Case 580K, 580 Super K Hydraulic Seal Kits

Hydraulic cylinder seal kits and tools for Case 580K and 580 Super K backhoe loaders, covering complete seal rebuild packages, boom, dipper, bucket, stabilizer, swing, loader lift, loader tilt, clamshell, extendahoe, and steering cylinder circuits.

Fits Models At A Glance

• 480E / 480F / 570 Series: 480E, 480F, 570LXT, 570MXT, 570MXT Series III, 570NXT, 570N EP
• 580C / 580D / 580 Super E Series: 580C, 580D, 580E, 580 Super E
• 580K / 580SK / 580 Super K Series: 580K, 580K-III, 580SK, 580SL, 580SM, 580 Super K
• 580L / 580 Super L Series: 580L, 580SL, 580 Super L
• 580M / 580 Super M Series: 580M, 580SM, 580 Super M
• 580N / 580 Super N Series: 580N, 580SN, 580 Super N
• 590 Series: 590 Turbo, 590SL, 590SL Series I, 590SM, 590SN, 590T, 590 Super L, 590 Super M, 590 Super N

Key Notes

• Application: Hydraulic cylinder seal kits and tools for Case 580K and 580 Super K backhoe loader cylinders
• Coverage: Includes complete hydraulic cylinder seal rebuild packages in 3.25-inch and 3.5-inch swing cylinder bore sizes, boom cylinder seal kits, early and late dipper cylinder seal kits, bucket cylinder seal kits, stabilizer cylinder seal kits, swing, stabilizer, and loader lift cylinder seal kits, loader lift and bucket tilt cylinder seal kits, loader lift, loader tilt, and clamshell bucket cylinder seal kits, extendahoe and clamshell loader bucket cylinder seal kits, 4WD and 2WD steering cylinder seal kits, multi-application cylinder seal kits, hydraulic line supports, and cylinder tools
• Function: Restores hydraulic cylinder sealing and performance across all major cylinder positions on Case 580K and 580 Super K backhoe loader platforms
• Fitment Note: Two rebuild package swing cylinder bore sizes available — 3.25-inch and 3.5-inch — verify bore size when ordering; early and late 580K dipper cylinder seal kits differ

Why Choose Broken Tractor

• ✅ Complete seal rebuild packages available in 3.25-inch and 3.5-inch swing bore sizes
• ✅ Individual seal kits available for every major cylinder position
• ✅ 4WD and 2WD steering cylinder seal kit options available

Frequently Asked Questions

What dipper cylinder seal kit fits a Case 580K?

It depends on whether your 580K is an early or late machine, because the dipper cylinder seal kits are different. Broken Tractor carries the G110052 dipper cylinder seal kit for early 580K backhoes before serial number JJG0020000, and the 1542915C2 dipper cylinder seal kit for the 580K-III and 580 Super K. Check your serial number and match the part number on your cylinder before ordering.

What size Case 580K hydraulic cylinder seal kit package do I need?

Broken Tractor offers the complete seal rebuild package in two swing cylinder bore sizes: CS-SK-2-325 for a 3.25 inch bore and CS-SK-2-3.5 for a 3.5 inch bore. The 3.5 inch package fits the 580K and 580 Super K, and the 3.25 inch package fits the 580K. Measure or confirm your swing cylinder bore size before ordering so the package matches your machine.

Which steering cylinder seal kit fits a Case 580K 4WD?

The D149739 4WD steering cylinder seal kit fits the 580K after serial number JJG0020000 with the 4-bolt steering cylinder, and it also fits the 580SK. We also carry the G110045 power steering cylinder seal kit, which fits the 580K and 580 Super K. Steering kit fitment depends on serial number and cylinder style, so call (800) 909-7060 if you are not sure which one your backhoe uses.

What boom, bucket and stabilizer cylinder seal kits fit a Case 580 Super K?

Broken Tractor carries individual seal kits for each of these cylinders on the 580K and 580 Super K. The 1542919C4 kit fits the boom cylinder, the 1542923C2 kit fits the bucket cylinder, and the 1543275C1 kit fits the stabilizer cylinder. Matching the part number on your existing cylinder is the best way to confirm fitment.

What tools do I need to reseal a Case backhoe hydraulic cylinder?

We carry the CAS-1456A Case hydraulic spanner wrench for cylinder repair, which fits Case backhoes. We also offer the CAS-1457 hydraulic gland seal installation tool kit for working on hydraulic cylinders. Both tools are designed to help with cylinder disassembly and seal installation on Case 580K and 580 Super K cylinders.