| Weight | 31 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 | 4000 RPM |
| Pumps Displacement | 19.5 cm³/r (1.19 in³/r) |
| Pumps Ports In | G1" BSPP Straight Thread |
| Pumps Ports Out | G1/2" BSPP Straight Thread |
These FluiDyne V2020 double vane pumps are all direct Vickers replacements, fully SAE J744 compliant, and deliver up to 2500 PSI. The main differences between models are in flow rates, port orientation, rotation direction, shaft type, and speed limits—each impacting suitability for specific machine layouts and hydraulic circuit needs.
?? 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 |
|---|---|---|---|---|
| WF8251120 (Current) | 13 | 2500 PSI | 19.5 cm³/r (1.19 in³/r) | 2-Bolt Flange (SAE “A” size) |
| WF8251121 | 10 | 2500 PSI | 19.5 cm³/r (1.19 in³/r) | 2-Bolt Flange (SAE “A” size) |
| WF825111 | 11 | 2500 PSI | 19.5 cm³/r (1.19 in³/r) | 2-Bolt Flange (SAE “A” size) |
| WF825115 | 11 | 2500 PSI | 19.5 cm³/r (1.19 in³/r) | 2-Bolt Flange (SAE “A” size) |
| WF825116 | 11 | 2500 PSI | 19.5 cm³/r (1.19 in³/r) | 2-Bolt Flange (SAE “A” size) |
Difference: WF8251120 and WF825116 both provide a total flow of 19.0 GPM, while WF8251121 delivers 15.0 GPM, and WF825111 and WF825115 offer 12.0 GPM.
Selection Guide: Select WF8251120 or WF825116 for higher flow requirements (up to 19.0 GPM), or WF825111/WF825115 for lower flow needs.
Difference: WF8251120: 13/6 GPM (Front/Rear), WF825116: 11/8 GPM, WF8251121: 10/5 GPM, WF825111/WF825115: 11/1 GPM.
Selection Guide: Pick models with higher rear pump flow (WF825116) for circuits needing balanced or higher secondary flow; models with minimal rear flow (WF825111, WF825115) suit applications where the second circuit is low demand.
Difference: WF8251120: 2400 RPM, WF825116: 2500 RPM, WF8251121, WF825111, WF825115: 1800 RPM (limited by rear pump).
Selection Guide: Use WF8251120 or WF825116 for systems operating at higher RPMs; select others for standard-speed applications.
Difference: WF8251120: Both outlets inline (0°); WF8251121: Front outlet opposite (180°), rear outlet inline (0°); WF825111: Both outlets opposite (180°); WF825115: Both outlets 90° clockwise; WF825116: Both outlets 90° counterclockwise.
Selection Guide: Choose port orientation to suit your plumbing—inline for straightforward routing, 90° for side exits in tight spaces, 180° for rear-facing connections.
Difference: WF8251120, WF825115, WF825116: Right-Hand (Clockwise); WF8251121, WF825111: Left-Hand (Counter-Clockwise).
Selection Guide: Match pump rotation to your drive system; incorrect rotation can cause failure.
Difference: WF8251120, WF825111, WF825115: 13-Tooth Splined Shaft; WF8251121: Straight Keyed Shaft; WF825116: Shaft code 51 (not fully specified).
Selection Guide: Splined shafts are better for high-torque applications; straight keyed shafts are standard and may fit more common couplings.
Difference: WF8251120: SAE ‘A’ 2-Bolt Flange; others: SAE ‘B’ 4-Bolt Flange.
Selection Guide: Confirm your mounting pattern before ordering; SAE ‘A’ is typically for lighter-duty or more compact installations.
If you need: Maximum total flow (19.0 GPM) and higher front section flow
Choose: WF8251120
Because: Delivers 13 GPM front and 6 GPM rear, with high max speed (2400 RPM) and inline porting for simple plumbing.
If you need: Maximum total flow (19.0 GPM) but higher rear section flow
Choose: WF825116
Because: Offers a more balanced 11 GPM front/8 GPM rear split, higher RPM (2500), and 90° CCW porting for flexible installation.
If you need: Lower total flow (15.0 GPM) with left-hand rotation
Choose: WF8251121
Because: Suitable for applications with left-hand drive and moderate flow, with front/rear ports in opposite orientations.
If you need: Minimal rear flow (1 GPM) with right- or left-hand rotation
Choose: WF825111 (left-hand) or WF825115 (right-hand)
Because: Ideal for systems where the secondary circuit demands little flow, and where specific rotation or port orientation is required.
Compatibility: All models are 100% interchangeable with Vickers V2020 series, follow SAE J744 standards, and feature G1″/G1/2″ BSPP straight thread ports for straightforward replacement.
For detailed selection assistance, hydraulic troubleshooting, or application engineering, contact a Northern Hydraulics specialist at (800) 823-4937, Mon-Fri, 7 AM – 5 PM MST.
The WF8251120 from Fluidyne directly replaces Vickers WF8251120 units, offering seamless interchangeability for applications needing 19.5 cm³/r (1.19 in³/r) displacement and up to 2500 PSI maximum pressure. For alternative models in the same series, see the V20201F10S10S11AA30L – FluiDyne V2020..
Commonly used in agricultural equipment, construction machinery, utility vehicles applications.
Important: Verify pump model WF8251120 matches your existing Vickers unit before ordering. For technical assistance, contact (800) 823-4937.
Most hydraulic pumps ship within 1-2 business days. Made-to-order items typically require 5-7 business days.
For current availability on WF8251120, call (800) 823-4937.
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.
Questions? Call our specialists: (800) 823-4937
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