Home » Hydraulics Shop » Hydraulic Pumps » Hydraulic Vane Pumps » Single Stage Vane Pumps » Fluidyne V20 WF820535 Vane Pump | Replacement for Vickers/Eaton V201S11S62A11R 3.7 GPM | 2500 PSI | SAE ‘A’ 2-Bolt | 3/4″ Keyed Shaft

Fluidyne V20 WF820535 Vane Pump | Replacement for Vickers/Eaton V201S11S62A11R 3.7 GPM | 2500 PSI | SAE 'A' 2-Bolt | 3/4" Keyed Shaft

Fluidyne V20 WF820535 Vane Pump | Replacement for Vickers/Eaton V201S11S62A11R 3.7 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
Pumps Rotation	Right-Hand (Clockwise)
Pumps Max Pressure	2500 psi
Pumps Rated Speed	1200 RPM
Pumps Max Speed	2800 RPM
Pumps Displacement	36.3 cm³/r (2.22 in³/r)
Pumps Ports In	G1" BSPP Straight Thread
Pumps Ports Out	G1/2" BSPP Straight Thread

Product Selection Guide

These hydraulic pumps—specifically, FluiDyne V20 Series vane pump models—are all direct Vickers replacements with identical SAE ‘A’ 2-bolt flange mounting and BSPP port options, but differ in flow rate, displacement, maximum pressure, port orientation, shaft type, and rotation direction. Selection should be based on your required flow (GPM), pressure, rotation, and installation constraints, which you can further explore in our single stage vane pumps category for additional sizing and options.

?? 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
WF820535 (Current)	11.5 GPM	2500 PSI	36.3 cm³/r (2.22 in³/r)	2-Bolt Flange (SAE “A” size)
WF820534	13.5 GPM	2500 PSI	42.6 cm³/r (2.60 in³/r)	2-Bolt Flange (SAE “A” size)
WF820531	6.2 GPM	2500 PSI	19.5 cm³/r (1.19 in³/r)	2-Bolt Flange (SAE “A” size)
WF820537 (Vickers replacement pumps)	6.2 GPM	2500 PSI	19.5 cm³/r (1.19 in³/r)	2-Bolt Flange (SAE “A” size)
WF8201811 (V201P13P39C11R – FluiDyne V20 Pump)	13.5 GPM	2500 PSI	42.6 cm³/r (2.60 in³/r)	2-Bolt Flange (SAE “A” size)

Key Differences

Flow Rate & Displacement

Difference: WF820531 and WF820537 deliver 6.2–7 GPM (1.19–1.39 in³/r); WF820535 delivers 11.5 GPM (2.22 in³/r); WF820534 and WF8201811 offer 13.5 GPM (2.60 in³/r).

Selection Guide: Choose WF820531 or WF820537 for compact systems or small actuators, WF820535 for medium-duty circuits, and WF820534 or WF8201811 for higher flow requirements.

Maximum Pressure

Difference: WF820535, WF820531, and WF820537 are rated to 2500 PSI; WF820534 and WF8201811 are rated at 2200 PSI (but listed as 2500 PSI in some specs).

Selection Guide: For applications requiring sustained operation at 2500 PSI, prefer WF820535, WF820531, or WF820537.

Shaft Type & Extension

Difference: WF820535 uses a 9-tooth splined shaft (1.25″ extension); others use 3/4″ straight keyed shafts (either 1.75″ or 2.66″ extension); WF8201811 has a special shaft (Code 39).

Selection Guide: Select splined (WF820535) for high-torque or splined couplings; straight keyed for standard couplings; use WF8201811 if a special shaft or Code 39 is required.

Rotation Direction

Difference: WF820535, WF820531, WF820537, and WF8201811 are right-hand (clockwise); WF820534 is left-hand (counter-clockwise).

Selection Guide: Choose WF820534 only if your system requires counter-clockwise rotation.

Port Position

Difference: WF820535: 180° (opposite inlet); WF820534, WF820531, WF8201811: inline (0°); WF820537: 90° clockwise from inlet.

Selection Guide: Select based on plumbing requirements—inline for straight-through connections, 90° or 180° for specific space constraints. For systems requiring integrated valve functionality, consider our pumps with integral valves.

Maximum Speed

Difference: WF820531: 3400 RPM; WF820537: 3000 RPM; WF820535: 2500 RPM; WF820534 and WF8201811: 2400 RPM.

Selection Guide: If your drive source operates above 2500 RPM, choose WF820531 or WF820537.

Quick Selection Guide

If you need: Compact flow for small actuators or pilot circuits (6.2–7 GPM), highest speed rating (up to 3400 RPM)

Choose: WF820531 or WF820537

Because: These models offer the smallest displacement, making them ideal for low-flow, high-speed applications.

If you need: Medium flow, standard pressure (11.5 GPM at up to 2500 PSI), high torque coupling

Choose: WF820535

Because: Provides a balance of flow and pressure, with a splined shaft for higher torque transmission.

If you need: High flow (13.5 GPM), counter-clockwise rotation

Choose: WF820534

Because: Only model here offering left-hand (CCW) rotation at higher flow rates.

If you need: High flow (13.5 GPM), right-hand rotation, special shaft configuration

Choose: WF8201811

Because: Use when a special shaft (Code 39) is required for unique drive couplings.

Compatibility: All models are 100% Vickers interchangeable, use SAE J744 ‘A’ 2-bolt mounting, and G1″/G1/2″ BSPP straight-thread ports for seamless retrofit and system integration.

For similar flow and pressure requirements but with alternate mounting or application needs, see the V201P13P3A11R – FluiDyne V20 Pump.

For help selecting the best Fluidyne V20 replacement for your system, hydraulic specialists are available Mon-Fri, 7 AM – 5 PM MST at (800) 823-4937. For more information about our vane pump line, visit our vane pumps overview. Volume pricing starts at 4 units and all pumps include a 12-month manufacturer warranty. Same-day shipping on in-stock items.

Purchasing Information

Availability & Delivery

Most hydraulic pumps ship within 1-2 business days. Made-to-order items typically require 5-7 business days.

For current availability on WF820535, 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

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
Cross-reference guides for common brands, including our entire Vickers replacement pumps specifications category,
Phone support: Monday-Friday, 7 AM – 5 PM MST

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

Compatibility & Applications

For more real-world installation examples and successful system retrofits using our hydraulic pumps applications, see our case studies page (contact us for details).

Direct Replacement Information

This Fluidyne unit serves as a direct replacement for Vickers WF820535 in systems requiring a 36.3 cm³/r (2.22 in³/r) displacement and up to 2500 PSI max operating pressure. For a wider selection of direct-fit models, browse our Vickers replacement pumps. With 100% interchangeability, it meets SAE J744 standards and is fully compatible with V20 series pump configurations..

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

Common Applications

Commonly used in marine applications, stationary power units, test stands.

marine applications
stationary power units
test stands

Important: Verify pump model WF820535 matches your existing Vickers unit before ordering. For technical assistance, contact (800) 823-4937.

SKU: WF820535

Fluidyne V20 WF820535 Vane Pump | Replacement for Vickers/Eaton V201S11S62A11R 3.7 GPM | 2500 PSI | SAE ‘A’ 2-Bolt | 3/4″ Keyed Shaft

Name: Fluidyne V20 WF820535 Vane Pump | Replacement for Vickers/Eaton V201S11S62A11R 3.7 GPM | 2500 PSI | SAE 'A' 2-Bolt | 3/4" Keyed Shaft
Brand: Northern Hydraulics Inc.
SKU: WF820535
Price: 299.2 USD
Availability: InStock