null
CALL or TEXT (800) 909-7060

Case Trencher Engine Crankshafts

ⓘ Click headers to sort ↕

Fits Models At A Glance: Case Backhoes:480E, 480F, 580 Super E, 580K, 580 Super K, 580L, 580 Super L, 590 Turbo, 590 Super L580M Series I (Before Serial # N4C303000)580 Super M Series I (Before Serial # N4C304000)590 Super M Series I (Before Serial #...

Image Fits Model Description Part # Price Product Details
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
$654.00
View Info

Fits Models At A Glance:

  • Case 300–900 Series Trenchers: 360, 460, 560, 660, 760, 860, 960

  • Case DH Series Trenchers: DH4, DH7

Key Notes:

  • Application: Engine crankshaft replacement for Case trenchers

  • Coverage: Standard and undersize crankshaft options depending on engine rebuild requirements

  • Material/Build: Forged and precision-machined steel construction

  • Function: Transfers piston force to the drivetrain while maintaining proper engine balance

Why Choose Broken Tractor:

✅ Heavy-Duty Engine Internals for Case Trenchers
✅ Application-Specific Fitment for Reliable Rebuilds
✅ Fast Shipping & U.S.-Based Support

Privacy Policy | Terms & Conditions

Copyright © 2026 Broken Tractor LLC - All Rights Reserved


Product: Category: Case Trencher Engine Crankshafts Brand: Head Title: Case Trencher Engine Crankshafts | Broken Tractor