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Case 1850K Dozer Filters

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Case 1850K Dozer Filters parts list
Image Fits Model Description Part # Price Product Details
Case engine oil filter 87803261 for 580N and 590 Super N backhoe loaders with Iveco NEF engine See Details 570MXT S3, 580M, 580SM S2/S3, 580N, 580SN, 580SR, 590SM S2/S3, 590SN, 590SR, 590ST, 695SM, 695ST, 430-465, 445CT, 450CT, 850K II, 1150K, 1650L, 1850K, 521D/E, 621D, 721D/E/F, 821E/F, 921F, WX95-WX210 II, 865B, 885B, TX742, Magnum 180-225, 1150M, 750K Engine Oil Filter 87803261
$28.00
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Case combination engine oil filter 3621379M1 for 921, 921B and 921C wheel loaders See Details 921, 921B, 921C, 1850K, 9050B, 9060B, CX330, 885 Combination Engine Oil Filter 3621379M1
$90.00
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Fuel Filter for Case 580SN, 821F, 921F 87803200 See Details 1150K, 1650L, 1850K, 580SM III, 580N, 580SN, 590SM III, 590SN, 521E, 721E, 721F, 821E, 821F, 921F, 521G, 621F, 721D, 921G, 750L, 850L Fuel Filter 87803200
$29.00
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Compatible with BF788, FF5461 and P150564 fuel filters See Details 480E, 480ELL, 480F, 480FLL, 580K, 580L, 580SE, 580SK, 590 Turbo, 680K, 680L, 780C, 780D, 450B, 450C, 455C, 550, 550E, 550G, 550H, 650G, 650H, 750H, 750K, 850, 850D, 850E, 850G, 850H, 855D, 855E, 1150E, 1150G, 1150H, 1155E, 1550, 1650K, 1850K, 688, 88 Fuel Filter (Secondary) J931063
$30.00
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Fuel water separator filter Case 721D 721E 821E 921F wheel loader 504054011 See Details 327B, 330B, 335, 335B, 340, 340B, 1850K, 521E, 621E, 721D, 721DXT, 721E, 721F, 821E, 821F, 921F, 865B, 885B, Magnum Series: 180, 190, 200, 210, 220, 225, 240, 250, 280, 310, 340, 380, 521G Fuel Water Separator Spin-On 504054011
$49.00
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Case fuel water separator J286503 for 580 Super K and 590 Turbo backhoe loaders See Details 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 Fuel Water Separator Filter J286503
$35.00
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Fuel/Water Separator Filter for Case Equipment See Details 480E, 480F, 580K, 580L, 580SE, 580SK, 590 Turbo, 680K, 680L, 780C, 780D, 450B, 450C, 455C, 550, 550E, 550G, 550H, 650G, 650H, 750H, 750K, 850, 850D, 850E, 850G, 850H, 855D, 855E, 1150E, 1150G, 1150H, 1155E, 1550, 1650K, 1850K, 688, 88, 650, 850K, 721 Fuel Water Separator Filter (Primary) J930942
$26.00
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In-Line Fuel Filter for Case Backhoes, Dozers, Skid Steers, Loaders, Excavators & Trenchers See Details 580K-I, 1650K, 1850K, 1818, 1825B, 40XT, 60XT, 70XT, 85XT, 90XT, 95XT, 440CT, 445, 445CT, 450CT, 521D, 621D, 721, 721B, 721D, 821, 821B, W11, 688, 688C, 888, 1088, 1288, 1288C, 1488, 9010B, 9020B, 9030, 9030B, 9040, 9040B, 9045B, 460, 560, 660, 960 In-Line Fuel Filter D139225
$15.00
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Case hydraulic spin-on filter 84475949 for 410, 420 and 430 skid steer loaders See Details 410, 420, 420CT, 430, 435, 440, 445, 445CT, 450, 450CT, 465, 580SL S2, 580SM, 590SL S2, 590SM, 650K, 750K, 750L, 850K, 850K II, 850L, 1650K, 1850K, 721D, 721DXT, 721E, 821E, 860 Hydraulic Spin-On Filter 84475949
$113.00
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Engine Coolant for Case Tractors & Construction Equipment – Replaces A77544 See Details 1150E, 1150G, 1155E, 1850K, 721, 721B, 721C, 821, 821B, 821C, 921, 921B, 921C, 1288, 1288C, 1488, 9040, 9040B, 9050, 9050B, 9060, 9060B Engine Coolant Filter A77544
$50.00
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Secondary fuel filter head seal J906695 for Case 580K backhoe See Details 480E, 480ELL, 480F, 480FLL, 580K, 580L, 580SE, 580SK, 590 Turbo, 680K, 680L, 780C, 780D, 450B, 450C, 455C, 550, 550E, 550G, 550H, 650G, 650H, 750H, 750K, 850, 850D, 850E, 850G, 850H, 855D, 855E, 1150E, 1150G, 1150H, 1155E, 1550, 1650K, 1850K, 688, 88 Secondary Fuel Filter Head Seal J906695
$3.50
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Replacement fuel, oil, hydraulic, and water separator filters for the Case 1850K crawler dozer, covering engine maintenance and fluid filtration across the full service interval.

Fits Models At A Glance

  • 1850K Series: 1850K, 1850K S3

Key Notes

  • Fuel Filtration: Secondary fuel filters, in-line filters, and fuel/water separator spin-on elements
  • Engine Oil: Spin-on oil filters for Iveco and Cummins engine configurations
  • Hydraulic: Spin-on hydraulic filters for the main hydraulic system
  • Coolant: Engine coolant replacing A77544 for cooling system service
  • Application: Routine preventive maintenance and filter replacement intervals

Why Choose Broken Tractor

  • ✅ Verified fitment for Case 1850K dozers
  • ✅ Fast shipping from two US locations
  • ✅ Filters covering every service point

Frequently Asked Questions

What filters do I need to service a Case 1850K dozer?

Broken Tractor carries fuel, oil, hydraulic, and coolant filtration parts for the Case 1850K, covering the main service points. This includes secondary fuel filters, in-line fuel filters, fuel/water separator elements, spin-on engine oil filters, and a spin-on hydraulic filter. Matching your service interval to these filters keeps the engine and hydraulic system protected.

Which oil filter fits a Case 1850K with an Iveco engine?

We carry an Engine Oil Filter for Case equipment with Iveco engines, SKU 87803261, which fits the 1850K along with other Case models. For Cummins-configured 1850K units, we also offer separate oil and fuel/water separator options. Confirm your engine configuration by matching the part number, and the parts team can help if you are unsure.

Which fuel/water separator fits a Case 1850K S3?

The Fuel Water Separator Spin-On Filter for Case Cummins Engines, SKU J286503, lists the 1850K S3 in its fitment. For standard 1850K units, we also carry the fuel/water separator SKU J930942. Fitment can vary by serial number and engine, so match the part number or confirm with our parts team.

Does Broken Tractor have a hydraulic filter for the Case 1850K?

Yes, we carry a Hydraulic Spin-On Filter, SKU 84475949, that fits the Case 1850K main hydraulic system. It also covers a range of other Case models. Match the part number to your machine to confirm the correct filter.

What coolant replaces A77544 on a Case 1850K?

Broken Tractor offers Engine Coolant under SKU A77544 that replaces the original A77544 for Case cooling system service, and it fits the 1850K. This is used for routine cooling system maintenance. Call (800) 909-7060 if you need help confirming the right service parts for your machine.

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Product: Category: Case 1850K Dozer Filters Brand: Head Title: Case 1850K Dozer Filters | Broken Tractor