Product Description
The Simpson Big Brute Professional 4000 PSI Gas Hot Water Pressure Washer BB65106 is built for demanding commercial cleaning jobs where cold-water pressure washers are not enough. With a powerful Honda GX390 engine, 4000 PSI pressure rating, 4.0 GPM flow rate, hot-water cleaning capability, and a COMET industrial triplex plunger pump, this machine is made for contractors, facility maintenance teams, farms, fleet cleaning, workshops, equipment yards, and professional exterior cleaning applications. Simpson lists the BB65106 as a 4000 PSI at 4.0 GPM hot water professional gas pressure washer with a Honda GX390 engine and COMET triplex plunger pump.
The hot-water system helps remove grease, oil, grime, mud, road film, equipment buildup, and heavy surface contamination more effectively than a standard cold-water washer. This makes it useful for cleaning machinery, commercial vehicles, shop floors, loading areas, agricultural equipment, construction equipment, concrete surfaces, and other heavy-use environments.
At the core of the BB65106 is a Honda GX390 commercial engine equipped with low-oil shutdown protection. The pressure system uses a COMET industrial triplex plunger pump with an external unloader, safety relief valve, and bypass hose for professional-duty performance. The direct-drive setup keeps the power transfer simple and efficient, while the welded steel frame with powder-coated finish supports durability and corrosion resistance.
For cleaning reach and control, the unit includes a 3/8 in. x 50 ft. steel-braided hot water hose, rear-load spray gun, and 48 in. insulated grip lance. The included quick-connect nozzle tips allow the operator to switch between different spray patterns for hard surfaces, general washing, rinsing, and detergent application. Simpson lists the included nozzles as 15°, 25°, 40°, and soap.
The Big Brute BB65106 is designed as a professional machine, not a light household washer. It weighs 514 lb and uses a large frame with 10 in. premium pneumatic tires for movement across job sites and rougher surfaces. The gasoline engine fuel tank capacity is listed at 5.0 gallons, while the burner fuel tank capacity is 10.0 gallons diesel, giving the unit the fuel support needed for longer hot-water cleaning sessions.
Every unit is brand new, includes free shipping all over the USA, and is backed by a 3 Years Limited Warranty for added customer confidence.
Key Features
4000 PSI Professional Cleaning Pressure
Delivers 4000 PSI pressure for heavy-duty cleaning of concrete, equipment, vehicles, machinery, work areas, and commercial surfaces.
4.0 GPM High Water Flow
The 4.0 GPM flow rate provides strong rinsing volume, helping move dirt, mud, grease, and debris faster across larger surfaces.
Hot Water Cleaning Performance
Hot-water output improves cleaning effectiveness on grease, oil, road film, equipment grime, and heavy buildup compared to cold-water washing.
Honda GX390 Commercial Engine
Powered by a Honda GX390 engine with low-oil shutdown protection for dependable commercial-grade operation.
COMET Industrial Triplex Pump
Equipped with a COMET industrial triplex plunger pump with external unloader, safety relief valve, and bypass hose.
Direct Drive System
Direct-drive power transfer provides efficient operation and a straightforward professional washer design.
Steel-Braided Hot Water Hose
Includes an Armor 3/8 in. x 50 ft. steel-braided hot water hose with quick-connect fittings.
48-Inch Insulated Grip Lance
The long insulated lance gives better reach, control, and comfort when working with hot-water cleaning applications.
Quick-Connect Nozzle Set
Includes 15°, 25°, 40°, and soap nozzle tips for different cleaning tasks.
Heavy-Duty Welded Steel Frame
Powder-coated welded steel frame supports durability and corrosion resistance during professional use.
10-Inch Premium Pneumatic Tires
Large pneumatic tires help improve movement across job sites, garages, yards, shops, and uneven surfaces.
3 Years Limited Warranty
Includes a 3 Years Limited Warranty for added purchase confidence and product support.
Technical Specifications
| Specification | Details |
|---|---|
| Brand | Simpson |
| Series | Big Brute |
| Model Name | Big Brute BB65106 |
| Online Model No. | BB65106-S |
| In-Store Model No. | BB65106 |
| Part No. | 65106 |
| Generated SKU | SIM-BB65106-HWPW-001 |
| Product Type | Professional Gas Hot Water Pressure Washer |
| Condition | Brand New |
| Pressure Rating | 4000 PSI |
| Water Flow Rate | 4.0 GPM |
| Power Type | Gasoline |
| Engine | Honda GX390 |
| Engine Protection | Low-Oil Shutdown |
| Start Type | Recoil / Key Start |
| Drive Type | Direct Drive |
| Pump Brand | COMET |
| Pump Type | Industrial Triplex Plunger Pump |
| Pump Features | External Unloader, Safety Relief Valve, Bypass Hose |
| Hose | Armor 3/8 in. x 50 ft. Steel-Braided Hot Water Hose |
| Spray Gun | Rear-Load Spray Gun |
| Wand / Lance | 48 in. Insulated Grip Lance |
| Nozzles | 15°, 25°, 40°, Soap |
| Engine Fuel Tank | 5.0 gal Gasoline |
| Burner Fuel Tank | 10.0 gal Diesel |
| Frame | Welded Steel Frame with Powder-Coated Finish |
| Tires | 10 in. Premium Pneumatic Tires |
| Unit Dimensions | 50 in. L x 32 in. W x 47 in. H |
| Unit Weight | 514 lb |
| UPC Online | 636893404221 |
| California Sale Status | Not for Sale in California |
| Recommended Use | Commercial cleaning, fleet washing, equipment cleaning, shop maintenance, concrete cleaning |
| Shipping | Free Shipping All Over the USA |
| Warranty | 3 Years Limited Warranty |
Nozzle / Hose Configuration
| Component | Details |
|---|---|
| Pressure Rating | 4000 PSI |
| Flow Rating | 4.0 GPM |
| Hose Type | Steel-braided hot water hose |
| Hose Size | 3/8 in. x 50 ft. |
| Hose Connection | Quick-connect fittings |
| Spray Gun | Rear-load spray gun |
| Lance | 48 in. insulated grip lance |
| 15° Nozzle | Strong spray for tough surface cleaning |
| 25° Nozzle | General cleaning spray for equipment and hard surfaces |
| 40° Nozzle | Wider rinse pattern for lighter cleaning |
| Soap Nozzle | Low-pressure detergent application |
| Pump Setup | COMET industrial triplex pump with external unloader |
| Water Type | Hot water pressure washing |
What’s Included
| Included Item | Details |
|---|---|
| Simpson Big Brute BB65106 Hot Water Pressure Washer | Brand new professional washer unit |
| Honda GX390 Engine | Installed gasoline engine |
| COMET Industrial Triplex Pump | Installed professional-duty pump |
| 3/8 in. x 50 ft. Hot Water Hose | Steel-braided Armor hose with quick-connect fittings |
| Rear-Load Spray Gun | Trigger gun for pressure washing |
| 48 in. Insulated Grip Lance | Long lance for reach and hot-water operator comfort |
| Quick-Connect Nozzle Set | 15°, 25°, 40°, and soap nozzles |
| Welded Steel Frame | Powder-coated frame construction |
| 10 in. Pneumatic Tires | Installed wheel set for mobility |
| Burner System | Diesel-fueled hot-water burner system |
| Owner’s Manual | Setup, operation, maintenance, and safety guide |
| Warranty Coverage | 3 Years Limited Warranty |
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