product Features:
  • 2″ Square Receiver Tube Opening
  • Max-Frame receivers are designed for trucks, vans and sport utility vehicles
  • Neat Appearance, All Frame Attachments
  • A-Coat Base with Black Powder Coat Finish
  • Rated up to 5,000 lbs. (GTW) Weight Carrying (WC)
  • Rated up to 8,000 lbs. (GTW) Weight Distributing (WD)
  • Solid All-Welded Construction for Maximum Strength and Safety
  • Custom Built According to Manufacturer & Model Year
  • Ensures Perfect Fit and Top Towing Performance
  • Computer-Aided Design and Fatigue Stress Testing
  • Designed to Withstand Road Abuse Within Specified Capacities
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Husky Towing – 7-Way Blade And 4-Way Flat, Plug-In Style (Part No.33058)

7-Way Blade And 4-Way Flat, Plug-In Style

from

$53.99
Husky Towing Products offers a complete line of hitches, brake assemblies, jacks, sway control solutions, and essential towing accessories. Each Husky product is precision engineered, constructed with durable, quality materials, and is rigorously tested to industry safety standards. Hitches are what Husky does best. From Class III receivers, to 5th wheels, to weight distribution hitches, Husky hitches help keep your towables safe and secure. Husky also offers accessories to accompany your hitch including hitch balls, shanks, locks, and more Electric tongue jacks, electrical and brake products, and cargo carriers are just a few other categories that make any towing experience easier.

Product Features:
  • Connects To Your Vehicle OEM Tow Package Connector
  • Easy-Open, Weatherproof Lid With Rugged, Oversized Hinge Allows Lid To Open 180 Degrees
  • Impact And Corrosion Resistant
  • Plug-In Simple(R) , No Cutting, No Splicing, Saves Time
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CURT – Dual-Output 6/4-Way Connector (Plugs into USCAR) (Part No.55664)

Dual-Output 6/4-Way Connector (Plugs into USCAR)

from

$46.49
A CURT custom wiring connector (sometimes called a T-connector) is a simple, plug-and-play electrical device that eliminates the need for cutting, splicing and soldering when installing vehicle-to-trailer wiring. Most vehicles do not come ready to tow. Unless your vehicle has a towing package, it is probably not equipped with a trailer wiring connector. This is where CURT’s custom wiring connectors come into play. A custom wiring connector uses a single original equipment plug to plug into a special socket provided by your vehicle. Though this option is not available on every vehicle, some automotive manufacturers design their vehicles to be easily equipped for towing by supplying a socket, integrated into the vehicle’s electrical system, to readily accept a custom wiring connector. With a CURT custom wiring connector, there is no need to tap into the taillight assembly because a special socket is already provided. This special custom wiring connector actually provides two connector sockets for a multipurpose option. It plugs into an OEM USCAR connector and offers a 4-way flat and 6-way round connector (see application info to verify fitment with your vehicle). It also comes with a mounting bracket for easy installation. CURT custom wiring connectors are designed to be long-lasting and simple to install. They come with dust covers to keep your connector clean when not in use.

Product Features:
  • Plugs into USCAR socket to provide 4-way and 6-way trailer wiring connectors
  • Fits USCAR-equipped vehicles with factory tow plugs only
  • Simple plug-and-play design eliminates the need for cutting or splicing
  • 4-way flat output connects tail lights, brake lights and turn signals
  • 6-way round socket adds connection for electric brakes and auxiliary power
  • Dust covers included to keep connectors clean when not in use
  • Slit loom keeps wires contained and well protected
  • Metal bracket securely mounts wiring to the vehicle or trailer hitch
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Milemarker – HI12000; Hydraulic Winch (Part No.75-52000C)

HI12000; Hydraulic Winch

from

$1971.99
Mount to front of vehicle. Can be permanent or detachable. Free spooling and mechanical lock. Sealed against elements, can be used under water. Corrosion resistant. Stainless steel tie bars and fasteners. Reversible mounting. Limited warranty. Adapter sold separately, required for install.

Product Features:
  • Mounts To Front Of Vehicle
  • Can Be Permanent Or Detachable
  • Free spooling; Mechanical Lock
  • Sealed Against Elements; Can Be Used Under Water
  • Stainless Steel Tie Bars And Fasteners
  • Reversible Mounting
  • Limited Warranty
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Milemarker – HI9000; Hydraulic Winch (Part No.75-50085C)

HI9000; Hydraulic Winch

from

$1806.99
Mount to front of vehicle. Can be permanent or detachable. Free spooling and mechanical lock. Sealed against elements, can be used under water. Corrosion resistant. Stainless steel tie bars and fasteners. Reversible mounting. Limited warranty.

Product Features:
  • Mounts To Front Of Vehicle
  • Can Be Permanent Or Detachable
  • Free spooling; Mechanical Lock
  • Sealed Against Elements; Can Be Used Under Water
  • Stainless Steel Tie Bars And Fasteners
  • Reversible Mounting
  • Limited Warranty
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CURT – Custom Wiring Harness (4-Way Flat Output; Battery Connection Required) (Part No.55345)

Custom Wiring Harness (4-Way Flat Output; Battery Connection Required)

from

$89.99
If your vehicle is not equipped with wiring for towing a trailer, CURT custom wiring is the ideal solution. A custom wiring harness — also called a T-connector — is a simple, plug-and-play electrical device that plugs into your automotive electric system and provides a standard, universal trailer wiring connection. This is done using two or more vehicle-specific, OEM-compatible connectors to plug into the taillight assembly, eliminating the need for cutting, splicing and soldering during installation. Custom wiring harnesses are made vehicle-specific, and while they are not available for all vehicles, they do offer one of the fastest, easiest and most secure ways to wire a vehicle for towing. This particular plug-in harness provides a 4-way flat connector socket and is designed to be a custom wiring harness to fit certain years of the Ford Explorer and Mercury Mountaineer (to verify your vehicle compatibility, see application info). It comes with all necessary wiring components to establish a reliable trailer wiring connection, as well as a dust cover to keep the connector clean when not in use. You have a picture in mind of your next destination — maybe it’s the boat landing at your favorite fishing spot, maybe it’s a campsite that overlooks one of nature’s masterpieces, or maybe it’s the next big jobsite. However, turning that picture into a reality takes more than just daydreaming. It takes a solid connection and the right amount of power. CURT custom wiring is made with some of the most sophisticated technology in the industry and is designed to install with ease, giving you a long-lasting electrical connection for your towing hitch setup.

Product Features:
  • Plugs into vehicle tail light assembly to provide a 4-way flat socket
  • Simple plug-and-play design eliminates the need for cutting or splicing
  • 4-way flat output connects tail lights, brake lights and turn signals
  • Equipped with a powered 3-wire to 2-wire tail light converter
  • Constructed with SMT circuitry for better performance and durability
  • Dust cover included to keep connector clean when not in use
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CURT – Custom 4-Flat, Select Ford, Mercury, Lincoln Vehicles, OEM Tow Package Required (Part No.55251)

Custom 4-Flat, Select Ford, Mercury, Lincoln Vehicles, OEM Tow Package Required

from

$17.49
CURT custom wiring connectors are the easiest way to outfit your vehicle with a CURT trailer wiring connection. They are built with some of the most advanced technology in the industry, and each one is custom-fitted to work with a specific make and model. Some automotive manufacturers install a special socket on the vehicle to be used for vehicle-to-trailer wiring. Although this special socket is not equipped on every vehicle, a CURT custom wiring connector — also called a T-connector — utilizes the socket for simple, stress-free installation. Rather than requiring you to cut, splice and solder into your vehicle’s wiring system, the custom wiring connector uses a single OEM-compatible plug and instantly provides a standard, universal vehicle-to-trailer wiring connection, typically in the form a 4-way flat. All CURT custom wiring connectors are made vehicle-specific for the easiest possible installation and the best fit. This particular plug-in connector provides a 4-way flat socket and is designed to be a custom wiring option for certain years of the Ford Explorer, Mercury Mountaineer and Lincoln Aviator (factory tow package required; to verify your vehicle compatibility, see application info). It comes with all necessary hardware to establish a solid connection. It also comes with a dust cover to keep the connector socket clean when not in use. To ensure long-lasting reliability, all CURT custom wiring connectors are thoroughly tested for optimal functionality. Stress is the last thing you should feel when towing a trailer — whether you’re hauling your RV to that favorite camping destination, your ATVs up to the hunting grounds or your fishing boat to the new hidden hotspot. At CURT, we think your towing equipment should add to the enjoyment of your experience, not detract from it.

Product Features:
  • Plugs into existing OEM vehicle socket to provide a 4-way flat socket
  • Simple plug-and-play design eliminates the need for cutting or splicing
  • 4-way flat output connects tail lights, brake lights and turn signals
  • Dust cover included to keep connector clean when not in use
  • Backed by a limited one-year warranty
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Carquest Premium – Trailer Connector Kit (Part No.PTC1525)

Trailer Connector Kit

from

$83.99
Carquest premium engine management products provide the right products for a wide range of domestic and import applications. Delivering the highest performance and durability under demanding conditions.
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Carquest Premium – Multi Purpose Connector (Part No.PTA2944)

Multi Purpose Connector

from

$61.99
CARQUEST premium engine management products provide the right products for a wide range of domestic and import applications. Delivering the highest performance and durability under demanding conditions.
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Hopkins – 47297, InSIGHT Plug In Simple!® Trailer Brake Control (Part No.47297)

47297, InSIGHT Plug In Simple!® Trailer Brake Control

from

$124.99
New trucks are becoming more car-like every year making it almost impossible to install a traditional brake controller. With the InSIGHT brake control, you gain the flexibility needed to make a simple, no tools required installation in any vehicle. This three part system allows the driver to bring the display back in sight where they can see what is going on as well as bringing the controls within a comfortable reach whether you are right or left handed. Mount the brain of the system out of sight. So, no more banging your knee every time you get in and out of your vehicle. This proportional brake controller creates stops that are safe and smooth, making you feel like you aren’t even towing a trailer! With easy to set gain adjustments and a digital display will make setting this brake control quick and easy. Seven On-the-fly sensitivity settings allows you to adjust for trailer weights and weather at the press of a button. Most states and provinces require a trailer brake controller based on the weight of the trailer.

Product Features:
  • Proportional braking
  • No Tools Required Installation, no drilling required
  • Percentage of braking power shown
  • 7 Sensitivity Settings for Advanced Braking Control
  • Intuitive vertical manual slide
  • Short Proof Protected
  • Controls up to 8 trailer brakes
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Hopkins – Premium Brake Controller with Smart LED Display (Part No.47225)

Premium Brake Controller with Smart LED Display

from

$73.99
The 47225 brake control utilizes time based actuation for applying braking power to the trailer brakes. An LED indicator will glow displaying braking intensity. The brighter the glow, the more braking force is being applied to the trailer brakes. Most states and provinces require a trailer brake controller based on the weight of the trailer.

Product Features:
  • Smart LED Display Shows Trailer Connection
  • Braking Function/Short circuit Notification
  • Changes Green To Yellow As Power Increases
  • Plug In Simple Feature
  • Intuitive vertical manual slide
  • Short Proof Protected
  • Controls up to 4 trailer brakes
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Hopkins – 47284, Reliance Plug-In Simple!® Trailer Brake Control (Part No.47284)

47284, Reliance Plug-In Simple!® Trailer Brake Control

from

$78.99
The 47284 brake control utilizes time based actuation for applying braking power to the trailer brakes. The built-in digital display makes it easy for setting braking intensity. The braking force to the trailer can easily be adjusted from 5% to 99% for setting the exact percentage of brake power desired. Most states and provinces require a trailer brake controller based on the weight of the trailer.

Product Features:
  • Time-based braking
  • Mounts at any angle
  • Percentage of braking power shown
  • Plug In Simple Feature
  • Intuitive vertical manual slide
  • Short Proof Protected
  • Controls up to 4 trailer brakes
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CURT – Trailer Hitch: 2" Receiver, 5,000 LB Capacity, Installs as low as 40 Mins (Part No.13550)

Trailer Hitch: 2" Receiver, 5,000 LB Capacity, Installs as low as 40 Mins

from

$251.99
Whatever your task at hand — whether it’s launching that boat before daybreak, setting up your camper before the rush or getting a final load to the dump before close — CURT class 3 trailer hitches offer the strength needed for serious towing. They make it easy to hitch up and Bring It, offering a vehicle-specific fit and the weight capacity to handle a variety of trailers. Custom class 3 hitches are the most common type of receiver hitch for pickup trucks and SUVs. Because of their weight range, they are also found on full-size cars, crossovers and minivans. Each custom-fit class 3 hitch package is made for vehicle-specific mounting. This particular kit fits certain years of the Ford Explorer, Lincoln Aviator and Mercury Mountaineer (see application info to verify vehicle compatibility). It provides a weight carrying capacity of 5,000 lbs. GTW and 500 lbs. TW. It is also compatible with a weight distribution hitch for level towing and a rating of 8,000 lbs. WD and 800 lbs. WDTW. CURT class 3 trailer hitches are typically used to attach and haul utility trailers, boat trailers, campers, snowmobile or ATV haulers and more (NOTE: Never exceed the lowest-rated towing component). Each class 3 hitch has a 2″ receiver tube and is tested in accordance with SAE J684 for safety. To ensure that CURT class 3 receiver hitches have what it takes for serious trailering, they are designed using a hands-on approach and are constructed with rugged, high-strength steel and precise welding. We also protect our class 3 hitches in a co-cured finish of liquid A-coat and black powder coat for superior resistance to rust, chipping and UV damage.

Product Features:
  • Rated to 5,000 lbs. gross trailer weight and 500 lbs. tongue weight
  • Compatible with weight distribution hitch (8,000 lbs. WD / 800 lbs. WDTW)
  • Engineered with a vehicle-specific design for a custom fit
  • Tested for safety in accordance with SAE J684
  • Precisely welded for superior strength and fit
  • Protected by a durable high-gloss black powder coat finish
  • Co-cured in a rust-resistant liquid A-coat, inside and out
  • Equipped with an open-back receiver for easy cleaning
  • Made in USA (may include imported hardware)
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CURT – Trailer Hitch: 2" Receiver, 5,000 LB Capacity, Installs as low as 30 Mins (Part No.13112)

Trailer Hitch: 2" Receiver, 5,000 LB Capacity, Installs as low as 30 Mins

from

$272.99
Whatever your task at hand — whether it’s launching that boat before daybreak, setting up your camper before the rush or getting a final load to the dump before close — CURT class 3 trailer hitches offer the strength needed for serious towing. They make it easy to hitch up and Bring It, offering a vehicle-specific fit and the weight capacity to handle a variety of trailers. Custom class 3 hitches are the most common type of receiver hitch for pickup trucks and SUVs. Because of their weight range, they are also found on full-size cars, crossovers and minivans. Each custom-fit class 3 hitch package is made for vehicle-specific mounting. This particular kit fits certain years of the Ford Explorer and Mercury Mountaineer (see application info to verify vehicle compatibility). It provides a weight carrying capacity of 5,000 lbs. GTW and 500 lbs. TW. It is also compatible with a weight distribution hitch for level towing and a rating of 8,000 lbs. WD and 800 lbs. WDTW. CURT class 3 trailer hitches are typically used to attach and haul utility trailers, boat trailers, campers, snowmobile or ATV haulers and more (NOTE: Never exceed the lowest-rated towing component). Each class 3 hitch has a 2″ receiver tube and is tested in accordance with SAE J684 for safety. To ensure that CURT class 3 receiver hitches have what it takes for serious trailering, they are designed using a hands-on approach and are constructed with rugged, high-strength steel and precise welding. We also protect our class 3 hitches in a co-cured finish of liquid A-coat and black powder coat for superior resistance to rust, chipping and UV damage.

Product Features:
  • Rated to 5,000 lbs. gross trailer weight and 500 lbs. tongue weight
  • Compatible with weight distribution hitch (8,000 lbs. WD / 800 lbs. WDTW)
  • Engineered with a vehicle-specific design for a custom fit
  • Tested for safety in accordance with SAE J684
  • Precisely welded for superior strength and fit
  • Protected by a durable high-gloss black powder coat finish
  • Co-cured in a rust-resistant liquid A-coat, inside and out
  • Equipped with an open-back receiver for easy cleaning
  • Made in USA (may include imported hardware)
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CURT – Trailer Brake Controller Harness (Part No.51322)

Trailer Brake Controller Harness

from

$11.49
A CURT Quick Plug brake controller wiring adapter is one of the fastest and easiest ways to plug your brake controller into your vehicle. It requires no cutting or splicing! Just insert the vehicle-specific plug end into the OEM vehicle’s factory brake controller socket. The other end plugs into your CURT trailer brake controller. Quick Plug harnesses are available for a variety of vehicles and are unique for each vehicle application to provide the easiest possible installation. This particular brake controller harness fits certain years of the Ford Bronco, E150, E250, E350, E450 Club Wagon, Econoline, Excursion, Expedition, Explorer, Flex, F150, F150 Heritage, F250, F250 HD, F350 Super Duty, Police Interceptor Utility, Windstar, Land Rover LR3, LR4, Range Rover, Evoque, Sport, Lincoln Mark LT, MKT, Navigator and Mercury Mountaineer (see application info to verify fitment). CURT Quick Plug harnesses are compatible with most CURT brake controls and can be used as a replacement or for a new control unit installation. They’re also great for towing all types of trailers with electric brakes. For versatile mounting of your trailer brake controller this Quick Plug wire harness measures two feet long. It also features a slit loom sleeve to keep the wires protected against crushing and abrasions. CURT Quick Plug wire plug-in adapters are made with 12-gauge wires for a reliable connection and braking, and come with zip ties to keep the harness contained and out of sight.

Product Features:
  • Allows a CURT trailer brake controller to be plugged into OEM socket
  • Quick plug harness installs with plug-and-play convenience
  • Wire colors match standard brake controller harnesses
  • Includes 24″ of 12 gauge wire for flexible installation
  • Slit-loom sleeve keeps wires contained and protected
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Husky Towing – Compatible With Controllers With A Connector, 2 Plug (Part No.31860)

Compatible With Controllers With A Connector, 2 Plug

from

$18.99
Husky custom wiring harnesses fits all Husky brake controls that have a similar shaped plug. Simply attach the adapter to the Husky brake control. The safest or easiest way to wire a brake control to your tow-prepped vehicle.

Product Features:
  • The Safest Or Easiest Way To Wire A Brake Control To Your Tow-Prepped Vehicle
  • Simply Attach The Adapter To The Brake Control
  • Constructed with durable, quality materials, and is rigorously tested to industry safety standards
  • Easy to install
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Dorman – Trailer Hitch Electrical Connector Plug (Part No.924-308)

Trailer Hitch Electrical Connector Plug

from

$36.49
This trailer hitch plug is designed to match the fit and function of the original part on specified vehicles. Made of quality materials, it is engineered for reliable performance.

Product Features:
  • Direct replacement – this trailer hitch plug matches the fit and function of the factory part on specified years, makes and models
  • Ideal solution – this plug is a reliable replacement for an original part that is missing or has failed due to fatigue
  • Durable construction – this part is made from quality materials to ensure reliable performance and long service life
  • Trustworthy quality – backed by team of product experts in the United States and more than a century of automotive experience
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2003 Mercury Mountaineer Towing Products

You count on your 2003 Mercury Mountaineer to run right. That means taking care of it with regular maintenance, necessary repairs, and the right parts. Advance Auto Parts can help with all of that thanks to our extensive inventory of trusted Towing Products. With 34 Towing Products ranging in price from $7.99 to $1,971.99, you’re sure to find everything you need for your 2003 Mercury Mountaineer.

Brands matter. If you want to shop a specific Towing Products brand, we stock 6 different brands like Hopkins, CURT, and Dorman. 2003 Mercury Mountaineer Towing Products start as low as $7.99!

One of the best ways to find top quality OEM or aftermarket Towing Products is by asking professionals. Short of that, you can shop with confidence thanks to our 138 extensive product reviews on 2003 Mercury Mountaineer Towing Products. Some of the top-rated Towing Products products we carry are 48035, 4 Flat Vehicle Side Towing Connector (48") with 3.6 stars and Time Based Brake Control – Digital with 3.0 stars.

Did we mention you can order your Towing Products from our online catalog and have them shipped right to your garage? Or, if you feel like seeing the parts first-hand, search for your nearest Advance Auto Parts location above and pick up in-store when you’re ready. Browse our full Towing Products inventory for your 2003 Mercury Mountaineer below to get started!

Top-Rated Towing Products Brands For Your 2003 Mercury Mountaineer

Trusted Towing Products OEM and aftermarket product brands are what Advance Auto Parts specializes in. The brands we work with are sure to keep that 2003 Mercury Mountaineer running right for years to come. In our inventory you’ll find brands like Hopkins, CURT, Dorman, and even more.

Popular CURT Towing Products

You’ll find popular CURT brand products across Trailer Hitches. All are waiting to get your 2003 Mercury Mountaineer back on the road. Some of the top-rated CURT products in these categories are:

Top-Rated Hopkins Towing Products


If Hopkins are what you’re looking for, our inventory holds plenty. We stock Hopkins brand Towing Products for your 2003 Mercury Mountaineer, and some of our most reviewed Hopkins parts include:
Premium Brake Controller with Smart LED Display
from $73.99
(20)
Premium Brake Controller with Smart LED Display
Trailer Brake Controls
40955, Multi-Tow® FORD / GM 7 Blade and 4 Flat Wiring Kit
from $39.99
(20)
40955, Multi-Tow® FORD / GM 7 Blade and 4 Flat Wiring Kit
Trailer Wiring Harness
47284, Reliance Plug-In Simple!® Trailer Brake Control
from $78.99
(19)
47284, Reliance Plug-In Simple!® Trailer Brake Control
Trailer Brake Controls

FAQs for 2003 Mercury Mountaineer Towing Products

What are the most purchased Towing Products for the 2003 Mercury Mountaineer?

Out of 34 Towing Products for the 2003 Mercury Mountaineer, the most popular in our inventory are:
47297, InSIGHT Plug In Simple!® Trailer Brake Control
from $124.99
This product is not rated
47297, InSIGHT Plug In Simple!® Trailer Brake Control
Trailer Brake Controls
Dual-Output 7/4-Way Connector (Plugs into USCAR)
from $31.49
This product is not rated
Dual-Output 7/4-Way Connector (Plugs into USCAR)
Trailer Wiring Harness

What are the top-rated 2003 Mercury Mountaineer Towing Products?

Top-rated Towing Products for your 2003 Mercury Mountaineer based on customer reviews/ratings are:
48035, 4 Flat Vehicle Side Towing Connector (48")
from $7.99
(5)
48035, 4 Flat Vehicle Side Towing Connector (48")
“Great fit”
Time Based Brake Control - Digital
from $84.99
(1)
Time Based Brake Control – Digital
“This unit is easy to install and configure. it would work well on two brakes. if that is your purpose then i would give it 4.5 stars. however, i am us”