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25VQ Series Vane Pump, 21 Ring Size, 7/8 Straight Keyed Shaft, Outlet in-Line with Outlet, CW Rotation

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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
in-Line with Outlet
Rated Flow
31.50
Rated Flow
31.5
Ring Size
21
Ring Size
21
Rotation
CW
Seal Material
Buna-N
Series
25VQ
Shaft
7/8 Straight Keyed
Shaft
7/8 Straight Keyed
Special Features
None
Speed Rating
2500 RPM
Speed Rating
2500 RPM
Supplier Part Number
416457-3
Alternate Part Numbers
Alternate Part Number 25VQ21A1C20, Alternate Part Number C1BP59
Product Weight
32.00 lbs
Product Questions & Answers 3

Product Questions & Answers

got a setup that needs clockwise rotation and the outlet lined up, is this pump built that way or am i gonna be fighting it
Question by: Danny G on Apr 21, 2025, 6:08 PM
From the get-go this model is a CW rotation pump with the outlet port in-line with the inlet, so it matches a clockwise drive and an inline port layout without needing you to re-orient anything.
Answer by: Customer Support on Apr 23, 2025, 6:50 AM
What kind of machine is this pump typically found on?
Question by: Dwight D on Aug 10, 2025, 10:36 AM
Typically you'll see these vane pumps on equipment like dump trucks, wheel loaders, and plastic injection molding machines, along with oil and gas and metal cutting applications.
Answer by: Customer Support on Aug 11, 2025, 1:04 PM
running this on a dump truck setup, does the 21 ring size give enough flow to keep up under load?
Question by: Johnny W on Jan 4, 2026, 10:47 AM
At 31.5 GPM rated flow and a 3000 PSI max pressure rating, the 25VQ21A-1C20 carries enough output for demanding mobile applications like dump trucks. The 21 ring size drives a displacement of 4.12 cubic inches per revolution, so at operating speed you're getting solid, consistent flow. Keep the shaft speed at or below the 2500 RPM rating and the pump will hold up well under the kind of sustained load those applications put on a hydraulic system.
Answer by: Customer Support on Jan 5, 2026, 11:46 AM

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Part Number Model Number Shaft Displacement Ring Size Rated Flow Port Location Rotation Maximum Pressure Speed Rating Price Buy Now
416457-2 25VQ21A-1B20 7/8 Straight Keyed 4.12 21 31.5 90 deg CW from Outlet CW 3000 2500 RPM
416457-3 25VQ21A-1C20 7/8 Straight Keyed 4.12 21 31.5 in-Line with Outlet CW 3000 2500 RPM
416457-4 25VQ21A-1D20 7/8 Straight Keyed 4.12 21 31.5 90 deg CCW from Outlet CW 3000 2500 RPM
416457-5 25VQ21A-1A20 7/8 Straight Keyed 4.12 21 31.5 Opposite Outlet CW 3000 2500 RPM
416457-6 25VQ21A-1B20-L 7/8 Straight Keyed 4.12 21 31.5 90 deg CW from Outlet CCW 3000 2500 RPM
416457-7 25VQ21A-1C20-L 7/8 Straight Keyed 4.12 21 31.5 in-Line with Outlet CCW 3000 2500 RPM
416457-8 25VQ21A-1D20-L 7/8 Straight Keyed 4.12 21 31.5 90 deg CCW from Outlet CCW 3000 2500 RPM
417992-2 25VQ17A-1B20 7/8 Straight Keyed 3.37 17 25.5 90 deg CW from Outlet CW 3000 2500 RPM
417992-3 25VQ17A-1C20 7/8 Straight Keyed 3.37 17 25.5 in-Line with Outlet CW 3000 2500 RPM
417992-4 25VQ17A-1D20- 7/8 Straight Keyed 3.37 17 25.5 90 deg CCW from Outlet CW 3000 2500 RPM
417992-5 25VQ17A-1A20-L 7/8 Straight Keyed 3.37 17 25.5 Opposite Outlet CCW 3000 2500 RPM
417992-6 25VQ17A-1B20-L 7/8 Straight Keyed 3.37 17 25.5 90 deg CW from Outlet CCW 3000 2500 RPM
417992-7 25VQ17A-1C20-L 7/8 Straight Keyed 3.37 17 25.5 in-Line with Outlet CCW 3000 2500 RPM
417992-8 25VQ17A-1D20-L 7/8 Straight Keyed 3.37 17 25.5 90 deg CCW from Outlet CCW 3000 2500 RPM
417993-2 25VQ14A-1B20 7/8 Straight Keyed 2.77 14 21.5 90 deg CW from Outlet CW 3000 2700 RPM
417993-3 25VQ14A-1C20 7/8 Straight Keyed 2.77 14 21.5 in-Line with Outlet CW 3000 2700 RPM
417993-4 25VQ14A-1D20 7/8 Straight Keyed 2.77 14 21.5 90 deg CCW from Outlet CW 3000 2700 RPM
417993-5 25VQ14A-1A20-L 7/8 Straight Keyed 2.77 14 21.5 Opposite Outlet CCW 3000 2700 RPM
417993-7 25VQ14A-1C20-L 7/8 Straight Keyed 2.77 14 21.5 in-Line with Outlet CCW 3000 2700 RPM
417994-2 25VQ12A-1B20 7/8 Straight Keyed 2.45 12 18 90 deg CW from Outlet CW 3000 2700 RPM
417994-3 25VQ12A-1C20 7/8 Straight Keyed 2.45 12 18 in-Line with Outlet CW 3000 2700 RPM
417994-4 25VQ12A-1D20 7/8 Straight Keyed 2.45 12 18 90 deg CCW from Outlet CW 3000 2700 RPM
417994-5 25VQ12A-1A20-L 7/8 Straight Keyed 2.45 12 18 Opposite Outlet CCW 3000 2700 RPM
417994-7 25VQ12A-1C20-L 7/8 Straight Keyed 2.45 12 18 in-Line with Outlet CCW 3000 2700 RPM
421472-2 25VQ14A-11B20 13 Tooth SAE B Splined 2.77 14 21.5 90 deg CW from Outlet CW 3000 2700 RPM
421472-3 25VQ14A-11C20 13 Tooth SAE B Splined 2.77 14 21.5 in-Line with Outlet CW 3000 2700 RPM
421472-4 25VQ14A-11D20 13 Tooth SAE B Splined 2.77 14 21.5 90 deg CCW from Outlet CW 3000 2700 RPM
421472-5 25VQ14A-11A20-L 13 Tooth SAE B Splined 2.77 14 21.5 Opposite Outlet CCW 3000 2700 RPM
421472-6 25VQ14A-11B20-L 13 Tooth SAE B Splined 2.77 14 21.5 90 deg CW from Outlet CCW 3000 2700 RPM
421472-7 25VQ14A-11C20-L 13 Tooth SAE B Splined 2.77 14 21.5 in-Line with Outlet CCW 3000 2700 RPM
421472-8 25VQ14A-11D20-L 13 Tooth SAE B Splined 2.77 14 21.5 90 deg CCW from Outlet CCW 3000 2700 RPM
421475-2 25VQ17A-11B20 13 Tooth SAE B Splined 3.37 17 25.5 90 deg CW from Outlet CW 3000 2500 RPM
421475-3 25VQ17A-11C20 13 Tooth SAE B Splined 3.37 17 25.5 in-Line with Outlet CW 3000 2500 RPM
421475-4 25VQ17A-11D20 13 Tooth SAE B Splined 3.37 17 25.5 90 deg CCW from Outlet CW 3000 2500 RPM
421475-5 25VQ17A-11A20-L 13 Tooth SAE B Splined 3.37 17 25.5 Opposite Outlet CCW 3000 2500 RPM
421475-6 25VQ17A-11B20-L 13 Tooth SAE B Splined 3.37 17 25.5 90 deg CW from Outlet CCW 3000 2500 RPM
421475-7 25VQ17A-11C20-L 13 Tooth SAE B Splined 3.37 17 25.5 in-Line with Outlet CCW 3000 2500 RPM
421475-8 25VQ17A-11D20-L 13 Tooth SAE B Splined 3.37 17 25.5 90 deg CCW from Outlet CCW 3000 2500 RPM
421477-2 25VQ21A-11B20 13 Tooth SAE B Splined 4.12 21 31.5 90 deg CW from Outlet CW 3000 2500 RPM
421477-3 25VQ21A-11C20 13 Tooth SAE B Splined 4.12 21 31.5 in-Line with Outlet CW 3000 2500 RPM
421477-4 25VQ21A-11D20 13 Tooth SAE B Splined 4.12 21 31.5 90 deg CCW from Outlet CW 3000 2500 RPM
421477-5 25VQ21A-11A20-L 13 Tooth SAE B Splined 4.12 21 31.5 Opposite Outlet CCW 3000 2500 RPM
421477-6 25VQ21A-11B20-L 13 Tooth SAE B Splined 4.12 21 31.5 90 deg CW from Outlet CCW 3000 2500 RPM
421477-7 25VQ21A-11C20-L 13 Tooth SAE B Splined 4.12 21 31.5 in-Line with Outlet CCW 3000 2500 RPM
421477-8 25VQ21A-11D20-L 13 Tooth SAE B Splined 4.12 21 31.5 90 deg CCW from Outlet CCW 3000 2500 RPM
429946-2 25VQ12A-11B20 13 Tooth SAE B Splined 2.45 12 18 90 deg CW from Outlet CW 3000 2700 RPM
429946-3 25VQ12A-11C20 13 Tooth SAE B Splined 2.45 12 18 in-Line with Outlet CW 3000 2700 RPM
429946-4 25VQ12A-11D20 13 Tooth SAE B Splined 2.45 12 18 90 deg CCW from Outlet CW 3000 2700 RPM
429946-5 25VQ12A-11A20-L 13 Tooth SAE B Splined 2.45 12 18 Opposite Outlet CCW 3000 2700 RPM
429946-6 25VQ12A-11B20-L 13 Tooth SAE B Splined 2.45 12 18 90 deg CW from Outlet CCW 3000 2700 RPM
429946-7 25VQ12A-11C20-L 13 Tooth SAE B Splined 2.45 12 18 in-Line with Outlet CCW 3000 2700 RPM
429946-8 25VQ12A-11D20-L 13 Tooth SAE B Splined 2.45 12 18 90 deg CCW from Outlet CCW 3000 2700 RPM
578308-2 25VQ19A-1B20 7/8 Straight Keyed 3.74 19 28.5 90 deg CW from Outlet CW 3000 2500 RPM
578308-3 25VQ19A-1C20 7/8 Straight Keyed 3.74 19 28.5 in-Line with Outlet CW 3000 2500 RPM
578308-4 25VQ19A-1D20 7/8 Straight Keyed 3.74 19 28.5 90 deg CCW from Outlet CW 3000 2500 RPM
578308-5 25VQ19A-1A20-L 7/8 Straight Keyed 3.74 19 28.5 Opposite Outlet CCW 3000 2500 RPM
578308-7 25VQ19A-1C20 -L 7/8 Straight Keyed 3.74 19 28.5 in-Line with Outlet CCW 3000 2500 RPM
629379-2 25VQ19A-11B20 13 Tooth SAE B Splined 3.74 19 28.5 90 deg CW from Outlet CW 3000 2500 RPM
629379-3 25VQ19A-11C20 13 Tooth SAE B Splined 3.74 19 28.5 in-Line with Outlet CW 3000 2500 RPM
629379-4 25VQ19A-11D20 13 Tooth SAE B Splined 3.74 19 28.5 90 deg CCW from Outlet CW 3000 2500 RPM
629379-5 25VQ19A-11A20-L 13 Tooth SAE B Splined 3.74 19 28.5 Opposite Outlet CCW 3000 2500 RPM
629379-7 25VQ19A-11C20-L 13 Tooth SAE B Splined 3.74 19 28.5 in-Line with Outlet CCW 3000 2500 RPM
416457-1 25VQ21A-1A20-L 7/8 Straight Keyed 4.12 21 31.5 Opposite Outlet CCW 3000 2500 RPM
417992-1 25VQ17A-1A20 7/8 Straight Keyed 3.37 17 25.5 Opposite Outlet CW 3000 2500 RPM
417993-1 25VQ14A-1A20 7/8 Straight Keyed 2.77 14 21.5 Opposite Outlet CW 3000 2700 RPM
417994-1 25VQ12A-1A20 7/8 Straight Keyed 2.45 12 18 Opposite Outlet CW 3000 2700 RPM
421472-1 25VQ14A-11A20 13 Tooth SAE B Splined 2.77 14 21.5 Opposite Outlet CW 3000 2700 RPM
421475-1 25VQ17A-11A20 13 Tooth SAE B Splined 3.37 17 25.5 Opposite Outlet CW 3000 2500 RPM
421477-1 25VQ21A-11A20 13 Tooth SAE B Splined 4.12 21 31.5 Opposite Outlet CW 3000 2500 RPM
429946-1 25VQ12A-11A20 13 Tooth SAE B Splined 2.45 12 18 Opposite Outlet CW 3000 2700 RPM
578308-1 25VQ19A-1A20 7/8 Straight Keyed 3.74 19 28.5 Opposite Outlet CW 3000 2500 RPM
629379-1 25VQ19A-11A20 13 Tooth SAE B Splined 3.74 19 28.5 Opposite Outlet CW 3000 2500 RPM