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Specifications

The Donaldson P551838 spin-on fuel filter with water separator delivers superior diesel engine protection. Its high-efficiency media removes contaminants and separates water from fuel, preventing injector and pump damage. The durable spin-on design allows fast, easy installation and replacement. Ideal for heavy-duty trucks, fleet vehicles, and industrial equipment, this filter ensures consistent fuel flow, improves engine performance, reduces maintenance costs, and extends the service life of critical fuel system components under demanding conditions.
Efficiency Test Std: ISO 4402/11171
Type: Water Separator
Gasket ID: 3.59 IN
Efficiency 90%: 30 MICRON
Primary Application: MACK 21017305
Style: Spin-On
Outer Diameter: 109 MM
Thread Size: 1-14 UN
Gasket OD: 102.1 MM
Bowl Thread: 3 1/8-10 UN
Length: 128 MM
Weight
1.9200

Compatibility

Mack trucks using the 21017305 specification (various years) 

Volvo D-series trucks using Volvo 20879806 spec 

Other trucks with matching filter housing / fuel separator interface


Alternative Part Numbers

  • DAF TRP 1533893
  • MACK 20539578
  • MACK 21017305
  • MACK 21380521
  • MACK 22094987
  • MACK 23879508
  • NISSAN/UD TRUCKS 164009Z00C
  • NISSAN/UD TRUCKS 5221380479
  • NISSAN/UD TRUCKS 5222328204
  • RENAULT VI 7420998346
  • RENAULT VI 7421380472
  • RENAULT VI 7421764968
  • RENAULT VI 7421764981
  • UD TRUCKS 152009Z00D
  • UD TRUCKS 5222748702
  • VOLVO 20782330
  • VOLVO 20879806
  • VOLVO 21005832
  • VOLVO 21380475
  • VOLVO 21380490
  • VOLVO 21764964
  • VOLVO 21764966
  • VOLVO 21764968
  • VOLVO 23880047

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