Model # 5993

Internet # 204223451

3100-PSI 2.8-GPM OHV Engine Triplex Pump Gas Powered Pressure Washer

This item has been discontinued.
The Home Depot no longer carries this specific product.



Model # 5993

Internet # 204223451

Durable, easy to use and built to last, Generac’s rugged commercial power washers feature professional grade triplex pumps and durable, welded, roll cage style frames that protect both the engine and pump. Get cleaning power, reliability and above all ease of use in an affordable, compact power washer. This model is perfect for cleaning around the house, at work, or on the farm. Powerful Generac engine and triplex pump and are perfectly balanced over the axle for almost effortless maneuverability.

  • Powerful Generac OHVhorizontal-shaft engine features low oil shutdown
  • Professional grade triplex pump with ceramic-coated pistons mean long life
  • Pressure control valve provides complete control of water pressure for all applications
  • Durable welded roll cage style frame protects the engine and pump front and back grab bars make it easier to lift
  • Folding handle for easy storage and transport
  • Professional grade spray gun with adjustable side handle provides precise control
  • Cushion grip and easy to pull trigger reduce fatigue and improve comfort
  • Steel reinforced hose will not leave scuff marks on surfaces
  • Quick change connectors make hose connections a snap
  • Quick click nozzle tips five included for tackling any job
  • Home Depot Protection Plan:

    Home Depot Protection Plan

Info & Guides

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Assembled Depth (in.) 
31.75 in 
Assembled Height (in.) 
38 in 
Assembled Width (in.) 
24.25 in 
Hose Diameter (In.) 
.375 in 
Hose length (in.) 
Wheel Diameter (in.) 
10 in 
CA (CARB) Compliant 
Not CARB Compliant 
Detergent tank 
Engine Displacement (cc) 
Engine Make 
Engine Make 
OEM Branded 
Engine Type 
Foldable handle 
Fuel tank capacity (gallons) 
Hose Material 
Maximum Pressure (PSI) 
Number of tips included 
Onboard storage 
Pressure Washer Power Type 
Product Weight (lb.) 
102.5 lb 
Pump Brand 
Annovi Reverberi 
Pump Brand 
Anno Reverberi (AR) 
Pump Type 
Pump Type 
Start Type 
Translucent fuel tank 
Water capability 
Warranty / Certifications
Manufacturer Warranty 
2 Years Limited 


Price: $500 - $600
Brand: Generac
Maximum Pressure (PSI): 2000 - 3200
Review Rating: 4 & Up
Engine Make: OEM Branded
Pressure Washer Power Type: Gas
GPM: 2.5 - 3


Rated 4.3 out of 5 by 29 reviewers.
Rated 4.0 out of 5.0 by It finally works, but it wasn't easy Based on Amazon and TheHomeDepot reviews of various washer makes, Generac seemed like a good bet. In both cases these must be bought on-line. Amazon buyers seemed to have issues getting warranty service and were having bad shipping experiences which I didn't think I'd have purchasing thru TheHomeDepot (THD). However this hasn't been a perfect experience. The THD dock helpers loaded the box in the back of my SUV but put it in on its side. By the time I got home (4mi) a lot of oil leaked out all over the machine and box. It was a mess. I also found that the box didn't have a pressure hose. A Generac partner sent the hose for free but that took another 3 weeks. After THD's 30 day return window had passed I was able to start up the machine. I ran the machine about 5hrs cleaning patio concrete and was having constant problems with the washer suddenly shutting off. It wouldn't run more than 10min w/o abruptly shutting down. I called Generac support and was told to take it to a service center, in my case a 70mi / 3hr round-trip from PDX OR. The service guy said he'd seen several of these new machines this year (2014) for the same issue. Problem is the engine can't drive the pump head at full pressure, and the fix is to back off the pressure a turn or less from full. It was obvious to the ear how the engine smoothed out when doing so. Funny that Generac telephone support didn't suggest this. A couple important things to note: You want to purchase and use pump-saver (goes into water inlet) to prolong the pump lifetime, special oils for the pump and engine (Briggs & Straton make all these; pump and engine oils are NOT the same) and use fuel stabilizer in the gas if it stays in the machine >30 days. Engine oil should be changed in first few hours of use, and then every 40 hrs max (50 is too long) or every season, whichever comes first; pump oil every season. Using the machine was a breeze. The wand is easy to hold and use. Fold-down handle allows it to fit in the SUV w/o drama. Hose is a good length. Good tip assortment. 3000 PSI and flow rate made cleaning speed faster than the cheaper machines while not as tiring as the 4000 PSI rental units. August 8, 2014
Rated 3.0 out of 5.0 by Great washer, but ... Great washer. Easy to assemble, start, and operate. I had no problem restarting after releasing the pressure in the pump. Powerful; works really well. Only con is that its rather bulky/heavy compared to other washers with similar specs. I'd still recommend it, though. Two reasons for the 3-star review, and both have to do with my specific unit. First, mine shipped without a high-pressure hose. Generac customer service agreed to send me a replacement, but it's back-ordered. I ordered the unit in mid-june, but won't get the hose until mid-august. I had to buy a replacement hose to test the unit, and I'll return it after receiving the stock unit. Second, the quick-connect adapter (spring-loaded, female part) at the end of my wand has a ding/burr that prevents it from catching unless/until you manually force it down. I lost two tips before I figured this out -- one landed on my roof and the other landed somewhere in the yard (will probably hit it next time I mow ...). Good unit apart from these two annoyances. July 14, 2014
Rated 1.0 out of 5.0 by If only it had started Can't recommend this product because I never got it started. Went together OK, but when it was time to start it up, it was a no go. Could not even get a spark from it. Maybe if it started it would have gotten better ratings. July 22, 2014
Rated 5.0 out of 5.0 by worked well right out of the box Pressure washer came quickly and was well packed. Assembly was easy. I've had no problems with it so far. July 22, 2014
Rated 1.0 out of 5.0 by missing pressure hose This item was delivered without the pressure hose which I have not received any replacement up to now. This item is a useless piece of merchandize without the pressure hose .I have contacted Generac and have sent three e mail to which they only responded to one asking for the data of the pressure washer. I contacted home depot and they said they will send a replacement pressure hose. Meantime the washer is just in my garage gathering dust. August 26, 2014
Rated 1.0 out of 5.0 by Pressure washer never started. No tech support from Generac. Machine refunded. Item DOA. Unpacked item. Followed instructions for cold start. (I have used p/washers before and are experienced). Check oil, pump oil, gas etc. After 2 hours of no start called Generac tech support and communicated with a non tech person who was reading from the owners manual. Requested higher level of real tech support and was instructed to either take machine to service center or take back for refund. Was also told by non tech person from Generac that the no-start problem was not uncommon ???. I called the service center that I was given by Generac tech support for my area. The service center told me they don't repair/service Generac equipment because of too many problems. I phoned tech support back and requested another authorized service center in my area. Was told to bring the machine in and that they do not know how long it will be there. Service manager told me they are not really interested in repairing Generac equipment. Took the pressure washer back for refund. HomeDepot customer service was excellent and did the usual no squabble refund. I have now bought a BE 196cc Honda GX200 |Model: B2565HG) pressure washer and confirmed that I can get local support in Vancouver BC. August 4, 2014
Rated 4.0 out of 5.0 by Generac 3100-PSI 2.8-GPM OHV Engine Triplex Pump Gas Powered Pressure Washer Generac support is worthless. Buy from a dealer - that's who I had to call for a simple operational issue. Engine - it's OK but not a Honda! July 15, 2014
Rated 3.0 out of 5.0 by Great power! But a pain to start after warm. I bought this unit after the 3000PSI residential unit I had ordered through Lowes came in damaged. Since I had waited two weeks to do my sidewalk and driveway cleaning I could not wait any longer and paid a little more for this machine.This was the only unit that Lowes had in stock. The machine was very easy to setup and started right away. Have ran it for about 7 hours. The problem is that once it warms up it is very hard to start it. For one thing you have to keep releasing the pressure in the wand or it won't turn. Even after doing that you have to go through between 5-10 pulls to start it again. I will take mine to a local repair shop to see if there is something wrong with it. If it wasn't for that I would be very happy with it. July 10, 2012
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