The STANDARD IGNITION WP621 SI Windshield Wiper Switch is engineered to provide reliable and precise control over the wiper and washer functions in 2009 2012 Lexus RX350 and RX450h models This switch is designed to meet or exceed original equipment specifications ensuring seamless integrationd optimal performance within the vehicle s electrical system Constructed with high quality materials the WP621 SI switch offers enhanced durability and resistance to wear effectively addressing common issues such as inconsistent wiper operation or unresponsive controls Its design includes a lubricated felt pad and a copper alloy shunt which contribute to extended lifespand improved conductivity The switch is pre aligned and pre adjusted facilitating straightforward installationd reducing the potential for installation errors By replacing a faulty or worn wiper switch with the WP621 SI fleet operators can ensure consistent wiper performance thereby enhancing driver visibility and safety during adverse weather conditions This replacement part is compatible with a wide range of import and domestic vehicles making it a versatile solution for fleet maintenance