The Lockup Clutch and Solenoid Piston a part of the torque converter and are responsible for locking the impeller and turbine together, effectively eliminating the torque converter's slippage. This engagement is critical for improving efficiency and fuel economy. A selector piston is often used to control the hydraulic pressure applied to the lockup clutch. The selector piston's movement is typically controlled by signals from the transmission control unit (TCU) or other control systems. These signals are based on factors such as vehicle speed, engine load, throttle position, and other parameters. Attributes:• Hard coat anodizing of 0.025 - 0.0038 thickness• Designed to withstand hydraulic pressures and temperature fluctuations common in transmission systems• Proper fit and clearance to prevent binding or excessive wear• Durable and resistant to wear and corrosion, as they are exposed to hydraulic fluids and varying operating conditionsApplications:This Lockup Clutch and Solenoid Piston are used to regulate the flow of hydraulic fluid to the lockup clutch, engaging or disengaging it as needed.