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

Gasoline • Belt Drive • 4000 PSI • 4.0 GPM

Part Number: HS-4004-1MAH
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-4004-1MAH is a powerful gasoline-powered hot water pressure washer designed for professional mobile cleaning applications. Delivering 4000 PSI and 4.0 GPM, this skid-mounted unit provides exceptional cleaning force for removing grease, oil, mud, compacted dirt, and industrial grime. Ideal for contractors, fleet service teams, equipment yards, and agricultural operations.

Driven by a reliable 688cc Honda GX630 OHV engine, paired with an AR industrial pump, diesel-fired burner, and integrated 2900-watt generator, this model delivers up to a 150°F temperature rise and 200°F maximum outlet temperature. Built on a heavy-duty powder-coated steel frame, the HS-4004-1MAH is engineered for trailer and truck-bed mounting—providing durable, high-output mobile cleaning performance.

Key Features

Pump System

• External bypass system prevents overheating

• Factory-preset unloader

• Equipped with trapping unloader

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

• Forged brass manifold

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

• Industrial AR Pump (7-Year Warranty)

Engine

• 688cc Honda GX630 OHV gasoline engine

• Electric start with sealed battery included

• 10.0-gallon engine fuel tank

• CARB-compliant engine required in California

Frame & Construction

• Heavy-duty powder-coated steel frame

• Skid-mount design ideal for mobile installations

• Built for long-term durability in harsh environments

Heating System

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

• (Not approved for bio-fuel)

• 2900-watt generator powers burner & safety controls

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

• Produces 150°F temperature rise, 200°F max 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 – Honda GX630 Engine

• 7-Year – AR Pump