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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

Application
Oil and Gas, Metal Cutting, Dump Truck, Wheel Loader, Plastic Injection Molding
Displacement
4.12
Displacement
4.12
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
Maximum Pressure
3000
Maximum Pressure
3000
Port Location
90 deg CCW from Outlet
Rated Flow
31.50
Rated Flow
31.5
Ring Size
21
Ring Size
21
Rotation
CCW
Seal Material
None
Series
25VQ
Shaft
13 Tooth SAE B Splined
Shaft
13 Tooth SAE B Splined
Special Features
None
Speed Rating
2500 RPM
Speed Rating
2500 RPM
Supplier Part Number
421477-8
Product Weight
32.00 lbs

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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.