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Case Skid Steer Crankshaft

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Case Skid Steer Crankshaft parts list
Image Fits Model Description Part # Price Product Details
Case backhoe 188 engine crankshaft replacement See Details 530, 580, 580B, 480B, 480C, 480D, 310, 350, 350B, 450 (before 3060305), 1740, 1835, 1835B, 1845, 1845B, 584D, 585D, 586D Crankshaft (Splined Pilot Hole) A151015
$595.00
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Case Cummins 4B crankshaft 3907803 See Details 580SE, 580K, 580SK, 580L, 580SL, 590T, 590SL, 580M, 580SM, 590SM, 570LXT, 570MXT, 584E, 585E, 586E, 585G, 586G, 588G, 450C, 550G, 550H, 650G, 650H, 650K, 750H, 750K, 1840, 1845C, 40XT, 60XT, 70XT, 75XT, 85XT, 90XT, 95XT, W11B, W14B, 660, 760, 686G Crankshaft (Cummins 4B & 4BT) 3907803
$590.00
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Case Cummins 6590 Engine Crankshaft -- J918324 | Broken Tractor See Details 680K, 680L, 780C, 780D, 850D, 850E, 850G, 850H, 850K-I, 1150E, 1150G, 1150H, W14B, W14C, 621, 621B, 621C, 880D, 1088, 9030, 9030B Crankshaft (Cummins) J918324
From $874.00
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Case Cummins Engine Connecting Rod -- J901569 | Broken Tractor See Details 480E, 480E LL, 580E, 580K, 580SE, 680K, 680L, 780C, 780D, 450C, 550, 550E, 550G, 550H, 650, 650G, 650K, 750K, 850D, 850E, 850E, 850G, 850H, 850K, 1150E, 1150G, 1150H, 1840, 1845C, 40XT, 60XT, 70XT, 75XT, 85XT, 90XT, 95XT Connecting Rod (Machine Split) J901569
$88.00
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Connecting Rod (Fracture Split) for Case Cummins Engines – 4943979 See Details 4B, 4BT 3.9, 6BT 5.9 QSB, 6BT359 Connecting Rod (Fracture Split) 4943979
$84.00
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Case 188 207 diesel engine crankshaft front seal A39110 See Details 310G, 350, 350B, 450, 450B, 450C, 455B, 455C, 550, 550E, 550G, 550H, 650, 650G, 850D, 850E, 850G, 855D, 855E, 480B, 480C, 480D, 480LL, 580, 580B, 580C, 580D, 580SD, 1835, 1835B, 1845, 1845B, 1845S, 584C, 584D, 585C, 585D, 586C, 586D, W11, DH5 Crankshaft Front Seal A39110
$88.00
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Engine Rod Bearing for Machine Split Rod – Cummins Engine See Details 480E, 480E LL, 580E, 580K, 580SE, 680K, 680L, 780C, 780D, 450C, 550, 550E, 550G, 550H, 650, 650G, 650K, 750K, 850D, 850E, 850E, 850G, 850H, 850K, 1150E, 1150G, 1150H, 1840, 1845C, 40XT, 60XT, 70XT, 75XT, 85XT, 90XT, 95XT Rod Bearing (Machine Split) A77465-A77469
From $16.00
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Connecting Rod (New) (Fracture Split) -- 4943979 See Details 4B390, 4BT 3.9, 4T390, 4TA390, 6B590, 6BT 5.9, 6T590, QSB Connecting Rod (Fracture Split) (Used) 4943979U
$30.00
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Crankshafts, connecting rods, and rod bearings for Case skid steer loaders running Case 188 gas and diesel engines and Cummins 4-390 series power, covering new and used components for uprights across the 1800 series and XT platforms.

Fits Models At A Glance

  • 1800 Series: 1835, 1835B, 1840, 1845, 1845B, 1845C
  • XT Series: 40XT, 60XT, 70XT, 75XT, 85XT, 90XT, 95XT

Key Notes

  • Application: Crankshaft assemblies, connecting rods, and rod bearings for the lower engine rotating assembly
  • Engine Fit: Case 188 gas and diesel, Cummins 4-390 and 4T-390 series
  • Rod Types: Fracture split and machine split connecting rods available new and used
  • Seal Coverage: Crankshaft front seals available for 188 and 207 diesel engines

Why Choose Broken Tractor

  • ✅ New and used crankshaft components in one place
  • ✅ Verified fitment across Case and Cummins engines
  • ✅ Fast shipping from two US warehouses

Frequently Asked Questions

What engine is in a Case skid steer?

Case skid steers in the 1800 series and XT platforms run either the Case 188 gas and diesel engine or Cummins 4-390 and 4T-390 series power. We carry crankshafts, connecting rods, and rod bearings covering both engine families. Match your part number or engine family to confirm the right rotating assembly for your machine.

Which crankshaft fits a Case 1845C or XT series skid steer?

The Engine Crankshaft for Cummins 4-390 and 4T-390 engines (SKU 3907803) covers the 1840, 1845C, 40XT, 60XT, 70XT, 75XT, 85XT, 90XT, and 95XT. Broken Tractor also carries the crankshaft for Case 188 gas and diesel engines (SKU A151015) for earlier models like the 1835, 1835B, 1845, and 1845B. Confirm your engine family before ordering since these machines used more than one engine over their production run.

What is the difference between fracture split and machine split connecting rods?

Fracture split and machine split refer to how the connecting rod cap is separated from the rod body, and they are not interchangeable. We carry the fracture split rod (SKU 4943979) for Cummins engines, a used fracture split rod (SKU 4943979U), and rod bearings sized for machine split rods (SKU A77465-A77469). Check which style your engine uses so the rod and bearings match.

Do you carry a crankshaft front seal for the Case 188 engine?

Yes, we offer the Crankshaft Front Seal for Case 188 and 207 diesel engines (SKU A39110), which fits skid steer models including the 1835, 1835B, 1845, 1845B, and 1845S along with many other Case machines. This seal covers the front of the crankshaft rotating assembly. Verify your engine is a 188 or 207 diesel before ordering.

Can I get a used connecting rod for a Cummins engine in a Case skid steer?

Yes, Broken Tractor carries a used fracture split connecting rod (SKU 4943979U) that fits Cummins engines including the 4B390, 4BT 3.9, 4T390, and 4TA390. We also stock new connecting rods and rod bearings for these engines. If you are unsure which rod type your engine uses, match the part number or contact the parts team at (800) 909-7060.

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Product: Category: Case Skid Steer Crankshaft Brand: Head Title: Case Skid Steer Crankshaft | Broken Tractor