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PERMCO 257 SERIES

Description & Features

Designed for demanding hydraulic applications, the Permco 257 Series is a gear pump built to deliver reliable flow and pressure in mobile and industrial hydraulic circuits. Permco gear pumps in this series are known for their compact construction and suitability for use in medium-duty hydraulic systems where consistent performance is required.

As a Permco product, the 257 Series benefits from the manufacturer's established engineering standards for gear pump design, making it a recognized choice for equipment integrators and service professionals sourcing replacement or OEM-equivalent units.

Consult the full specification table on this page for displacement, port configuration, rotation, and mounting details specific to this model.

SKU: 592-00640

Supplier Part Number (MPN): 592-00640

Specifications

Brand Permco Inc.	Brand Permco	Pack Size 1.00	UOM EA	Supplier Part Number 592-00640	Product Weight 10.00 lbs

Product Questions & Answers (2)

Question by: Brenda R on Aug 8, 2025, 6:35 PM

Just want to make sure this is the Permco 257 series pump I need for my replacement. The number is 592-00640.

Answer by: Customer Support on Aug 10, 2025, 1:35 PM

That's correct. This is the Permco 257 Series pump with the supplier part number 592-00640.

Question by: Donna M on Feb 9, 2026, 9:25 AM

what exactly is the 257 series from permco? trying to figure out if its a pump or a motor before i order

Answer by: Customer Support on Feb 10, 2026, 10:15 AM

Permco's 257 Series falls under their gear pump product line. It carries the supplier part number 592-00640 and is sold under the Permco brand. Beyond that, the available product details are limited, so for fit and application specifics you'd want to cross-reference your equipment's requirements against Permco's documentation for this series before placing an order.