Mi-T-M HSP Series Hot Water Pressure Washer – HSP-3504-3MGM, Gasoline, Direct Drive, 3500 PSI, 4.0 GPM

Gasoline • Direct Drive • 3500 PSI • 4.0 GPM

Part Number: HSP-3504-3MGM
Category: Gasoline Hot Water Pressure Washer (Direct Drive)

The Mi-T-M HSP-3504-3MGM is a rugged, industrial-grade hot water pressure washer engineered for demanding commercial cleaning. Built with a heavy-duty 420cc Mi-T-M OHV engine and a 7-year AR pump, this unit delivers powerful hot-water cleaning for fleets, shops, equipment yards, farms, and industrial facilities.

Featuring a Top-Fired Heat Exchanger, Electro Magnetic Firing (EMF) ignition, and an external bypass system, the HSP Series ensures efficient heating, long-term durability, and consistent performance in tough environments.

Key Features

Pump System

• External bypass system prevents pump heat buildup

• Preset stainless-steel & brass unloader valve

• Forged brass manifold

• Thermal relief valve

• Low-pressure detergent injector

• AR Pump (7-Year Warranty)

Engine

• 420cc Mi-T-M OHV gasoline engine

• Designed for industrial duty

• Not for sale in California (CARB restrictions)

Frame & Mobility

• Reinforced powder-coated steel frame

• Center-balanced lift for easy loading

• 13-inch flat-free tires for smooth maneuverability

Burner & Heating System

• Top-fired powder-coated heat exchanger

• No. 1 or No. 2 diesel or kerosene burner

• Not approved for bio-fuel

• Temperature Rise: 150°F

• Max Temperature: 200°F

• Burner Fuel Tank: 5.5 gallons

• Burner Fuel Consumption: 2.14 gph

• BTU Output: 294,000 BTU/hr

• EMF ignition for reliable burner performance

Included Accessories

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

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

• Professional dual-lance insulated wand

• Heavy-duty trigger gun

Specifications

Performance

Weights & Dimensions

Warranty

• 3-Year – Coil

• 3-Year – Mi-T-M Engine

• 7-Year – AR Pump