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Best Gas Pressure Washer: 3 Picks for Farm and Acreage Cleanup

Three gas pressure washers from 3800 to 4400 PSI for farm equipment, decks and concrete: PSI, GPM, pump, hose and certifications compared, plus who should skip each.

AcreMowerLab Editorial
By AcreMowerLab Editorial · 3 min read
Best Gas Pressure Washer: 3 Picks for Farm and Acreage Cleanup
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Top picks at a glance

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  1. 1Simpson PS60843Best OverallSimpson PS608439.6/10View on Amazon
  2. 2PowerSmart DL1038ABest CertifiedPowerSmart DL1038A9.6/10View on Amazon
  3. 3Homdox 4200 PSIBest 4.0 GPM AlternativeHomdox 4200 PSI9.5/10View on Amazon
  4. 4Westinghouse Foam Cannon for Pressure WashersWestinghouse Foam Cannon for Pressure WashersView on Amazon
  5. 5Sun Joe Pressure WasherSun Joe Pressure WasherView on Amazon
  6. 6Pressure WasherPressure WasherView on Amazon
  7. 7Greenworks 1600 PSIGreenworks 1600 PSIView on Amazon
  8. 8CRAFTSMAN Electric Pressure WasherCRAFTSMAN Electric Pressure WasherView on Amazon
  9. 9McKillans Foam Cannon for Pressure WasherMcKillans Foam Cannon for Pressure WasherView on Amazon
  10. 10Greenworks 2000 PSIGreenworks 2000 PSIView on Amazon

On acreage a pressure washer earns its keep on mud-caked mowers, trailers, tractors, decks and concrete pads. These three gas models run 3,800 to 4,400 PSI at 2.5 to 4.0 GPM. We give the engine, pump, hose, certifications and warranty from each listing and mark what it does not state. We left out one Simpson model whose listing contradicts itself on pressure and engine.

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Quick picks

  • Best Overall Simpson PS60843: 4400 PSI at 4.0 GPM with a triplex pump and a 50 ft hose Check price on Amazon
  • Best Certified PowerSmart DL1038A: UL 1776, PWMA and EPA engine certification stated, 3800 PSI Check price on Amazon
  • Best 4.0 GPM Alternative Homdox 4200 PSI: 4200 PSI at 4.0 GPM with a 25 ft hose and foam bottle Check price on Amazon

Our acreage picks

#ProductAcre ScoreBuy
1PowerSmart DL1038A 3800 PSI 2.5 GPM Gas Pressure WasherPowerSmart DL1038A 3800 PSI 2.5 GPM Gas Pressure Washer9.6/10Buy on Amazon
2Simpson PowerShot PS60843 4400 PSI 4.0 GPM Gas Pressure WasherSimpson PowerShot PS60843 4400 PSI 4.0 GPM Gas Pressure Washer9.6/10Buy on Amazon
3Homdox 4200 PSI 4.0 GPM Gas Pressure WasherHomdox 4200 PSI 4.0 GPM Gas Pressure Washer9.5/10Buy on Amazon
PowerSmart DL1038A 3800 PSI 2.5 GPM Gas Pressure Washer

PowerSmart DL1038A 3800 PSI 2.5 GPM Gas Pressure Washer

PowerSmart9.6/10 Acre Score
i
The Acre Score (out of 100, shown as /10) weighs rated performance, build, value, safety listing and warranty. How we score

3800 PSI gas washer with a 212cc engine, UL 1776, PWMA and EPA certifications stated, and 10 inch tires.

Check price on Amazon

Who it's for: owners who want stated certifications and a lighter machine.

Who should skip it: anyone who wants a warranty on the listing or more flow.

Read the full review

The DL1038A has a 212cc 4-stroke OHV engine and a AAA axial cam pump for 3800 PSI at 2.5 GPM. The listing says it is PWMA performance certified, compliant with UL 1776 and EPA engine certified, and includes an onboard soap tank, five quick-connect nozzles, a metal spray wand and 10 in pneumatic tires. Weight is 61 lb. It does not state a warranty term, and the hose length differs between the listing text and the specs table.

Pros

  • Only listing here that states UL 1776, PWMA and EPA certifications
  • 3800 PSI at 2.5 GPM
  • Onboard soap tank and five quick-connect nozzles
  • 61 lb is the lightest of the three

Cons

  • No warranty term is stated on the listing
  • Hose length is 35 ft in the text but 35 inches in the specs table
  • Lower flow than the Simpson
  • Axial cam pump, not triplex
Simpson PowerShot PS60843 4400 PSI 4.0 GPM Gas Pressure Washer

Simpson PowerShot PS60843 4400 PSI 4.0 GPM Gas Pressure Washer

SIMPSON9.6/10 Acre Score
i
The Acre Score (out of 100, shown as /10) weighs rated performance, build, value, safety listing and warranty. How we score

Professional-style gas washer with a 420cc CRX engine, a triplex pump, a 50 foot hose and 13 inch tires.

Check price on Amazon

Who it's for: owners with a lot of equipment to rinse who want the highest flow.

Who should skip it: anyone who wants a light unit, or lives in California.

Read the full review

The PS60843 pairs a CRX 420cc engine with an AAA industrial triplex plunger pump, delivering 4400 PSI at 4.0 GPM with thermal relief to prevent overheating. The listing includes a 50 ft hose, five quick-connect nozzles, a 31 in steel wand and 13 in pneumatic tires on a welded steel frame. It is 49-state compliant and not shipped to California. The listing does not state a warranty term.

Pros

  • Highest pressure and flow here, 4400 PSI at 4.0 GPM
  • AAA triplex plunger pump with thermal relief
  • 50 ft kink-resistant hose
  • 13 in pneumatic tires and a welded steel frame

Cons

  • No warranty term is stated on the listing
  • Not sold to California
  • Heavy: 61.23 kg in the specs table
  • No UL, ETL or CSA listing is stated
Homdox 4200 PSI 4.0 GPM Gas Pressure Washer

Homdox 4200 PSI 4.0 GPM Gas Pressure Washer

Homdox9.5/10 Acre Score
i
The Acre Score (out of 100, shown as /10) weighs rated performance, build, value, safety listing and warranty. How we score

4200 PSI gas washer with a 209cc engine, 4.0 GPM, a 25 foot hose, five nozzles and a foam bottle.

Check price on Amazon

Who it's for: owners who want 4.0 GPM from a smaller 209cc engine.

Who should skip it: anyone who wants a stated pump, warranty or certification.

Read the full review

The Homdox listing gives a 209cc 4-stroke engine rated 7.0 gross HP, 4200 PSI at 4.0 GPM, a 25 ft hose, large rubber wheels, a set of quick-connect nozzles (0, 15, 25, 40 degrees and soap) and a foam bottle. It names agricultural machinery among its uses. It does not state a warranty term, pump type, weight or certifications.

Pros

  • 4200 PSI at 4.0 GPM, matching the Simpson on flow
  • Listing names agricultural machinery as a use
  • Foam bottle and a quick-connect nozzle set
  • Automatic detergent mixing described on the listing

Cons

  • No warranty term is stated on the listing
  • Pump type and weight are not stated
  • No UL, ETL or CSA listing is stated
  • Hose is 25 ft, half the Simpson's reach

Other machines to compare

Side-by-side specs

Model Acre Score Type PSI GPM Engine Hose Warranty
Simpson PowerShot PS60843 9.6/10 Gas, triplex pump 4400 4.0 CRX 420cc 50 ft Not stated
PowerSmart DL1038A 9.6/10 Gas, axial cam pump 3800 2.5 212cc OHV 35 ft (text) Not stated
Homdox 4200 PSI 9.5/10 Gas 4200 4.0 7.0 HP gross, 209cc 25 ft Not stated

Specifications are manufacturer rated as listed, collected 6 October 2026.

Acreage and terrain fit

Simpson PS60843

Acreage fitUnder 11-22-55-1010+
Terrain fitFlatRough ground

PowerSmart DL1038A

Acreage fitUnder 11-22-55-1010+
Terrain fitFlatRough ground

Homdox 4200 PSI

Acreage fitUnder 11-22-55-1010+
Terrain fitFlatRough ground

Buying guide: choosing a gas pressure washer for acreage

PSI and GPM together

PSI is force and GPM is flow, and multiplying them gives a rough cleaning-power figure called cleaning units. By the listing numbers, the PowerSmart is 3800 x 2.5 = 9,500, the Homdox 4200 x 4.0 = 16,800 and the Simpson PS60843 4400 x 4.0 = 17,600. More flow rinses mud faster on big equipment.

Axial cam vs triplex pump

The PowerSmart listing gives an axial cam pump and the Homdox listing does not state a pump type. The Simpson listing gives an AAA industrial triplex plunger pump with thermal relief. Triplex pumps are generally built for heavier duty, but the listings do not state pump life for any of the three.

Engine and fuel

The PowerSmart uses a 212cc 4-stroke OHV engine, the Homdox a 209cc 4-stroke engine rated 7.0 gross HP, and the Simpson a CRX 420cc engine. The PowerSmart listing says its engine is EPA certified. The Simpson listings state they are 49-state compliant and are not shipped to California.

Hose length and reach

Stated hose lengths are 25 ft (Homdox), 35 ft in the listing text (PowerSmart, though the specs table says 35 inches) and 50 ft (Simpson). On a farm, a longer hose saves moving the machine.

Wheels and weight

The PowerSmart rolls on 10 in pneumatic tires at 61 lb, and the Homdox listing gives large rubber wheels and no weight. The Simpson has 13 in pneumatic tires, and its specs table gives 61.23 kg (about 135 lb), so plan on a ramp or a second person to load it.

Safety listings

Only the PowerSmart listing states certifications: PWMA performance certified, UL 1776 and an EPA engine certification. A pressure washer can cut skin and a high-pressure jet should never point at people or animals. Read the manual before the first use. See our Safety Disclaimer.

Pressure washer safety

Never point the spray at people, animals or yourself: the stream can cut skin. Run gas pressure washers outdoors only, far from doors, windows and vents, because engine exhaust carries carbon monoxide. Start with the widest nozzle and keep electric units on a GFCI outlet. Refuel only with the engine off and cool. See CPSC carbon monoxide guidance. Read our Safety Disclaimer.

The Acre Score explained

The Acre Score weighs five factors: performance (PSI, GPM and engine), build quality (pump, frame, wheels, hose), value (specs for the money), safety (UL, ETL or CSA listing, thermal relief and other stated protections) and warranty (years and coverage). A factor the listing does not state scores zero.

Product Acre Score Perf. /35 Build /25 Value /25 Safety /10 Warranty /5
Simpson PS60843 9.6 34 22 18 3 0
PowerSmart DL1038A 9.6 30 20 20 7 0
Homdox 4200 PSI 9.5 33 19 20 0 0

Scores run from 9.2 to 9.8: each product’s point total is placed on that range, so more points always means a higher score.

FAQ: mowing large lots

What PSI do I need for farm equipment?

All three picks here are 3,800 PSI or more, which is plenty for mud on equipment. The extra flow of a 4.0 GPM model rinses faster. Higher pressure can damage paint, decals and soft wood, so start with a wide nozzle and keep a distance.

Is GPM or PSI more important?

Both matter. PSI loosens dirt and GPM carries it away. For large surfaces and equipment, flow often decides how fast the job goes.

Can a gas pressure washer run on any gasoline?

Follow the owner’s manual for fuel and oil.

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