Hastings FF957 Fuel Filter - Secondary

Fuel Filter Overview

The Hastings FF957 fuel filter is a direct replacement for a wide range of classic Mercedes-Benz and select Freightliner applications. It is listed for primary and secondary fuel filter positions where specified, making it a fitment-focused choice for older diesel and gasoline systems that use this style of element.

Key Features

• Direct replacement fuel filter for compatible applications.
• Fits primary and secondary positions where the catalog lists N/A or Secondary.
• Supports classic Mercedes-Benz fuel system service needs.
• Also listed for Freightliner MB60 and MB70 applications with OE number 926901.
• Part number FF957 for easy catalog matching.

Detailed Description

Hastings FF957 is a fuel filter built around broad legacy fitment coverage, including Mercedes-Benz 220, 220D, 240D, 280SE, 300SEL, 300SL, 600, and related models, plus Freightliner MB60 and MB70. The fitment data also shows OE-number references for several Mercedes-Benz applications, including 3444777215 and 3440927005, which helps confirm application matching during service work. If you are sourcing a fuel filter for a Mercedes-Benz 300D, 280SL, or 230SL, FF957 is the catalog reference to verify against the vehicle’s original fuel system specification.

This part cross-references Monroe Shocks & Struts (e.g., 172286, 182286) for the same application.

Common Service Issues

• Restricted fuel flow from a clogged filter element.
• Hard starting caused by fuel contamination.
• Engine hesitation from reduced fuel delivery.
• Service replacement for aging fuel system maintenance.
• Application matching for vehicles using OE numbers 926901, 3444777215, or 3440927005.

Installation Notes

Verify the vehicle’s fuel filter location and OE number before ordering. Fitment includes both N/A and Secondary positions, so confirm the exact application on the vehicle and compare the original part number to FF957. For Mercedes-Benz and Freightliner service, match the catalog notes to the existing filter style before installation.

Quality Assurance

Hastings catalogs FF957 against specific OE-numbered applications to support accurate replacement selection. Use the fitment data and original part reference to confirm the correct fuel filter for the vehicle.