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Fuel Water Separator for Case 580K–590 Super M Backhoes, Cummins B – J286503

SKU:
J286503
FitsModel:
480F, 480F LL, 580L S2 After S/N JJG0239360, 580M S1, 580SK, 580SM S1, 590 Turbo, 590SM S1, 570MXT, 450C, 455C, 1850K S3, 521D Before S/N JEE0135500, 621B, 686G, 688G, 585G-588G, 460-860, 845, 865B, 885, 885B, 9030B, CX130, CX160, 1838, 1840, 1845C
ListDescription:
Fuel Water Separator Filter
Case fuel water separator J286503 for 580 Super K and 590 Turbo backhoe loaders
Part # J286503

Fits Models At A Glance:

Fits Case machines with Cummins B-series engines.

  • Case Backhoe Loaders: 480F, 480F LL, 580L Series 2 After Serial Number JJG0239360, 580M Series 1, 580 Super K, 580 Super M Series 1, 590 Turbo, 590 Super M Series 1, 590 Super L
  • Case Loader Landscapers: 570MXT, 570LXT
  • Case Crawler Dozers: 450C, 455C, 1850K Series 3
  • Case Wheel Loaders: 521D Before Serial Number JEE0135500, 621B, 621C
  • Case Telehandlers: 686G, 686G Series 2, 686GXR Series 2, 688G
  • Case Forklifts: 585G, 586G, 588G, 584E, 585E, 586E After Serial Number JJG0251722
  • Case Trenchers: 460, 560, 660, 760, 860, Maxi-Sneaker Series C, 960
  • Case Motor Graders: 845 After Serial Number N8AF07000, 865B AWD, 885 After Serial Number 024001, 885B AWD
  • Case Excavators: 9030B, CX130, CX160, 9010B After Serial Number DAC0102001, 9020B After Serial Number DAC0202001
  • Case Skid Steer Loaders: 1838, 1840, 1845C, 40XT, 60XT, 70XT, 75XT, 85XT, 90XT, 95XT

Key Notes:

  • Part Numbers: J286503, J931062, J903202, J843760, 114545A1, 71104220
  • Interchange Numbers: Cummins 3903202; Fleetguard FS1251; Donaldson P550248
  • Weight: 1.03 lbs (0.47 kg)
  • Dimensions: 5.63 in (143 mm) long, 3.03 in (77 mm) outside diameter
  • Thread: M16 x 1.5
  • Type: Spin-on fuel / water separator with drain
  • Sizing Note: The Iveco/FPT-engine machines (430–465 skid steers, 580M Series 2 and later, 580N, WX series) use the longer 176 mm separator 87803194 / 84171692 (Fleetguard FS19773). Same thread and diameter – measure before ordering.
  • Condition: Aftermarket replacement part

Common Use Case or Symptoms: Use when the engine stumbles after refueling or water appears in the bowl – a saturated separator passes water to the injection pump on Cummins B-series Case machines.

Why Choose Broken Tractor:

  • ✅ Correct FS1251 Numbers Only – the 176 mm FPT separator is kept on its own page so you cannot order the wrong length
  • ✅ Serial Breaks Spelled Out for 580L, 521D, 845 and 885
  • ✅ Fast Shipping from a U.S.-Based Team – ready to ship from our U.S. warehouses
$35.00

Shipping calculated at checkout. If any item in your order is temporarily unavailable, we'll contact you to arrange a back-order or refund — whichever you prefer.

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Product: Category: Brand: Head Title: Case Cummins Fuel Water Separator | Broken Tractor | J286503