Battery cables can go through bottom of battery box cover. Opening under cover at both ends. Bulge in cover loops over into box.
NorthStar Gas Hot Water and Wet Steam Pressure Washer, 3500 PSI, 3.5 GPM, Honda GX390 Engine

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Shipping:
Free shipping (lower 48 states) - Available nowHeavy/large item. Lift gate service available.
Store Pickup:
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- 3,500 PSI, 3.5 GPM Cleaning Performance: Combines powerful pressure with high water flow to quickly remove grease, oil, mud, grime and other stubborn buildup
- Honda GX390 Gas Engine: 389cc engine with electric/recoil start delivers dependable power and 19.5 ft./lbs. gross torque for demanding cleaning applications
- Cat 66DX Direct Drive Pump: Premium triplex pump features a forged brass manifold and ceramic plungers for proven durability and consistent performance
- Wet Steam and Hot Water Cleaning Capability: Multi-fuel-powered burner heats water up to 250°F, with an industry-leading 150° temperature rise, producing hot water and wet steam to break down grease, oil and stubborn jobsite grime up to 2x faster
- Extended Run Time: Large 8-gal. fuel tanks allow extened cleaning sessions without having to refuel
Prop 65 Warning: See Details
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Description
Key Specs
Reviews
Q & A
Accessories
Warranty
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Product Summary
What's Included
- (1) NorthStar Gas Hot Water and Wet Steam Pressure Washer (5) Quick-connect nozzles (1) 50ft. high-pressure hose (1) Spray gun with 28in. lance
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ECONOMIC OPERATION
Enjoy greater FUEL ECONOMY with a DOWNDRAFT BURNER SYSTEM that not only reduces costs but also maximizes heating efficiency, ensuring quicker and more effective cleaning
ULTIMATE CLEANING MACHINE
Armed with cutting-edge 250°F WET STEAM technology and an industry-leading 150° TEMPERATURE RISE, this pressure washer melts away the toughest substances, setting a new standard for high-impact cleaning
DEPENDABLE PERFORMANCE
The robust HONDA GX390 ENGINE, complemented by a Cat direct drive pump, guarantees quiet, RELIABLE OPERATION, making every cleaning task more manageable
MOBILITY AND PROTECTION
Designed for easy transport over any terrain with large 15 INCH PNEUMATIC TIRES and protected by a rugged steel roll cage, this unit is BUILT FOR DURABILITY and CONVENIENCE
PRECISION HEATING CONTROL
The innovative digital thermostat outperforms others by delivering extremely ACCURATE TEMPERATURE REGULATION, ensuring hot water is consistently available without fluctuations
Features + Benefits

- 3,500 PSI, 3.5 GPM Cleaning Performance: Combines powerful pressure with high water flow to quickly remove grease, oil, mud, grime and other stubborn buildup
- Honda GX390 Gas Engine: 389cc engine with electric/recoil start delivers dependable power and 19.5 ft./lbs. gross torque for demanding cleaning applications
- Cat 66DX Direct Drive Pump: Premium triplex pump features a forged brass manifold and ceramic plungers for proven durability and consistent performance
- Wet Steam and Hot Water Cleaning Capability: Multi-fuel-powered burner heats water up to 250°F, with an industry-leading 150° temperature rise, producing hot water and wet steam to break down grease, oil and stubborn jobsite grime up to 2x faster
- Extended Run Time: Large 8-gal. fuel tanks allow extened cleaning sessions without having to refuel
- Downdraft Burner with Seamless Coil: Provides consistent heat and up to 35% better fuel efficiency
- Digital Thermostat: Provides superior temperature regulation to consistently deliver hot water without significant temperature variation
- AFI (Air/Fuel/Ignition) Delivery System: Runs the heating system without the need for a 12V battery
- Portable Wheeled Design: Cart-style design includes 15in. pneumatic tires, 50ft. high-pressure hose, spray gun with 28in. lance and (5) quick-connect nozzles
Key Specs
| Attribute | Specification |
|---|---|
item# | 157117 |
Brand | NorthStar |
Manufacturer's Warranty | 2 year limited warranty |
Ship Weight | 609.0 LB |
Pressure | 3,500 PSI |
Flow | 3.5 GPM |
Engine Brand | Honda |
Engine Model | GX390 |
Engine Displacement | 389 cc |
Fuel Type | Gasoline |
Pump | CAT 66dx |
Drive Style | Direct |
Number of Tips Included | 5 |
Adjustable Pressure | Yes |
Gross Torque | 19.5 ft-lbs. |
Start Type | Electric and Recoil |
Engine Oil Included | No |
| Attribute | Specification |
|---|---|
Engine Oil Type | SAE 30 |
Fuel Capacity | 8 Gal |
Max. Inlet Water Temp | 140 °F |
Max. Outlet Water Temp | 250 °F |
Orifice Size | 4 |
Chemical Injector | Yes |
Hose Length | 50 ft |
Coupler Size | 3/8 in |
Nozzle Type | 15° Wet Steam, 15°, 25°, 40°, and Chemical |
Quick Connect Nozzle | Yes |
Pump Oil Included | Yes |
Pump Oil Type | SAE 30 Nondetergent |
Low Oil Shutdown | Yes |
Thermal Protector | Yes |
Product Weight | 656.0000 lb |
Dimensions L x W x H (in.) | 55.5 x 41.5 x 48.3125 in |
Reviews
Questions & Answers
Questions
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· 5 years ago
how do you get the battery cables through the battery box
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Dic V· 3 years ago
Helpful?
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NorthstarExpert7· 5 years ago
The battery cables are connected to the pressure washer. The terminals that connect to the battery are located in the battery box.
Helpful?
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· 5 months ago
I need a uploader valve for this pressure washer
1 answer-
NorthstarExpert12· 5 months ago
The unloader assembly, part #CA7861, can be purchased through our sister company, Jacks Small Engines. Please visit www.JacksSmallEngines.com for pricing and availability.
Helpful?
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· 5 months ago
user manual?
1 answer-
NorthstarExpert12· 5 months ago
The Product Manual is located below the Product Summary on the web page.
Helpful?
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· 8 months ago
So is this a steamer and pressure washer or just pressure washer
1 answer-
NorthstarExpert12· 8 months ago
This pressure washer does include a steam nozzle for a wet steam. Wet steam is a mixture of water vapor and fine liquid water droplets. It delivers more heat along with a balanced level of flow and impact, which improves cleaning effectiveness and reduces spray back.
Helpful?
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· a year ago
Where can I buy those wheels?
1 answer-
NorthstarExpert12· a year ago
The replacement tire assembly, part #778295, is available through our sister company, Jacks Small Engines. Please visit www.JacksSmallEngines.com for pricing and availability.
Helpful?
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· 2 years ago
What type of oil does it require
1 answer-
NorthstarExpert12· 2 years ago
The pump uses SAE 30 non-detergent oil. SAE 10W-30 is the recommended engine oil for general use.
Helpful?
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· 2 years ago
how low can you turn pressure down ?
1 answer-
NorthstarExpert12· 2 years ago
We do not test for lowest pressure. If a lower pressure is desired, we advise using a larger nozzle.
Helpful?
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· 2 years ago
Were the water inlet is Need the round plastic piece we're the screen is in side
1 answer-
NorthstarExpert12· 2 years ago
The inlet filter, part #800986, is available through our sister company, Jacks Small Engines. Please visit www.JacksSmallEngines.com for pricing and availability.
Helpful?
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· 3 years ago
will this unit siphon soap
1 answer-
NorthstarExpert29· 3 years ago
This pressure washer includes a chemical injector that will siphon at a 13 to 1 ratio.
Helpful?
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· 3 years ago
Is this a pressurized chemical injection or low pressure chemical injection?
1 answer-
NorthstarExpert7· 3 years ago
When using the chemical nozzle, it is low-pressure spray. Cleaning chemicals applied under low pressure adhere better to the surface being cleaned, allowing the formula time to react and remove dirt
more effectively.Helpful?
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Warranty
Manufacturer's Warranty
2 year limited warranty
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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Currently Viewing This Product
Item # 157117
$6299.99Shipping:
Free shipping (lower 48 states) - Available nowHeavy/large item. Lift gate service available.
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Item # 157310
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Item # 157116
$5699.99Shipping:
Free shipping (lower 48 states) - Available nowHeavy/large item. Lift gate service available.
Store Pickup:
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Specifications
3,500 PSI
3,000 PSI
3,000 PSI
3.5 GPM
4 GPM
4 GPM
Honda
-
Honda
GX390
GX390
GX390
389 cc
389 cc
389 cc
Gasoline
Gasoline
Gasoline
CAT 66dx
CAT 66dx
CAT 66dx
Direct
Direct
Direct
5
6
4
Yes
Yes
Yes
19.5 ft-lbs.
18.5 ft-lbs.
18.5 ft-lbs.
Electric and Recoil
Electric
Recoil
No
No
No
SAE 30
SAE 30 Motor Oil
SAE 30 Motor Oil
8 Gal
8.75 Gal
1.61 Gal
140 °F
140 °F
140 °F
250 °F
250 °F
250 °F
4
4.5
4.5
Yes
Yes
Yes
50 ft
50 ft
50 ft
3/8 in
3/8 in
3/8 in
15° Wet Steam, 15°, 25°, 40°, and Chemical
0°, 15°, 25°, 40°, Steam and Soap
15° Wet Steam, 15°, 25°, 40°, and Chemical
Yes
Yes
Yes
Yes
Yes
Yes
SAE 30 Nondetergent
SAE 30 Nondetergent
SAE 30 Nondetergent
Yes
Yes
Yes
Yes
Yes
Yes
656.0000 lb
600.0000 lb
610.0000 lb
55.5 x 41.5 x 48.3125 in
64.0 x 33.0 x 42.5 in
47.5 x 61.5 x 47.875 in
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14 in
-
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