This pressure washer can withstand a maximum inlet water temperature of 140°F. Do not use bleach in this system, as it can damage the pump and other components.
NorthStar Tow-Behind Hot Water Commercial Pressure Washer Trailer with 2 Wands, 4000 PSI, 7 GPM, NorthStar Engine, 525-Gal. Water Tank, Belt Drive

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Shipping:
Store Pickup:
Out of stock at Fredericksburg VA
- 4,000 PSI, 7 GPM Commercial-Grade Cleaning Performance: Dual-wand cleaning capability delivers 7 GPM with 1 gun or 3.5 GPM with both guns to quickly remove grease, oil, mud, grime and other stubborn buildup
- NorthStar e740 EFI Gas Engine: Commercial-grade 739cc EFI engine delivers reliable starting, consistent performance, improved fuel efficiency and 38.4 ft./lbs. gross torque for the toughest cleaning applications
- Hot Water Cleaning Capability: Produces hot water up to 200°F to break down grease, oil and stubborn jobsite grime up to 2x faster
- 525-Gallon Water Tank: Large-capacity onboard water supply supports extended cleaning sessions and allows operation in locations without access to running water
- Trailer-Mounted Dual-Wand System: 7,000-lb. capacity highway-rated trailer setup includes dual hose reels with 150ft. high-pressure hoses, (2) spray guns with 4ft. lances, (15) quick-connect nozzles, a mounted toolbox and built-in jack with caster
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Description
Key Specs
Reviews
Q & A
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Product Summary
What's Included
- (1) NorthStar Tow-Behind Hot Water Commercial Pressure Washer Trailer with 2 Wands (2) Hose reels (2) 150ft. high-pressure hoses (2) Spray guns with 4ft. lances (15) Quick-connect nozzles
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BUILT TO LAST
Constructed with an industrial belt drive pump featuring a brass manifold and ceramic plungers, this machine is ENGINEERED FOR DURABILITY in the most demanding conditions
TOTAL JOB VERSATILITY
From ADJUSTABLE TEMPERATURE and PRESSURE to the convenience of diagnostic lights and easy startup, this trailer is designed for ease of use and versatility in any cleaning task
VERSATILE CLEANING POWER
Whether needing intense cleaning power from one gun or multitasking with two, this trailer delivers consistent 4,000 PSI for deep, EFFECTIVE CLEANING
UNMATCHED ENGINE QUALITY
The NORTHSTAR E740 ENGINE, verified by independent authorities, sets the gold standard in efficiency and power for COMMERCIAL-GRADE ENGINES, after exhaustive testing
EFI ADVANTAGE
Leverage the cutting-edge ELECTRONIC FUEL INJECTION TECHNOLOGY for more consistent starts, less fuel consumption and more power, setting new standards in operational efficiency
Features + Benefits

- 4,000 PSI, 7 GPM Commercial-Grade Cleaning Performance: Dual-wand cleaning capability delivers 7 GPM with 1 gun or 3.5 GPM with both guns to quickly remove grease, oil, mud, grime and other stubborn buildup
- NorthStar e740 EFI Gas Engine: Commercial-grade 739cc EFI engine delivers reliable starting, consistent performance, improved fuel efficiency and 38.4 ft./lbs. gross torque for the toughest cleaning applications
- Hot Water Cleaning Capability: Produces hot water up to 200°F to break down grease, oil and stubborn jobsite grime up to 2x faster
- 525-Gallon Water Tank: Large-capacity onboard water supply supports extended cleaning sessions and allows operation in locations without access to running water
- Trailer-Mounted Dual-Wand System: 7,000-lb. capacity highway-rated trailer setup includes dual hose reels with 150ft. high-pressure hoses, (2) spray guns with 4ft. lances, (15) quick-connect nozzles, a mounted toolbox and built-in jack with caster
- Adjustable Thermostat and Pressure: Variable pressure and water temperature can tackle any job
- Easy Start: Releases pressure buildup during startup, so the motor turns over smoothly
- Oil Sight Glass: Makes oil checks easy
- 12V DC Automotive or Marine Battery Required: Sold separately
Key Specs
| Attribute | Specification |
|---|---|
item# | 1575973 |
Brand | NorthStar |
Manufacturer's Warranty | 2 year limited warranty |
Ship Weight | 1950.0 LB |
Pressure | 4,000 PSI |
Flow | 7 GPM |
Engine Brand | Northstar |
Engine Model | E740 |
Engine Displacement | 739 cc |
Fuel Type | Gasoline |
Pump | Northstar |
Drive Style | Belt |
Number of Tips Included | 5 |
Adjustable Pressure | Yes |
Gross Torque | 38.4 ft-lbs. |
Start Type | Electric and Recoil |
Engine Oil Included | No |
| Attribute | Specification |
|---|---|
Engine Oil Type | SAE 30 Motor Oil |
Fuel Capacity | 15 Gal |
Max. Inlet Water Temp | 140 °F |
Max. Outlet Water Temp | 200 °F |
Orifice Size | 7 |
Chemical Injector | Yes |
Hose Length | 150 ft |
Coupler Size | 3/8 in |
Wheel Diameter | 15 in |
Nozzle Type | 0°, 15°, 25°, 40° and Soap |
Quick Connect Nozzle | Yes |
Pump Oil Included | Yes |
Pump Oil Type | Universal Tractor Transmission |
Low Oil Shutdown | Yes |
Thermal Protector | Yes |
Product Weight | lb |
Dimensions L x W x H (in.) | 198.0 x 77.75 x 71.5 in |
Reviews
Questions & Answers
Questions
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· 2 months ago
Does this pressure have the capability of holding 3 different types of water Hot, bleach and regular? If so, how does that work?
1 answer-
NorthstarExpert12· 2 months ago
Helpful?
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· 4 months ago
I've had this machine 10 years, the tank finally wore out. Can I just get the water tank??
1 answer-
NorthstarExpert12· 4 months ago
The water tank, part #796785, can be purchased through our sister company, Jacks Small Engines. Please visit www.JacksSmallEngines.com for pricing and availability.
Helpful?
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· 4 months ago
Need to replace insulation on burner. Where do I order parts on line? I need a parts Manuel for part numbers.
1 answer-
NorthstarExpert12· 4 months ago
Currently, the burner insulation is not sold as a separate part. Other parts for this unit can be found on pages 52-56 of the Product Manual located below the Product Summary on the web page. Parts can be purchased through our sister company, Jacks Small Engines. Please visit www.JacksSmallEngines.com for pricing and availability.
Helpful?
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· 4 months ago
Is the trailer DOT approved?
1 answer-
NorthstarExpert12· 4 months ago
This trailer is DOT approved.
Helpful?
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· 8 months ago
How many feet of hose comes with the wand?
1 answer-
NorthstarExpert12· 8 months ago
Each hose reel includes 100' of hose.
Helpful?
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· a year ago
When should I change oil filter
1 answer-
NorthstarExpert11· a year ago
The oil filter assembly part number 805816 and oil should be changed with in the first month or 20 hours of use. The maintenance schedule will then be every 6 months or 200 hours of use. Northern Tool no longer sells the replacement oil filter assembly. To order, please contact our sister company Jacks Small Engines at www.Jackssmallengines.com.
Helpful?
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· a year ago
What size oil filter is needed for this unit?
1 answer-
NorthstarExpert12· a year ago
The oil filter assembly, part #805816, is available through our sister company, Jacks Small Engines. Please visit www.JacksSmallEngines.com for pricing and availability.
Helpful?
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· a year ago
What is the torque spec for the lug nuts?
1 answer-
NorthstarExpert12· a year ago
This trailer has 1/2" lug nuts. The torque range is 75-85 ft.-lbs.
Helpful?
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· a year ago
How many gallons of fuel does it hold?
1 answer-
NorthstarExpert12· a year ago
The engine is equipped with a 15 gallon steel gas tank. The burner will also hold 15 gallons of fuel for heating.
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· a year ago
Wat size is the lid on water tank
1 answer-
NorthstarExpert12· a year ago
The fill cap, part #SNY34700088, has a 9.75" overall diameter. This part is available through our sister company, Jacks Small Engines. Please visit www.JacksSmallEngines.com for pricing and availability.
Helpful?
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Accessories We Recommend
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Warranty
Manufacturer's Warranty
2 year limited warranty
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Specifications
4,000 PSI
4,000 PSI
4,000 PSI
4,000 PSI
7 GPM
7 GPM
3.3 GPM
4 GPM
Northstar
-
Honda
Senci
E740
Command Pro V-twin
GX390
SV460
739 cc
725 cc
389 cc
459 cc
Gasoline
Gasoline
Gasoline
Gasoline
Northstar
Northstar
AR
Triplex pump with relief valve and ceramic sprayed surface plunger
Belt
Belt
Direct
Belt
5
-
4
4
Yes
Yes
Yes
Yes
38.4 ft-lbs.
38.4 ft-lbs.
-
-
Electric and Recoil
-
Recoil
Electric and Recoil
No
No
Yes
No
SAE 30 Motor Oil
SAE 30 Motor Oil
SAE 10W-30
10w-30
15 Gal
15 Gal
1.72 Gal
1.85 Gal
140 °F
140 °F
-
-
200 °F
200 °F
210 °F
-
7
3.5
3.5
-
Yes
Yes
Yes
No
150 ft
50 ft
50 ft
49.2 ft
3/8 in
3/8 in
3/8 in
-
15 in
-
13 in
-
0°, 15°, 25°, 40° and Soap
0°, 15°, 25°, 40° and Soap
Quick Connect
0° 15°, 25°, 40° and Soap
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Universal Tractor Transmission
Universal Tractor Transmission
PUMP OIL #AW-4085-0016
Yes (15w-30)
Yes
Yes
Yes
Yes
Yes
Yes
Yes
No
lb
800.0000 lb
500.0000 lb
392.4000 lb
198.0 x 77.75 x 71.5 in
45.5 x 54.25 x 46.25 in
43.0 x 30.0 x 41.0 in
36.8 x 40.0 x 33.4 in
-
-
No
-
See All Gas-Hot Water Pressure Washers
See All NorthStar Gas-Hot Water Pressure Washers
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