Description
Transport high-volume mobile wash power to remote municipal parks, highway signs, and equipment depots without water hookups. The Simpson 4200 PSI 4.0 PGM gas cold water pressure washer trailer carries self-contained washing capability behind commercial pickup trucks. This DOT-approved mobile rig washes mowers, tractors, and concrete infrastructure. It cannot produce heated water for thermal grease removal.
A heavy structural tubular steel trailer frame carries a 150-gallon high-density polyethylene water tank, linked directly to a Honda GX390 13HP gas engine and CAT commercial triplex plunger pump. The trailer features a 2000-pound torsion axle, DOT-approved LED lighting, and fifteen-inch highway radial tires. A heavy-duty hose reel holds 100 feet of steel-braided pressure hose, with five quick-connect spray tips stored in rubber grommets.
Mobile Pressure Washer Trailer Specs
Commercial landscape contractors and municipal road departments require towable pressure washers to clean property infrastructure without local water lines. This trailer rig delivers continuous washing anywhere.
- Honda GX390 13HP gas engine provides dependable commercial power for mobile washing
- CAT industrial triplex plunger pump generates 4200 PSI at 4.0 GPM for deep cleaning
- 150-gallon polyethylene water storage tank permits remote washing without garden hose supply
- DOT-approved road trailer features a 2000-pound torsion axle and highway radial tires
- 100-foot steel-wire braided hose stores on a heavy-duty manual rewind hose reel
- Five quick-connect spray nozzles adjust spray fans for delicate or heavy stripping jobs
- Integrated bypass loop routes water back into the supply tank during trigger idle intervals
Pump Flow Bench Pressure Telemetry
Dynamometer flow testing records steady 4200 PSI discharge pressure at 4.0 GPM fluid throughput at 3500 engine RPM. The Honda GX390 consumes 0.88 GPH fuel under full washing load, while the 150-gallon tank provides 37 minutes of continuous trigger spray time. Pump crankcase oil temperature stabilizes at 138 degrees Fahrenheit after two continuous hours. Acoustic output measures 88 dBA at twenty feet distance.
Mobile Rig Towing Safety Limits
Check trailer tire pressure, hitch the 2-inch ball coupler securely, attach safety chains, connect water supply or run from tank, and start the engine. Disengage high-pressure triggers before adjusting spray nozzles. Do not tow this trailer without filling or draining the tank within safe towing balance limits.
- Trailer wheel bearing hubs require marine grease lubrication every six months
- Pump crankcase oil demands replacement with synthetic pump lubricant every hundred hours
- Engine crankcase oil requires checking and topping off before every daily wash route
Commercial Washer Warranty Trailer Manifest
Simpson protects this 95003 pressure washer trailer with a 3-Year engine warranty and 5-Year limited pump warranty. The shipment package includes the DOT-approved trailer rig, 150-gallon tank, 100-foot hose, spray gun, lance, five spray tips, and operator manuals.
