This NorthStar generator should not be exposed to the elements. The generator can be placed under a canopy-like structure, made from heat-resistant material which is open on all sides. All parts of the canopy need to be at least 7' away from the generator to allow adequate air flow and prevent heat from building up. At this time, we do not offer a structure for this application.
NorthStar Portable Generator with Honda GX270 Engine, 5500 Surge Watts, 4500 Rated Watts, CARB Compliant

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- Honda GX270 engine
- High-quality 100% copper-wound head with low THD for safe use with sensitive equipment
- Digital CDI ignition offers excellent starting and high-power output
- Full roll cage with anti-tip mounts prevent damage if tipped
- Solid base prevents grass, dirt and dust from getting into the engine and alternator
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Product Summary
What's Included
- (1) Portable generator
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Ultimate Protection, Ultimate Performance
Keeping America Powered for Over 20 Years
Pros and homeowners who want the best trust NorthStar generators' proven history of providing utility-grade electricity for reliable backup power, job sites, home projects, recreation and more. For over 20 years, NorthStar has set the portable power standard by engineering, assembling and rigorously testing all generator models at our state-of-the-art facility in Faribault, MN. Only premium quality components are used and each generator is backed by an industry-leading warranty. Trust NorthStar for dependable power in every situation, performance you can count on in emergencies and on the job.
Trusted in Emergencies
Powered by Honda Reliability
This NorthStar generator uses a top-of-the-line, commercial-grade Honda engine. This amazingly reliable, smooth-running engine provides everything you need on the job or in emergencies — easy-start convenience, improved power, greater fuel efficiency, longer run times and quieter operation.
Backed by Honda Durability
With an outstanding 3-year limited warranty, the Honda GX engine adds even more value to your NorthStar generator. You get smooth, robust performance plus years of worry-free dependability.
Clean Power Keeps Electronics and Appliances Safe
Today's appliances and electronics need clean power to run effectively. Clean power is smooth, steady power with low harmonic distortion. With less than 5% harmonic distortion at full load — the same as electricity from the utility company — this NorthStar generator provides reliable performance whenever you need it. Other brands advertise no load distortion levels yet actually have distortion levels as high as 20-30% at full load. Be sure to compare distortion levels at full load rating.
Engineered To Perform
Copper Heads Are Worth their Weight in Gold
Generator heads are often overlooked when it comes to choosing a generator. But their importance is key. NorthStar generators use oversized generator heads with 100% copper windings to provide the ultimate reliability and performance. Unlike other brands that use aluminum heads, we use copper-wound heads to allow your generator to run at full load continuously for weeks, if necessary, without the risk of overheating.
Less Vibration Means Less Wear, Longer Life
Excessive vibration is enemy number one to generators, causing premature wear and failure of generator components. Our advanced V-mount vibration isolation system helps create a solid foundation to extend generator life, adding optimum flexibility and support. Captive vibration isolation mounts protect the generator when being transported and an optimized vibration control system provides smoother operation and less metal fatigue.
More Outlets Handle More Jobs
When you're facing a power outage or a demanding project, it's good to have options and this NorthStar generator gives you plenty. A full bank of up to 10 outlets allow you to power more tools, appliances and essentials than other brands. Plus, a built-in volt meter provides feedback at a glance.
Fully Equipped
High Performance, Low Maintenance
This NorthStar generator is designed with all the extra features you need to keep power going in tough times. An extended run fuel tank reduces refilling and power interruptions. Variable Timing Digital CDI ignition offers excellent starting and high-power output. Tubular full steel roll cage construction with anti-rip V-mounts provide rock-solid protection. Locking plug outlets allow for easy connection to a transfer switch to get power up and running in minutes. You can also add a wheel kit for maximum portability.
Built To Last
Engineered to Last Up to 8 Times Longer
When it comes to quality, we're in a class of our own. NorthStar generators are designed and manufactured to last up to eight times longer than other brands.
Over 1000 Hours of Testing
Nobody tests generators more than we do. NorthStar engineers test each generator design to the point of failure to make sure your generator won't fail you. Thousands of hours of rigorous real-world testing situations in our Faribault, MN testing facility ensure optimum performance and maximum life. A test report is included with every generator to verify it is as good as the one we tested.
The NorthStar Advantage
Industry-Leading Warranty
NorthStar generators are built to last. For your extra peace of mind, we stand behind our product with an industry-leading 4-year consumer, 2-year commercial and 3 year Honda GX Engine limited warranty.
Guaranteed Satisfaction
Shop in complete confidence, knowing Northern Tool + Equipment protects your investment and is ready to provide you with the assistance and helpful resources you need.
Superior Service and Support
Should you ever need service or support, help is a phone call or e-mail away. NorthStar's field-trained technical staff is ready to help. For convenience, our professional in-store service department performs all repairs on site. Replacement parts are stocked at our Northern Tool + Equipment warehouse and ready to ship the same day your order is received.
Features + Benefits

- Honda GX270 engine
- High-quality 100% copper-wound head with low THD for safe use with sensitive equipment
- Digital CDI ignition offers excellent starting and high-power output
- Full roll cage with anti-tip mounts prevent damage if tipped
- Solid base prevents grass, dirt and dust from getting into the engine and alternator
- V-mount vibration isolation system extends generator life
- Includes voltmeter
- CARB compliant
- Optional wheel kit, Item# 165620, adds convenient portability
Key Specs
| Attribute | Specification |
|---|---|
item# | 165601 |
Brand | NorthStar |
Manufacturer's Warranty | 4 year limited warranty |
Ship Weight | 174.0 LB |
Surge Watts | 5,500 |
Rated Watts | 4,500 |
Fuel Type | Gasoline |
Voltage | 110/220 |
Engine Displacement | 270 cc |
Engine Brand | Honda |
| Attribute | Specification |
|---|---|
Noise Level | 73 dB |
Start Type | Recoil |
Fuel Capacity | 6.5 Gal |
Half-Load Run Time | 14.5 hr |
Battery Required | No |
Battery Included | No |
Low Oil Shutdown | Yes |
CARB Compliant | Yes |
Product Weight | lb |
Dimensions L x W x H (in.) | 25.75 x 21.25 x 22.25 in |
Reviews
Questions & Answers
Questions
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· 12 years ago
I need to run this generator in the weather. Is it made for this use, and can you buy a cover for it while its running.
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NorthstarExpert12· 3 years ago
Helpful?
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4864· 9 years ago
Runs great in all kinds of weather. No cover needed
Helpful?
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· 14 years ago
Is this generator rated for continuous duty?
Say, 8-10 hours a day
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NorthstarExpert12· 3 years ago
For continuous operation, be prepared to check and refuel the engine on a regular basis. A tank of gasoline should last about 4 hours under a full load and about 8 hours under a half load. Stop the engine and allow it to cool at least two minutes before adding fuel. Once fuel is added, the generator can be restarted. Other operating and maintenance information can be found in the product manual, located on the product web page.
Helpful?
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farmerwannabee· 14 years ago
I use my generator most often for standby emergency power. When I do, it runs continuously for as many hours (except for twice a day refueling) as the outage lasts. I only needed it for 16 straight hours for Sandy, but it ran "continuously" for seven days for my longest outage. I've never experienced overheating or any other symptoms of continuous duty. My 5500 watt NorthStar generator has needed no maintenance except the routine in about five years of operation.
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· 14 years ago
the picture shows the wheels..does the wheels come with the generator or is that an option??
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NorthstarExpert12· 3 years ago
The wheel kit is sold separately as item 165620.
Helpful?
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SandySurvivor· 14 years ago
extra cost item, you will definitely want
Helpful?
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· 14 years ago
Running at Rated Load...
Is it actually safe to run this unit at 4500 watts for extended periods of time, such as powering a water heater that uses exactly 4500 watts? Will maxing out the rated load put undue strain the generator or cause any damage or risk at all?
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NorthstarExpert12· 3 years ago
While all NorthStar generators can run at the full rated wattage, we do not recommend doing so for extended periods of time. When the generator runs at full capacity, more stress is put on the engine and the generator head which can shorten the lifespan. Running a larger generator, like item 165603, at a lower load will extend the lifespan and provide better fuel economy.
Helpful?
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GP150· 14 years ago
If all you need to run is the water heater, yes. However, consider what else might be needed, as even a few lights or refrigerator could cause an issue if you are the limit. If you have a dedicated circuit to a 40 amp load (water heater only), you are good. This is a tough unit and may be slightly underrated.
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· 14 years ago
What is the gas tank made of on generator model # 165601
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NorthstarExpert12· 3 years ago
This generator has a 6.5 gallon steel gas tank.
Helpful?
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SandySurvivor· 14 years ago
painted steel
Helpful?
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· 14 years ago
What type of lubrication system does the engine utilize?
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NorthstarExpert12· 3 years ago
The Honda GX270 engine on this NorthStar generator has a forced splash oil lubrication system.
Helpful?
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SandySurvivor· 14 years ago
splash lubrication, no filter or pump
100 hour oil change interval
engine holds 1.1 qts oil, which makes changes easy - just dump a quart in and you're done, the rest is whatever didn't drain out, no measuring
some others have a 0.9 qt capacity - what a pain to fill without overflowing - stupid
Helpful?
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· 15 years ago
Can you run a transfer switch on portable gens w/ Electric start?
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NorthstarExpert12· 3 years ago
This NorthStar generator can be used with a transfer switch. Please see item 62096.
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SandySurvivor· 14 years ago
yes, why not?
I'm doing it right now
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· 15 years ago
Does this product have idle control?
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Jimmyking24· 10 years ago
My 5500 does not have an idle control.
Helpful?
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NorthStarExperts· 15 years ago
No, this NorthStar generator does not have idle control.
Helpful?
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Anonymous· 15 years ago
What is rated voltage regulation?
i.e. +/- 1%, +/- 2%, etc.
I am trying to determine how "clean" the output power is.
Thank you.-
NorthStarExperts· 9 years ago
The THD is less than 5% on this item and it features a high quality 100% copper-wound head which makes it safe for use with sensitive equipment.
Helpful?
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SandySurvivor· 14 years ago
the voltage and frequency stay very close to 120 and 60, changes slightly with load
distortion is < 5% according to the test sheet that came with it
power is very clean - no device I have run on the generator has had any problem, including the furnace controller
Helpful?
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· 2 years ago
What amperage circuit breaker is used on the 240 Volt plug?
1 answer-
NorthstarExpert12· 2 years ago
This generator is equipped with a 120/240V 30 Amp locking receptacle (NEMA L14-30R).
Helpful?
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Accessories We Recommend
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Strongway Outdoor Extension Cord, 15 Amps, 12/3 Gauge, 50ft. Rust-Resistant Blades, Flexible to -40°F
Item # 5713536
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Warranty
Manufacturer's Warranty
4 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 # 165601
Shipping: Sold Out
Item # 48974
$4545.99Shipping:
Free shipping (lower 48 states) - Factory shippedHeavy/large item. Lift gate service available.
Store Pickup:
Out of stock at Fredericksburg VA
- $779.00Reg $849.00Save $70.00
Order today to get this price.
Shipping:
Free shipping (lower 48 states) - Factory shippedHeavy/large item. Lift gate service available.
Store Pickup:
Not available - online only
- $5999.00
Shipping:
Backordered: Order now to reserve yours -
Estimated to ship 07/09/26Heavy/large item. Lift gate service available.
Store Pickup:
Not available - online only
Specifications
5,500
5,500
8,125
10,000
4,500
5,000
6,500
9,000
Gasoline
Diesel
Gasoline
Gasoline
110/220
120/240
120/240
120/240
270 cc
435 cc
389 cc
688 cc
Honda
Yanmar
Generac
Honda
73 dB
-
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72 dB
Recoil
Electric
Recoil
Electric and Recoil
6.5 Gal
12 Gal
6.9 Gal
8.1 Gal
14.5 hr
-
5 hr
-
No
Yes
No
Yes
No
No
-
Yes
Yes
Yes
Yes
Yes
Yes
-
No
Yes
lb
lb
176.5000 lb
403.0000 lb
25.75 x 21.25 x 22.25 in
33.0 x 22.5 x 25.0 in
27.25 x 27.0 x in
56.0 x 26.75 x 35.12 in
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-
5
-
-
-
(4) 120v 20a 5-20r Gfci, (1) 120/240v 30a L14-30r
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