The Simpson Aluminum 60735 is a professional-grade cold-water gas pressure washer built to clean hard and last. Pairing a commercial Honda GX200 engine with an industrial CAT triplex plunger pump, it puts out 3,400 PSI at 2.5 GPM, so contractors, fleet washers, and building-maintenance crews can blast away oil, mildew, paint overspray, and ground-in grime that a homeowner-grade unit just smears around.
It is aimed squarely at people who clean for a living: power-washing contractors, property and facility managers, fleet and equipment shops, and rental operators who need a washer that starts every morning and runs all day.
What it cleans best
- Concrete driveways, sidewalks, loading docks, and parking areas.
- Fleet trucks, trailers, and heavy equipment caked with road film and grease.
- Building exteriors, siding, fencing, and decks during restoration and prep.
- Industrial wash-down, graffiti removal, and surface prep before coating.
Why pros choose this Simpson
The combination of a Honda GX200 commercial engine with low-oil shutdown and a CAT industrial triplex plunger pump is the gold standard for daily-use pressure washers, because both are rebuildable and parts are easy to source. The aircraft-grade brushed aluminum frame resists corrosion and keeps the unit light enough to load and roll on its two 10-inch pneumatic tires. It is a machine designed to be repaired and kept in service, not thrown away.
Specifications
- Pressure: 3,400 PSI
- Flow: 2.5 GPM
- Engine: Honda GX200, 196cc commercial, with low-oil shutdown
- Pump: CAT industrial triplex plunger pump (direct drive)
- Frame: aircraft-grade brushed aluminum with two 10-inch pneumatic wheels
- Hose: 5/16-inch by 25 feet
- Wand: 16-inch steel with quick-connect
- Nozzles: 0, 15, 25, 40 degree and soap quick-connect tips
- Model: ALH3228-S; includes detergent siphon tube and engine oil
Frequently asked questions
How powerful is the Simpson 60735?
It delivers 3,400 PSI at 2.5 GPM, enough cleaning power for caked-on grime, oil stains, and large flat surfaces while still being practical for one operator to move and run.
What pump and engine does it use?
A commercial Honda GX200 196cc engine with low-oil shutdown drives a CAT industrial triplex plunger pump, the combination most pros trust for long service life under daily use.
What surfaces is it best for?
Concrete driveways and sidewalks, parking areas, equipment and fleet vehicles, decks, fencing, siding, and general commercial and industrial wash-down work.
What nozzles and accessories are included?
It ships with a 16-inch steel wand, gun, a 5/16-inch by 25-foot hose, five quick-connect nozzle tips (0, 15, 25, 40 degree and soap), a detergent siphon tube, and a pint of engine oil.
Is it built for professional use?
Yes. The aircraft-grade aluminum frame, CAT triplex pump, and Honda commercial engine are chosen for contractors and facility crews who run a washer hard, not occasional homeowner use.
Discount Cleaning Products is an authorized Simpson dealer, and this pressure washer ships with the full manufacturer warranty backed by US-based customer service. If you are deciding between models for your workload, our team can help you match pressure and flow to the job before you order.
