Bosch 5427WS Air Filter

Bosch Workshop Air Filter 5427WS Overview

Bosch Workshop Air Filter 5427WS is an engine air filter for select Toyota and Lexus 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 driving and engine protection.

Built for 2010-2024 Toyota 4Runner, 2010-2023 Lexus GX460, and 2010-2014 Toyota FJ Cruiser applications, this Bosch air filter is a direct service part for routine maintenance. The 5427WS part number is also referenced as 5427WS for easy lookup during filter replacement.

Key Features

• Panel-style engine air filter for intake service
• High-pleat media design for increased filtering surface area
• Cellulose cured filter media with 98% filtering efficiency
• Polyurethane seal for elasticity, sealing performance, and resistance to water and heat
• Designed for clean airflow and engine protection in daily use
• Fits 2010-2024 Toyota 4Runner, 2010-2023 Lexus GX460, and 2010-2014 Toyota FJ Cruiser

Detailed Description

Bosch Workshop Air Filter 5427WS is engineered as an engine air filter replacement for select Toyota 4Runner, Lexus GX460, and Toyota FJ Cruiser models. The panel shape and pleated media help provide a large filtration area in a compact service part, while the polyurethane seal supports a consistent fit at the airbox. Bosch positions this filter line for clean intake air and dependable engine protection during normal road use. This part cross-references Bosch 1780138051 for the same application.

What It Helps Address

• Dust and road debris entering the engine intake
• Restricted airflow caused by a dirty or loaded air filter
• Reduced filtration performance from an aging filter element
• Seal leakage at the airbox from worn filter sealing material
• Routine maintenance needs on Toyota 4Runner, Lexus GX460, and Toyota FJ Cruiser models

Installation Notes and Tips

Verify the air filter housing shape and part number before installation. Replace the filter during scheduled intake service, and inspect the airbox for dirt, debris, or damaged sealing surfaces before closing the housing. Confirm fitment against the vehicle application listed for your specific year and model.

Quality Assurance

Bosch designs this Workshop Air Filter line with pleated cellulose media and a polyurethane seal to support filtration efficiency and sealing consistency. The 5427WS is built for service replacement in the listed Toyota and Lexus applications.