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Case 850D & 855D Dozer Filters

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Case 850D & 855D Dozer Filters parts list
Image Fits Model Description Part # Price Product Details
Air Filter for Case 850D, 1088, 621B See Details 650, 650G, 850D, 850E, 850G, 855D, 855E, 888, 1088, 621, 621B, 621B-XT, 680L, 780C, 780D, 2090, 2094, 5130, 5140, 5150, 5230, 5240, 5250 Primary Air Filter A171838
$108.00
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Secondary inner air filter for Case dozers See Details 650, 650G, 850D, 850E, 850G, 855D, 855E, 888, 1088, 621, 621B, 621BXT, 680L, 780C, 780D, 2090, 2094, 5130, 5140, 5150, 5230, 5240, 5250 Secondary Air Filter A47033
$75.00
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Case Cummins 6B engine oil filter J934430 for 680K and 680L backhoe loaders See Details 680K, 680L, 780C, 780D, 850D, 850E, 850G, 850H, 855D, 855E, 1150E, 1150G, 1150H, W11B, W14B, W14C, 621, 621B, 621C, 621D, 880D, 888, 988, 1085C, 1088, 9030, 9030B, SV212, SV216, MX100-170, 1896, 2096, 5130-5250 Engine Oil Filter (Cummins 6B / 6-590 / 6T-590) J934430
$35.00
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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 Secondary Fuel Filter (Dual-Filter Cummins) J931063
$30.00
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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, Primary (Dual-Filter Cummins) J930942
$26.00
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Case hydraulic transmission oil filter spin-on 84239751 See Details 480D/E/F, 570LXT/MXT, 580D/SE/K/SK/L/SL/M/SM, 590T/SL, 350B, 450/B/C, 455B/C, 550/D/E/G/H, 650/G/H, 750H, 850D/E/G/H, 855D/E, 1650K, 1850K, 584C-G, 585C-G, 586C-G, 588G, 621/B/C, 721/B/C, 821/B/C, 40XT-95XT, 430, 435, 440, 445 Hydraulic / Transmission Filter, Spin-On 84239751
$84.00
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Cab Fresh Air Filter for Case Dozers See Details 650H, 750H, 850C, 850D, 850E, 850G, 850H, 855C, 855D, 855E, 1150C, 1150D, 1150E, 1150G, 1150H, 1155D, 1155E, 1550, 1490, 1690, 1896, 2090, 2094, 2096, 2290, 2294, 2390, 2394, 2590, 2594, 2670, 2870, 3294, 3394, 3594, 4490, 4494, 4690, 4894, 4994 Cab Air Filter (Dozers) F64318
$99.00
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258539A1 air pre-cleaner for Case equipment See Details 850B, 850C, 850D, 850E, 850G, 1150D, 855C, 855D, 855G, 1155D, W18B, W20C, W24C, 1206, 1256, 1270, 1370, 1456 Precleaner Assembly, 4-in Outlet (with Bowl) 258539A1
$49.00
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Air cleaner cap for Case 580L Series II backhoe See Details 580L-II, 580SL-II, 580M-I, 580SM-I, 590SL-II, 590SM-I, 570LXT-II, 570MXT, 550G, 550H, 650, 650G, 650H, 750H, 850B, 850C, 850D, 850E, 850G, 850H, 855C, 855D, 855E, 1150D, 1155D, W14B, W14C, W18B & more Precleaner Bowl, 10-1/2 in (3.75-in & 4-in precleaners) 277377R1
$17.00
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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 Fuel Filter Head Seal (Dual-Filter Cummins) J906695
$3.50
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Replacement filters for Case 850D and 855D crawler dozers, covering engine air, fuel, hydraulic, transmission, lube, and cab fresh air filtration for these mid-size track machines.

Fits Models At A Glance

  • 850D Series: 850D crawler dozer
  • 855D Series: 855D crawler dozer

Key Notes

  • Air Filtration: Primary and secondary engine air filters plus pre-cleaner assemblies and caps
  • Fuel System: Secondary fuel filters and fuel/water separator elements
  • Fluid Filtration: Spin-on hydraulic and transmission oil filters, full-flow engine oil and lube filters
  • Cab Comfort: Fresh air cab filter for operator air quality
  • Coverage: Full maintenance filter set for routine service intervals

Why Choose Broken Tractor

  • ✅ Correct fitment verified for 850D and 855D dozers
  • ✅ Fast shipping from two US warehouses
  • ✅ Knowledgeable support for Case dozer parts

Frequently Asked Questions

What filters do I need to service a Case 850D or 855D dozer?

For routine service on the 850D and 855D, Broken Tractor carries engine air filters (primary and secondary/inner), secondary fuel and fuel/water separator filters, spin-on hydraulic and transmission oil filters, full-flow engine oil and lube filters, plus a cab fresh air filter. This covers the main maintenance intervals for these crawler dozers. Match each filter by part number to be sure you have the right one for your machine.

What is the primary air filter for a Case 850D dozer?

The primary engine air filter for the 850D and 855D is offered under SKU A171838. For full air intake protection, pair it with the secondary (inner) engine air filter, SKU A47033, which fits the same 850D and 855D dozers. Both are listed with fitment for these models.

Does the same hydraulic filter fit both the 850D and 855D?

Yes, the spin-on hydraulic and transmission oil filter under SKU 84239751 lists fitment for both the 850D and 855D dozers. If you want to confirm it matches your machine before ordering, check the part number against your unit or contact the parts team at (800) 909-7060.

What is the difference between the secondary fuel filter and the fuel/water separator on a Case 855D?

The secondary fuel filter (SKU J931063) provides fine fuel filtration, while the fuel/water separator element (SKU J930942) removes water from the fuel before it reaches the engine. Both list fitment for the 850D and 855D, and many service intervals call for replacing both together. Match the part numbers to your machine to confirm the correct fit.

Does the Case 850D dozer have a cab air filter?

Yes, Broken Tractor carries a cab fresh air filter (SKU F64318) that fits 850D and 855D dozers for operator air quality. Replace it during routine service to keep clean fresh air flowing into the cab. Confirm fitment by matching the part number to your machine.

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Product: Category: Case 850D & 855D Dozer Filters Brand: Head Title: Case 850D & 855D Dozer Filters | Broken Tractor