590SL Front Axle Steering Cylinder & Axle Shaft

Front axle steering cylinders, axle shafts, tie rod ends, u-joints, and related drivetrain components for Case 590 Super L and 590 Super M backhoe loaders. Coverage spans Series I through Series III variants, including both standard and Carraro axle configurations.

Fits Models At A Glance

• 590 Super L: 590 Super L, 590 Super L Series I, 590 Super L Series II
• 590 Super M: 590 Super M Series I, 590 Super M Series II, 590 Super M Series III
• Earlier Compatible Models: 580K (ASN JJG0020000+), 580 Super K, 590 Turbo

Key Notes

• Steering Cylinders: Power steering cylinder and seal kits cover 4WD applications; verify 4-bolt vs. 2-bolt gland style on 580K applications
• Axle Shafts: Short and long shafts vary by series generation; Series III machines use Carraro axle components
• Tie Rod Components: Tie rod ends, jam nuts, and steering arm assemblies differ between Series I-II and Series III
• U-Joints and Yokes: Front axle u-joints and yokes fit multiple series; confirm shaft spline count before ordering
• Driveshaft Guards: Guard brackets vary between 590 Super L Series II and 590 Super M configurations

Why Choose Broken Tractor

• ✅ Series-specific fitment notes prevent costly ordering mistakes
• ✅ New and used axle parts available for aging machines
• ✅ Fast shipping from Baton Rouge, LA and Kimbolton, OH

Replacement filters for the Case 580L backhoe loader, covering engine oil, fuel, hydraulic, transmission, and air filtration across all 580L series variants including the 580 Super L Series I and Series II. Individual filters and complete maintenance kits are available for both turbo and non-turbo configurations.

Frequently Asked Questions

Does the power steering cylinder fit a Case 590 Super M?

Yes, the 4WD power steering cylinder (SKU D149729) fits the Case 590 Super M before serial number N4C999999, and it also fits the 590 Super L, 590 Turbo, 580 Super K and 580K after serial number JJG0020000. Fitment depends on serial number, so check your machine's serial plate before ordering. If you are unsure, match the part number from your old cylinder or call (800) 909-7060 to confirm with the parts team.

Can I reseal a Case 590 Super L steering cylinder instead of replacing it?

Yes, Broken Tractor offers a 4WD steering cylinder seal kit (SKU D149739) that fits the Case 590 Super L, 590 Super M, 590 Turbo, 580 Super K and other Case backhoes. On a 580K, the kit fits machines after serial number JJG0020000 with the 4-bolt steering cylinder, so verify a 4-bolt or 2-bolt gland style before ordering. If the cylinder itself is damaged, we also carry the complete power steering cylinder.

What front axle shafts fit a Case 590 Super M Series III?

The Case 590 Super M Series III uses Carraro axle components, and we carry a front axle short shaft (SKU 87710169) made specifically for that Carraro 4WD axle. We also offer a front axle long shaft (SKU 87416066) and a front axle shaft assembly (SKU 87415750) listed for the 590 Super M. Earlier 590 Super L and 590 Super M Series I and II machines use different parts, such as the outer short hub drive shaft (SKU N14409) and the shaft connector (SKU 390029A1), so confirm your series before ordering.

Which tie rod end fits a Case 590 Super M backhoe?

It depends on the series: the front axle tie rod end SKU 183677A1 fits the 590 Super L and 590 Super M Series I and II, while SKU 247523A1 fits the 590 Super M Series III. We also carry the matching right hand tie rod jam nut (SKU 126143A1), left hand tie rod jam nut (SKU 81878551) and steering tie rod end lock nut (SKU 12577021) for the 590 Super L and 590 Super M. Matching the part number from your old tie rod end is the surest way to get the right one.

Which front axle u-joint fits a Case 590 Super L?

Broken Tractor carries two front axle u-joints that fit the Case 590 Super L: SKU 195215A1, which fits the 590 Super L and 590 Super M, and SKU 9968059, which fits the 590SL, 590SM, 590 Turbo, 580K and other Case backhoes. For the 590 Super M, we also offer a u-joint spider (SKU 85807997) and an axle drive shaft yoke (SKU 144279A1). Confirm your shaft spline count before ordering a u-joint or yoke.