Used Kick-Down Solenoid 1990–2019

The kick-down solenoid is an electrically actuated valve inside the automatic transmission that commands a downshift under hard acceleration. The ECM sends a signal, the solenoid opens a hydraulic passage, and the transmission drops to a lower gear for passing or acceleration. On electronically controlled units it's a clean, fast response -- when it works. These solenoids stick, burn out electrically, or develop internal leaks. A failed kick-down solenoid means the transmission won't downshift aggressively when you need it, reducing passing power. It can also trigger a check engine light with a transmission-related fault code. On many vehicles the solenoid is accessible inside the transmission oil pan, making this a job you can do without pulling the transmission. New solenoid plus fresh fluid often resolves shift quality complaints that look much more serious from the outside. Redline stocks 15 Kick-Down Solenoid from 7 sellers across 9 makes including Chevrolet, Honda, Acura, Land Rover, Lexus. Electrical connector type and body size must match. Filter by year, make, and model -- used OEM solenoids are a practical choice when new ones carry a steep dealer price.