Case 580L, 580SM Extendahoe Dipper Arm Parts

Extendahoe dipper arm parts for Case 580L through 580 Super M backhoe loaders, covering inner and outer dipper sticks, wear plates, shims, dipper pins, bushings, snap rings, washers, and locking pins for extendable dipper assemblies.

Fits Models At A Glance

• 580L Series: 580L, 580L Series I, 580L Series II, 580 Super L, 580 Super L Series I, 580 Super L Series II
• 580M Series: 580M, 580M Series I, 580 Super M, 580 Super M+
• 580K Series: 580K, 580K-III, 580 Super K

Key Notes

• Application: Extendable dipper stick assemblies and their pivot points
• Components: Inner and outer dipper sticks, wear plates, and shims
• Hardware: Pins, bushings, snap rings, and pin washers
• Extras: Extendahoe locking pins and hose support clamps

Why Choose Broken Tractor

• ✅ Verified fitment across Case 580 backhoe generations
• ✅ New and used dipper parts available
• ✅ Fast shipping from two US locations

Frequently Asked Questions

What is the difference between the inner and outer dipper stick on a Case 580L Extendahoe?

The outer dipper stick is the main pivoting arm attached to the boom, while the inner dipper stick is the extendable section that slides in and out through wear plates. Broken Tractor carries both, including the Inner Dipper Stick (SKU 122503A1) and Outer Dipper Stick (SKU 87619781) for 580L and 580M models. Match the part number to your machine or confirm fitment with the parts team before ordering.

How do I know if my Case 580 Super M Extendahoe wear plates need replacing?

Worn wear plates usually show up as excessive play or side-to-side movement in the extendable dipper section, along with uneven or noisy extension. Broken Tractor carries the Inner Dipper Wear Plate (SKU 451384A1) and the Extendahoe Wear Plate (SKU 363321A1), plus inner dipper shims (SKUs 132842A1 and 132844A1) to take up slack. Check your model and serial number against the fitment listed for each part.

What size pins and snap rings does the Case 580L dipper arm use?

We carry snap rings for 1-1/2 inch pins (SKU D25279), 1-3/4 inch pins (SKU 103-16175), and 2 inch pins (SKU 84158898), along with matching washers in 1.5 inch and 1.75 inch sizes. Dipper pins we offer include the Boom to Dipper Stick Pin (SKU D132494) and the Dipper Stick to Bucket and Cylinder Pin (SKU 129041A1). Confirm the pin diameter on your machine before choosing the correct snap ring and washer.

Do these dipper parts fit both the 580L and 580 Super M backhoes?

Many do, but fitment varies by part. Items like the Dipper Stick Bushing (SKU D140029) and Extendahoe Locking Pin (SKU D140247) fit 580K through 580 Super M, while some sticks and shims are listed only for specific 580L and 580M models. Always match the part number to your exact model and serial number, since Case changed dimensions across generations.

What is the Extendahoe locking pin used for on a Case 580M?

The Extendahoe locking pin secures the extendable dipper section in position so the inner stick can be locked for transport or certain digging operations. Broken Tractor carries the Extendahoe Locking Pin (SKU D140247), which fits 580K through 580 Super M and several 590 models. Verify the fitment listed for the pin against your machine before ordering.