1086503 Piston As Fits Caterpillar Models
1086503 Piston As Fits Caterpillar Models
Couldn't load pickup availability
One New Aftermarket Replacement Piston Assembly for Caterpillar (Cat) Construction Equipment
This aftermarket replacement piston assembly fits the main hydraulic pump on Caterpillar (Cat) construction equipment. The hydraulic pump piston is a precision internal component that operates under high pressure within the pump's rotating group, maintaining fluid displacement and system performance. Worn or damaged pistons can cause loss of hydraulic pressure, reduced implement response, and increased pump wear. Replacing this piston restores pump efficiency and helps protect downstream hydraulic components.
Compatible Models
Caterpillar: Verify compatibility by serial number with your Cat dealer or parts catalog. This piston is designed for use in the main hydraulic pump assembly on applicable Caterpillar construction equipment models.
Replaces Part Number(s):
1086503
New aftermarket replacement part - not remanufactured, not used.
