Standard Ignition WP633 Windshield Wiper Switch

Wiper Switch for Lexus RX350 and RX450h

Restore windshield and rear window wiper control with this Standard Ignition WP633 wiper switch. It is a direct-fit, new replacement with a black plastic finish, a single rectangular female connector, and 9 blade terminals for the listed Lexus applications.

Compatible with 2009-2011 Lexus RX350 and 2011-2012 Lexus RX450h without automatic wipers, this switch includes windshield washer spray, windshield wiper delay setting, windshield wiper speed setting, rear window washer spray, rear window wiper delay control, and rear window wiper speed setting functions.

Key Features

• Standard Ignition WP633 direct replacement wiper switch
• New construction with black plastic finish
• 1 rectangular female connector and 9 blade terminals
• Windshield washer spray and wiper delay/speed control included
• Rear window washer spray and rear wiper delay/speed control included
• 12-volt electrical design
• Fits Lexus RX350 and Lexus RX450h models without automatic wipers

Detailed Description

The WP633 is a replacement wiper switch for vehicles equipped with manual wiper control functions. It provides the driver inputs needed to operate windshield washer spray, windshield wiper delay, windshield wiper speed, rear window washer spray, rear window wiper delay, and rear window wiper speed settings. This makes it a practical OE-style service part for Lexus RX350 and Lexus RX450h models that do not use automatic wipers. The Standard Ignition WP633 is built as a direct attachment replacement for the original switch assembly.

This part cross-references OE-style application numbers such as 846520E030 and aftermarket references including WS6888 for the same application.

What It Helps Fix

• Inoperative windshield wiper speed selection
• Delayed or intermittent front wiper control issues
• Rear wiper delay or rear washer control failure
• Loss of washer spray activation from the switch
• Wiper switch wear, electrical contact problems, or broken internal controls

Installation Notes and Tips

Verify the vehicle is equipped without automatic wipers before ordering. Match the connector shape, terminal count, and switch layout to the original unit before installation. Because this is an electrical control component, inspect the harness connector and related circuits for corrosion, bent terminals, or damage before final assembly. Confirm proper operation of front and rear wiper functions after installation.

Quality Assurance

Standard Ignition supplies this as a new replacement switch built for the listed Lexus fitments. The WP633 is specified for direct attachment and 12-volt systems, with application coverage for 2009-2011 Lexus RX350 and 2011-2012 Lexus RX450h without automatic wipers.