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Hydraulic Double Vane Pump, No. 2 outlet 135° CCW from inlet, 4.12 cu in/rev Front, 2.80 cu in/rev Rear, 2-Bolt SAE B Mounting Flange, 13T SAE B Splined Shaft, SAE 4-Bolt Flange, Inlet 2-1/2, Outlets 1 Front 3/4 Rear, CCW Rotation

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Description & Features

The Hydraulic Double Vane Pump No. 2 outlet 135 CCW from inlet is engineered for power steering and industrial small units and small press applications. Featuring a double configuration this pump offers a front displacement of 4.12 cu in/rev and a rear displacement of 2.80 cu in/rev.

Its 2-Bolt SAE B mounting flange and 13T SAE B splined shaft provide robust connectivity. The pump is designed with an SAE 4-Bolt flange an inlet of 2-1/2 inches and outlets measuring 1 inch front and 3/4 inch rear.

Built for high-pressure high-speed applications this pump ensures longer operational life and outstanding volumetric efficiency. With a counter-clockwise rotation this model is well-suited for demanding industry-specific requirements.

MPN: 428649-5

Supplier Part Number: 428649-5

Specifications

Application
Power Steering, Industrial small units and small press etc.
Configuration
33
Brand
DANFOSS POWER SOLUTIONS II LLC (VICKERS)
Brand
Danfoss Power Solutions
Pack Size
1.00
UOM
EA
Features
Longer operating life|Oustanding volumetric efficiency|Built for high-pressure, high-speed applications
Front Displacement
4.12
Mfg. Name
Vickers
Mount
2-Bolt SAE B
Mount
2-Bolt SAE B
Ports
SAE 4-Bolt Flange, Inlet 2-1/2, Outlets 1 Front 3/4 Rear
Ports
SAE 4-Bolt Flange, Inlet 2-1/2, Outlets 1 Front 3/4 Rear
Rear Displacement
2.80
Rotation
CCW
Seal Material
Buna-N
Series
2520VQ
Shaft
13T SAE B Splined
Shaft
13T SAE B Splined
Supplier Part Number
428649-5
Alternate Part Numbers
Alternate Part Number 2520VQ21A1411AA20LH, Alternate Part Number C1MJ97, Alternate Part Number MINO-00900H61961
Product Weight
45.00 lbs

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Product Questions & Answers (3)

Question by: Darryl T on Jan 18, 2026, 3:24 PM
Got a 2520VQ series setup I'm trying to match up a replacement for. This one's the 428649-5 with the 4.12 up front and 2.80 in the rear, CCW rotation. That all line up with what y'all carry?
Answer by: Customer Support on Jan 19, 2026, 6:47 PM
Yeah, that lines up exactly. SKU 428649-5 is the 2520VQ series double vane pump with 4.12 cu in/rev front displacement and 2.80 cu in/rev rear, running counter-clockwise rotation. The shaft is a 13T SAE B splined, and it mounts on a 2-bolt SAE B flange. Ports are SAE 4-bolt flange with a 2-1/2 inch inlet, 1 inch front outlet, and 3/4 inch rear outlet. If those specs match what came off your machine, this is the right unit.
Question by: Melvin K on May 28, 2025, 4:39 PM
trying to match up a double pump, what are the front and rear displacements on this one?
Answer by: Customer Support on May 30, 2025, 6:52 AM
For the double configuration, the front section is 4.12 cu in/rev and the rear section is 2.80 cu in/rev.
Question by: Howard C on Apr 3, 2025, 7:24 PM
Will this double vane pump work for power steering applications on smaller units?
Answer by: Customer Support on Apr 5, 2025, 4:51 PM
Yes, this hydraulic double vane pump is engineered specifically for power steering applications, as well as industrial small units and small press applications.