Bosch N4077 Fuel Filter

Bosch Diesel Fuel Filter N4077

The Bosch Diesel Fuel Filter N4077 helps protect the injection system and engine from water, dirt, and other fuel residue. Built for diesel fuel delivery systems, it filters contaminants down to as low as 6.5 microns unless OE specifications call for otherwise.

Compatible With Mercedes-Benz diesel applications including 300D, 300SDL, 300TD, and 300SD models, this Bosch Diesel Fuel Filter supports clean fuel flow in in-line fuel filter locations. If you are replacing a Mercedes-Benz 300D fuel filter or servicing a classic Mercedes-Benz diesel fuel line, part number N4077 is a direct-fit service part for the listed applications.

• Diesel fuel filter for in-line mounting
• Filters water, dirt, and residue from diesel fuel
• Captures particles down to 6.5 microns unless OE specifies otherwise
• Supports injection system and engine protection
• Fits Mercedes-Benz diesel fuel system applications listed below

Fitment Details

• Fits 1990-1993 Mercedes-Benz 300D, N/A, located in fuel line; Diesel Fuel Filter
• Fits 1987 Mercedes-Benz 300D, N/A, Diesel Fuel Filter
• Fits 1985 Mercedes-Benz 300D, N/A, Diesel Fuel Filter
• Fits 1986-1987 Mercedes-Benz 300SDL, N/A, located in fuel line; Diesel Fuel Filter
• Fits 1987 Mercedes-Benz 300TD, N/A, located in fuel line; Diesel Fuel Filter
• Fits 1985 Mercedes-Benz 300SD, N/A, Diesel Fuel Filter
• Fits 1985 Mercedes-Benz 300TD, N/A, Diesel Fuel Filter
• Fits 1979-1984 Mercedes-Benz 300TD, N/A, primary fuel filter; Diesel Fuel Filter

What This Filter Helps Address

• Fuel contamination from dirt and sediment
• Water in diesel fuel
• Restricted fuel flow from a loaded filter
• Injection system wear caused by unfiltered particles
• Engine performance issues related to dirty fuel delivery

Installation Notes and Tips

Install Bosch N4077 in the in-line fuel filter location specified for the vehicle. Confirm the existing filter layout on Mercedes-Benz 300D, 300SDL, 300TD, and 300SD diesel models before replacement, since some applications note a fuel-line location and others identify the primary fuel filter position. This part cross-references 0014777901 for the same application.

Quality Assurance

Bosch Diesel Fuel Filters are engineered for diesel fuel system protection and particle filtration performance. The Bosch N4077 is built to support clean fuel delivery in the listed Mercedes-Benz diesel applications.