Bosch P3891WS Cabin Air Filter

Overview of Bosch Cabin Filter P3891WS for Nissan and Infiniti

The Bosch Cabin Filter P3891WS is designed to maintain clean air inside your vehicle's cabin by filtering out particulate contaminants. Specifically engineered for Nissan and Infiniti models such as the Armada, Pathfinder Armada, QX56, and TITAN, this OEM standard part ensures reliable performance and compatibility.

• Filter media made of spunbound polyester combined with synthetic meltblow fibers
• Particulate cabin filter type for effective particle filtration
• Dimensions: approximately 3.98 inches width by 0.94 inches height
• Foam automotive material for durability and fit
• Recommended replacement interval of 12,000 miles
• Packaged as two filters per set

About the Bosch Cabin Filter Product Line

The Bosch Cabin Filter line focuses on delivering OEM standard cabin air filters that meet manufacturer specifications for fit and filtration. The P3891WS is part of this line, offering particulate filtration designed to reduce airborne contaminants entering the vehicle interior. This product line emphasizes quality materials such as spunbound polyester and synthetic meltblow fibers to provide consistent airflow and filtration efficiency.

Detailed Product Description

The Bosch P3891WS cabin air filter utilizes a multi-layer filter media composed of spunbound polyester and synthetic meltblow fibers, which effectively trap dust, pollen, and other airborne particles. Its particulate filter type is optimized for vehicles without activated carbon pre-filters or HEPA filters, focusing on particulate removal. The foam material construction supports a secure fit within the HVAC system of compatible Nissan and Infiniti vehicles. This filter is designed to be replaced every 12,000 miles to maintain optimal air quality and HVAC system performance.

Applications and Problem Solving

• Reduces dust and pollen entering the vehicle cabin
• Helps maintain clear visibility by reducing airborne particles
• Improves HVAC system efficiency by preventing filter clogging
• Minimizes allergens and particulate irritants for occupants
• Compatible with Nissan Armada, Pathfinder Armada, QX56, and TITAN models

Installation Notes and Tips

When replacing the Bosch P3891WS cabin air filter, ensure the vehicle is parked and the HVAC system is off. Locate the cabin air filter housing, typically behind the glove box or under the dashboard, depending on the model. Remove the old filter carefully to avoid releasing trapped debris into the cabin. Install the new filter with the airflow direction indicated on the filter frame. Regular replacement every 12,000 miles is recommended to maintain air quality and system performance.

Quality Assurance

As an OEM standard part, the Bosch P3891WS cabin air filter meets manufacturer specifications for fit and filtration. Bosch is a recognized brand in automotive components, ensuring consistent quality and reliability. While no specific warranty information is provided, Bosch products typically adhere to industry standards for durability and performance.