Hastings FF973 Fuel Filter - Secondary

Fuel Filter Overview

The Hastings FF973 is a fuel filter for heavy-duty applications with confirmed fitment across multiple commercial truck and bus platforms. It serves as a secondary element in listed applications and is referenced to OE numbers 5574508 and 23519152 where noted.

Key Features

• Fuel filter for commercial-duty air and fuel delivery systems.
• Secondary element fitment is listed for select applications.
• Cross-references OE numbers 5574508 and 23519152 on applicable rows.
• Fits 1962-1974 Chevrolet C60, N/A.
• Fits 1981-1987 Autocar ACL, C / DC, DK, and AT configurations.

Fitment Details

Compatible with a wide range of medium- and heavy-duty vehicles, including Chevrolet C60, Autocar ACL, Autocar C / DC, Autocar DK, Autocar AT, Freightliner FLT086, Freightliner FLC112, International CO9670, International COF9670, White WHS, White WIL, White WCM, and White WIM. The FF973 appears in both secondary and N/A position listings, so application details should be matched to the exact row before ordering. This part cross-references OE numbers 5574508 and 23519152 for the same application.

What It Helps Address

• Restricted fuel flow caused by a clogged filter element.
• Contamination entering the fuel system.
• Reduced filtration performance in secondary filter locations.
• Service replacement needs on older commercial vehicles.

Installation Notes and Tips

Verify the exact year, make, model, and position against the fitment table before installation. Several listings include obsolete-pending notes and OE-number references, so matching the application row is important for correct selection. Confirm whether the vehicle uses a secondary element configuration or an N/A position listing.

Quality Assurance

Hastings is a recognized filtration brand with coverage for commercial and heavy-duty applications. Use the fitment table and OE references to confirm the correct FF973 application for your vehicle.