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45VQ Series Vane Pump, 50 Ring Size, 1-1/4 Straight Keyed Shaft, Outlet 90 deg CW from Outlet, CW Rotation

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Application
Oil and Gas, Metal Cutting, Dump Truck, Wheel Loader, Plastic Injection Molding
Displacement
9.90
Displacement
9.9
Brand
Danfoss (Power Solutions II LLC)
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
2500
Maximum Pressure
2500
Port Location
90 deg CW from Outlet
Rated Flow
77.14
Rated Flow
77.14
Ring Size
50
Ring Size
50
Rotation
CW
Seal Material
None
Series
45VQ
Shaft
1-1/4 Straight Keyed
Shaft
1-1/4 Straight Keyed
Special Features
None
Speed Rating
2200 RPM
Speed Rating
2200 RPM
Supplier Part Number
421966-2
Alternate Part Numbers
Alternate Part Number 45VQ50A1B20
Product Weight
75.00 lbs
Product Questions & Answers 3

Product Questions & Answers

What kind of machines would this pump be good for? I'm thinkin' about using it on a dump truck.
Question by: Rod R on Jan 26, 2026, 9:06 AM
This 45VQ series vane pump is listed as being suitable for dump trucks, along with metal cutting, oil and gas applications, wheel loaders, and plastic injection molding equipment.
Answer by: Customer Support on Jan 27, 2026, 6:26 PM
got a 45VQ50A1B20 pump on the machine now, is this SKU the same one with clockwise rotation?
Question by: Ray F on May 20, 2025, 6:16 PM
Match-up is straightforward here because the model number is called out as 45VQ50A1B20 and the rotation is CW, so it lines up with a clockwise rotating 45VQ, ring size 50 pump.
Answer by: Customer Support on May 21, 2025, 6:59 PM
Running a wheel loader application and need to confirm flow before I order. What's the rated output on this pump?
Question by: Shawn A on Oct 26, 2025, 6:50 PM
At 2200 RPM, this pump is rated for 77.14 GPM. That's a solid flow figure for wheel loader work and puts it well within range for high-demand mobile hydraulic circuits. The 50 ring size and 9.9 cubic inch displacement are what get you there, so if your system is sized around that flow range, you're looking at the right pump.
Answer by: Customer Support on Oct 28, 2025, 7:59 AM

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420616-2 45VQ42A11B20 14 Tooth SAE D Splined 8.46 42 65.92 90 deg CW from Outlet CW 2500 2200 RPM
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420616-4 45VQ42A11D20 14 Tooth SAE D Splined 8.46 42 65.92 90 deg CCW from Outlet CW 2500 2200 RPM
420616-5 45VQ42A11A20-L 14 Tooth SAE D Splined 8.46 42 65.92 Opposite Outlet CCW 2500 2200 RPM
420616-7 45VQ42A11C20-L 14 Tooth SAE D Splined 8.46 42 65.92 in-Line with Outlet CCW 2500 2200 RPM
420617-2 45VQ50A11B20 14 Tooth SAE D Splined 9.9 50 77.14 90 deg CW from Outlet CW 2500 2200 RPM
420617-3 45VQ50A11C20 14 Tooth SAE D Splined 9.9 50 77.14 in-Line with Outlet CW 2500 2200 RPM
420617-4 45VQ50A11D20 14 Tooth SAE D Splined 9.9 50 77.14 90 deg CCW from Outlet CW 2500 2200 RPM
420617-5 45VQ50A11A20-L 14 Tooth SAE D Splined 9.9 50 77.14 Opposite Outlet CCW 2500 2200 RPM
420617-6 45VQ50A11B20-L 14 Tooth SAE D Splined 9.9 50 77.14 90 deg CW from Outlet CCW 2500 2200 RPM
420617-7 45VQ50A11C20-L 14 Tooth SAE D Splined 9.9 50 77.14 in-Line with Outlet CCW 2500 2200 RPM
420618-2 45VQ60A11B20 14 Tooth SAE D Splined 11.8 60 91.94 90 deg CW from Outlet CW 2500 2200 RPM
420618-3 45VQ60A11C20 14 Tooth SAE D Splined 11.8 60 91.94 in-Line with Outlet CW 2500 2200 RPM
420618-4 45VQ60A11D20 14 Tooth SAE D Splined 11.8 60 91.94 90 deg CCW from Outlet CW 2500 2200 RPM
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420618-6 45VQ60A11B20-L 14 Tooth SAE D Splined 11.8 60 91.94 90 deg CW from Outlet CCW 2500 2200 RPM
420618-7 45VQ60A11C20-L 14 Tooth SAE D Splined 11.8 60 91.94 in-Line with Outlet CCW 2500 2200 RPM
421965-2 45VQ42A86B20 1-1/2 Straight Keyed 8.46 42 65.92 90 deg CW from Outlet CW 2500 2200 RPM
421965-3 45VQ42A86C20 1-1/2 Straight Keyed 8.46 42 65.92 in-Line with Outlet CW 2500 2200 RPM
421965-4 45VQ42A86D20 1-1/2 Straight Keyed 8.46 42 65.92 90 deg CCW from Outlet CW 2500 2200 RPM
421965-5 45VQ42A86A20-L 1-1/2 Straight Keyed 8.46 42 65.92 Opposite Outlet CCW 2500 2200 RPM
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421966-2 45VQ50A1B20 1-1/4 Straight Keyed 9.9 50 77.14 90 deg CW from Outlet CW 2500 2200 RPM
421966-3 45VQ50A1C20 1-1/4 Straight Keyed 9.9 50 77.14 in-Line with Outlet CW 2500 2200 RPM
421966-4 45VQ50A1D20 1-1/4 Straight Keyed 9.9 50 77.14 90 deg CCW from Outlet CW 2500 2200 RPM
421966-5 45VQ50A1A20-L 1-1/4 Straight Keyed 9.9 50 77.14 Opposite Outlet CCW 2500 2200 RPM
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