Case Backhoe Secondary Shaft Parts

Secondary shaft components for Case backhoe loaders with Carraro transmissions, covering gears, synchronizers, bearings, thrust washers, seals, output flanges, and complete overhaul kits for 580L, 580M, and related models.

Fits Models At A Glance

• 570 Series: 570LXT, 570MXT, 570N EP, 570NXT
• 580L Series: 580L, 580 Super L, 580L Series I & II
• 580M/N Series: 580M, 580 Super M, 580N, 580 Super N, 580SN, 580SN WT
• 590 Series: 590 Super L, 590 Super M, 590SN
• Forklift Compat: 585G, 586G, 586H, 588G, 588H

Key Notes

• Application: Carraro secondary shaft assemblies and internal drivetrain parts
• Includes: First, second, third, and 4WD gears, synchronizers, and shift forks
• Sealing: Oil seals, O-rings, and washers for shaft retention
• Overhaul: 2WD and 4WD rebuild kits available for major service

Why Choose Broken Tractor

• ✅ Deep Carraro transmission parts knowledge and support
• ✅ Fast shipping from two US locations
• ✅ New and used options to fit any budget

Frequently Asked Questions

What parts are on the secondary shaft of a Case 580L Carraro transmission?

Broken Tractor carries the internal drivetrain components for the secondary shaft, including first, second, third, and 4WD gears, synchronizers, bearings, thrust washers, snap rings, and the secondary shaft oil seal. We also offer output flanges, the shift fork sleeve, and O-rings for shaft retention. For a full teardown, 2WD and 4WD overhaul kits are available to cover major service in one package.

How many teeth are the transmission gears for the Case 580L, 580 Super L, and 590 Super L?

The gears we carry for these models include a 49-tooth first gear (SKU 181189A1), a 43-tooth second gear (SKU 181190A1), a third gear (SKU 181191A1), and a 33-tooth 4WD gear (SKU 181224A1). These fit the 570LXT, 580L, 580 Super L, and 590 Super L. Match the SKU or tooth count to your existing gear to confirm the correct part.

Which Carraro transmission overhaul kit do I need for my Case 580 Super L, 2WD or 4WD?

Broken Tractor offers both a 2WD overhaul kit (SKU 278302A1) and a 4WD overhaul kit (SKU 278836A1) for the 570LXT, 580L, 580 Super L, and 590 Super L. Choose the kit that matches your machine's drive configuration. The 4WD kit fits units before specific serial number breaks (for example 580 Super L before JJG0239260), so confirm your serial number before ordering or call the parts team at (800) 909-7060.

Is the secondary shaft oil seal the same across Case 580L, 580M, and 580N Carraro transmissions?

Yes, the secondary transmission shaft oil seal (SKU 181123A1) fits a wide range of Carraro-equipped Case models including the 580L, 580M, 580N, 580SN, 580 Super L, 580 Super M, 590L, and 590 Super L. Because coverage is broad, match the part number to your transmission to be sure it is the right seal for your build.

Will Case 580L transmission synchronizers fit a 580M or 580N?

It depends on the specific synchronizer and your model. Broken Tractor carries several options, including one for the 580L, 580 Super L, and 590 Super L (SKU 366398A1) and another covering 580M, 580N, 590SN, and later series machines (SKU 87429974) with serial number requirements. Confirm your model, series, and serial number, then match the part number so you get the correct synchronizer.