Home » Hydraulics Shop » Hydraulic Pumps » Hydraulic Vane Pumps » Single Stage Vane Pumps » Fluidyne V20 WF8201639 Vane Pump | Replacement for Vickers/Eaton V201P5P18C11R 1.8 GPM | 2500 PSI | SAE ‘A’ 2-Bolt | 3/4″ Keyed Shaft

Fluidyne V20 WF8201639 Vane Pump | Replacement for Vickers/Eaton V201P5P18C11R 1.8 GPM | 2500 PSI | SAE 'A' 2-Bolt | 3/4" Keyed Shaft

Fluidyne V20 WF8201639 Vane Pump | Replacement for Vickers/Eaton V201P5P18C11R 1.8 GPM | 2500 PSI | SAE 'A' 2-Bolt | 3/4" Keyed Shaft - Image 2

Specifications

Weight	18 lbs
Pump Mounting Flange	2-Bolt Flange (SAE "A" size)
Manufacturer	Fluidyne Fluid Power
Pumps Drive Shaft	3/4" Straight Shaft with Key (1.75" extension)
Pumps Rotation	Right-Hand (Clockwise)
Pumps Max Pressure	2500 psi
Pumps Rated Speed	1200 RPM
Pumps Max Speed	3400 RPM
Pumps Displacement	18.0 cm³/r (1.10 in³/r)
Pumps Ports In	G1" BSPP Straight Thread
Pumps Ports Out	G1/2" BSPP Straight Thread

Product Selection Guide

These hydraulic pumps from the FluiDyne V20 Series are all direct Vickers replacements, designed for easy interchangeability in systems using SAE ‘A’ 2-bolt mounting. The main differences are flow rate, displacement, shaft configuration, rotation direction, and port types. For a complete range of single stage vane pumps, see our category overview. Selecting the right model depends on your required flow, available speed, port compatibility, shaft/coupling requirements, and rotation direction for your system. To explore all vane pumps and their specifications, visit our dedicated section.

?? Important: The specifications shown are for reference and comparison purposes. Always verify specifications with the official manufacturer documentation or contact our technical team at (800) 823-4937 before ordering to ensure compatibility with your application. We cannot accept returns due to specification mismatches.

Model Number	Flow Rate	Max Pressure	Displacement	Mounting
WF8201639 (Current)	5.7 GPM	2500 PSI	18.0 cm³/r (1.10 in³/r)	2-Bolt Flange (SAE “A” size)
WF820169	13.5 GPM	2500 PSI	42.6 cm³/r (2.60 in³/r)	2-Bolt Flange (SAE “A” size)
WF8201695	13.5 GPM	2500 PSI	42.6 cm³/r (2.60 in³/r)	2-Bolt Flange (SAE “A” size)
WF8201611	6.2 GPM	2500 PSI	19.5 cm³/r (1.19 in³/r)	2-Bolt Flange (SAE “A” size)
WF820168	6.2 GPM	2500 PSI	19.5 cm³/r (1.19 in³/r)	2-Bolt Flange (SAE “A” size)

Key Differences

Flow Rate & Displacement

Difference: WF8201639 delivers 5.7 GPM (1.10 in³/r), WF8201611 and WF820168 deliver 6.2 GPM (1.19 in³/r), while WF820169 and WF8201695 provide 13.5 GPM (2.60 in³/r) at 1200 RPM.

Selection Guide: Choose WF820169 or WF8201695 for higher-output circuits needing 13.5 GPM. For lower flows, WF8201611, WF820168, or WF8201639 are suitable.

Rotation Direction

Difference: WF8201639, WF8201611, WF820168, and WF820169 are right-hand (clockwise). WF8201695 is left-hand (counter-clockwise).

Selection Guide: Match pump rotation to your drive shaft direction. Use WF8201695 for systems requiring left-hand (CCW) rotation.

Shaft Configuration

Difference: WF8201639, WF8201611, WF820168 have 3/4″ straight keyed shafts; WF820169/1695 feature 11-tooth splined shafts (with 2.94″ or 1.25″ extensions).

Selection Guide: Select splined shafts for higher torque or when using splined couplings. Use straight keyed shafts for standard couplings.

Port Type & Size

Difference: WF8201639 and WF8201611 have 1-1/4″ NPT inlet and 3/4″ NPT outlet; WF820169, WF8201695, and WF820168 use 1-1/4″ NPT inlet and 1-1/16″-12 straight thread outlet.

Selection Guide: Ensure port type matches your system plumbing. Use straight thread ports (WF820169, WF8201695, WF820168) for leak-resistant, high-pressure fittings.

Speed Ratings

Difference: WF8201611 and WF820168 allow up to 3400 RPM max speed, while others are rated to 2400–3000 RPM.

Selection Guide: For higher-speed drives, choose WF8201611 or WF820168.

Quick Selection Guide

If you need: High flow rate (13.5 GPM) at 1200 RPM

Choose: WF820169 (right-hand) or WF8201695 (left-hand)

Because: These models provide nearly 2.5× the output of others, ideal for larger actuators or parallel circuits.

If you need: Standard flow (6.2 GPM) with higher speed capability

Choose: WF8201611 or WF820168

Because: Both are rated to 3400 RPM max, suited for variable speed drives.

If you need: Compact low-flow application and standard shaft coupling

Choose: WF8201639

Because: Offers 5.7 GPM with a 3/4″ keyed shaft for simple installations.

If you need: Splined shaft for high-torque or specialty couplings

Choose: WF820169, WF8201695, or WF820168

Because: These models have 11-tooth splined shafts, preferred in demanding or OEM applications.

Compatibility: All models are 100% Vickers interchangeable, follow SAE J744 mounting, and use SAE ‘A’ 2-bolt flanges with G1″/G1/2″ BSPP ports for easy retrofit or replacement in existing systems. See our full lineup of Vickers replacement pumps for more options.

For model selection, cross-reference, or troubleshooting, consult Northern Hydraulics’ specialists at (800) 823-4937, Mon-Fri, 7 AM – 5 PM MST. Same-day shipping available on in-stock models. Volume pricing begins at 4 units. All pumps include a 12-month manufacturer warranty.

Compatibility & Applications

Direct Replacement Information

The WF8201639 from Fluidyne is a direct replacement for Vickers WF8201639, offering 18.0 cm³/r (1.10 in³/r) displacement, up to 2500 PSI maximum pressure, and SAE J744 mounting for seamless interchangeability. For similar performance with different mounting or shaft options, compare to the V201P5P1A11L – FluiDyne V20 Pump (18.0 cm³/r, 1.10 in³/r)..

Mounting Pattern: SAE ‘A’ 2-bolt
Inlet Port: G1″ BSPP
Outlet Port: G1/2″ BSPP

Common Applications

Commonly used in agricultural equipment, construction machinery, utility vehicles. For more real-world examples and hydraulic system applications, see our vane pump project gallery.

agricultural equipment
construction machinery
utility vehicles

Important: Verify pump model WF8201639 matches your existing Vickers unit before ordering. For technical assistance, contact (800) 823-4937.

Purchasing Information

Availability & Delivery

Most hydraulic pumps ship within 1-2 business days. Made-to-order items typically require 5-7 business days. If you require pumps with integral valves for more complex installations, view our specialized options.

For current availability on WF8201639, call (800) 823-4937.

Warranty & Protection

12-month warranty covers manufacturing defects
30-day return window for unopened units
Free technical verification before ordering
Each pump pressure tested before shipment. For detailed technical data and additional model comparisons, refer to V201P13P39C11R – FluiDyne V20 Pump (42.6 cm³/r, 2.60 in³/r).

Ordering Options

Order online for immediate processing. Phone orders welcome at (800) 823-4937.

Net 30 terms available for approved accounts.

Volume pricing available on orders of 4 or more units.

Support & Documentation

Installation guide included with every shipment
Technical drawings and specifications available. For additional high-flow options in the same product family, review V201P13P3A11R – FluiDyne V20 Pump (42.6 cm³/r, 2.60 in³/r).
Cross-reference guides for common brands
Phone support: Monday-Friday, 7 AM – 5 PM MST

Questions? Call our specialists: (800) 823-4937

SKU: WF8201639

Fluidyne V20 WF8201639 Vane Pump | Replacement for Vickers/Eaton V201P5P18C11R 1.8 GPM | 2500 PSI | SAE ‘A’ 2-Bolt | 3/4″ Keyed Shaft

Name: Fluidyne V20 WF8201639 Vane Pump | Replacement for Vickers/Eaton V201P5P18C11R 1.8 GPM | 2500 PSI | SAE 'A' 2-Bolt | 3/4" Keyed Shaft
Brand: Northern Hydraulics Inc.
SKU: WF8201639
Price: 299.2 USD
Availability: InStock