The SIMPSON 95005 is a DOT-certified mobile pressure-washing trailer that puts 4,000 PSI of hot-water output behind a Honda GX390 gas engine and a COMET triplex pump. It is built for contract cleaners, mobile detailers, restaurant-pad route operators, municipalities, and resort properties that need a one-trailer solution. A 200-gallon water tank, a 100-foot Armor high-pressure hose on its own reel, and a 75-foot low-pressure 3/4-inch reel mean the operator pulls into the lot, drops the tongue jack, and starts cleaning.
Use cases
Commercial mobile wash routes
Mobile washers running fleets, dumpster pads, gas-station forecourts, and restaurant grease pads pick this trailer because hot water handles the contamination chemistry and 4,000 PSI handles the volume.
Restaurant exhaust and kitchen pad cleaning
Hot water at 4,000 PSI cuts through grease films on rooftop exhaust hoods, grease-trap pads, and back-of-house concrete that would defeat a cold-water unit.
Fleet operators and municipalities
Cities, counties, and large fleets use the 200-gallon tank to operate offline from any building water source for the run, then refill at a central yard between jobs.
Resorts, marinas, and HOA exteriors
Crews working resort common areas, marina docks, and HOA exteriors use the DOT trailer to dispatch one machine across multiple sites without breaking the unit down between jobs.
Contract cleaners and bid operators
Bid contractors specifying hot-water mobile capacity in proposals can drop this trailer onto the bid without sourcing components separately.
Specifications
- Pressure / flow: 4,000 PSI hot-water output
- Engine: Honda GX390 electric start with Oil Alert
- Pump: COMET triplex
- Water tank: 200 gallons with steel straps and drain petcock
- HP hose: 100-foot 3/8-inch Armor hose on high-pressure reel
- LP hose: 75-foot 3/4-inch on low-pressure reel
- Trailer: 2,000 lb single-axle, DOT certified, 2-inch ball coupling, removable tongue jack
- Battery: 12 volt
- Cannot ship to: California (Honda GX390 / CARB)
Frequently asked questions
Is the trailer street-legal and can it be towed by a half-ton truck?
Yes. The trailer is DOT certified as an over-the-road pressure-washing system. The 2,000 lb single-axle build with 2-inch ball coupling falls within the towing capacity of any modern half-ton pickup once the 200-gallon tank is full (water alone is roughly 1,670 lbs at full fill); plan accordingly when fill levels are part of the route.
Why specify hot water on a 4,000 PSI machine?
Hot water shortens contact time on grease, oil, food residue, and biological grime. A 4,000 PSI cold-water rinse will move a contaminant; hot water dissolves it. Mobile wash operators that touch restaurant exhaust, fleet trucks, drive-throughs, and equipment yards will not specify a cold-water trailer on those routes.
Will this ship to California?
No. This SIMPSON variant is built around the Honda GX390, which is not CARB compliant for California sale. Kohler and Vanguard mobile units in the same SIMPSON catalog are the California-compatible alternatives. The dealer team can pull the part number on the equivalent CA-legal SKU.
How much hose is included off the reel?
The system ships with a 100-foot 3/8-inch high-pressure Armor hose on a high-pressure reel and a separate 3/4-inch by 75-foot low-pressure hose on its own reel. That is enough reach for most parking-lot, drive-through, and lot-corner work without an extension.
Does the unit come with a burner and what fuel does it run on?
Yes. The trailer carries an integrated diesel-fired burner that brings water to working temperature on demand. The high-pressure pump runs on the Honda gasoline engine; the burner runs on diesel. Plan for two fuel sources at the truck.
Discount Cleaning Products is an authorized SIMPSON dealer. US-based customer service can confirm trailer freight, source the CARB-legal Kohler and Vanguard equivalents for California buyers, and route warranty support through SIMPSON. The Honda GX390 carries Oil Alert and the SIMPSON warranty package on the unit as configured.
