1772584 Piston-Brake Fits Caterpillar Models
1772584 Piston-Brake Fits Caterpillar Models
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One New Aftermarket Replacement Brake Piston for Caterpillar (Cat) Excavators
This aftermarket replacement brake piston (Piston-Brake) is designed for use in the swing parking brake system on Caterpillar mid-size hydraulic excavators. The brake piston engages and releases the swing motor parking brake, holding the upper structure stationary when the machine is not actively swinging. A worn or damaged brake piston can result in loss of swing holding force, brake drag, or hydraulic leakage.
Compatible Models
Caterpillar Excavators: 318C, 319C, 320C, 320C FM, 320C L, 320D, 320D FM, 320D FM RR, 320D GC, 320D L, 320D LN, 320D LRR, 320D RR
Verify compatibility using your machine serial number before ordering. Serial number restrictions may apply.
Replaces Part Number(s):
1772584
Aftermarket Interchange Numbers
191-5709, 3349981, 2959685, 2043690
New aftermarket replacement part - not remanufactured, not used.



