4,200 PSI 4.2GPM Cold Water Gas Pressure Washer Honda GX390 Engine and General Triplex Pump on Stainless Steel Frame - B4213HSGS

4,200 PSI 4.2 GPM Cold Water Gas Pressure Washer with Honda GX390 Engine and General Triplex Pump on Stainless Steel Frame

The BE Power Equipment B4213HSGS Cold Water Pressure Washer is a commercial-grade gas pressure washer built for demanding cleaning applications across job sites, farms, facilities, and large properties. Delivering 4,200 PSI at 4.2 GPM, this unit pairs a proven Honda GX390 389cc engine with a commercial-grade General EZ4040G P4+ triplex pump featuring an external unloader and adjustable injector. Built on a durable 125S Stainless Steel Dealer Frame with 12" Ultra Premium Flat-Free tires and a 6.1 L fuel tank, the B4213HSGS is designed to deliver consistent field performance with superior corrosion resistance in wet, outdoor, and high-use environments.

Backed by the reliable Honda GX390 engine and paired with a General EZ4040G commercial-grade triplex pump, the B4213HSGS delivers smooth, consistent pressure for long work days and demanding environments. Gas pressure washers have greater portability as they do not require an electrical outlet, allowing them to be used in remote areas. They are preferred for heavy-duty and large-scale outdoor projects due to their superior performance and mobility.

Whether you need to clean concrete driveways, commercial buildings, farm equipment, trailers, or agricultural machinery, the B4213HSGS gives you the confidence to finish the job on time and on budget. Built with a rugged stainless steel frame, large Ultra Premium wheels, and pro-grade accessories, this pressure washer is easy to maneuver, easy to maintain, and always ready to work.

The pump is a critical component, and operating a gas pressure washer without water flowing through the pump can cause immediate and permanent damage to the machine. Gas pressure washers require regular maintenance such as fuel and oil changes, and winterization of the pump.

Introduction to Pressure Washing

When we engineer a pressure washer, our goal is straightforward: build a machine that delivers on the job, every time. From the first high-pressure spray to the final rinse, a well-matched pressure washer transforms cleaning tasks that would otherwise take hours by hand. We harness the raw power of pressurized water to restore driveways, decks, vehicles, and industrial equipment to their original condition. When you need results that hold up in commercial environments, the right pressure washer makes all the difference.

Choosing the right machine is about more than specs. It is about matching the equipment to the demands of the job, the frequency of use, and the surfaces you need to clean. The B4213HSGS is built for users who need commercial-grade output, field-adjustable pressure control, and a frame material that holds up in wet and corrosive environments over the long term.

Types of Pressure Washers

Pressure washers come in two primary configurations: electric and gas-powered. Electric models are lighter, quieter, and well suited for routine residential cleaning tasks where a power source is readily available. Gas pressure washers are designed for heavy-duty commercial work that requires higher pressure, higher flow, and the freedom to operate without access to an electrical outlet.

Our gas pressure washers, like the B4213HSGS, are powered by proven commercial engines and built for demanding, day-in-day-out use on construction sites, farms, commercial properties, and industrial equipment. When you need to work in remote locations or move continuously across a large property, a gas-powered unit delivers the portability that electric models cannot match.

Pressure washers also come in cold water and hot water varieties. Cold water units like the B4213HSGS are effective for the majority of outdoor cleaning tasks involving dirt, grime, mold, and surface buildup. Hot water models provide additional capability for grease and oil removal in industrial applications.

Built for Tackling Tough Outdoor Cleaning Jobs

The B4213HSGS was built to handle demanding outdoor cleaning jobs across residential and commercial environments. With 4,200 PSI and 4.2 GPM of output and an adjustable injector for detergent application, this unit delivers the pressure and flow to clean efficiently and consistently. The B4213HSGS is suited for:

• Building exteriors including siding, decks, driveways, fences, and walkways
• Vehicles, trailers, and work equipment
• Farm and agricultural equipment
• Concrete, asphalt, and hard surfaces
• Construction site cleanup and surface preparation

With its high PSI and GPM, this pressure washer handles dirt, grease, oil residue, mold, and surface buildup efficiently. As a cold water pressure washer, it delivers reliable cleaning performance without the added complexity of a hot water system.

Features

Honda GX390 Engine

The B4213HSGS is powered by the Honda GX390 389cc OHV engine, a proven commercial-grade engine used across demanding power equipment applications. The GX390 is a four-cycle, air-cooled overhead valve engine that delivers consistent torque and reliable performance through long run times. Key features include recoil start, a fuel shutoff valve, and an automatic low-oil shutdown that protects the engine if oil drops below a safe operating level.

The Honda GX390 engine is covered under Honda's separate engine warranty program, providing additional coverage on this critical component.

General EZ4040G Triplex Pump with External Unloader

Paired with the Honda engine is a commercial-grade General EZ4040G triplex pump (P4+ pump class) with an external unloader. The triplex design delivers smooth, consistent pressure output and longer service life compared to axial pump configurations, making the B4213HSGS well suited for frequent commercial use.

The external unloader allows you to adjust operating pressure to match the surface and application, and it redirects water flow when the trigger gun is released, keeping the pump cool during bypass operation and extending pump service life. The external unloader is also more accessible for field servicing and adjustment than a built-in configuration.

The pump includes a thermal relief valve that releases built-up heat if the unit is left running with the trigger closed for an extended period, protecting pump seals and internal components.

Adjustable Injector for Detergent Application

The B4213HSGS features an adjustable injector system, allowing you to dial in detergent concentration for different cleaning tasks. This gives you greater flexibility than a fixed injector, particularly when varying chemical dilution rates are required across different surfaces or cleaning products.

125S Stainless Steel Frame with Accessory Storage

The B4213HSGS is built on a 125S Stainless Steel Dealer Frame, a hand-truck-style frame that delivers superior corrosion resistance in wet, outdoor, and chemically exposed environments. Unlike powder-coated steel frames, the stainless steel construction resists rust without relying on a surface coating, making it a stronger choice for long-term durability in demanding conditions. Integrated accessory storage keeps the spray wand, hose, and nozzles organized and accessible. Stabilizing rubber feet provide a stable platform during operation.

50-Foot Steel Braided High-Pressure Hose

The B4213HSGS includes a 50' x 3/8" QC steel braided rubber hose with quick-connect fittings. The 3/8" diameter supports the 4.2 GPM flow rate of this unit, and the steel braided construction provides abrasion resistance for extended jobsite use. Fifty feet of reach lets you cover large areas without repositioning the machine.

36" Insulated Gun and Wand Assembly

The included 36" QC insulated gun and wand assembly provides reach and comfort for extended cleaning sessions. The insulated wand reduces heat transfer to the operator during prolonged use, and the quick-connect system makes setup fast and nozzle changes straightforward.

4 Quick-Connect Spray Nozzles

Four quick-connect nozzles are included to cover a range of cleaning applications:

• 15°: Focused, high-pressure spray for concrete, heavy staining, and surface preparation
• 25°: General-purpose spray for decks, siding, and equipment
• 40°: Wide-angle rinse for vehicles and delicate surfaces
• Soap: Low-pressure nozzle for applying detergent through the adjustable injector

12" Ultra Premium Flat-Free Tires

The B4213HSGS rolls on 12" Ultra Premium Flat-Free tires that handle uneven ground, gravel, and grass without the risk of flats. The larger wheel diameter and premium grade provide improved mobility when transporting the unit across varied terrain on jobsites.

Large Fuel Tank and Safety Features

The 6.1 L fuel tank supports long cleaning sessions without frequent refueling. The B4213HSGS includes the following safety systems:

• Low-oil shutdown: Automatically shuts the engine down if oil drops below a safe level, protecting the engine from damage
• Thermal relief valve: Releases built-up heat from the pump if the unit is left running with the trigger closed for an extended period

Benefits of Gas Pressure Washers

Gas pressure washers stand out for their cleaning power and portability. With proven commercial engines and higher PSI and GPM ratings than most electric models, gas-powered units are built for tackling demanding cleaning challenges across farms, construction sites, commercial buildings, and large properties.

True portability is one of the greatest practical advantages of a gas pressure washer. There are no extension cords and no need for a power outlet, which means you can clean wherever the work is — remote locations, large properties, and areas where electrical access is limited or unavailable.

For businesses and commercial users, the ability to complete jobs quickly and efficiently translates directly into productivity and reduced labour time. The B4213HSGS is built to deliver that performance reliably across demanding use cycles.

One Box, All Set with Pro-Grade Accessories

The B4213HSGS comes fully assembled and ready to work right out of the box. Add fuel, connect the water supply, and you are ready to go with the included package:

• 50' x 3/8" QC steel braided high-pressure hose
• 36" QC insulated spray gun and wand assembly
• 4 quick-connect spray nozzles (15°, 25°, 40°, and Soap)
• 125S Stainless Steel Frame with integrated accessory storage
• Engine oil, funnel, and spark plug wrench

A range of BE Power Equipment replacement accessories, cleaning products, and maintenance components are also available through your local dealer to keep this unit running season after season.

Choosing the Best Pressure Washer for Your Needs

When selecting a gas pressure washer for commercial or heavy-duty use, the key factors to consider are PSI, GPM, pump type, unloader configuration, and frame material. The B4213HSGS delivers 4,200 PSI and 4.2 GPM through a P4+ class General EZ4040G triplex pump with an external unloader on a 125S Stainless Steel frame — a configuration that provides field-adjustable pressure, superior corrosion resistance, and the longer service life that comes with a P4+ pump class.

The stainless steel frame is the primary differentiator between the B4213HSGS and comparable powder-coated steel frame models. For operations in coastal environments, chemical-heavy cleaning applications, or anywhere corrosion resistance over an extended service life is a priority, the stainless steel frame provides meaningful long-term value.

If you are uncertain which model is the right fit for your operation, your local BE dealer can help you evaluate the options based on your specific cleaning demands.

Getting the Most Out of Your Pressure Washer

Regular maintenance extends the service life of your pressure washer and keeps it performing consistently. Inspect hoses, nozzles, fittings, and the pump for signs of wear or damage regularly, and clean nozzles after each use to maintain consistent spray patterns and pressure.

Follow the manufacturer's maintenance schedule for the Honda GX390 engine and the General EZ4040G pump. This includes regular engine oil changes (10W-30), pump oil checks and changes (30W Non-Detergent), air filter inspection, and fuel management during storage periods.

For off-season storage, drain the fuel tank and run the engine dry, flush the pump with fresh water, and store the unit in a dry, covered location. If storing in freezing conditions, use an appropriate anti-freeze pump solution to protect pump seals and valves.

Always follow safety guidelines during operation: wear protective gear, never direct the spray at people or animals, and keep the unit away from open flames or sparks.

What You Can Use a Pressure Washer For

Pressure washers are effective tools across a wide range of residential, commercial, and industrial cleaning applications. The B4213HSGS, with 4,200 PSI and 4.2 GPM, is well suited for high-demand cleaning tasks including:

• Driveways, sidewalks, and concrete pads
• Building exteriors, siding, and masonry
• Vehicles, trailers, and agricultural equipment
• Decks, fences, and outdoor structures
• Surface preparation for painting or coating
• General property and facility maintenance

Gas-powered cold water pressure washers like the B4213HSGS deliver the power and flow for these applications efficiently, without the added complexity of a hot water system.

Maintenance and Safety Precautions

The B4213HSGS is a commercial-grade machine that performs best when maintained on a consistent schedule. Before each use, check engine oil level (10W-30), pump oil level (30W Non-Detergent), fuel level, and water connections. Inspect hoses, fittings, and nozzles for wear or damage. Never operate the pump without water flowing through it, as this can cause immediate and permanent pump damage.

During operation, wear appropriate protective equipment including safety glasses, gloves, and closed footwear. Keep the spray wand directed away from people, pets, and surfaces that could be damaged by high-pressure water. Do not operate in enclosed spaces due to engine exhaust.

After each use, flush the pump with clean water, clean nozzles, and store the unit in a dry, protected location. For seasonal storage, refer to the Honda GX390 engine manual and the General EZ4040G pump guidelines for winterization procedures.

If you have questions about maintenance, service intervals, or replacement parts, contact your local BE Power Equipment dealer or visit bepowerequipment.com for technical support resources.

The Lowdown on the B4213HSGS

Pressure: 4,200 PSI
Flow Rate: 4.2 GPM
Engine: Honda GX390 389cc OHV, Recoil Start
Pump: General EZ4040G Triplex, P4+ Class, External Unloader, Adjustable Injector
Frame: 125S Stainless Steel Dealer Frame with Accessory Storage
Hose: 50' x 3/8" QC Steel Braided Rubber Hose
Spray Wand: 36" QC Insulated Gun/Wand Assembly
Nozzles: 4 Quick-Connect, 15°, 25°, 40°, and Soap
Wheels: 12" Ultra Premium Flat-Free Tires
Fuel Tank: 6.1 L
Engine Oil Type: 10W-30
Pump Oil Type: 30W Non-Detergent
Drive Type: Direct Drive
RPM: 3,450
Unit Weight: 140 lbs / 63.5 kg
Unit Dimensions: 25" x 34" x 42"
Safety Features: Automatic low-oil shutdown, thermal relief valve
Warranty: 3-year limited (Honda GX390 engine covered under separate Honda warranty)
Factory Testing: Each unit is functionally tested before shipment. Minimal residual oil or fuel odor upon delivery is normal and confirms quality testing has been completed.

Warranty and Factory Testing

The B4213HSGS is covered by a 3-year limited warranty on the pressure washer frame, pump, and components. The Honda GX390 engine is covered under Honda's own engine warranty program.

Every unit is functionally tested at the factory before shipment. You may notice a small amount of residual oil or fuel odor upon delivery. This is normal and confirms the unit has completed quality testing and is ready for use.

Included in the Box

• 50' x 3/8" QC Steel Braided Rubber Hose
• 36" QC Insulated Gun/Wand Assembly
• 15°, 25°, 40°, and Soaper QC Nozzles
• Engine Oil, Funnel, and Spark Plug Wrench

Built for Demanding Cleaning Work

The BE Power Equipment B4213HSGS Cold Water Gas Pressure Washer combines a proven Honda GX390 engine, a commercial-grade General EZ4040G P4+ triplex pump with external unloader, and a 125S Stainless Steel frame in one complete, field-ready package. The external unloader and adjustable injector give operators the pressure control and chemical flexibility that commercial cleaning applications demand, while the stainless steel frame delivers the corrosion resistance that makes this unit a long-term investment in demanding environments.

B4213HSGS — 4,200 PSI 4.2 GPM Cold Water Gas Pressure Washer with Honda GX390 Engine and General Triplex Pump on Stainless Steel Frame.