Standard Ignition WP621 Windshield Wiper Switch

Wiper Switch for Lexus RX Automatic Wipers

Standard Ignition WP621 is a replacement wiper switch built for vehicles equipped with automatic wipers. It features a female connector, 14 terminals, and blade/pin terminal types for the specified OE-style electrical interface. This part is a direct-fit option for select Lexus RX350 and RX450h applications.

Key Features

• Replacement wiper switch for automatic wiper systems
• Female connector design
• 14-terminal configuration
• Blade and pin terminal types
• Fits 2009-2011 Lexus RX350, N/A
• Fits 2010-2012 Lexus RX450h, N/A

Detailed Description

Standard Ignition WP621 is intended for Lexus RX models with automatic wipers, including 2009-2011 Lexus RX350 and 2010-2012 Lexus RX450h. The switch uses a female connector with 14 terminals and blade/pin terminal construction to match the vehicle’s electrical connection requirements. If you are searching for a Lexus RX350 wiper switch or a Lexus RX450h automatic wiper switch, WP621 is the part number to reference.

This part cross-references OE and aftermarket numbers 846520E040 and WS6876 for the same application. Standard Ignition WP621 is also listed under part number WW921 in interchange data.

What It Is Used For

• Restoring windshield wiper control when the switch no longer responds correctly
• Addressing intermittent or inconsistent wiper operation
• Replacing a worn or damaged automatic wiper switch assembly
• Correcting electrical connection issues at the switch interface
• Returning driver control functions to the original operating pattern

Installation Notes and Tips

Verify the vehicle is equipped with automatic wipers before ordering. Confirm connector style, terminal count, and OE part number match the original switch before installation. Compare the existing switch and harness connection to Standard Ignition WP621 to ensure proper fitment on the Lexus RX350 or Lexus RX450h application.

Quality Assurance

Standard Ignition is a recognized aftermarket brand for electrical and switch components. WP621 is built to match the specified connector and terminal configuration for the listed Lexus applications.