Standard Ignition PSW27 Seat Lumbar Switch

OE-Style Seat Lumbar Switch

Standard Ignition PSW27 is a direct-fit seat lumbar switch for vehicles equipped with power seat lumbar adjustment. It is built with quality materials for demanding automotive conditions and is tested for reliable operation in the applications listed below. This PSW27 replacement switch is a practical choice for restoring lumbar control in Ford, Mercury, and Lincoln models.

Key Features

• Direct-fit OE replacement for easier installation
• Female connector with 5 male blade terminals
• Built with materials selected to handle harsh automotive environments
• Extensively tested for dependable electrical performance
• Fits select Ford Crown Victoria, Grand Marquis, Explorer, and related applications

Detailed Product Overview

The Standard Ignition PSW27 seat lumbar switch is designed for vehicles that use a 5-blade terminal layout and a female connector. It restores lumbar switch function in select Ford Explorer, Mercury Mountaineer, Ford Crown Victoria, and Mercury Grand Marquis applications, along with additional listed fitments. This part number, PSW27, is also cross-referenced with Standard Ignition STW27 for the same application.

Compatible With 2001-2011 Ford Crown Victoria, 2001-2011 Mercury Grand Marquis, 2006-2008 Ford Explorer, 2004 Ford Explorer, 1995-2000 Ford Explorer, 2003-2006 Mercury Mountaineer, 2005 Ford Explorer, 2003 Ford Explorer, 2004-2005 Ford Explorer Sport Trac, 2002-2005 Mercury Mountaineer, 2002 Ford Explorer, 2002 Lincoln Blackwood, 1999-2002 Mercury Cougar, 2002 Mercury Mountaineer, and 1995-2000 Ford Contour.

Common Problems This Part Can Address

• Inoperative seat lumbar adjustment switch
• Intermittent lumbar support response
• Broken or worn switch contacts
• Loss of driver or passenger lumbar control
• Electrical failure at the seat switch interface

Installation Notes and Tips

Verify connector style, terminal count, and vehicle-specific fitment before installation. This PSW27 uses a female connector and 5 male blade terminals, so matching the original switch configuration is important for proper fit and function. Some listed applications include position-specific notes, such as front left, front right, or overhead console heater and A/C configurations on select Explorer Sport Trac and Mountaineer models.

Quality Assurance

Standard Ignition manufactures automotive aftermarket electrical parts with quality control maintained throughout the production process. The PSW27 undergoes extensive testing to support reliable operation in the listed Ford, Mercury, and Lincoln applications.