1931770 Packing Fits Caterpillar Models
1931770 Packing Fits Caterpillar Models
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One New Aftermarket Replacement Packing (Piston Seal) for Caterpillar (Cat) Equipment
This aftermarket replacement packing is a metric piston seal assembly designed for use in Caterpillar (Cat) hydraulic cylinders. Positioned between the piston and cylinder bore, this type of packing prevents hydraulic fluid from bypassing the piston, maintaining system pressure and enabling efficient cylinder operation. It is a direct replacement for Caterpillar OEM part number 1931770.
Packings of this type are used across a wide range of Cat construction and heavy equipment platforms including excavators, wheel loaders, dozers, motor graders, and backhoe loaders. Because this seal is used in multiple hydraulic cylinder assemblies across many machine models, please verify your specific model and serial number before ordering to confirm fitment.
Replaces Part Number(s):
1931770
New aftermarket replacement part - not remanufactured, not used.
