1999 Mercury Mountaineer Trailer Wiring

Name: Curt Powered Tail Light Converter with 4-Pole Flat Trailer Connector
Brand: CURT
SKU: C59236
Price: 70.68 USD
Availability: InStock
Rating: 4.57423728813559 (1475 reviews)

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Separate wiring system - brake and turn signals are sent along separate wires. A powered converter module is required to safeguard the vehicle's wiring and to provide enough power for the trailer lights.

Curt Powered Tail Light Converter with 4-Pole Flat Trailer Connector
without factory tow package

1475 reviews

Code: C59236

$70.68

Retail:$130.95

You Save: 46%

In Stock

Custom Fit Vehicle Wiring Specs:

Trailer Hitch Wiring
Vehicle End Connector
Powered Converter
Universal Fit
Plug and Lead
4 Flat
Splice-In

Features:

Install a 4-way flat on your vehicle with this splice-in harness. Powered converter connects directly to battery to reduce strain on wiring. Potted, SMT construction boosts water and vibration resistance. Works with 2-wire, 3-wire, and PWM systems.

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Tow Package Wiring Harness with 4 Pole Trailer Connector
with factory Tow Package

227 reviews

Code: 118241

$21.05

Retail:$31.11

You Save: 32%

In Stock

Custom Fit Vehicle Wiring Specs:

Trailer Hitch Wiring
Vehicle End Connector
Hidden
No Converter
Factory Tow Package
Plug and Lead
4 Flat
Plug-In

Plug-In Location:

Under vehicle, passenger side

Features:

Tow Ready Tow Package Replacement Vehicle Wiring Harness by Draw-Tite, Hidden Hitch and Reese

More Information >

Hopkins Plug-In Simple Vehicle Wiring Harness with 4-Pole Flat Trailer Connector
without factory tow package

3 reviews

Code: HM40315

$61.83

Retail:$92.04

You Save: 33%

In Stock

Custom Fit Vehicle Wiring Specs:

Trailer Hitch Wiring
Vehicle End Connector
Visible
Powered Converter
No Tow Package
Plug and Lead
4 Flat
Plug-In

Features:

Quickly and easily install a 4-way trailer connector on your vehicle with this custom harness. T-connector plugs directly into existing wiring. Powered converter reduces strain on wiring system.

More Information >

Hopkins Plug-In Simple Wiring Harness for Factory Tow Package - 4-Pole Flat Trailer Connector
with factory Tow Package

8 reviews

Code: HM40915

$16.22

Retail:$31.10

You Save: 48%

In Stock

Custom Fit Vehicle Wiring Specs:

Trailer Hitch Wiring
Vehicle End Connector
Visible
No Converter
Factory Tow Package
Plug and Lead
4 Flat
Plug-In

Features:

Quickly and easily install a 4-way trailer connector on your vehicle with this custom harness. T-connector plugs directly into OEM tow package wiring harness - no cutting or splicing required.

More Information >

Curt T-Connector Vehicle Wiring Harness with 4-Pole Flat Trailer Connector
without factory tow package

18 reviews

Code: C55345

$57.47

Retail:$104.95

You Save: 45%

In Stock

Custom Fit Vehicle Wiring Specs:

Trailer Hitch Wiring
Vehicle End Connector
Visible
Powered Converter
No Tow Package
Plug and Lead
4 Flat
Plug-In

Plug-In Location:

Behind driver and passenger side tail lights - externally

Features:

Quickly and easily install a 4-way trailer connector on your vehicle with this custom harness. T-connector plugs directly into existing wiring. Powered converter reduces strain on wiring system and is made using SMT to ensure superior performance.

More Information >

Curt T-Connector Vehicle Wiring Harness for Factory Tow Package - 4-Pole Flat Trailer Connector
with factory Tow Package

22 reviews

Code: C55241

$18.21

Retail:$46.90

You Save: 61%

In Stock

Custom Fit Vehicle Wiring Specs:

Trailer Hitch Wiring
Vehicle End Connector
Visible
No Converter
Factory Tow Package
Plug and Lead
4 Flat
Plug-In

Plug-In Location:

Under vehicle, driver side

Features:

Quickly and easily install a 4-way trailer connector on your vehicle with this custom harness. Connector plugs directly into OEM tow package port - no cutting, splicing or tapping required.

More Information >

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What is the Difference Between a Class II and a Class III Hitch?

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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What is the Difference Between a 4-Way and 7-Way Trailer Connector

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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What Is An OEM Prep Package And How Do I Know If I Have It

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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Difference Between Curt and etrailer Trailer Hitch Receivers for 2020 Chevy Colorado

There is only one difference between the Curt Trailer Hitch Receiver #C13176 and etrailer Trailer Hitch Receiver #e98909 that fit your 2020 Chevrolet Colorado, which is the finish. The Curt trailer hitch has a glossy black finish while the etrailer…

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Does etrailer Trailer Hitch Receiver for 2018 Dodge Journey Include Fishwire

Hey Curtis! Yes, the etrailer Trailer Hitch Receiver #e98845 comes with the fishwire/bolt leader. All of the hardware pictured below, including the fishwire, will come with the trailer hitch. This is confirmed to fit your 2018 Dodge Journey. Do you…

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Hi Jerry, For your 2025 Kia Sorento PHEV you would need the Curt Trailer Hitch Receiver #C37RV for the trailer hitch. The right light kit for your Sorento is going to depend on a few factors. For models with the tow package, like you stated you have,…

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My Vehicle has a 4-Pin Trailer Plug, but Trailer has 7-Pin Trailer Plug

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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Hey Tim, The ZCI Circuit Protected Vehicle Wiring Harness #119250KIT is compatible with LED lights and has been used as a go to for years for people who have LED trailer lights. The light function is supposed send a tiny bit of voltage from the…

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4 Pin Wiring Harness for 2025 Chevrolet Equinox

Hello Andrew. It looks like our installers have not had the privilege of doing an install on a 2025 Chevy Equinox. I see that the wiring harnesses that we do have in stock have the 6 pin connector. It looks like Curt is aware of this issue and is in…

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Does Truck with 6-1/2 ft bed Have to Use Slider Hitch for Turning Clearance with Fifth Wheel Hitch

You will have to go with a sliding hitch to allow the trailer to make tight turns. For a trailer 8 feet wide the only bed length that's going to allow 90 degree turns without a slider is a stationary hitch. That being said you have two options.…

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Difference Between Curt & etrailer Trailer Hitches For 2024 Subaru Crosstrek Wilderness

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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What is the Difference Between Curt and Towsmart Hitches for a 2025 Kia Sportage

Hey Piotr, thanks for reaching out! The weight ratings between the Curt Trailer Hitch Receiver #C94WR and Towsmart Trailer Hitch Receiver #TS96VR that fit your 2025 Kia Sportage are determined by the testing done according to those manufacturers. I…

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