Ensure optimal carburetor performance and smooth engine operation with this Air Vent Cut Carburetor Solenoid, specifically designed for HA3 and HA4 models from 1990 to 1999. This solenoid regulates airflow into the carburetor, maintaining the correct air-to-fuel ratio essential for consistent starts and reliable performance. Ideal for resolving issues like hard starts, engine stalls, or irregular idling, this part is a direct-fit replacement that restores proper engine function. Built for durability and precise operation, it's a must-have component for maintaining your mini truck's efficiency.