Mi-T-M HS Series Hot Water Pressure Washer – HS-4004-1MAK, Gasoline, Belt Drive, 4000 PSI, 4.0 GPM

Gasoline • Belt Drive • 4000 PSI • 4.0 GPM

Part Number: HS-4004-1MAK
Category: Mobile Hot Water Pressure Washer (Skid Mount)
Fuel Type: Gasoline (Engine) + Diesel/Kerosene (Burner)
Drive Type: Heavy-Duty Belt Drive

The Mi-T-M HS Series HS-4004-1MAK is a professional-grade gasoline-powered hot water pressure washer engineered for tough mobile cleaning applications. Delivering 4000 PSI and 4.0 GPM, this skid-mounted system provides the power needed to cut through thick grease, industrial grime, heavy mud, and oil buildup—perfect for construction contractors, fleet operators, agricultural work, and equipment service operations.

Powered by a 674cc Kohler CH640 OHV gasoline engine, an industrial AR pump, and a diesel-fired burner system, the HS Series achieves a 150°F temperature rise and delivers up to 200°F maximum outlet temperature. The unit includes an integrated 2900-watt generator and is built on a rugged powder-coated steel frame designed for mounting onto trailers or truck beds.

Key Features

Pump System

• External bypass system prevents heat buildup

• Factory-preset unloader

• Equipped with trapping unloader

  • (All other gasoline models use a K7 flow-actuated unloader)

• Forged brass manifold

• High-volume 80-mesh stainless-steel inlet water strainer

• Industrial AR pump (7-Year Warranty)

Engine

• 674cc Kohler CH640 OHV gasoline engine

• Electric start with sealed battery included

• 10.0-gallon engine fuel tank

• CARB-compliant engine required for California orders

Frame & Construction

• Heavy-duty powder-coated steel frame

• Skid-style design for trailer or truck-bed installation

• Built for rugged outdoor field environments

Heating System

• Burner compatible with No. 1 or No. 2 diesel / kerosene

• (Not approved for bio-fuel)

• Integrated 2900-watt generator

• 1/2-inch Schedule 80 stainless-wrapped heating coil

• Produces 150°F rise and up to 200°F outlet temperature

Included Accessories

• Quick-connect spray nozzles: 0°, 15°, 25°, 40°

• 50 ft × 3/8 in steel wire-braided hose

• Adjustable-pressure insulated dual-lance wand

• Industrial trigger gun

Specifications

Performance

Weights & Dimensions

Warranty

• 3-Year – Heating Coil

• 3-Year – Rehlko/Kohler Engine

• 7-Year – AR Pump