- Fitment: For Toyota Avalon 3.5 L, model years 2010-2012 - Location: Front Left door - Part Numbers: 8404007030, 84040-07030, DWS1693 - Qty Sold: 1 piece - Button Type: 6-button layout - Color: Black - Terminal Gender: Male - Terminal Quantity: 20 pins - To Control: Window - Key benefits: Replaces a worn, sticky, or non-responsive window switch with a direct-fit unit, restoring reliable window operation in the front left door - Why you need this: When the original window switch wears out or stops working, window control becomes difficult or impossible. This replacement provides a proper electrical connection and a familiar 6-button interface to restore full window control - What makes it stand out: Designed to match the original fit and function with multiple compatible part numbers, a 20-pin male terminal, and a 6-button layout in black for a seamless interior look - Applications and practicality: - Replacing a faulty front left window switch on a 2010-2012 Avalon with 3.5 L engine - Restoring consistent window operation when the existing switch has wear, sticking, or intermittent response - Keeping as a ready spare part for routine maintenance or workshop inventory - Installation considerations: Ensure the part numbers match 8404007030, 84040-07030, or DWS1693 for correct fitment; unit is a direct replacement for the front left window control; verify vehicle compatibility before purchase