Pulsar Products GD400BN, 4000W Portable super-quiet Dual Fuel & Parallel Capability, RV-Ready, CARB Compliant
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Availability:
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Arrives
Wednesday, Sep 30
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Style: 4000 Watts + Dual Fuel + Lightweight + RV Ready
Features
- 4000 peak watts / 3200 running watts on gas
- 3600 peak watts / 2800 running watts on propane
- Continuous operation up to 4.5-hours at half load (1.1 Gallon Fuel Tank)
- Ultra lightweight at only 47.3 pounds, ideal for outdoor activity use
- Super quiet, making around 59db at half load
- High speed 5.5HP 145cc engine, good for emergency home backup power
- Safely power sensitive electronics such as televisions, cell phones, laptops, and more
Description
Pulsar Products GD400BN, 4000W Portable super-quiet Dual Fuel & Parallel Capability, CARB Compliant Inverter Generator, ultra-lightweight and RV Ready, 4000-Watt Gray
Brand: Pulsar
Wattage: 4000 watts
Fuel Type: propane
Power Source: gas-powered
Recommended Uses For Product: RV
Item Weight: 47.3 pounds
Voltage: 120 volts_of_alternating_current
Output Wattage: 4000
Special Feature: Dual Fuel
Included Components: Inverter generator
Wattage: 4000 watts
Fuel Type: propane
Power Source: gas-powered
Recommended Uses For Product: RV
Voltage: 120 volts_of_alternating_current
Output Wattage: 4000
Additional Features: Dual Fuel
Engine Type: 4 Stroke
Ignition System Type: recoil start
Tank Volume: 1.1 gallons
Engine Displacement: 145 cubic centimeters
Total Power Outlets: 2
Engine Power Maximum: 5.5 hp
Starting Wattage: 4000 watts
Running Wattage: 3200 watts
Frequency: 60 hertz
Runtime: 4 hours
Color: 4000w Dual Fuel Inverter Generator
Material Type: PVC
Brand Name: Pulsar
Included Components: Inverter generator
Model Name: GD400BN
Model Number: GD400BN
Number of Items: 1
UPC: 814726027803
Manufacturer: Pulsar
Item Type Name: Inverter Generator
Manufacturer Part Number: GD400BN
Warranty Description: 1 year manufacturer
Item Weight: 47.3 pounds
Item Dimensions L x W x H: 18.9"L x 11.4"W x 17.3"H
Frequently asked questions
If you place your order now, the estimated arrival date for this product is:
Wednesday, Sep 30
This item is non-returnable:
Non-returnable. Transportation of this item is subject to hazardous materials regulation
View our full returns policy here.
Non-returnable. Transportation of this item is subject to hazardous materials regulation
View our full returns policy here.
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Similar Products
Top Amazon Reviews
Style: 4000 Watts + Dual Fuel + Lightweight + R...
Full disclosure- i've only owned this 4000W Duel Fuel generator for 3 weeks, but I've already had some good use from it and I've been very impressed thus far! I bought this to power my truck camper, and specifically my A/C on the truck camper when it's very hot. I had been carrying a 2000W Firman gas-only generator prior, and while I can run the A/C on the camper from that, it is nearly maxxed out when I do so I don't think I could run it for long if necessary, and there is the issue of carrying gas. The storage compartment of my camper requires laying the generator almost on its side to get it in/out of the compartment, and I've had gasoline leak into the compartment prior when doing so. No Bueno!! So I bought this generator, which is virtually the same size and weight as my Firman (which otherwise I've been very impressed with as well, btw) but allows me to operate from the on-board propane tanks located in my truck camper. It's clean and convenient to do so, and this generator runs pretty quietly given it can put out 3,200W continuously and 4,000 surge watts if necessary! It also produces a clean sine wave signal, so I don't have to worry about frying my cellphone, laptops, etc while charging. It is a few decibels louder than a Honda 2000i or 2200i, but close to 2 x's the output for a few decibels more. And at lighter loads on eco mode it is still very quiet (which is where it will operate most of the time I'm using it; less than 50% load.) I bought it and broke it in and tucked it away in the camper to take to the Sierra for one last skiing weekend, and lo and behold, it saved my butt when my diesel fuel gelled and I had to run the Pulsar for 3 hours to power my truck's block heater to get it started! My Firman could have handled the 700-800W draw as well, but again, nice to pull it out, hook it to the propane extension and fire it up. On that note, with propane I do need to give it a pull or two on choke before it starts on propane, but it runs perfectly once I do so. I'm at the 5 hour mark so I'll change the oil again tomorrow which should be the last maintenance I need for awhile. I really can't believe I found a propane generator with twice the capacity as my Firman 2k/1,600W gas generator for $500 (caught a sale on Amazon.) If my experience changes over time I'll update, but so far I'm very satisfied with this Pulsar Dual Fuel generator!
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Reviewed in the United States on April 13, 2024 by Larry M.
Style: 4000 Watts + Dual Fuel + Lightweight + R...
I bought this to run off my travel trailer’s propane, so I would no longer have to travel with a gas can(s). I’ve been waiting for years for a small generator I could easily lift into my truck but that had power enough to run my a/c. This fit the bill. I watched every YouTube video to learn the tricks of starting it on propane. Yesterday evening I unboxed it and put it to the test. Failure. I gave up. This morning I took my 20# tanks to be tested. Full. I attached and reattached the propane hose. I bled a little propane at the generator connection. Fine. I switched my settings off and on. Tried again. Failure. I came in and watched a few more videos. Learned you can flood it, even with propane. One video on flooded engines recommended setting the choke half open. Another recommended one pull on choke, the next pull on run. Finally after about 87 failures, I set the dial half way between run and choke. Voila! Started on the first pull. Now I know the secret, at least for mine. It’s running quietly and easily restarts on run. I feel as if I now know the tricks for a clean start.
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Reviewed in the United States on August 14, 2026 by Mary E.
Style: 4000 Watts + Dual Fuel + Lightweight + R...
Very unhappy with my purchase of the Pulsar GD400BN dual fuel generator ! I purchased it from Amazon, upon receiving and going through all the set up the unit would NOT start !! Just contacting Pulsars Customer Service was frustrating and painful. The were useless and just told me they would try and find a generator shop somewhat close to me that would try and work on it. I live in Monterey, not Timbuck Too !! They never got back to me. I finally got through to Amazon Customer Service and they are giving me a full refund and I am at least happy with that. ''Pulsar'' seems to be a small importer that has these generic Chinese generators branded with the labels Pulsar ..... the so called operators manual was a mere leaflet. This is a ''Fly By Night Company'' and I would not recommend it . Just by a Honda that is tried and true and has established parts and service everywhere .... You get what you pay for !
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Reviewed in the United States on September 4, 2026 by Ronda Reed
Style: 4000 Watts + Dual Fuel + Lightweight + R...
Perfect small RV generator. Runs my camper on Propane without issue. Once I learned the propane starting procedure, it starts easily. Make sure you're not past the "Run" detent on the Off, Run, Choke selector. It's a little finicky.
Reviewed in the United States on August 13, 2026 by Charris Bradshaw
Style: 4000 Watts + Dual Fuel + Lightweight + R...
There is a trick to getting this to start reliably on propane after just a few pulls (minus one star for not including it in the instructions). Here's what worked: bleed the line of air (probably not that necessary) and put the mode selector about 1/4 to 1/3 of the way from the run position to the start position. Starts reliably on propane after just a few pulls every time now. And, yes, I tried *every* variation suggested online (including re-gapping the spark plug down) and this was the only one that worked. Also note: which propane hose *really matters*. I was using this unit at Burning Man (about 4,000 ft altitude) on propane only. I had purchased a 12' hose to give myself some flexibility in placement of the generator and the propane bottles. The generator started up and worked fine but if I turned on the trailer's A/C the generator would stop. When I got home I tested the A/C again with the manufacturer's provided propane hose and it worked fine. When I tried the 12' hose, though, I had the same problem -- the generator stopped. Could be the length of the hose was a factor or could be a difference in the regulator but if the generator will absorb a lot of load quickly then use the manufacturer's propane hose.
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Reviewed in the United States on August 23, 2026 by J Smith
Style: 4000 Watts + Dual Fuel + Lightweight + R...
*Update 1/17/24* Still working great, still running it only on propane. We have been having single digit temperature weather and I have been able to get the generator started relatively easy to run the block heater on my truck. Truck is parked far enough from an outlet that it's easier to turn on the generator to get power by the truck that way. When power went out it was also great to have the electronic safe power that this provided. Starlink internet kept the home entertained, the generator ran other electronics, and propane kept us heated. Overall, still very happy with the generator. Have not run the generator on gas, only have ran mine on propane. Generator ships with all you need to get started, except the fuel source. Oil funnel is also used to drain the oil. Makes it very mess free for oil changes. Which I recommend changing after the first hour, since there's all kind of glitter in the first oil change. I then ran it another couple hours and changed again. Much cleaner this time. Holds 15 ounces of oil so a standard quart of oil can do two oil changes. In total I changed the oil three times during the break in before switching in full synthetic oil. It runs very quiet and stays pretty quiet under load. Quieter than a smaller 700 watt inverter generator I have and while not as fuel efficient it is still very economical with how much propane it uses. Revs up to produce power and has run my 10,000 btu window ac without issue. Ran a 5,000 btu and small .7 cubic foot microwave at the same time off of it. I love the size of this unit for the amount of power it produces. You can parallel two of them if you need more power. Really the only downsides I have would be no electric start, and the outlet selection is sparse. Got mine with coupon off of Amazon and have no regrets so far. Will update if anything negative happens
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Reviewed in the United States on August 27, 2023 by Gregory Robinson
Style: 4000 Watts + Dual Fuel + Lightweight + R...
Purchased this for the propane capabilites and not bother with changing the carburetor fuel jet in high altitude. Generator is capable of handling on 13.5 btu A/C with a soft start installed and a 12v refrigerator with gasoline. Lost a few watts on propane, but it handles the mentioned A/C with no issues. Generator is durable if maintenance is done. Worked perfect as described. PROS: Great value. Not heavy even with full tank of gasoline. Turns on easy with gasoline. Recommend premium 93 octane and stabilizer for less issues. COMES WITH oil, spark plug removal tool and other maintenance stuff. CONS: A little difficult to start cold with propane. Slight discoloration spots to removable covers due to contact with internal heat (cosmetic issue). No hourly meter to help with maintenance. Air filter was dry, you have to lightly oil it. Big hands can't fit through spark plug door access. I don't like the screw in type propane hose inlet to the generator. A quick connect type design would make set up efficient. No gasoline fuel meter, have to guess or purchase an extended fuel tank. No ampere or Watt meter. Overall, I recommend this generator. My cons were more of a design improvement.
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Reviewed in the United States on March 14, 2025 by HDA
Style: 4000 Watts + Dual Fuel + Lightweight + R...
Excellent generator, easy to use and very impressed on how well it performs!
Reviewed in the United States on September 2, 2026 by Texas scoutman