Replacement part for DC3400026A: DM 7 Switch Door Lock Solenoid Interlock designed to fit washing machines as a direct replacement. Compatibility: Suitable for WD10, WD12, WD70, WD80, WD90, WW70, WW80, and WW90 model ranges to accommodate various washer configurations. Function and safety: Provides a reliable locking mechanism to prevent opening the door during operation, improving cycle integrity and user safety. Durability: Made from sturdy materials to withstand daily use and maintain longterm performance. Installation: Intuitive design allows installation without tools, enabling a quick and straightforward replacement. Use scenarios: 1) Replacing a failed door lock on any of the listed WD/WW models to restore normal washing operation. 2) Servicing washers during routine maintenance or work in homes or service shops. 3) Upgrading worn or damaged interlocks on multiple units to improve safety and reliability.