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Main Bearing Set for Cummins 4B, 4BT, 4TA 390 Engines – Case Equipment

SKU:
3802010
FitsModel:
480E, 480F, 570LXT, 580E, 580K, 580L, 580M, 590 Turbo, 450C, 455C, 550, 550E, 550G, 550H, 650, 650G, 650H, 650K, 750H, 750K, 9010, 9020, CX130, CX160, CX210, CX240, 1840, 1845C
ListDescription:
Main Bearing Set
Main bearing set for Cummins 4B390 engine
Part # 3802010

Fits Models At A Glance:

Fits Cummins 4B390, 4BT390, and 4TA390 engines.

  • Case Backhoes: 480E, 480F, 570LXT, 580E, 580 Super E, 580K, 580 Super K, 580L, 580 Super L, 590 Super L, 590 Turbo, 570MXT (Before SN JJG500000), 580M (Before SN JJG500000), 580 Super M (Before SN JJG500000), 590 Super M (Before SN JJG500000)
  • Case Dozers: 450C, 455C, 550, 550E, 550G, 550H, 650, 650G, 650H, 650K Series 1, 750H, 750K Series 1
  • Case Excavators: 9010, 9010B, 9020, 9020B, CX130, CX160, CX210, CX240
  • Case Skid Steers: 1840, 1845C, 40XT, 60XT, 70XT, 75XT, 85XT, 90XT, 95XT
  • Case Forklift: 584E, 585E, 586E, 586G, 588G
  • Case Trencher: 660, 760, 860, 960

Key Notes:

  • Only fits Cummins Motors
  • Application: Main bearing set — supports the crankshaft in the engine block on Cummins 4B, 4BT, and 4TA 390 engines
  • Engine Compatibility: Cummins 4B390, 4BT390, 4TA390
  • Condition: New aftermarket replacement
  • Available Sizes:
    • Standard
    • 0.25 mm undersize
    • 0.50 mm undersize
    • 0.75 mm undersize
  • Note: Measure crankshaft journals before ordering to select the correct undersize — incorrect sizing will result in improper bearing clearance

Why Choose Broken Tractor?

✅ New Aftermarket Quality – Precision main bearings engineered to restore proper crankshaft support on Cummins 4B series engines in Case equipment

✅ Multiple Size Options – Available in standard, 0.25mm, 0.50mm, and 0.75mm undersize to match your crankshaft condition

✅ Fast Shipping from a U.S.-Based Team – Get your engine rebuild moving quickly with fast delivery

$48.00

Shipping charges are calculated at checkout.
Items are NOT guaranteed to be in stock at the time of order.
Refunds are offered if the item is on back-order.

Can’t Find What You’re Looking For?

Our knowledgeable staff will be happy to help you with any of your tractor, backhoe, dozer, or engine parts needs.

1-800-909-7060 Parts Request Form

FEATURED PRODUCTS

Case Backhoe Cummins Engine Replacement See Details

Replacement Engine for Case models with 4B/4BT Cummins

Fits Model 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
Description Engine (Less Fuel)
Part # CS-4390-LB-N
Price
From $4,984.00
View Details
Cummins 4B fuel return line J909695 See Details

Fuel Return Line for Cummins 4B & 4BT Engines – J909695

Fits Model 480E, 480F, 570LXT, 580E, 580 Super E, 580K, 580 Super K, 590, 590 Super L, 450C, 455C, 550, 550G, 550H, 650, 650G, 1840, 1845C, 40XT, 60XT, 70XT, 75XT, 85XT, 90XT, 95XT, 584E, 585E, 586E, W11B, 688, 688B, 688C, 888, 9010, 9010B, 9020, 9020B, 686G
Description Fuel Return Line (Rotary Lucas CAV)
Part # J909695
Price
$80.00
View Details

Shipping & Return Policy

Do you need your part quickly? You're in luck! We have warehouses all over the country to ensure a quick and easy delivery time. Most of our parts ship from our warehouses the same day you place your order. And many times, orders are delivered in Two to Three days.

Our in house parts are manufactured following strict quality standards in our warehouse in Ohio. Parts such as hydraulic cylinders, pins, bushings, sheet metal, track adjusters, booms and dipper sticks are all ready to ship same day that they are purchased! With less time to wait for your shipment, you will be able to get back to work as quickly as possible.

Did you accidentally purchase the incorrect part? We offer returns and exchanges here at Broken Tractor. To proceed with a return, please call us toll free, and we will provide you with return authorization and a step by step return process for your convenience. We are more than happy to help you exchange your part for the correct one! Give us a call at 1-800-909-7060 and we would be pleased to help you.

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Product: Category: Brand: Head Title: Main Bearing Set for Cummins 4B, 4BT, 4TA 390 Engines – Case Equipment