Bosch 3397009843 Windshield Wiper Blade Set - Front

Bosch OE Style Wiper Blades for Mercedes-Benz

Bosch 3397009843 is an OE-style beam wiper blade set built for front windshield applications on select Mercedes-Benz models. It uses an all-season EPDM wiping edge, a black steel frame, and an attached spoiler/aerofoil to maintain consistent contact across the glass in changing weather.

Compatible With Mercedes-Benz C300, C43 AMG, C63 AMG, GLC300, GLC350e, GLC43 AMG, and GLC63 AMG applications listed below, this Bosch Aerotwin wiper blade follows the OE-style blade profile used on many late-model Mercedes-Benz vehicles. The Bosch OE Style Blade line focuses on direct-fit replacement geometry and clean windshield wiping performance.

Key Features

• Bosch Aerotwin wiper blade from the OE Style Blade line
• Part number 3397009843
• Beam-style blade design with attached spoiler/aerofoil
• All-season EPDM wiping edge for year-round use
• Black steel frame construction
• Quick connect hardware included
• 21-inch blade length on both sides
• Front-position application

Detailed Description

This Bosch 3397009843 wiper blade set is engineered as an OE-style replacement for Mercedes-Benz front windshield applications. The beam design helps maintain even pressure along the glass, while the integrated spoiler supports stable wiping at speed. EPDM blade material is selected for durability in wet, cold, and warm conditions, making it a practical choice for daily driving and seasonal weather changes.

Fitment includes 2022-2025 Mercedes-Benz GLC300, 2025 GLC350e, 2025 GLC43 AMG, 2025 GLC63 AMG S E Performance, 2022-2023 C300, 2022-2023 C43 AMG, and 2023 C63 AMG S. Additional coverage includes 2015-2021 Mercedes-Benz C300, 2017-2021 C43 AMG, 2015-2021 C63 AMG, 2015-2021 C63 AMG S, 2016-2021 GLC300, 2017-2021 GLC43 AMG, 2018-2021 GLC63 AMG, 2018-2021 GLC63 AMG S, 2018-2020 GLC350e, 2016-2018 C350e, 2016 C450 AMG, 2015 C250, 2015 C350, 2015 C400, and 2013 C250, C300, C350, and C63 AMG chassis-specific applications.

This part cross-references Bosch OE-style replacement applications for the same vehicle fitment family.

What It Helps Address

• Streaking across the windshield
• Chattering or skipping during operation
• Poor contact from worn beam blades
• Reduced visibility in rain, sleet, or road spray
• Fitment issues from non-OE-style blade profiles

Installation Notes and Tips

Confirm the vehicle year, model, and chassis note before ordering, especially on 2013 Mercedes-Benz C-Class applications with chassis breakpoints. This Bosch 3397009843 blade set uses quick connect hardware and is intended for front windshield use only. Verify the existing blade length and connector style against the vehicle before installation.

Quality Assurance

Bosch OE-style wiper blades are built to match the fit and function expected for direct replacement service on listed Mercedes-Benz applications. The Aerotwin design, beam construction, and EPDM wiping edge support consistent windshield clearing for everyday driving.