1858979 Piston As Fits Caterpillar Models
1858979 Piston As Fits Caterpillar Models
Regular price
$209.99 USD
Regular price
Sale price
$209.99 USD
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One New Aftermarket Replacement Piston Assembly for Caterpillar (Cat) Excavators
This aftermarket replacement hydraulic pump piston assembly fits the main hydraulic pump on Caterpillar 311 and 312 series excavators. The piston assembly is a key internal component of the variable displacement swashplate axial piston pump that powers the boom, arm, bucket, and travel functions. Sold as a set of 9 pistons.
Compatible Models
Caterpillar Excavators: E311, E312, 311, 311B, 312, 312B
Replaces Part Number(s):
1858979
Aftermarket Interchange Numbers
5I8778, 5I-8778
New aftermarket replacement part - not remanufactured, not used.
