Bosch 77111WS Fuel Filter

Bosch Gasoline Fuel Filter 77111WS

Bosch 77111WS is a gasoline fuel filter built for direct-fit service on select Volkswagen and Audi applications. It uses premium materials and Bosch fuel-system expertise to deliver high-efficiency filtration that helps protect the engine from contaminants and maintain consistent fuel delivery.

Compatible with 2006-2019 Volkswagen Beetle, Jetta, Eos, Golf, Golf R, and GTI, plus 2008-2015 Audi TT, TTS Quattro, A3, and A3 Quattro applications, this Bosch gasoline fuel filter is a fitment-based replacement for common VW/Audi fuel service needs.

Key Features

• Gasoline fuel filter for in-line mounting applications
• Engineered for 99% fuel filtration
• Built with premium-quality materials and Bosch production methods
• Supports clean fuel delivery for direct-injection and gasoline systems
• Part number: 77111WS

Product Details

Bosch Gasoline Fuel Filter 77111WS is part of the Bosch Gasoline Fuel Filter line, a product family focused on fuel-system protection and service intervals recommended by the vehicle manufacturer. For drivers servicing a Volkswagen Beetle, Jetta, GTI, or Audi A3, this filter helps maintain fuel cleanliness and supports dependable engine operation by reducing contamination in the fuel stream. This part cross-references OE-style part number 1K0201051K for the same application.

What This Fuel Filter Helps Address

• Restricted fuel flow caused by a loaded or dirty filter
• Fuel contamination entering sensitive injection components
• Rough running related to inconsistent fuel delivery
• Loss of performance from overdue fuel filter service
• Premature wear in the fuel system from trapped debris

Installation Notes and Tips

Verify the vehicle’s fuel system configuration before ordering, since some Audi A3 and A3 Quattro applications note a pump assembly with pressure regulator. Install the filter in the correct in-line orientation and follow the manufacturer’s service interval for replacement. Confirm fitment by year, make, and model before installation on Volkswagen Jetta, Eos, Golf, GTI, or Audi TT applications.

Quality Assurance

Bosch manufactures this fuel filter using premium materials and modern production methods to support consistent filtration performance. Bosch recommends replacing the fuel filter at manufacturer-specified intervals to help maintain high performance and extend engine life.