Donaldson P550529 Fuel Filter | Volvo, Mack & Heavy-Duty Diesel Applications

Donaldson P550529 Spin-On Fuel Filter for Volvo & Mack Diesel Engines

The Donaldson P550529 Fuel Filter is a premium spin-on diesel fuel filter engineered to protect fuel systems from harmful contaminants that can reduce performance, damage injectors, and increase maintenance costs. Built for demanding heavy-duty applications, the P550529 provides exceptional particulate removal while maintaining proper fuel flow for optimal engine performance.

Featuring Donaldson's advanced filtration technology, the P550529 helps remove dirt, rust, water-borne contaminants, and other debris before they reach sensitive fuel system components. Clean fuel is critical for protecting injectors, fuel pumps, and high-pressure fuel systems found in today's modern diesel engines.

Commonly used in Volvo and Mack truck applications, the Donaldson P550529 is trusted by fleets, owner-operators, and maintenance professionals seeking dependable filtration performance and maximum equipment uptime.

Key Features

• Premium spin-on diesel fuel filter
• 99% efficiency at 5 microns
• Protects injectors and fuel system components
• Maintains proper fuel flow
• Heavy-duty corrosion-resistant housing
• Advanced sealing technology helps prevent leaks
• Designed for severe-duty trucking applications
• Easy spin-on installation
• Fleet-proven filtration performance

Donaldson specifies the P550529 as a spin-on fuel filter with 99% efficiency at 5 microns, designed to remove contaminants while maintaining proper fuel system performance.

Specifications

• Part Number: P550529
• Brand: Donaldson
• Filter Type: Fuel Filter
• Style: Spin-On
• Outer Diameter: 4.23"
• Height: 262 mm (10.31")
• Thread Size: M32 x 1.5
• Efficiency: 99% at 5 Microns

The Donaldson P550529 features a heavy-duty spin-on design with an M32 x 1.5 thread and is engineered for Volvo and Mack fuel system applications. 

Benefits of Replacing Your Fuel Filter

• Protects expensive fuel injectors
• Improves fuel system reliability
• Maintains fuel economy
• Prevents fuel starvation issues
• Reduces injector wear
• Helps maintain engine performance
• Minimizes costly downtime
• Supports maximum engine efficiency

Common Symptoms of a Restricted Fuel Filter

• Loss of power under load
• Hard starting
• Poor throttle response
• Reduced fuel economy
• Engine hesitation
• Fuel pressure faults
• Check engine light
• Scheduled PM interval reached

Common Applications

• Volvo VNL Series
• Volvo VNR Series
• Volvo VHD Series
• Mack Anthem
• Mack Pinnacle
• Mack Granite
• Volvo D11 Engines
• Volvo D13 Engines
• Volvo D16 Engines
• Mack MP7 Engines
• Mack MP8 Engines
• Mack MP10 Engines

The P550529 is widely used across Volvo and Mack truck platforms and other heavy-duty diesel applications requiring high-efficiency fuel filtration.

Major Cross Reference Numbers

The Donaldson P550529 crosses with numerous OEM and aftermarket fuel filters:

• Fleetguard FF5507
• Fleetguard FF254
• Baldwin BF46034
• Baldwin BF7814
• Baldwin BF7943
• Luber-Finer LFF8059
• WIX 33721
• TruckPro DNP550529
• Fleetrite FFR85507
• Freightliner ABPFF5507
• Volvo VOE20430751
• Volvo 20430751
• Volvo 20405160
• Volvo 20539582
• Volvo 20972293
• Volvo 20972295
• Volvo 21879886
• Volvo 22480372
• Mack 2191P550529
• Cummins FF5507

Additional interchange numbers include 15126069, 56045594, 51125030053, 5221145173, 5222748694, H200WDK, KC251, P9626, SN70201, Z1024, Z963, and many other OEM references.

Why Fuel Filtration Matters

Modern diesel fuel systems operate at extremely high pressures and require clean fuel to function properly. Even small contaminants can damage injectors, reduce performance, and lead to expensive repairs. Replacing fuel filters at recommended intervals helps maintain fuel system health and maximize engine longevity.