Simpson 4400 PSI Gas Pressure Washer, 4.0 GPM Commercial Power Washer, Cold Water, 50' Hose, PowerShot, 49-State Compliant…
Best for
Best 4000 PSI / commercial
Amazon rating
Amazon aggregate, one input among many in the Verdict Score
Based on 1 trusted source
Current price
$899.00
Updated Jun 27, 2026 · 1 min read
Sources behind this verdict
10 reviewers weighted by source trust
The consensus
What reviewers found
Synthesized across the trust-weighted source mix below.
The Simpson PS60843 PowerShot is the commercial-throughput pick reviewers reach for when GPM matters. At 4,400 PSI / 4.0 GPM with a 50-foot hose and CRX420 engine, r/pressurewashing owners report it runs a 24-inch surface cleaner "no problem" and did "an amazing job with a driveway cleaning." Home Depot verified-purchase reviewers echo powerful performance and reliable first-pull starts, and one community member reports over 150 hours of use without a single issue. The high-trust r/Tools thread adds useful context that a 4.0 GPM pump extracts more useful work from the engine than a 3.5 GPM unit.
What reviewers liked
- 4.0 GPM reliably runs a 24-inch surface cleaner per r/pressurewashing owners
- Verified-purchase reviewers report reliable first-pull starts and strong performance
- One community owner logged 150+ hours without issue
Where it falls short
- Mixed pump-longevity reports, including oil consumption and isolated leaks
- r/pressurewashing skepticism toward Simpson's pump durability
- Overkill PSI/GPM for typical homeowner cleaning
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The Simpson PS60843 PowerShot is the commercial-throughput pick reviewers reach for when GPM matters. At 4,400 PSI / 4.0 GPM with a 50-foot hose and CRX420 engine, r/pressurewashing owners report it runs a 24-inch surface cleaner "no problem" and did "an amazing job with a driveway cleaning." Home Depot verified-purchase reviewers echo powerful performance and reliable first-pull starts, and one community member reports over 150 hours of use without a single issue. The high-trust r/Tools thread adds useful context that a 4.0 GPM pump extracts more useful work from the engine than a 3.5 GPM unit.
The disagreement is real and worth weighing. The same r/pressurewashing threads include owners reporting oil consumption issues and a "bad buy" experience after a year, plus broader skepticism about AAA-style pump durability across Simpson's lineup. Lowe's reviewers note isolated pump leaks. The pattern that emerges is that this machine rewards diligent maintenance and punishes neglect.
No independent lab measurement appears for this model in the signals, so the score reflects a strong but maintenance-dependent owner consensus.
- Professional Performance
- Easy-to-assemble and easy-to-start with its CRX 420cc premium engine, the PowerShot power washer is great for contractors who specialize in deck cleaning, wood restoration, paint preparation, and all other professional services
- Power and Durability
- A powerful, reliable, maintenance-free AAA industrial triplex plunger pump delivers 4400 PSI at 4.0 GPM and includes thermal relief to prevent overheating; PowerBoost Technology delivering higher pressure at the nozzle
- Sturdy and Portable
- The welded steel frame construction with powder coated finish offers durability and corrosion resistance; 13-inch premium pneumatic tires deliver ease of maneuverability across various terrain and uneven ground
- Includes Quality Simpson Accessories
- Monster 3/8-inch x 50-foot high-pressure hose is kink and abrasion resistant hose with quick connect fittings and polyurethane outer jacket; 5 Quick connect nozzle tips: 0°, 15°, 25°, 40° and Soap; Ergonomic spray gun 31-inch steel wand/lance
- Important Notes
- 49-State Compliant; Does not ship to California; Keep max fuel level 1/2 Inch below bottom of filler neck to avoid spillage; All pressure washers are 100% functionally tested in factory & may contain minimum residual fuel/oil or fuel odor
it's still running strong. Be diligent with changing the pump and engine oil and it can last you awhile. a year now, bad buy. Strong as hell, ...
Simpson has a AAA pump which is not the best from what I've heard. it's great, I put over 150 hours on mine and didn't have a single issue. for ...
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“Simpson PS 60843 4400 PSI, 4 GPM | Would I buy it again?” · YouTube
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