The minimum horsepower is 25, and will be the same for an electric motor.
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Concentric High Performance Hydraulic Gear Pump, .61 cu. in., Model# WP09A1B100R03BA102N

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Shipping:
Free shipping (lower 48 states) - Available nowStore Pickup:
Not available - online only
- Displacement Cubic In.: .61
- Maximum Flow at 1,800 RPM: 4.72 GPM
- Maximum Flow at 3,600 RPM: 9.44 GPM
- Maximum RPM at 4,000 PSI: 3,600
- Outlet: 7/8in.-14
See full description
Description
Key Specs
Reviews
Q & A
Accessories
Warranty
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Product Summary
What's Included
- (1) High performance hydraulic gear pump
Downloads

Features + Benefits
- Displacement Cubic In.: .61
- Maximum Flow at 1,800 RPM: 4.72 GPM
- Maximum Flow at 3,600 RPM: 9.44 GPM
- Maximum RPM at 4,000 PSI: 3,600
- Outlet: 7/8in.-14
- Rotation: CW
Key Specs
| Attribute | Specification |
|---|---|
item# | 10597 |
Brand | Haldex |
Manufacturer's Warranty | 1 year limited warranty |
Ship Weight | 5.8 LB |
Max. PSI | 4,000 |
| Attribute | Specification |
|---|---|
Max. Flow Rate | 9.44 GPM |
Shaft Diameter | 0.75 in |
Pump Type | Gear |
Material | Multiple |
Thread Type | Other |
Reviews
Questions & Answers
Questions
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· 2 years ago
Power requirements needed
1 answer-
ProductExpert13· 2 years ago
Helpful?
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· 2 years ago
What is the torque spec on the 4 m10 bolts that hold it together? I would need to reverse the gears to get it to work on my setup
1 answer-
ProductExpert6· 2 years ago
The torque spec would be 34-35 foot pounds for this hydraulic gear pump.
Helpful?
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· 3 years ago
what size is the shaft
1 answer-
ProductExpert29· 3 years ago
This hydraulic gear pump has a 3/4" diameter shaft that is 1" long.
Helpful?
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· 4 years ago
Which way does it run clock wise
1 answer-
ProductExpert10· 4 years ago
The pump will turn clockwise.
Helpful?
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· 11 years ago
Bolt hole spacing
I am looking at the specs pdf page to get the bolt pattern spacing. PDF lists 3 models: W600, W900 or W1500.
All have different bolts patterns, which one is this?1 answer-
ProductExpert19· 11 years ago
This unit is the W900. The bolt hole pattern from center to center is 4.189".
Helpful?
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· 11 years ago
I have a crane that has a 3480 psi working pressure @ 8 gpm will this work
1 answer-
ProductExpert43· 11 years ago
The Concentric/Haldex high performance gear pump will work with your application.
Helpful?
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· 13 years ago
Why does the pump not work in reverse?
What happens if the shaft is rotated backwards?
1 answer-
ProductExpert6· 13 years ago
The gears in this pump are for only turning one direction in a clockwise rotation. If you were to try to turn the shaft in the wrong direction you will burn out the pump. The pump item #10598 will turn in the counter clockwise rotation.
Helpful?
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· 14 years ago
HP engine
What type of engine is recommended for this pump? How many HP, cc. etc? Better yet, what part number engine should go with this pump? Thanks
1 answer-
ProductExpert6· 14 years ago
The minimum HP required for this pump is 25 HP gas engine or electric motor. We do not have any electric motors that large. We do have a gas engine by Kohler in a 25 HP.
Helpful?
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Warranty
Manufacturer's Warranty
1 year limited warranty
Extend Your Warranty Coverage with a Northern Protection Plan (NPP)
Replacement Plan — 1 Year
A Northern Protection Plan is available after adding the product to your shopping cart.
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Specifications
4,000
3,000
3,000
3,000
9.44 GPM
16 GPM
11 GPM
9 GPM
0.75 in
0.5 in
0.5 in
0.5 in
Gear
Gear
Gear
Gear
Multiple
Multiple
Multiple
Multiple
Other
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-
-
-
Keyed
Keyed
Keyed
-
Two-Stage
Two-Stage
Two-Stage
-
lb
lb
lb
-
7.2 x 5.4 x 3.4 in
6.4 x 5.2 x 3.4 in
6.3 x 5.4 x 3.4 in
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