Donaldson Secondary Spin‑On Fuel Filter (P555776)

Ensure your diesel engine stays protected and performs at its best with the Donaldson P555776 secondary spin‑on fuel filter. Engineered for heavy‑duty applications, this filter is designed to remove harmful contaminants and safeguard your fuel injection system for longer service life.

Note: This filter is a common replacement for Cummins engines and Freightliner trucks, making it a smart choice for commercial diesel use.

Features:

• Secondary spin‑on fuel filter design for efficient contaminant removal.

• Excellent filtration media — up to 99% efficiency at 5 microns. 

• Outer diameter: ~4.65″ (118 mm) and length ~8.82″ (224 mm). 

• Thread size: M90 × 2 mm. 

• Built for heavy‑duty and commercial truck applications — reliable under demanding conditions. 

Applications:
Ideal for semi-trucks, heavy‑duty diesel vehicles, and fleet equipment — especially those using Cummins engines in Freightliner and other commercial setups.

Cross References:

• Baldwin – BF9885 

• Fleetguard – FF5776 

• Cummins – 2864993, 2893612, 4331007, 3685306 

• Hastings – FF1219 

• Luber‑Finer – LFF6776 

• Mann & Hummel – WK12003 

• CarQuest – 96498 

• NAPA – 600515

• Wix – 600123 

Others 

• 2864993

• 2893612

• 3685306

• 4331007

• 600123

• 96498

• DNP555776

• FF1219

• FTGFF5776

• MH30018

• S26381

• SF10123

• WK12003

• Z1007