Bosch
Gasoline Fuel Filter

Bosch 77028WS Fuel Filter

Brand Bosch 77028WS
Fuel Type Gas
Mounting Type In-line
Product line Gasoline Fuel Filter
Fits Subaru · 65 vehicles

High-efficiency filtration. Helps protect the engine with 99% fuel filtration.

In-line design. Fits neatly into the fuel system for straightforward service.

Premium materials. Built with modern production methods and Bosch injection-system expertise.

Cross-references 42072PA010 for the same application. See all 1.

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Bosch Gasoline Fuel Filter 77028WS

Bosch 77028WS is an in-line gasoline fuel filter built for Subaru applications that need clean, consistent fuel delivery. It uses premium materials and Bosch injection-system expertise to help maintain fuel system performance while filtering fuel at a high level.

Compatible with select Subaru Outback, Baja, Forester, Impreza, and Legacy models, this Bosch Gasoline Fuel Filter is a direct-fit service part for routine maintenance. Bosch recommends replacing the fuel filter at the manufacturer-specified interval to help preserve engine performance and long-term reliability.

Key Features

  • In-line fuel filter for gasoline applications
  • Engineered with premium-quality materials
  • Designed to support high-efficiency fuel filtration
  • Helps protect the engine from fuel-system contamination
  • Direct replacement part number 77028WS
  • Fits Subaru models across multiple years, including Outback, Baja, Forester, Impreza, and Legacy

Detailed Description

Bosch Gasoline Fuel Filter 77028WS is built for vehicles that rely on clean fuel flow to maintain drivability and engine protection. As part of Bosch’s Gasoline Fuel Filter line, it reflects the brand’s focus on fuel-system service parts for injection-equipped engines. The in-line design and gasoline-specific construction make it a practical choice for scheduled maintenance on Subaru Outback, Subaru Baja, Subaru Forester, Subaru Impreza, and Subaru Legacy applications.

This part cross-references 42072PA010 for the same application. For buyers searching by fitment, Bosch 77028WS is a strong match for Subaru fuel filter replacement needs where the original service interval calls for a gasoline in-line filter.

Common Issues It Can Help Address

  • Restricted fuel flow from a contaminated filter
  • Rough running caused by fuel delivery restriction
  • Reduced engine performance during acceleration
  • Fuel-system wear from trapped debris and particles
  • Maintenance overdue on Subaru fuel filter service intervals

Installation Notes and Tips

Install Bosch 77028WS in the in-line fuel circuit according to the vehicle service procedure. Confirm the fuel type is gasoline and verify the application against the vehicle’s year, make, and model before replacement. For Subaru Outback fuel filter replacement, Subaru Legacy fuel filter service, or Subaru Impreza fuel filter maintenance, follow the manufacturer’s recommended service interval and depressurize the fuel system before removal.

Quality Assurance

Bosch builds this fuel filter using modern production methods and fuel-injection system knowledge to support dependable filtration performance. Bosch recommends replacing the fuel filter at the specified maintenance interval to help maintain high performance and extend engine life.

This part fits 65 vehicles
Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.
YearMakeModelBody TypeLitersCylindersPositionNotes
2009SubaruOutback—2.5LH4N/AGasoline Fuel Filter
2008SubaruOutback—2.5LH4N/AGasoline Fuel Filter
2007SubaruOutbackWagon2.5LH4N/AGasoline Fuel Filter
2006SubaruBaja—2.5LH4N/AGasoline Fuel Filter
2006SubaruOutback—2.5LH4N/AGasoline Fuel Filter
2005SubaruBaja—2.5LH4N/AGasoline Fuel Filter
2005SubaruOutback—2.5LH4N/AGasoline Fuel Filter
2004SubaruBaja—2.5LH4N/AGasoline Fuel Filter
2004SubaruForester—2.5LH4N/AGasoline Fuel Filter
2004SubaruImpreza—2.0LH4N/AGasoline Fuel Filter
2004SubaruImpreza—2.5LH4N/AGasoline Fuel Filter
2004SubaruLegacy—2.5LH4N/AGasoline Fuel Filter
2004SubaruOutback—3.0LH6N/AGasoline Fuel Filter
2004SubaruOutback—2.5LH4N/AGasoline Fuel Filter
2003SubaruBaja—2.5LH4N/AGasoline Fuel Filter
2003SubaruImpreza—2.0LH4N/AGasoline Fuel Filter
2003SubaruImpreza—2.5LH4N/AGasoline Fuel Filter
2003SubaruLegacy—2.5LH4N/AGasoline Fuel Filter
2003SubaruOutback—3.0LH6N/AGasoline Fuel Filter
2003SubaruOutback—2.5LH4N/AGasoline Fuel Filter
2002SubaruForester—2.5LH4N/AGasoline Fuel Filter
2002SubaruImpreza—2.0LH4N/AGasoline Fuel Filter
2002SubaruImpreza—2.5LH4N/AGasoline Fuel Filter
2002SubaruLegacy—2.5LH4N/AGasoline Fuel Filter
2002SubaruOutback—3.0LH6N/AGasoline Fuel Filter
2002SubaruOutback—2.5LH4N/AGasoline Fuel Filter
2001SubaruForester—2.5LH4N/AGasoline Fuel Filter
2001SubaruImpreza—2.5LH4N/AGasoline Fuel Filter
2001SubaruImpreza—2.2LH4N/AGasoline Fuel Filter
2001SubaruLegacy—2.5LH4N/AGasoline Fuel Filter
2001SubaruOutback—3.0LH6N/AGasoline Fuel Filter
2001SubaruOutback—2.5LH4N/AGasoline Fuel Filter
2000SubaruForester—2.5LH4N/AGasoline Fuel Filter
2000SubaruImpreza—2.5LH4N/AGasoline Fuel Filter
2000SubaruImpreza—2.2LH4N/AGasoline Fuel Filter
2000SubaruLegacy—2.5LH4N/AGasoline Fuel Filter
2000SubaruOutback—2.5LH4N/AGasoline Fuel Filter
1999SubaruForester—2.5LH4N/AGasoline Fuel Filter
1999SubaruImpreza—2.5LH4N/AGasoline Fuel Filter
1999SubaruImpreza—2.2LH4N/AGasoline Fuel Filter
1999SubaruLegacy—2.2LH4N/AGasoline Fuel Filter
1999SubaruLegacy—2.5LH4N/AGasoline Fuel Filter
1998SubaruForester—2.5LH4N/AGasoline Fuel Filter
1998SubaruImpreza—2.5LH4N/AGasoline Fuel Filter
1998SubaruImpreza—2.2LH4N/AGasoline Fuel Filter
1998SubaruLegacy—2.5LH4N/AGasoline Fuel Filter
1998SubaruLegacy—2.2LH4N/AGasoline Fuel Filter
1997SubaruImpreza—2.2LH4N/AGasoline Fuel Filter
1997SubaruImpreza—1.8LH4N/AGasoline Fuel Filter
1997SubaruLegacy—2.5LH4N/AGasoline Fuel Filter
1997SubaruLegacy—2.2LH4N/AGasoline Fuel Filter
1996SubaruImpreza—2.2LH4N/AGasoline Fuel Filter
1996SubaruImpreza—1.8LH4N/AGasoline Fuel Filter
1996SubaruLegacy—2.5LH4N/AGasoline Fuel Filter
1996SubaruLegacy—2.2LH4N/AGasoline Fuel Filter
1995SubaruImpreza—2.2LH4N/AGasoline Fuel Filter
1995SubaruImpreza—1.8LH4N/AGasoline Fuel Filter
1995SubaruLegacy—2.2LH4N/AGasoline Fuel Filter
1994SubaruImpreza—1.8LH4N/AGasoline Fuel Filter
1994SubaruLegacy—2.2LH4N/AGasoline Fuel Filter
1993SubaruImpreza—1.8LH4N/AGasoline Fuel Filter
1993SubaruLegacy—2.2LH4N/AGasoline Fuel Filter
1992SubaruLegacy—2.2LH4N/AGasoline Fuel Filter
1991SubaruLegacy—2.2LH4N/AGasoline Fuel Filter
1990SubaruLegacy—2.2LH4N/AGasoline Fuel Filter
Directly replaces or cross-references 1 part number
Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.
42072PA010