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Specifications

The Donaldson P551856 screw-on fuel filter with water separator is engineered to provide superior diesel engine protection. Its high-efficiency media captures fine contaminants while separating water from fuel, preventing damage to pumps, injectors, and other critical components. The durable screw-on design allows fast and secure installation even in demanding environments. Ideal for commercial trucks, fleet vehicles, and industrial machinery, the P551856 enhances fuel system reliability, lowers maintenance costs, prolongs component life, and ensures consistent, long-term engine performance under harsh operating conditions.
Efficiency Test Std: ISO 4402/11171
Type: Water Separator
Gasket ID: 3.15 IN
Efficiency 90%: 30 MICRON
Primary Application: RACOR R90P
Style: Spin-On
Outer Diameter: 107.7 MM
Thread Size: 1-14 UN
Gasket OD: 3.54 IN
Bowl Thread: 3 3/4-10 BUTT (ANSI B1.9)
Length: 143.5 MM
Weight
1.5100

Compatibility

Heavy-duty trucks using Racor R90P style fuel systems

Volvo / Mack models employing 3945966 / 20879806 filter setups

Diesel vehicles with engines configured for spin-on fuel / water separation


Alternative Part Numbers

  • AGCO 6265154M1 OEM design, 143.5mm length
  • ALCO SP1314
  • ATLAS COPCO 1092035897
  • ATLAS COPCO 2914807000
  • ATLAS COPCO 4006527
  • CLAAS 0007733150
  • CLAAS 0687110
  • CLAAS 11342140
  • CLAAS 687110 OEM Bowl Thread Style
  • CLAAS 7733150
  • DAF 1296851
  • GROVE 04157422
  • GROVE 3322877
  • GROVE 4157422
  • HIMOINSA 3035101
  • HITACHI RE500186
  • HYUNDAI 11EM52320
  • JOHN DEERE AT433554 OEM design, 143.5mm length
  • JOHN DEERE RE500186
  • KNECHT KC249D
  • KOHLER 411900028
  • KONECRANES 8802008
  • LINDE 3562227703
  • LOCAL CHINA STCX785AB
  • LOCAL CHINA VF1467
  • LOVOL T750300013
  • MAN 51125030066
  • MERCEDES-BENZ 3754770002
  • MERCEDES-BENZ A3754770002
  • PREVOST CAR 19500494
  • SANDVIK 912029800
  • SANY A222100000207
  • SCANIA 1393640
  • SOLARIS BUS 0190142210
  • SOLARIS BUS 190142210
  • VMC FS551767
  • VOLVO 11110189
  • VOLVO 3945966
  • VOLVO 8159975
  • VOLVO 81599755

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