The output shaft is approximately 1.5" long. There is no minimum RPM, the maximum is 3400 RPM.
NorthStar Pressure Washer Pump, 3000 PSI, 3.5 GPM, Belt Drive

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- Preplumbed and pretested for fast, reliable field installation
- Belt-drive design reduces pump RPM for longer life and cooler operation
- Fits 24mm pump shafts; ideal for quick bolt-on compatibility
- Requires 13 HP gas or 10 HP electric motor for optimal performance
- Bolts not included—reuse hardware from original pump for easy install
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Description
Key Specs
Reviews
Q & A
Accessories
Warranty
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Product Summary
What's Included
- (1) Pressure washer pump
Downloads
Features + Benefits
- Preplumbed and pretested for fast, reliable field installation
- Belt-drive design reduces pump RPM for longer life and cooler operation
- Fits 24mm pump shafts; ideal for quick bolt-on compatibility
- Requires 13 HP gas or 10 HP electric motor for optimal performance
- Bolts not included—reuse hardware from original pump for easy install
Key Specs
| Attribute | Specification |
|---|---|
item# | A1572041 |
Brand | NorthStar |
Manufacturer's Warranty | 12 months parts/12months labor |
Ship Weight | 22.0 LB |
Max. PSI | 4,000 |
| Attribute | Specification |
|---|---|
GPM | 3.5 |
Product Type | Pump |
Shaft Diameter | 24 in |
Fuel Type | Gasoline |
Reviews
Questions & Answers
Questions
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· 8 months ago
How long is shaft and what is minimum and maximum rpms?
1 answer-
NorthstarExpert12· 7 months ago
Helpful?
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· a year ago
what is the shaft size? the description says 24 in.
1 answer-
NorthstarExpert12· a year ago
This pump has a 24mm diameter shaft.
Helpful?
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· 3 years ago
Can these pumps be driven in either direction?
1 answer-
NorthstarExpert29· 3 years ago
This pump is bi-directional so it will operate when driven in either direction.
Helpful?
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· 4 years ago
How does it bolt on? Are the bolt holes adjustable slots? Also a belt tensioner bolt?
1 answer-
NorthStarExpert31· 4 years ago
This pump has fixed mounting holes. It does not come with a rail system with slotted mounting holes for belt tension adjustment. To allow for belt tension adjustment a rail system could be added or a belt tensioner could also be used.
Helpful?
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· 9 years ago
Can this pump be used directly from a 275gal water tote?
Want to know if this pump can be directly fed from a 275 gal water tote that is on my trailer.
1 answer-
NorthstarExpert13· 9 years ago
A pressure washer with this pump requires that the water supply is 20 % over the rated flow of the pump. The source for this pump must be able to fill a five gallon pump in less than 72 seconds. Damage can occur to the pump if it does not have sufficient water supply or if it is ran dry.
Helpful?
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· 10 years ago
Gear Drive or Belt Drive Only
Can this unit be mounted direct drive or with a gear reduction unit straight to the pump or does it have to be a belt driven only.
1 answer-
NorthstarExpert13· 10 years ago
This pressure washer pump is designed to be used for belt drive only.
Helpful?
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· 10 years ago
where is the oil window on this pump?
Can you post additional pictures? Thank you
1 answer-
NorthstarExpert11· 10 years ago
This pump has an oil sight glass on the side that's opposite the plunger side. This is the right side of the pump if the shaft is facing you. That side of the pump is pictured in the owner's manual on page 11. The manual can be viewed by clicking the link that's provided in the "Product Summary" section.
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· 11 years ago
can this pump be used for hot water ? and if yes up to what temp.
1 answer-
productexpert6· 11 years ago
This pump can be used with hot water with a maximum temperature of 140 degrees.
Helpful?
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· 11 years ago
Mounting question
Can this pump be mounted in a vertical shaft position?
1 answer-
NorthstarExpert13· 11 years ago
This horizontal pressure washer pump cannot be used in a vertical position.
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· 12 years ago
Would this work with a Honda GX340, 11 HP?
I have a pressure washer with the above stated engines and a bad Simpson 3000 PSI pump.
1 answer-
NorthstarExpert12· 12 years ago
The NorthStar Pressure Washer pump will require a 13 HP gas engine. We are unable to provide a belt driven pressure washer pump that will work with your Honda 11 HP engine.
Helpful?
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Accessories We Recommend
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Warranty
Manufacturer's Warranty
12 months parts/12months labor
Extend Your Warranty Coverage with a Northern Protection Plan (NPP)
Repair Plan — 1 Year
A Northern Protection Plan is available after adding the product to your shopping cart.
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Specifications
4,000
3,100
3,000
3,000
3.5
2.5
2.5
5.0
Pump
Pump
Pump
Pump
24 in
0.75 in
0.75 in
1 in
Gasoline
Natural Gas
Gasoline
Gasoline
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20 lb
-
-
-
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140 °F
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