- Commercial-grade power washer with 4,000 PSI and 4.0 gallon per minute (GPM)
- Powerful Generac 420cc OHV engine with low oil shutdown and integrated unloader valve for easy engine startup
- Professional-grade spray gun with an adjustable side handle
- Professional-grade triplex pumps with ceramic-coated pistons are designed for long life
- Non-CARB Compliant/Not For Sale In California
Long known for its portable generator design, Generac introduces its lineup of commercial-grade pressure washers, enabling you to power wash your deck, prep for painting, remove tough concrete stains, and more at home and on the job site. The Generac 5997 provides 4,000 PSI of power and 4.0 gallons per minute (GPM) for a cleaning power rating of 16000. The Generac 5997 power washer. It's powered by a Generac overhead valve (OHV) horizontal-shaft engine, the largest available for its respective pressure rating. Generac OHV engines come standard with low-oil shutdown to protect and prolong the life of the engine. Both the engine and pump are perfectly balanced over the axle and wheels for almost effortless maneuverability, regardless of terrain. Generac pro models also offer durable, welded roll-cage style frames that protect both the engine and pump from damage. It comes with an ergonomically designed professional-grade spray gun, which features a unique cushion grip that reduces fatigue by minimizing vibration. The innovative easy-to-pull spray trigger can be held with a minimum of effort, and the Quick-Click nozzle tips are easy to replace. Additionally, this pressure washer's gun comes with an adjustable side handle for additional comfort and control when cleaning up high, down low, or anywhere in between. This power washer is backed by a three-year limited warranty. Note for California residents: This model is not CARB-compliant. Units sold to California must be CARB-compliant. What Is PSI and GPM? Short for "pounds per square inch," PSI is a measure of the water pressure coming out of the power washer. A typical garden hose dispenses water at about 30-40 PSI, and a coin-operated car wash provides about 700 PSI. A power washer, by contrast, typically dispenses water at several thousand PSI. Another important factor in power washers is GPM, which stands for "gallons per minute" and describes how much water is flowing through the pressure washer. Together, they provide your power washer's cleaning power. Multiply PSI (which gives you the power to lift dirt and grime) by GPM (which provides the necessary quantity of water to wash it away) to get the cleaning power rating. The higher the number, the greater the cleaning power. Here are some application examples with how much cleaning power (PSI and GPM) you'll need to get the job done.
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Compare the Generac Power Washers Model # 5993 5995 5997 6020 6022 Compliance 49 State 49 State 49 State 49 State 49 State Type Commercial Commercial Commercial Residential Residential PSI 3,000 3,300 4,000 2,500 2,700 GPM 2.8 3.2 4.0 2.3 2.3 Cleaning power rating 8400 10560 16000 5750 6210 Engine 212cc 302cc 420cc 196cc 196cc Spray gun Professional grade Professional grade Professional grade Ergonomic Ergonomic Hose 3/8-inch x 35-foot steel reinforced, non-marring rubber 3/8-inch x 35-foot steel reinforced, non-marring rubber 3/8-inch x 50-foot steel reinforced, non-marring rubber 1/4-inch x 25-foot PVC/plastic 1/4-inch x 25-foot PVC/plastic Quick-Click Nozzle Tips (5) 0°, 15°, 25°, 40°, soap (5) 0°, 15°, 25°, 40°, soap (5) 0°, 15°, 25°, 40°, soap (3) 0°, 25°, soap (4) 0°, 25°, 40°, soap Wheels 10-inch Never Flat 10-inch Never Flat 12-inch pneumatic Plastic 10-inch solid Dimensions (LxWxH, inches) 25 x 26 x 30 28 x 28 x 33 28 x 28 x 33 17 x 27 x 21 17 x 27 x 21 Weight 113 pounds 145 pounds 165 pounds 82 pounds 83 pounds