At a Glance

> Function First: Always test each circuit and wire by function, not by wire color.
> Connector Match: Confirm your truck uses this same rear plug style before ordering.
> Installation Skill: Basic vehicle wiring knowledge is required. Instructions are not included.
> Check the Original Plug: Look for green corrosion, broken terminals, loose pins, or damaged wiring.
> Test the Truck: Verify power, ground, turn, brake, tail light, and auxiliary circuits before splicing.
Brand: Brophy
SKU: OE12

Before You Order

Match the part number, measurements and connection points that apply to your trailer.

Function	Confirm stop, turn, tail, marker or clearance function.
Mount	Verify housing and mounting style.
Connection	Match the plug, pigtail or wiring.

Product Details

Trailer Wiring / 7-Way Truck Connector / Replacement Pigtail

Brophy 12" OEM Truck-Side Female Trailer Wiring Connector Plug Pigtail

Replacement 7-way trailer connector pigtail for many late-model truck applications using this style rear trailer plug connection. Designed for repair situations where the existing truck-side wiring plug is corroded, damaged, or causing trailer light or brake connection issues.

Part Number: OE12 7-Way Blade Trailer Connector 12" Wire Leads

Key Measurements & Specs

Specification	Detail
Part Number / SKU	OE12
Product Type	Truck-side 7-way trailer connector plug pigtail
Connector Style	7-way blade trailer connector wiring plug / receptacle pigtail
Wire Lead Length	12" behind the plug
Installation Type	Cut, test, and wire by function
Quantity Included	1 replacement connector pigtail

Fitment / Application

Category	Details
Vehicle System	Truck-side trailer wiring system
Common Applications	Many late-model GMC, Chevy, Ford, Nissan, and similar truck applications using this connector style
Primary Fit	Verify before ordering by matching the connector style and wiring application on your truck
Important Note	Wire colors may not match your truck. Test and wire by function, not by color.

Top Features

Feature	Buyer Benefit
7-Way Trailer Plug Repair	Helps restore truck-side trailer lighting and brake wiring connections when the original plug is damaged.
12" Wire Leads	Provides wire length behind the plug for splicing into the vehicle harness.
Function-Based Wiring	Supports proper testing and wiring by circuit function during installation.
Aftermarket Replacement	Useful when replacing a damaged connector without buying a larger rear harness assembly.

Overview

This replacement 7-way truck trailer connector pigtail is designed for repair work on truck-side trailer wiring systems. It replaces the plug connection behind the 7-way trailer socket when the existing wiring connector is corroded, damaged, or no longer making proper contact. This is an aftermarket replacement part for compatible OEM-style applications where the connector style and wiring functions match.

R&P Service Insight

Trailer wiring failures are often caused by corrosion, damaged terminals, poor ground connections, or moisture inside the rear connector area. This pigtail is intended for customers who are comfortable testing trailer wiring circuits and making proper electrical splices.

Function First: Always test each circuit and wire by function, not by wire color.
Connector Match: Confirm your truck uses this same rear plug style before ordering.
Installation Skill: Basic vehicle wiring knowledge is required. Instructions are not included.

R&P Knowledge Hub

Compatibility: This plug is commonly used for many late-model GMC, Chevy, Ford, Nissan, and other truck applications, but fitment must be verified by connector style before ordering.

Vehicle / System Fit: Truck-side 7-way blade trailer wiring system.

Installation Notes: The wire colors on this pigtail may not match the colors on your truck. Use a tester and connect each wire by function.

Performance Insight: A clean, properly wired connector helps restore trailer lighting, brake power, auxiliary power, and ground circuits when the original truck-side plug has failed.

Brand & Fitment Note

Selling Brand: R&P Carriages aftermarket replacement trailer wiring component

Application Reference: Chevy, GMC, Ford, Nissan, and other truck names are used as fitment/application references only.

What This Means: This listing is for an aftermarket replacement 7-way trailer connector pigtail, not a guaranteed OEM-branded item unless specifically stated and verified.

Before Ordering: Verify the connector shape, mounting style, wire functions, and truck-side trailer wiring system before installation.

R&P Repair Insight

This part may help when trailer lights, electric brakes, or auxiliary trailer circuits are not working because of a damaged or corroded truck-side connector. Before replacing the plug, confirm the issue is at the connector and not in the trailer, fuse panel, brake controller, ground circuit, or vehicle wiring upstream.

Check the Original Plug: Look for green corrosion, broken terminals, loose pins, or damaged wiring.
Test the Truck: Verify power, ground, turn, brake, tail light, and auxiliary circuits before splicing.
Protect the Repair: Use proper automotive wiring practices and seal splices from moisture after installation.

Wiring Code

Molded Connector Wire	Function	Usual Trailer Wire
White Wire	Ground	White Wire
Red Wire	Left Turn and Brake	Yellow Wire
Brown Wire	Right Turn and Brake	Green Wire
Green Wire	Tail Lights	Brown Wire
Blue Wire	Brake Power	Blue Wire
Black Wire	12 Volt Hot Lead	Black Wire
Yellow Wire	Auxiliary	Not specified

Wiring Warning: These are typical reference colors only. Vehicle wiring colors may vary. Test every circuit and wire by function, not by color.

Features

Truck-Side 7-Way Repair

Designed to replace a damaged or corroded connector behind the truck’s 7-way trailer plug.

12" Wire Leads

Includes 12" wire leads behind the plug for splicing into the vehicle wiring harness.

Aftermarket Replacement

Useful for repairing the connector without replacing a larger rear truck wiring harness when the plug is the problem.

Common Truck Applications

Commonly used on many late-model GMC, Chevy, Ford, Nissan, and similar truck trailer wiring systems where the connector matches.

Included Components

Quantity	Item
1	7-way truck trailer connector plug pigtail with 12" wire leads
Not Included	Installation instructions, tester, splice connectors, mounting hardware, or additional vehicle harness components

Important Fitment Note: Please confirm your truck is equipped with this style connector before ordering. This is a wiring repair component and requires basic vehicle wiring knowledge. Wire colors may differ from your truck, so all connections must be tested and wired by function.

Shop Trailer Wiring Parts

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Brophy 12" OEM Truck-Side Female Trailer Wiring Connector Plug Pigtail (OE12)