The Bosch 5554WS Air Filter is engineered to provide superior engine protection for Nissan D21 and Nissan Pickup 2.4L L4 Gas SOHC models. Designed with a high number of pleats and high-velocity cellulose cured media, this filter ensures optimal airflow while effectively capturing contaminants. The high-quality polyurethane foam seal offers elasticity and sealing performance, safeguarding against water and heat intrusion. With up to 99.5% filtering efficiency, it ensures only the cleanest air reaches the engine, contributing to enhanced performance and fuel efficiency. This air filter is a reliable choice for maintaining engine health and operational efficiency in Nissan vehicles.