Bosch 5143WS Engine Air Filter

Bosch Workshop Air Filter 5143WS Overview

The Bosch Workshop Air Filter 5143WS is an engine air filter built for select Ford truck and SUV applications. It uses a panel-style design with pleated cellulose media to help keep outside particles out of the intake stream while maintaining airflow for everyday engine operation.

For 2001-2003 Ford Excursion, 2001-2003 Ford F-250 Super Duty, and 2002-2003 Ford F-350 Super Duty applications, this Bosch air filter supports clean intake performance in a direct-fit workshop replacement format. The Bosch 5143WS is a practical choice when servicing the engine air filtration system on these Ford models.

Key Features

• Panel-style engine air filter for select Ford applications
• Pleated cellulose cured media for particle capture
• High filtration efficiency rated at 98%
• Polyurethane seal helps maintain filter surface integrity
• Seal material adds elasticity and resistance to water and heat
• Bosch Workshop Air Filter line for service replacement use

Detailed Product Description

Bosch Workshop Air Filter 5143WS is engineered with a high pleat count and high-velocity cellulose media to help reduce the amount of dust and debris entering the engine. The polyurethane sealing edge is designed to preserve the usable filter area while supporting a consistent seal under heat and moisture exposure. This combination makes the filter a straightforward service part for maintaining intake cleanliness on Ford Excursion, Ford F-250 Super Duty, and Ford F-350 Super Duty models.

The Bosch Workshop Air Filter line focuses on dependable filtration for routine maintenance. If you are replacing a worn engine air filter on a 2001-2003 Ford Excursion, 2001-2003 Ford F-250 Super Duty, or 2002-2003 Ford F-350 Super Duty, part number 5143WS provides a direct service solution. This part cross-references OE number 2U2Z9601AA for the same application.

What It Helps Address

• Restricted airflow caused by a dirty or loaded engine air filter
• Dust and road debris entering the intake system
• Reduced filtration performance from a deteriorated filter element
• Seal wear that can allow unfiltered air around the filter edge
• Routine maintenance needs on Ford Excursion, F-250 Super Duty, and F-350 Super Duty models

Installation Notes and Tips

Verify the existing filter shape and housing style before installation. Confirm vehicle year and model against the listed fitment for the Bosch 5143WS, and inspect the air box for dirt or debris before installing the new filter. A clean housing helps the new filter seat properly and supports consistent intake filtration.

Quality Assurance

Bosch designs this Workshop Air Filter with pleated cellulose media and a polyurethane seal to support filtration efficiency, sealing performance, and resistance to water and heat in normal service conditions.