Donaldson P550880 Fuel Filter

Fuel filtration for heavy-duty applications

Donaldson P550880 is a spin-on secondary fuel filter built for diesel fuel systems that require fine filtration and dependable flow. It uses meltblown media and a 99.9% efficiency rating tested to SAE J1985, making it a practical replacement for commercial trucks and medium-duty platforms.

Key features

• Spin-on style for straightforward service replacement.
• Secondary fuel filter design for downstream filtration.
• Meltblown media for fine particle capture.
• 99.9% efficiency rating tested to SAE J1985.
• M20 x 1.5 thread size for the specified application.

Detailed fitment and application

Compatible with Ford F-650 and Ford F-750 fuel filter applications, this Donaldson fuel filter also fits Peterbilt 220, Freightliner 108SD, Freightliner B2, Kenworth T170, Kenworth T270, Kenworth T370, Freightliner FC80, and Freightliner FL60 applications listed below. The P550880 is a secondary spin-on filter with a 174 mm length, 3.66 in outer diameter, and gasket dimensions of 2.44 in inner diameter and 2.83 in outer diameter. This part cross-references Baldwin BF7922 and Gates 33682 for the same application.

What this filter helps address

• Restricted fuel flow caused by a loaded or clogged secondary filter.
• Contamination in diesel fuel systems that require fine filtration.
• Service intervals where a spin-on replacement filter is needed.
• Fitment issues when the thread size and gasket dimensions must match the original unit.

Installation notes and quality assurance

Verify the thread size, gasket dimensions, and filter style against the original part before installation. This fuel filter is intended for the listed applications and should be installed according to the vehicle service procedure. Donaldson filtration products are widely used in heavy-duty and commercial applications, and P550880 is identified by part number P550880 for ordering and cross-reference verification.