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Danfoss / Eaton-Gear Pump ASSY

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Description & Features

Designed for demanding fixed-displacement hydraulic applications, the Danfoss / Eaton-Gear Pump ASSY is a Series L2 external gear pump engineered to deliver reliable performance across a broad range of industrial and mobile equipment uses. Its field-reversible pump direction provides flexibility during installation and servicing, while reduced noise and vibration make it well-suited for environments where operational conditions are a consideration.

Improved volumetric and mechanical efficiency support consistent output across the working temperature range, which extends down to -20°. Application coverage spans agricultural machinery, civil engineering equipment, material handling systems, metal forming, primary metals processing, specialty construction, and natural resources sectors. Manufactured under the Danfoss Power Solutions brand, this pump reflects the Series L2 platform's focus on durability and adaptability in hydraulic circuits where a fixed-displacement external gear pump is specified.

SKU: 25503-LAF

Supplier Part Number (MPN): 25503-LAF

Specifications

Brand
Danfoss
Design Code
A
Dimensions
6.47 in L x 7 in W x 5.41 in H
Gear Type
Single-Stage
Housing Color
Flat Black
Housing Material
Aluminum
Identification
Standard
Inlet Size
1-5/8-12
Inlet Type
SAE O-ring
Model
25503
Mounting Type
Flanged
Outlet Size
1-1/16-12
Outlet Type
SAE O-ring
Rotation
Counterclockwise (Left-Hand)
Series
L2 Series
Shaft Type
Straight Keyed

Product Questions & Answers (2)

Question by: Randy R on Feb 7, 2026, 8:12 PM
been running the same piece of equipment for years and need to swap out the gear pump. this a fixed-displacement external gear unit?
Answer by: Customer Support on Feb 9, 2026, 6:51 AM
Fixed displacement is exactly what it is. The Series L2 platform this pump is built on covers external gear pump applications where you need consistent output without variable displacement complexity. It fits into hydraulic circuits that call for that type of pump, so if that's what your equipment is running, you're looking at the right category.
Question by: Ross P on Oct 16, 2025, 3:33 PM
Can this gear pump handle different kinds of hydraulic fluids, or do I need to stick with somethin' specific?
Answer by: Customer Support on Oct 18, 2025, 6:01 AM
This Danfoss/Eaton gear pump is designed for use with a range of hydraulic fluids commonly found in industrial and mobile applications. Refer to the manufacturer's datasheet for approved fluid types to ensure optimal performance and longevity.

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