Bosch 5623WS Workshop Series Engine Air Filter

The Bosch 5623WS is a Workshop Series engine air filter engineered for the professional installer market. Part of Bosch's high-coverage Workshop Air Filter lineup, the 5623WS is built to deliver dependable engine protection and filtration performance over its full service life.

Key Features:

• Up to 98% filtration efficiency — filter media features micro-pore construction with special imprinting for a high particle separation rate that protects the engine from harmful contaminants
• High-velocity cellulose filter media — cured media with evenly spaced pleats minimizes air restriction while maximizing surface area for superior dust-holding capacity
• Polyurethane foam seal — prevents unfiltered air bypass with no loss of filter surface area, while providing elasticity and resistance to heat and water
• OEM-quality construction — engineered with high-quality materials for flawless operation over the entire service life of the filter
• Professional-grade fitment — designed specifically for the professional installer market with broad vehicle coverage

Replacing a dirty engine air filter with a quality Bosch Workshop filter helps protect against reduced fuel economy, increased engine wear, and hard starting. The 5623WS is a direct-fit replacement that installs quickly and delivers the trusted Bosch quality that professional technicians rely on.