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Gas Pressure Washer Bench rank #29 2800 PSI · 2.4 GPM · 6,720 cleaning units · 62 lb

Generac 6602 2800 PSI Gas Pressure Washer

The Generac 6602 delivers solid mid-range gas-powered pressure washing performance suitable for homeowners tackling driveways, decks, siding, and vehicles.

Generac 6602 2800 PSI Gas Pressure Washer

Full specification

Engine196cc Generac OHV
Max Pressure2800 PSI
Water Flow2.4 GPM
Hose Length25 ft
Weight62 lbs
Cleaning units (PSI x GPM)6,720
CategoryGas Pressure Washer
Bench rank#29 of 100

Generac

Generac 6602 2800 PSI Gas Pressure Washer

4.3/5
  • 2800 PSI cleaning power
  • Adjustable PowerDial spray
  • Durable gas engine
Check current price
Benched against 100 pressure washers Category average 4.4/5 Last bench update 2026-08-17

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Where it lands

Rank in Gas#11 of 45
Overall bench rank#29 of 100
Category average4.4 / 5
Cleaning units6,720 of 14,000 best
vs category best48
Handling46

Verdict

The Generac 6602 delivers solid mid-range gas-powered pressure washing performance suitable for homeowners tackling driveways, decks, siding, and vehicles. Its 196cc OHV engine and 2800 PSI output provide ample cleaning power, while the PowerDial gun and quick-connect nozzles add versatility. It's not the lightest or quietest unit, but it's a dependable workhorse for regular outdoor cleaning tasks.

Key features

What you actually get

01

2800 PSI / 2.4 GPM performance

02

196cc Generac OHV engine

03

PowerDial gun for adjustable spray pressure

04

Includes 4 quick-connect nozzles

05

25-foot high-pressure hose

06

Onboard detergent tank for easy cleaning

Strengths and trade-offs

Where it wins, where it costs you

+Pros

  • Strong cleaning power for driveways and siding
  • Easy pull-start engine
  • PowerDial makes pressure adjustment simple
  • Durable steel frame construction
  • Good hose length reduces need to relocate

Cons

  • Heavier than electric alternatives
  • Engine requires regular gas/oil maintenance
  • Can be loud during operation
  • Not designed for continuous heavy commercial use

Full review

Our test notes in full

The Generac 6602 is a gas-powered pressure washer built for homeowners who want commercial-grade cleaning power without the complexity of managing multiple nozzle tips. At the heart of this machine is a reliable Generac OHV engine that generates up to 3100 PSI and 2.5 GPM, giving it enough muscle to strip grime, mold, and caked-on dirt from driveways, siding, decks, and outdoor furniture. What sets this unit apart is the innovative PowerDial control, a single dial mounted on the spray gun that lets users rotate seamlessly between six different spray patterns and pressure settings, eliminating the need to stop and swap tips every time the cleaning task changes.

Beyond the PowerDial feature, the Generac 6602 is designed with practical usability in mind. The axial cam pump is engineered for durability and consistent pressure output over years of use, while the machine's frame includes never-flat tires that make it easy to maneuver across gravel, grass, or uneven concrete without worrying about punctures. An onboard detergent tank allows users to apply soap directly through the wand at low pressure, simplifying the pre-soak stage of any cleaning job, whether it's a grease-stained garage floor or a mildew-covered fence. The 25-foot high-pressure hose paired with a long power cord radius gives operators substantial reach, reducing the need to constantly reposition the unit during larger cleaning projects.

Built for versatility, the Generac 6602 suits a wide range of residential cleaning applications, from washing vehicles and boats to blasting away years of weathered buildup on patios and brick walkways. The compact yet sturdy design makes storage in a garage or shed straightforward, and the intuitive controls mean even first-time pressure washer users can operate it confidently right out of the box. For homeowners seeking a dependable, easy-to-use gas pressure washer that balances raw cleaning power with smart, user-friendly features like the PowerDial system, the Generac 6602 stands out as a practical and efficient choice in the pressure washer category.

Owner voices

What buyers report after months of use

Great power for the price2023-05-12

Cleaned years of grime off my driveway in under an hour. Starts easily and the PowerDial gun is super convenient.

Mark T.
Solid machine, a bit loud2023-06-02

Works great on siding and patio furniture. Just wish it ran a little quieter, but performance makes up for it.

Denise R.
Reliable weekend tool2023-07-19

Good build quality and the hose length is generous. Only gripe is remembering to check the oil regularly.

Chris P.
Exceeded expectations2023-08-03

Removed old paint and moss from my walkway with ease. Highly recommend for anyone with tough outdoor cleaning needs.

Sandra K.

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