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Hydraulic Drive Pressure Washers

Hydraulic Driven Pressure Washers for Skid Steers, Trucks and Vac Units

Not sure which machine fits the job? Answer a few quick questions and see the machines that fit, right here.

Prefer a person? Give us a call at (219) 327-1138. We are available Monday through Friday from 9:00 AM to 6:00 PM EST and one of our representatives will help you with what you're looking for.

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A hydraulic drive pressure washer has no engine and no motor. A hydraulic motor turns the pump from the hydraulic system already on the machine it rides: a skid steer, a vac truck, a sewer truck, a service body, a boat. That means no fuel, no exhaust, no electrical circuit and one less engine to maintain, and it makes the pressure washer part of the vehicle instead of a thing carried on it. The three Cam Spray units here run 3,000, 4,000 and 5,000 PSI at 4 to 5.5 gallons per minute on a base mount frame, sold new from the manufacturer through High Pressure Car Washer, an authorized Cam Spray dealer. Shipping is free to the lower 48 states, to a dock or terminal on freight machines, and liftgate service is one flat fee.

They fit a narrow job and fit it well. If the machine needs its own power, the same pressure classes with a gas engine are in gas pressure washers, and skid and trailer units with their own engines are in commercial pressure washers. The other Cam Spray lines, wall mount, stationary and hot water, are in Cam Spray.

Have the hydraulic flow and pressure of your machine ready when you call or fill in the spec request; the guide below explains what the pump needs from the vehicle.

Cam SprayGas engine unitsCommercial rangeHose reels
Start here: the machine we would put on the truck for each job
Skid steersCam Spray 304HYD3,000 PSI at 4 GPM on a base mount frame, general cleanup from the machine.Service trucksCam Spray 404HYD4,000 PSI at 4 GPM for equipment and site cleaning from the service body.Vac trucks and industrial workCam Spray 5055HYD5,000 PSI at 5.5 GPM for tank washing and hydro excavation cleanup.
Compare the hydraulic drive pressure washers buyers ask about most
ModelPSIGPMPowerHeatFormBest for
Cam Spray 304HYD3,0004HydraulicCold waterStationarySkid steers, general cleanup
Cam Spray 404HYD4,0004HydraulicCold waterStationaryService trucks, equipment and sites
Cam Spray 5055HYD5,0005.5HydraulicCold waterStationaryVac trucks, industrial washing
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How a hydraulic drive pressure washer works

The vehicle's hydraulic system feeds a hydraulic motor on the pressure washer frame, and that motor turns a triplex plunger pump. Connect the pressure and return lines to an auxiliary circuit, feed the pump water, and it runs as long as the vehicle does. There is nothing else on the frame: no engine, no fuel tank, no starter, no electrical box.

What the vehicle has to supply

Each unit lists the hydraulic flow in gallons per minute and the pressure in PSI the motor needs, and the skid steer, truck or vac unit has to deliver at least that on an auxiliary circuit. Most skid steers and service bodies do; the product page and a phone call confirm it before the unit ships. Water supply is the same as any pressure washer: a tank or a tap that delivers the pump's GPM.

Skid steers, vac trucks and marine

Skid steer crews clean the machine and the site from the machine. Vac and sewer trucks carry the unit for hydro excavation cleanup and tank washing. Boats run a hydraulic unit off the deck system for deck and hull washing where a gas engine is unwelcome. Any vehicle with an auxiliary hydraulic circuit is a candidate.

Choosing between 3,000, 4,000 and 5,000 PSI

The 304HYD at 3,000 PSI and 4 GPM covers washing the machine and general cleanup. The 404HYD at 4,000 PSI handles caked mud, concrete and equipment. The 5055HYD at 5,000 PSI and 5.5 GPM is the industrial unit for stripping, tank interiors and hydro excavation cleanup, and it needs the most hydraulic flow.

Hydraulic drive units we recommend

Cam Spray 304HYD for skid steers

The Cam Spray 304HYD hydraulic powered pressure washer is 3,000 PSI at 4 GPM on a base mount frame, the general cleanup unit.

Cam Spray 404HYD for service trucks

The Cam Spray 404HYD puts 4,000 PSI and 4 GPM on a service body for equipment and site cleaning.

Cam Spray 5055HYD for vac trucks and industrial work

The Cam Spray 5055HYD is the 5,000 PSI 5.5 GPM industrial unit for tank washing and hydro excavation cleanup.

Freight, delivery and returns on machines

Free freight to the lower 48. Machines ship new from the manufacturer by freight carrier at no charge to a commercial address with a loading dock or forklift, or to the carrier's nearest terminal for pickup. Orders are prepared within 0 to 1 business days and delivery takes 5 to 8 business days.

Liftgate service, $95 flat. No dock or forklift? Choose liftgate service when you add the machine to the cart. The carrier calls ahead to schedule, brings the crate to your address and lowers it to the ground with a liftgate. It lands at the curb or driveway, not inside the building. One flat fee per order, whatever the machine weighs.

On delivery. Inspect the crate before signing. Note any damage on the delivery receipt and photograph it. We file the claim with the carrier, and if a replacement is needed we ship it.

Returns. Unused machines in original packaging can be returned within 30 days of delivery. A 20 percent restocking fee applies and return freight is the buyer's responsibility, and a refused freight delivery is handled the same way, which is why we would rather confirm the model before it ships: send the job, the water and the power on site through the form on this page and we check the spec against the machine. Full terms are on the shipping policy and return policy pages.

Not sure which machine fits the job? Answer a few quick questions and see the machines that fit, right here.

Prefer a person? Give us a call at (219) 327-1138. We are available Monday through Friday from 9:00 AM to 6:00 PM EST and one of our representatives will help you with what you're looking for.

Takes under a minute. No email needed to see results.

Hydraulic Drive Pressure Washers questions, answered

What is a hydraulic drive pressure washer?
A pressure washer with a hydraulic motor instead of an engine or electric motor. It runs from the hydraulic system of the skid steer, truck or vac unit it is mounted on, with no fuel and no electrical circuit of its own.
What hydraulic flow does it need?
Each unit lists the hydraulic GPM and PSI the motor needs, and the vehicle must deliver at least that on an auxiliary circuit. Have your machine's hydraulic specification ready and we confirm the match before it ships.
Can it run hot water?
These three are cold water units. A hot box mounted after the pump adds a diesel fired burner if the job needs heat.
Where does the water come from?
A tank on the vehicle or a tap that delivers the pump's flow, 4 to 5.5 GPM. The same rule as any pressure washer: the pump cannot move more than the supply delivers.
How does shipping work on a skid or trailer unit?
Shipping is free to the lower 48 states. Machines ship new from the manufacturer by freight carrier to a commercial address with a dock or forklift, or to the carrier's nearest terminal for pickup. No dock? Choose liftgate service when you add the machine to the cart, a flat $95 per order, and the carrier calls ahead and lowers the crate to the ground at your address. Orders are prepared within 0 to 1 business days and delivery takes 5 to 8 business days.
Are these machines sold by an authorized dealer?
Yes. High Pressure Car Washer is an authorized dealer for BE Power Equipment, Cam Spray, Kranzle, Makinex, Pressure-Pro and Simpson, and every unit ships new from the manufacturer with its factory warranty.