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25VQ Series Vane Pump, 21 Ring Size, 7/8 Straight Keyed Shaft, Outlet in-Line with Outlet, CCW 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
CCW
Seal Material
None
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
416457-7
Product Weight
32.00 lbs
Product Questions & Answers 3

Product Questions & Answers

Will this fit where a 25VQ21A-1D20 is now?
Question by: Todd B on Mar 10, 2026, 6:35 AM
With its 2-bolt SAE B mounting flange and SAE 4-bolt flange ports (1-1/2" inlet, 1" outlet), this 25VQ series vane pump should be a direct mechanical replacement, assuming your existing system also uses a 7/8 straight keyed shaft and CCW rotation.
Answer by: Customer Support on Mar 11, 2026, 11:44 AM
i got a setup that needs counterclockwise rotation. is this pump built for that, or am i gonna be fighting it
Question by: Danny J on Jul 13, 2025, 10:38 AM
Rotation is specified as CCW on this 25VQ series single vane pump, so it matches a counterclockwise rotation requirement.
Answer by: Customer Support on Jul 14, 2025, 3:12 PM
runs counterclockwise, right? just want to make sure before i order cause last pump we put in was wrong rotation and it was a whole mess
Question by: Lynn M on Sep 14, 2025, 7:53 AM
Yes, CCW rotation on this one. The 25VQ21A-1C20L is spec'd for counterclockwise shaft rotation, so if your setup calls for that, you're good to go. Worth double-checking your drive coupling orientation before install just to save yourself the headache.
Answer by: Customer Support on Sep 16, 2025, 7:29 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