Standard Ignition PSW51 Seat Lumbar Switch

Seat Lumbar Switch for Toyota and Lexus

Standard Ignition PSW51 is a seat lumbar switch built for select Toyota and Lexus vehicles with factory lumbar adjustment. It features a black and gray plastic finish, a female connector, and 5 male blade terminals for direct electrical connection.

Use this PSW51 switch when replacing a worn or nonresponsive lumbar control in vehicles such as the Toyota Camry, Highlander, RAV4, Sienna, Sequoia, Tundra, and Lexus ES300/ES330 applications.

Key Features

• Brand: Standard Ignition
• Part number: PSW51
• Seat lumbar switch for factory-equipped power lumbar systems
• Black and gray color/finish with plastic housing
• Female connector with 5 male blade terminals
• Direct-fit replacement for select Toyota and Lexus models

Fitment Details

• Fits 2014-2018 Toyota Sienna, Medium Gray.
• Fits 2008-2014 Toyota Highlander.
• Fits 2008-2012 Toyota RAV4, Medium Gray.
• Fits 2007-2011 Toyota Camry, Medium Gray.
• Fits 2003-2007 Toyota Highlander, Medium Gray.
• Fits 2006-2007 Toyota RAV4.
• Fits 2007 Toyota Sequoia.
• Fits 2004 Toyota Sequoia.
• Fits 2006 Lexus ES330.
• Fits 2005-2006 Toyota Sequoia, Medium Charcoal.
• Fits 2004-2006 Toyota Tundra, Medium Gray.
• Fits 2004-2005 Lexus ES330, Medium Gray.
• Fits 2003 Lexus ES300, Medium Gray.

What It Helps Fix

• Inoperative lumbar support switch response
• Intermittent seat back adjustment control
• Broken or worn switch actuator feel
• Damaged connector or terminal interface at the switch
• Mismatch from a failed factory lumbar control on Toyota and Lexus seats

Installation Notes

Verify connector style, terminal count, and trim color before installation. This switch uses a female connector and 5 blade terminals, so the vehicle harness must match the OE configuration. Confirm the exact model year and interior trim listed for your application, including Medium Gray or Medium Charcoal notes where specified.

Quality Assurance

Standard Ignition supplies electrical replacement parts for OE-style service applications. This part cross-references STW51 for the same application.