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Hydraulic Double Vane Pump, VMQ Series Double Pump, 2.75 cu in/rev Front, 1.96 cu in/rev Rear, 2-Bolt SAE B Mounting Flange, 15T SAE-BB Splined Shaft, SAE 4-Bolt Flange, Inlet 3, Outlets 1 Front 1 Rear, CW Rotation

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Description & Features

This Eaton Vickers hydraulic double vane pump is part of the VMQ series and designed for use in oil and gas, metal cutting, dump truck, wheel loader, and plastic injection molding applications.

This hydraulic double vane pump features a 2-Bolt SAE B mounting flange and a 15T SAE-BB splined shaft. It has a front displacement of 2.75 cu in/rev and a rear displacement of 1.96 cu in/rev. The ports are SAE 4-Bolt Flange, Inlet 3, Outlets 1 Front 1 Rear, with CW rotation.

SKU: 711-0251-032

Supplier Part Number (MPN): 711-0251-032

Alternate Part Numbers: C1KK70, VMQ22525S045032A00200AAABFANR00A

Specifications

Brand
Vickers by Danfoss
Cartridge Type
32 Design
Configuration
Double
Dimensions
14.62 in L x 6.85 in W x 6.22 in H
Drive Shaft Type
15 Tooth SAE BB Splined
Flow Rate
3.8 to 40.65 gpm , 5.6 to 48.57 gpm
Frame Size
25
Housing Material
Iron
Maximum Operating Pressure
4500 psi
Mount io
2 Bolt SAE B
Mounting Type
2-Bolt SAE B
Number of Shaft Seal
1
Port
SAE 4-Bolt Flange, 3 in Inlet, 1 in Outlet, 1 in Rear Front
Port io
SAE 4-Bolt Flange, 3 in Inlet, 1 in Outlet, 1 in Rear Front
Rotation Direction
Clockwise
Seal Material
Buna-N
Segment Code
B
Series
VMQ2 Series
Shaft Seal
Single
Speed Rating
1800 rpm at 120 deg F, 3000 at 120 deg F
Vane Function Type
Pump

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Product Questions & Answers (2)

Question by: Pete C on Sep 15, 2025, 6:10 PM
Will this pump work alright on my dump truck? I'm looking to replace the one that's on there now.
Answer by: Customer Support on Sep 17, 2025, 4:19 PM
For dump truck applications, this Eaton Vickers VMQ series vane pump should be suitable. Just double-check that the specs, particularly the 2.75 cu in/rev front and 1.96 cu in/rev rear displacement, are compatible with your existing system.
Question by: Brett C on Mar 14, 2026, 3:54 PM
what's the displacement on the front and rear sections of this double pump?
Answer by: Customer Support on Mar 15, 2026, 7:32 PM
Front section pulls 2.75 cubic inches per revolution, rear section runs at 1.96 cubic inches per revolution. Both sections share a single inlet, with separate outlets for each, so you get two independent flow circuits off one pump body. That setup is real common on equipment where you're running two hydraulic functions that don't need to be tied together.

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