Model # RD8000

Internet #100671886

RIDGID 8,000-Watt Gasoline Powered Generator with Subaru Engine-DISCONTINUED

Discontinued RIDGID

8,000-Watt Gasoline Powered Generator with Subaru Engine-DISCONTINUED

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Frequently Bought Together

Product Overview

The Ridgid 8,000-Watt Gasoline Powered Generator with Subaru Engine is easy to transport on its Zero Gravity frame. Its 404 cc engine delivers 14-HP for up to 11 hours at 50-Percentaeg load. It features an electric starting mechanism, 25 ft. cord and load indicator. There are four 120-Volt receptacles rated for up to 20-Amps, plus an additional 120/240-Volt receptacle rated for up to 30-Amps.

  • 10,000-watt surge and 8,000-watt running power provide reliable power
  • 8-gal. fuel capacity delivers 11 hours of running time at 50-percentage load
  • 404 cc Subaru gasoline engine delivers 14-HP
  • (4) 120-volt outlets rated at 20-amps
  • 1-120/240-volt outlet rated at 30-amps
  • Operating volume of 79.7 dB
  • Zerogravity roll cage frame design makes transport easy
  • Electric starting mechanism
  • Click on the “More Info” tab to download the specifications pdf to view the wattage requirement guide

Info & Guides

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$899.00 /each
$899.99 /each
$899.99 /each
$1,099.00 /each
Name 8,000-Watt Gasoline Powered Generator with Subaru Engine-DISCONTINUED GP9500EB, 7,500 Continuous Watt Gasoline Powered Portable Generator 10,000-Watt Gasoline Powered Electric Start Portable Generator with Wheel Kit - CARB Approved OSHA Compliant Pro-Series 8,500-Watt 420cc 15 MHP Gasoline Powered Electric Start Portable Generator
Brand RIDGID Smarter Tools Duromax LIFAN
Ratings (81) (181) (7) (15)
Engine Make OEM Branded OEM Branded OEM Branded
Generator Features Automatic Voltage Regulation,GFCI Outlet(s),Low Oil Shutdown Automatic Voltage Regulation,Fuel Gauge,Low Oil Shutdown,Wheel Kit Automatic Voltage Regulation,Fuel Gauge,Low Oil Shutdown,Wheel Kit Auto Idle Control,Automatic Voltage Regulation,Electric Start,GFCI Outlet(s),Low Oil Shutdown,Overload Protection,Wheel Kit
Continuous Wattage 8000 7500 8000 8000
CA (CARB) Compliant CARB Compliant CARB Compliant Not CARB Compliant
Fuel type Gasoline Gasoline Gasoline Gasoline
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Product Depth (in.)
Product Height (in.)
Product Length (in.)
Product Width (in.)


Built-in inverter
Continuous Wattage
Engine Displacement (cc)
Engine manufacturer
Fuel Tank Capacity (gallons)
Fuel type
Full load fuel consumption (gallons/hour)
Generator Features
Automatic Voltage Regulation,GFCI Outlet(s),Low Oil Shutdown
Horsepower (hp)
14 hp
Number of circuits/outlets
Operational volume (dB)
Osha Required GFCI Outlets
Peak Wattage
Product Weight (lb.)
Run time at 50% load (hours/tank)
Voltage (volts)
Wheel Kit Included

Warranty / Certifications

Certifications and Listings
No Certifications or Listings
Manufacturer Warranty
3 Year Warranty

More Products With These Features


Customer Questions & Answers

Who makes the gerator?

Asked by: Vpool
Thank you for asking, Vpool. This generator is manufactured by Techtronic Industries Power Equipment. We are located in Anderson, South Carolina. I hopoe this helps and we appreciate your interest in Ridgid! -Keri
Answered by: RIDGID
Date published: 2017-07-18

does the 8000w generator come with a battery charger?

Asked by: Anonymous
No, it doesn't come with a separate battery charger. You could periodically hook up the battery to your own maintainer-type charger if needed. The recoil starter insures you can get up and running even if battery was low. My experience has been that the unit starts quickly and easily either way, and the battery will charge back up as the engine runs.
Answered by: Anonymous
Date published: 2015-11-07


Asked by: Anonymous
According to the included manual: Change Engine Lubricant: After 1st month or 20 hours of operation; Every 6 months or 100 hours of operation There is an "Oil Drain Bolt" that needs to be unscrewed to drain the oil.
Answered by: HI2PNW
Date published: 2015-09-17

Small amount of oil in air filter

I have a Ridgid 8000 watt generator (10k starting). There is a small amount of oil sitting in the air filter when I went to clean it. I cannot recall if this is a normal or a particularly bad thing.
Asked by: Anonymous
Hopefully this may answer your question; according to the RIDGID Owner's Manual it states in part: # Apply a light coat of engine lubricant to the element, then squeeze it out.
Answered by: HI2PNW
Date published: 2015-09-17
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Customer Reviews

8,000-Watt Gasoline Powered Generator with Subaru Engine-DISCONTINUED is rated 4.1 out of 5 by 81.
Rated 5 out of 5 by from Better than Expected Performance Just used it for 5 1/2 days non stop. (bought it less a month ago!) Did its Job Better than Expected. As others have mentioned - it is bit loud, but out-performs many other GenSets in the price range. PROS 1) Zero Gravity Handle works very well. 2) @ 50% load you can get 11+ hrs on a tank of gas. 3) Starts & runs like a champ 4) Excellent Suburu engine. 5) Nieghbors think it looks cool (no one complained about the noise) 6) Powered a 4,300 SQFT House no problem (did not use Electric Dryer and Stove at the same time) Cons (little to no impact in an emergency situation) 1) No Gas Gauge 2) A bit loud (But many others GenSets are too) 3) No Remote Choke Buy it - You WILL Like it!
Date published: 2011-11-05
Rated 5 out of 5 by from Definitely a good buy When my RIDGID 8000 watt generator arrived, I followed the quick set-up directions, pulled the cord through three times slowly to get fuel in the lines, hit the electric starter (battery came fully charged) and she started immediately. I do not think it is too loud. It is definitely well constructed and OH SO easy to move around. I called Subaru and it was suggested that I use "Ethanol Shield" in the gas. It is available at Home Depot. Question...has anyone actually used this generator during a storm when it had to sit outside in the rain?
Date published: 2012-06-24
Rated 5 out of 5 by from Great Generator, Fair Price, A Little Noisy I did extensive research on line before deciding to by the 8000. The selling points were a real voltage regulator, adequate power, and electric start. The Subaru engine helped too. This web site and the Ridgid web site don't have quite enough info so I called Ridgid for more. Among other things they told me that the generator has a Total Harmonic Distortion (THD) of 5%. THD is a measure of the "quality" of the power put out. Many/most generators won't mention their THD. I've called some, and even their tech support doesn't have this information. However, take it from me that 5% is very, very good for a portable generator. Some generators brands that pride themselves on good quality power have a THD of 7%. I'm making a big deal about this because it is important to have good quality power for electronics. Bad power quality can fry electronics or shorten their life span significantly. The web sites also don't mention the sound level put out by the generator. Again, by calling them I found out that the level is 76 (?) db at 70 feet. This is a little high. Some of the higher priced ($2500+) generators of this wattage measure that at about 21 feet. This is noticeable. The generator is a little noisy. Hondas for instance are noticeably quieter. However, if you want something quieter with good quality power be prepared to spend the 2 or 3K. The electric start works very, very well. I started the generator several times, in weather that was 11 to 18 degrees. It started every time in less than 2 seconds. The generator appears solid and well though out. The gas fill is near the edge of the top. This makes filling it much easier. The gas take holds 8 gallons. This should be enough to last 10+ hours at a reasonable load. I have a whole house transfer switch on my house. The generator basically supplies every circuit in the entire house (BTW, don't buy a 6 or 8 circuit transfer switch). With typical electrical load I got 118 volts throughout the house. With every light in the house it stayed there. With the 220 dryer on high I got about 116. The only time the generator sounded like it was working hard was when I turned the oven on. Even then the voltage stayed just fine (slightly over what the utility power gives me). BTW, the generator comes with a 20 amp cord. However, don't be fooled. This is NOT a cord for connecting to a transfer switch. You need a 30 amp cord for that. This generator has (to me) a useless feature that allows you to detach the control panel and put it in a remote location using the supplied cord. This might be useful on a construction job site, but ...
Date published: 2009-12-11
Rated 3 out of 5 by from OK but could be better I recently purchased this generator to replace one that was stolen. I did not want to pay out the money for a Honda again & only get 2000w. So I decided that I would like something with a little more punch behind it for a backup power supply for the house as well as small to large job's. Thing's I like. It is very easy to move around. The zero gravity is no joke. It is very easy to start, even with the pull start this is not bad. No worries if you get caught with a dead battery. I have not removed the panel yet but this was one of the deciding feature's that helped me with my decision. This is also a safety feature. Helps keep you away from the generator for small job's that you don't want to drag out a extension cord. The fold up handle is great. Rigid is very innovative when making tool's for the guy that doesn't have a huge garage or shop to store their tool's in. I own most of rigid's portable tool's & this is one of the reason's that I see what rigid has to offer over other makes. Quality is second to none. The generator over all doesn't look nor feel like a cheap generator. Fuel gauge is a nice touch. The control panel that count's the hr's & load at any given time is nice. I have not seen this feature in a machine of this size. Typically only larger commercial & industrial model's come with these option's. Help's you keep up on the engine maintenance for those who consider thing's like that to be important. Dislikes Adding motor oil is a joke. Location is very poor. Need's an extension tube & dip stick. No auto engine idle option. It start's up & goes right to a pretty good rev. I don't like starting motor's that are cold without letting them idle a little to allow the engine temp to warm up before getting crazy. This will affect the life of any motor. In addition without the auto engine idle feature the generator is not as efficient as it could be. So when your running this generator you probably want to have a few thing's to power up because you will be paying for power that your not using. I miss my Honda that had this feature. Only one key came with the machine. (come on $1299.00) Fuel seems to leak out of the fill cap when tank is full & you tip back to move around.(I need to check for missing gasket) Generator is pretty noisy. But it's not a small generator either. Overall. This is for the guy that need's a generator for all small to heavy duty application's. This really is a nice generator that in my humble opinion only need's a couple of thing's done to it to make it virtually perfect. For the most part I am extremely happy with the purchase & would buy it over again. I hope this help's those of you who are pondering on purchasing this generator. Rigid is a trusted brand.
Date published: 2009-12-15
Rated 5 out of 5 by from highly recommended the generator was used on a job site for the first 30 hrs. Brought it home right before Sandy hit, i am 1 hour north of nyc so our area was hit pretty hard. we were without power for 6 days, but the Rigid made it feel like nothing happened. i Changed oil to synthetic before the storm at the 30 hr mark and it performed flawlessly. i ran it over 100 hrs and was very happy with its performance. the lcd also tells you when service is due.i changed the oil again and spark plug at 100 hrs. it is well built, gives out clean power as i run through the panel with an interlock kit. It was practically like power never went out. i find it to be top quality, i am impressed with the subaru engine. the design makes it easy to move and it is not as loud as most gens it size. in my opinion it is high quality and excellent value for a generator of its size.
Date published: 2012-11-14
Rated 4 out of 5 by from Good Design but NO Oil Filter Bought this in July 2011 to replace an older and smaller generator. Set up was a breeze. Unit started up easily. Easy to move around. Why was no oil filter designed into the unit. The owners manual recommends oil change after 20 hrs the first time, then every 100 hours. That is only 4 days of continued use. Probably a higher frequency due to no oil filter. Rigid/Subaru should have included an oil filter. If you own this unit, be sure to change oil as recommended. Also let it cool down with no load before shutting down.
Date published: 2011-07-27
Rated 5 out of 5 by from Exceptional power for the price Ridgid advertises its generators by listing its running watts first which means you get a solid 8000 watts with the surge capacity of 10000 watts which is the opposite of what most manufacturers do. The unit was ordered on line and delivered 6 days later by New England Motor Freight without a scratch.Easy to assemble. One person can easily do it if you have a couple pieces of wood to prop each end up while you install the wheels and legs.I'd use my own oil rather than the no name brand that it came with which also had no API ratings on the bottle. Pour in a whole quart before starting. pull the manual starter several times to fill the carb with fuel, then hit the choke and turn the key. Suburu engine fired immediately and only needs the choke for maybe 5 seconds.The model I got had a build date of almost a year ago and I'm glad because they've recently added a fuel vapor containment system on the newer ones and some owners have reported fuel starvation problems as the tank isn't vented and after several minutes or run time, opening the fuel cap results in a big wooosh created by the vacuum.This is also a problem on the 6800 watt model with Yamaha motor.However, this unit appears to be a beast, power-wise, somewhat noisy, but not terrible.I installed a Reliance 3140CRK transfer switch, which by the way DOES handle this 8000 watt unit, even though it says 7500 max in its on line specs. Its one of the FAQ's on Reliance's website and its box even says 8000.Running furnace motor, 2 refigerators, tons of lights and a washer, microwave, and everything I could turn on , the thing was putting out about 5000, so there's plenty in reserve to start other appliances, etc..At first I thought the digital display on the generator was defective because I plugged in a 500 watt work light and it read no output, but it turns out the light was such a small percentage of its output that it wasn't sensing the load, the threshold seems to be a little over 500-600 watts. the meter also displays hours of operation in whole hours, not tenths, so you need to run one full hour for it to advance.Newer models appear to have a new display which you can scroll through more info like % of output.The design and build quality, I think, is first rate.The "Zero -Gravity" handle is awesome and it rolls easily.Make sure and use the locking pin on left side of handle when moving the unit.This type of generator can not utilize an Eco-Throttle as they must run at full RPM to produce their power, so it does run flat out all the time but still has great run time with the 8 gal tank.It produced smooth steady current same as the power company . You could easily run your whole house, and hook up a couple neighbors to help them out.I haven't seen a unit of this output at anywhere near this price. I had to order on line due to shortages in the stores after a power outage and it cost $55 shipping surcharge, but if its in stock at the store or HD online runs one of its free shipping deals with no weight limitations , you'll save some cash.I'm done running extension cords from my small portable generator which has been retired to camping duty.Extended power outages are becoming more frequent, and now I can have the house up and running like normal in less than 5 minutes, for less than $2k total investment. Plus, still have the portability, if needed, for a worksite that you wouldn't have with a whole house automatic system.The only thing I did was add a length of fuel hose to the carb float bowl nipple so I can drain the carb for cleaning or storage without making a mess.
Date published: 2012-07-31
Rated 4 out of 5 by from Awesome Generator! Just like so many others, I lost power during the Halloween Weekend blizzard of 2011. Unfortunately, my 18 year old generator's carb quit on me. The repair guy said it was a minimum of $250 to get it running again. Luckily my brother let me borrow his for a few hours each day, so we were in pretty good shape. But, I decided I wasn't going to go through this again. Being the techie, research hound that I am, I started researching every generator in the world in earnest. I kept going back and forth between a whole house propane system (i.e. I don't have propane or natural gas currently) to another portable. I actually had decided to go with a smaller portable (i.e. 5000-6000 watts) but there were none to be had, other than "quiet" Honda's, which I was not willing to pay for, or B&S "Storm Responders", which didn't have many good reviews. I finally decided to "bite the bullet" and purchase this fine, 8000 watt, Subaru powered (owned Subarus for years and loved them) generator. I couldn't be happier. The thing went together in a snap, it's built like a tank, and it started within 3 seconds using the electic start with it's partially charged battery. It is a bit loud, but not as loud as I expected. I suppose if I wanted to spend another few thousand, I could have gotten the Honda, but I just couldn't justify that kind of money for the difference in volume. I haven't had a chance to do a "real world" test, but I did plug in two 1500 watt heaters. I turned on the first and the engine didn't even stutter. I turned on the second and it stuttered ever so slightly. But, the Subaru engine runs like a dream. Everything about this gen reeks of quality. The Zero Gravity Handle turns it into a hand truck. Very easy to move it over the lawn. My original plan was to backfeed through the dryer outlet. But, after reading many negative posts online from utility workers, as well as the fact that it could nullify your house insurance in the event of a fire, I decided to go with a transfer switch. Of course, they are on back order till at least the middle of December. In the meantime, I will use extension cords if needed. I also decided that I want to keep it quiet and make it more "permanent", so I am going to build a sound deadening, weatherproof enclosure. That way I can keep it sitting right next to house and won't have to move it. I will make sure to drain the carb and tank whenever it's not in use and will always use Stabil in the gas. That should ensure another 18 years of service like I had with my last one (a cheap Homelite). Bottom line, buy it. It seems to be built very well, and I have seen mostly great reviews on it. Plus, with this amount of power, I expect I will be able to run my electic water heater in addition to my fridge, chest freezer, pellet stove, microwave, coffeer maker, tv's, computers, and house lights. Of course I will take care not to use high wattage things together.
Date published: 2011-11-18
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