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NorthStar 157133 Cold PW – 4200 PSI 3.5 GPM Aluminum
$444.00
The NorthStar 157133 Cold Water Pressure Washer – 4200 PSI / 3.5 GPM (Aluminum Frame) is a powerful and lightweight industrial cleaning solution designed for professional contractors and commercial applications. Featuring a Honda GX390 engine and a CAT triplex pump, this high-performance pressure washer delivers exceptional cleaning force for removing tough dirt, grease, and debris from construction equipment, concrete surfaces, and fleet vehicles. Its corrosion-resistant aluminum frame enhances portability while maintaining durability, making the NorthStar 157133 an ideal choice for users who need maximum cleaning power combined with lightweight mobility and long-term reliability.
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Description
NorthStar 157133 Cold Water Pressure Washer – 4200 PSI / 3.5 GPM (Aluminum Frame)
The NorthStar 157133 Cold Water Pressure Washer is a professional-grade, high-pressure cleaning system designed for demanding commercial and industrial cleaning tasks. Delivering up to 4,200 PSI and 3.5 GPM water flow, this unit provides powerful performance for removing stubborn dirt, mud, grease, and surface contaminants from heavy equipment, concrete, and large exterior areas.
Built with a lightweight yet durable aluminum frame, the NorthStar 157133 offers improved portability without sacrificing strength. Powered by a reliable Honda GX390 commercial engine and equipped with a heavy-duty CAT triplex pump, this pressure washer is engineered for long service life, consistent output, and dependable operation in tough working environments.
Key Features
- High-performance 4,200 PSI maximum pressure
- Strong 3.5 GPM flow rate for efficient cleaning
- Durable Honda GX390 OHV commercial engine
- Industrial-grade CAT triplex plunger pump
- Lightweight aluminum frame construction
- Corrosion-resistant and job-site durable design
- Pneumatic tires for easy mobility across rough terrain
- Professional spray gun, wand, and quick-connect nozzles included
- Built for contractor, rental, and industrial use
- Optimized for long operating life and reduced fatigue handling
Applications
The NorthStar 157133 is ideal for:
- Heavy construction equipment cleaning
- Concrete and surface preparation work
- Fleet truck and trailer washing
- Industrial machinery degreasing
- Agricultural equipment cleaning
- Commercial property maintenance
- Contractor job sites and rental fleets
- Outdoor surface and graffiti removal
Performance Advantages
Ultra-High Pressure Cleaning (4200 PSI)
This model delivers strong impact force for breaking down hardened dirt, mud, and industrial buildup, making it suitable for professional-grade cleaning applications.
High Efficiency Flow (3.5 GPM)
The balanced water flow improves rinsing speed and cleaning efficiency, helping reduce overall job time in large-scale projects.
Lightweight Aluminum Frame
Unlike steel-frame models, the aluminum construction reduces weight while maintaining structural strength, making transportation easier and more efficient for mobile contractors.
Honda GX390 Engine Reliability
The GX390 engine is known for its durability, fuel efficiency, and consistent power output, ensuring dependable operation in demanding conditions.
CAT Triplex Pump Performance
The industrial-grade CAT pump provides stable pressure, long service life, and reduced maintenance requirements for continuous professional use.
NorthStar 157133 Cold PW – 4200 PSI 3.5 GPM Aluminum: Buying Considerations
The NorthStar 157133 Cold Water Pressure Washer – 4200 PSI / 3.5 GPM (Aluminum Frame) is a powerful and lightweight industrial cleaning solution designed for professional contractors and commercial applications. Featuring a Honda GX390 engine and a CAT triplex pump, this high-performance pressure washer delivers exceptional cleaning force for removing tough dirt, grease, and debris from construction equipment, concrete surfaces, and fleet vehicles. Its corrosion-resistant aluminum frame enhances portability while maintaining durability, making the NorthStar 157133 an ideal choice for users who need maximum cleaning power combined with lightweight mobility and long-term reliability.
Before ordering the NorthStar 157133 Cold PW – 4200 PSI 3.5 GPM Aluminum from NorthStar, review the points below against your actual site conditions and workload. Published specifications describe the equipment under test conditions, and real-world performance depends on how closely your application matches those conditions. Buyers in the United States, Canada, and Asia should also confirm local voltage and frequency requirements, applicable safety or emissions standards, and freight or import logistics for the destination before finalizing an order.
What to Check Before You Buy
- Start with the surface and contaminant being cleaned rather than the maximum pressure rating – too much pressure can damage softer surfaces.
- Use flow rate (GPM), not just pressure (PSI), to estimate realistic cleaning productivity – both factor into total cleaning power.
- Match every nozzle and accessory to the machine's rated pressure and flow to avoid damage or reduced effectiveness.
- Confirm water supply, hose length losses, and detergent compatibility before relying on the machine for a specific job.
Is higher PSI always better for a pressure washer?
No – PSI needs to match the surface being cleaned. Excessive pressure can damage wood, vehicle paint, or soft masonry. GPM (flow rate) often matters more than PSI for rinsing speed and overall cleaning productivity on large areas.
For sizing help across the full Pressure Washer category, compare specifications side by side before committing to a specific model, and confirm current pricing, availability, and freight details for your location. Keep the supplier data sheet and any acceptance criteria on record for future maintenance and replacement decisions.
| Specification | Details |
|---|---|
| Model | NorthStar 157133 |
| Type | Cold Water Pressure Washer |
| Pressure | 4,200 PSI |
| Flow Rate | 3.5 GPM |
| Engine | Honda GX390 (389cc) |
| Pump | CAT Triplex Pump |
| Frame Material | Aluminum |
| Drive Type | Direct Drive |
| Fuel Type | Gasoline |
| Hose Length | 50 ft |
| Wheels | Pneumatic tires |
| Max Inlet Temp | 140°F (60°C) |
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