This transmission shift solenoid kit is compatible with F4A41 and F4A42 transmissions and is designed for use in specified Optima, Soul, and Endeavor vehicle models.The kit includes all necessary components to replace worn or damaged solenoids and help restore proper transmission.Built with materials selected for and consistent performance, the solenoids support smooth shifting during regular driving conditions.The kit is designed for a precise fit and comes with installation instructions, making it suitable for professional technicians and experienced DIY users.This replacement kit helps maintain transmission responsiveness and may assist in addressing common shifting concerns.