Bosch 77040WS Fuel Filter

Bosch Gasoline Fuel Filter 77040WS

Bosch 77040WS is a gasoline fuel filter built for in-line mounting and engineered to help maintain clean fuel delivery. It uses premium materials and Bosch injection-system expertise to support high-efficiency filtration for vehicles that depend on consistent fuel flow.

For drivers searching for a Bosch gasoline fuel filter for Saab 9-3, Saab 9-3X, Jaguar X-Type, or classic Buick, Cadillac, and Oldsmobile applications, this part number provides a direct replacement option with confirmed vehicle fitment.

Key Features

• Brand: Bosch Gasoline Fuel Filter
• Part number: 77040WS
• Fuel type: Gas
• Mounting type: In-line
• Engineered for high-efficiency fuel filtration
• Built to help protect the engine from fuel-system contamination
• Cross-reference part numbers include 25121129 and 93370527

Product Details

Bosch fuel filters are designed with quality materials and modern manufacturing methods to support dependable fuel-system performance. This gasoline fuel filter helps maintain cleaner fuel delivery, which is important for vehicles such as the 2003-2011 Saab 9-3, 2010-2011 Saab 9-3X, and 2002-2008 Jaguar X-Type. It also covers select Buick, Cadillac, and Oldsmobile applications, including the 1990-1992 Buick Riviera, 1990-1992 Cadillac Eldorado, 1990-1992 Cadillac Seville, 1990-1992 Oldsmobile Toronado, and 1990-1991 Buick Reatta.

Fits 2003-2011 Saab 9-3, N/A. Fits 2010-2011 Saab 9-3X, N/A. Fits 2002-2008 Jaguar X-Type, N/A. Fits 1990-1992 Buick Riviera, N/A. Fits 1990-1992 Cadillac Eldorado, N/A. Fits 1990-1992 Cadillac Seville, N/A. Fits 1990-1992 Oldsmobile Toronado, N/A. Fits 1990-1991 Buick Reatta, N/A.

What It Helps Address

• Restricted fuel flow from a clogged filter
• Contamination reaching injectors and fuel-system components
• Rough running caused by poor fuel cleanliness
• Loss of consistent engine performance from aged filtration media
• Service intervals that call for fuel filter replacement

Installation Notes and Tips

Install this Bosch fuel filter in the in-line fuel system position specified for the vehicle. Confirm the part number 77040WS against the vehicle application before replacement, and follow the manufacturer service interval for fuel filter maintenance. Use clean working practices when opening the fuel system to help prevent contamination.

Quality Assurance

Bosch recommends replacing the fuel filter at the manufacturer-specified interval to help maintain performance and extend engine life. The 77040WS is built to Bosch standards for fuel filtration and dependable operation in confirmed gasoline applications.