Bosch 5126WS Engine Air Filter

Bosch Workshop Air Filter 5126WS

Bosch Workshop Air Filter 5126WS is an engine air filter built for clean airflow and dependable engine protection. Its panel shape and high-pleat media design help capture outside particles before they reach the intake system, making it a practical choice for routine maintenance on select Kia and Hyundai applications.

For drivers searching for a Bosch 5126WS engine air filter for Kia Magentis or Hyundai Sonata, this replacement is built around Bosch Workshop Air Filter construction standards and fitment-specific coverage.

Key Features

• Panel-style engine air filter for the intake air system
• High-pleat cellulose cured media for increased filtering surface
• 98% filtration efficiency rating from the manufacturer
• Polyurethane seal helps maintain sealing performance under heat and moisture
• Designed to support clean airflow for engine protection

Product Details

The Bosch Workshop Air Filter line focuses on consistent filtration performance for everyday service work. On part number 5126WS, Bosch uses a high-velocity cellulose cured media with a large pleat count to increase the effective filtering area while helping reduce the amount of airborne debris entering the engine. The polyurethane seal is engineered to retain elasticity and sealing integrity, which helps preserve the filter surface and resist water and heat exposure. This Bosch 5126WS air filter is a direct-fit style replacement for select 1999-2006 Hyundai Sonata, 2001-2006 Kia Magentis, and 2001-2006 Kia Optima applications.

This part cross-references 2811337101 for the same application.

What It Helps Address

• Restricted airflow caused by a dirty or clogged engine air filter
• Dust and road debris entering the intake tract
• Reduced filtration performance during routine service intervals
• Seal wear that can allow unfiltered air past the filter element
• Air filter replacement needs on select Hyundai Sonata and Kia Magentis/Optima models

Installation Notes and Tips

Verify the air filter housing shape and application before installation. This Bosch Workshop Air Filter 5126WS is a panel-style filter, so it should be seated evenly in the air box with the seal fully aligned around the perimeter. Replace the filter during standard maintenance if the existing element is dirty, damaged, or no longer sealing properly.

Quality Assurance

Bosch designs this Workshop Air Filter with a high pleat count, cured cellulose media, and a polyurethane sealing edge to support consistent filtration performance. The manufacturer lists a 98% filtering efficiency for this filter design.

Compatible With

• Fits 2001-2006 Kia Magentis, N/A
• Fits 2001-2006 Kia Optima, N/A
• Fits 1999-2005 Hyundai Sonata, N/A
• Fits 2005 Hyundai Sonata, N/A; To 02/2005