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Diesel Pressure Washers

Diesel Engine Pressure Washers for Oilfield, Fleet and Municipal Trucks

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.

A diesel pressure washer runs the pump on a diesel engine, and on seven of the ten machines here the burner runs on the same fuel, so a service truck carries one tank for both. That is the whole case for diesel: the fuel is already on the truck, the engine is built for thousands of hours at full load, and a diesel skid or trailer works through a shift that would leave a gas unit refueling. The range runs 3,000 to 4,000 PSI and 4 to 8 gallons per minute in five skids, two trailers and three portable units from Pressure-Pro and Cam Spray, sold new from the manufacturer through High Pressure Car Washer, an authorized dealer for both. Shipping is free to the lower 48 states, to a dock or terminal on freight machines, and liftgate service is one flat fee.

Seven of the ten are hot water machines, the units oilfield services, municipal fleets and heavy equipment yards buy for grease, road film and hydraulic oil. Three are cold water diesel units, a portable and two trailers, for contractors who want the engine without the burner. Every hot water diesel unit also appears in hot water pressure washers; gas engine hot water skids at a lower price are in gas pressure washers; the full professional range is in commercial pressure washers.

Speccing a truck? The guide under the products covers skid versus trailer, flow for fleets versus equipment, and 12 volt burner systems, and the comparison table lists all ten machines side by side.

Hot water unitsGas engine skidsCommercial rangeHose reelsPressure-ProCam Spray
Start here: the machine we would put on the truck for each job
Oilfield servicesPressure-Pro 8012PRO-40KLDG4,000 PSI at 8.0 GPM hot water, Kohler diesel, 12 volt start and burner, the rig wash skid.Municipal and fleet trucksPressure-Pro 6012PRO-40KLDG4,000 PSI at 5.5 GPM hot water on the same Kohler diesel, sized for a fleet truck.Contractors, cold waterPressure-Pro E4032KLDGE3,200 PSI at 4.0 GPM diesel engine portable, engine hours without the burner.Tow behindCam Spray 3000DXE3,000 PSI at 4 GPM on a trailer with its own tank and reel.
Compare the diesel pressure washers buyers ask about most
ModelPSIGPMPowerHeatFormBest for
Pressure-Pro E4032KLDGE3,2004DieselCold waterPortableContractors, cold water portable
Pressure-Pro 4012-15G3,2004DieselDiesel burnerPortablePortable hot water, diesel engine
Cam Spray 3040QD3,0004DieselDiesel burnerPortablePortable hot water, diesel engine
Cam Spray MCB3040D3,0004DieselDiesel burnerSkidSkid mount hot water, Cam Spray
Pressure-Pro 6012PRO-40KLDG4,0005.5DieselDiesel burnerSkidMunicipal and fleet trucks, 5.5 GPM hot
Pressure-Pro 8012PRO-35KLDG3,5008DieselDiesel burnerSkidOilfield and fleets, 8 GPM at 3,500 PSI
Pressure-Pro 8012PRO-40KLDG4,0008DieselDiesel burnerSkidOilfield and heavy equipment, 8 GPM hot
Cam Spray 3040TMD-HOT3,0004DieselDiesel burnerSkidTruck mount hot water skid
Cam Spray 3000DXE3,0004DieselCold waterTrailerTow behind, 3,000 PSI cold water
Cam Spray 4045DTE4,0004.5DieselCold waterTrailerTow behind, 4,000 PSI cold water
Filters

Why a diesel engine on a pressure washer

Torque at low speed, fuel economy under load, and hours: an industrial diesel like the Kohler KDW1003 on the Pressure-Pro skids is rated for a working life that a small gas engine cannot match, and it sips fuel while turning an 8 GPM pump. The cost is the engine price, which is why diesel makes sense on a machine that runs every day and lives on a truck, and not on a weekend unit.

Diesel hot water pressure washers

Seven of the ten machines here heat the water, all with diesel fired burners, so the engine and the burner drink from one tank. The Pressure-Pro Pro-Super Skid line puts 5.5 and 8 GPM of 250 degree water on a skid frame with 12 volt electric start and burner controls. Cam Spray builds the same idea as a portable, a skid and a trailer. Use the hot water units for fleets, heavy equipment, oilfield and anything greasy; the wider hot water range, gas and electric, is in hot water pressure washers.

Diesel engine cold water units

The Pressure-Pro Eagle Diesel portable and the Cam Spray diesel trailers run cold water from a diesel engine: the pick for a contractor or a municipality that wants the engine hours and the single fuel without the burner. They also carry hot water later with a hot box.

Skids and trailers

A skid bolts into a truck bed or onto a trailer you already own and stays there, which is the right answer for a service truck. A trailer unit arrives ready to tow with its own water tank, hose reel and frame, the answer when the machine needs to move between crews or sites without a dedicated truck. Portable diesel units on wheels suit a yard with a fixed water supply.

Flow for fleets and equipment

Flow does the work on trailers, tanks and equipment. A 4 GPM diesel unit handles pickups and light equipment; 5.5 GPM clears trucks; 8 GPM at 3,500 to 4,000 PSI is the oilfield and heavy equipment class that finishes a rig wash in a fraction of the time. Every unit above 5 GPM wants a tank and a feed pump, not a garden hose.

Diesel pressure washers we recommend by job

Four picks for the four ways these machines get used.

Pressure-Pro 8012PRO-40KLDG for oilfield services

The Pressure-Pro Pro-Super Skid 8012PRO-40KLDG is 4,000 PSI at 8.0 GPM of hot water on a Kohler diesel with 12 volt electric start, the rig wash machine.

Pressure-Pro 6012PRO-40KLDG for municipal and fleet trucks

The Pressure-Pro Pro-Super Skid 6012PRO-40KLDG runs 4,000 PSI at 5.5 GPM hot water on the same Kohler diesel, sized for a fleet garage truck.

Pressure-Pro E4032KLDGE for contractors who want cold water

The Pressure-Pro Eagle Diesel E4032KLDGE is a 3,200 PSI 4.0 GPM diesel engine portable unit, the engine hours and the single fuel without the burner.

Cam Spray 3000DXE for a tow behind unit

The Cam Spray 3000DXE trailer mounted pressure washer puts 3,000 PSI and 4 GPM on a trailer with its own tank and reel, ready to tow between sites.

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.

Diesel Pressure Washers questions, answered

Why buy a diesel pressure washer instead of gas?
One fuel on the truck, an engine rated for thousands of hours at full load, and better fuel economy under a big pump. Diesel costs more up front, so it pays on machines that run daily and live on a service truck.
Do diesel pressure washers heat water?
Seven of the ten here do, with a diesel fired burner that shares the engine's tank. The three cold water units can add a hot box later.
What is a 12 volt burner system?
The burner's fuel pump, ignition and controls run from the machine's 12 volt battery, the same one that starts the engine, so the unit needs no outside power anywhere. All the hot water units here use it.
Skid or trailer?
Skid if the machine lives in one truck bed or on a trailer you own. Trailer if it moves between crews or sites and needs its own tank and reel. Trailers cost more and tow behind any pickup.
What water supply does an 8 GPM machine need?
A tank and a feed pump, or a hydrant. A garden hose supplies about 4 GPM and starves an 8 GPM pump. Trailer units carry their own tank; skids draw from a truck tank.
Can these run on off road diesel?
Yes for the engine and the burner. Off road dyed diesel is fine on a machine that never drives on the road; check local rules for the truck's own tank.
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.
What if I order the wrong machine?
Returns are accepted within 30 days of delivery on unused units in original packaging. A 20 percent restocking fee applies and return freight is the buyer's responsibility. That is why Find My Machine and the phone line exist: tell us the job, the water and the power, and we confirm the model before it ships.