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25VQ Series Vane Pump, 21 Ring Size, 13 Tooth SAE B Splined Shaft, Outlet 90 deg CCW from Outlet, CCW Rotation

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Description & Features

This Eaton Vickers 25VQ Series Vane Pump is designed for high-pressure, high-speed applications and offers outstanding volumetric efficiency for demanding uses such as metal cutting, oil and gas, plastic injection molding, wheel loaders, and dump trucks.

The 25VQ Series Vane Pump features a 21 ring size, a 13 Tooth SAE B splined shaft, and a 2-Bolt SAE B mounting flange. This model is designed for CCW rotation and has a port location 90 deg CCW from Outlet. It has a maximum pressure of 3000 PSI and a rated flow of 31.5 GPM. The SAE 4-Bolt Flange Ports measure 1-1/2" Inlet and 1" Outlet. This vane pump is rated for speeds up to 2500 RPM.

SKU: 421477-8

Supplier Part Number (MPN): 421477-8

Specifications

Brand
Vickers by Danfoss
Cartridge Type
20 Design
Dimensions
8.21 in L x 6.87 in W x 5.4 in H
Displacement io
4.12
Drive Shaft Type
13 Tooth SAE B Splined
Grp Specifications
2-Bolt SAE B Mounting Flanged, SAE 4-Bolt Flanged Port, 1-1/2 in Inlet x 1 in Outlet
Housing Material
Iron
Maximum Operating Pressure
3000 psi
Mounting Type
Flanged
Port Location
90 deg CCW from Outlet
Rotation Direction
Counterclockwise
Seal Material
Buna-N
Series
25V Series
Vane Type
Fixed Displacement and Balanced

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Product Questions & Answers (2)

Question by: Kirk H on Feb 26, 2026, 8:55 PM
Got a 25VQ21A-11D20-L on a wheel loader that's been giving us grief. This replacement got the same shaft and port setup?
Answer by: Customer Support on Feb 28, 2026, 1:10 PM
Same shaft and port configuration as that model number. You're looking at a 13-tooth SAE B splined shaft with a 2-bolt SAE B mounting flange, and the inlet comes in at a 1-1/2 inch SAE 4-bolt flange port with a 1-inch outlet. The inlet sits 90 degrees counterclockwise from the outlet, and rotation is CCW. If your existing pump matches those specs, this one drops right in.
Question by: Pete P on Mar 25, 2026, 12:04 PM
got a pump tagged 25VQ21A-11D20-L, is this the same unit or am i close but not quite
Answer by: Customer Support on Mar 26, 2026, 5:31 PM
Match-up looks straightforward here. The model number on this pump is 25VQ21A-11D20-L, and it is a 25VQ series single vane pump with 21 ring size, 4.12 displacement, CCW rotation, and a 13 tooth SAE B splined shaft.

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