Bosch 77020WS Fuel Filter

Bosch Gasoline Fuel Filter 77020WS

The Bosch 77020WS gasoline fuel filter is built for direct-fit service on select Volkswagen and Audi applications. It helps keep fuel delivery clean by filtering out dirt, water, and other residue that can affect the injection system and engine performance.

For drivers searching for a Bosch gasoline fuel filter for Volkswagen Jetta, Beetle, or Audi A3 Quattro applications, this part number provides a fitment-specific replacement option with in-line mounting and gas fuel compatibility.

Key Features

• Brand: Bosch Gasoline Fuel Filter line
• Part number: 77020WS
• Fuel type: Gas
• Mounting type: In-line
• Filters fuel system contaminants such as dirt, water, and residue
• Direct replacement for select Volkswagen and Audi fuel filter applications

Product Details

Bosch fuel filtration products are engineered to protect the injection system and engine from harmful particles in the fuel supply. This gasoline fuel filter is intended for select Volkswagen Jetta, Volkswagen Beetle, Audi A3 Quattro, Audi TT Quattro, Volkswagen Eos, and Volkswagen R32 applications. If you are replacing a Bosch 77020WS fuel filter on a Volkswagen Jetta or Audi A3 Quattro, this part supports clean fuel delivery in the original in-line configuration.

This part cross-references Bosch 6Q0201051J for the same application.

What It Helps Address

• Restricted fuel flow caused by contamination in the fuel line
• Fuel system wear from dirt and residue in gasoline
• Water and particle buildup that can affect injection performance
• Service replacement needs for select Volkswagen and Audi fuel filter applications
• Fuel delivery issues related to an aging or clogged filter

Installation Notes and Tips

Confirm the vehicle’s fuel type and mounting style before installation. This Bosch 77020WS filter is specified for in-line mounting and gas applications, so match the existing filter layout and OE reference before service. Verify fitment by year, make, and model for Volkswagen Jetta, Beetle, Eos, R32, and Audi A3 Quattro or TT Quattro applications.

Quality Assurance

Bosch fuel filters are built to support fuel system protection by removing fine contaminants from gasoline before they reach sensitive engine components. The Bosch gasoline fuel filter product line is focused on OE-style filtration performance for select import vehicle applications.

• Fits 2006-2015 Volkswagen Jetta, N/A
• Fits 2012-2014 Volkswagen Beetle, N/A
• Fits 2006-2009 Audi A3 Quattro, N/A; Pump Assembly Includes Pressure Regulator; Gasoline Fuel Filter
• Fits 2008-2009 Audi TT Quattro, N/A
• Fits 2007-2008 Volkswagen Eos, N/A
• Fits 2008 Volkswagen R32, N/A