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BE Power Equipment

4,200 PSI 4.2 GPM Cold Water Gas Pressure Washer Honda GX390 Engine and CAT Triplex Pump on Stainless Steel Frame - B4213HSJ

SKU B4213HSJ
$2,263.16
$1,929.99
$2,263.16
$1,929.99

Estimated shipping time

You can typically expect your items to arrive within 4–7 business days, depending on your location and product availability.

What is your Return Policy?

At Prime Machinery Supply, we want every customer to shop with confidence. If something doesn’t go as planned, we’ve made returns and refunds simple and fair. Here’s how it works:

1. Return Window

You can request a return within 30 days of receiving your order. Unfortunately, we’re unable to accept returns after that time frame.

2. Who Pays for Return Shipping?

  • If your item arrives damaged, defective, or incorrect, we’ll cover the return shipping cost.
  • If you’re returning an item because you changed your mind, you’ll be responsible for return shipping fees.

3. Damaged or Defective Items

Received something broken or not working properly? Contact us within 30 days. We’ll provide a prepaid return label and once the item is returned and inspected, we’ll issue either a full refund or a replacement—including any original shipping costs.

4. Changed Your Mind?

If you no longer want the item, you can return it within 30 days—as long as it's unused, in its original packaging, and in resellable condition. You’ll need to handle the return shipping, and once we receive and inspect it, we’ll refund the product cost (excluding shipping).

5. Refund Processing

Once we receive and approve your return, we’ll send a confirmation email and issue a refund to your original payment method within 7 business days. Please allow additional time for banks or credit card companies to process and reflect the refund.

If it’s been over 10 business days since your refund was approved and you still don’t see it, contact us at support@primemachinerysupply.com and we’ll look into it immediately.

6. Restocking Fees

In some cases, a restocking fee may apply depending on the item and return reason. If applicable, we’ll clearly communicate this during your return request process.

Product Description

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

The BE Power Equipment B4213HSJ is a commercial-grade cold water gas pressure washer delivering 4,200 PSI at 4.2 GPM, powered by a proven Honda GX390 389cc OHV engine and paired with a commercial-grade CAT 67DX39G1I P4 triplex pump with built-in unloader and fixed injector. Built on the 125S Stainless Steel Dealer Frame with 12" Ultra Premium flat-free tires and onboard accessory storage, the B4213HSJ is engineered for operators who need the long-term corrosion resistance of a stainless steel frame in demanding wet, outdoor, or chemical-exposure environments.

The 125S Stainless Steel Dealer Frame resists rust and corrosion more effectively than powder-coated steel over the long term, particularly in environments with regular water and chemical contact, coastal conditions, or high humidity. Whether you're cleaning concrete driveways, vinyl siding, agricultural equipment, trailers, or commercial building exteriors, the B4213HSJ gives you the power and durability to get the job done.

Built for Serious Outdoor Cleaning

The B4213HSJ is built to tackle demanding outdoor cleaning without slowing down. It is well suited for:

  • Cleaning residential and commercial exteriors including siding, decks, driveways, fences, and walkways
  • Vehicle, trailer, and equipment washing
  • Farm and agricultural equipment cleaning
  • Concrete and hard surface cleaning
  • Construction site cleanup and surface preparation

Features

Honda GX390 Engine

The B4213HSJ is powered by the Honda GX390 389cc OHV recoil start engine, a commercial-grade engine known for reliability, consistent output, and long service life. Key engine features include:

  • Reliable recoil start and smooth operation
  • High-torque OHV design for consistent output
  • Automatic low-oil shutdown to protect the engine from damage
  • Fuel-efficient OHV design for extended runtime
  • 6.1 L / 1.6 GAL fuel tank for extended operation between refueling

The Honda GX390 engine is covered under Honda's separate engine warranty program.

Commercial-Grade CAT P4 Triplex Pump with Built-In Unloader

Paired with the Honda engine is a commercial-grade CAT 67DX39G1I P4 class triplex pump with built-in unloader. CAT Pumps is a trusted commercial and industrial pump brand known for reliability in high-pressure cleaning applications. The triplex design delivers smooth, consistent pressure output and longer service life compared to axial pump configurations.

The built-in unloader regulates water flow and maintains consistent pressure when the trigger gun is released, protecting the pump during bypass operation. 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.

The B4213HSJ uses a fixed injector — detergent is drawn at a fixed rate when the soap nozzle is attached. Switch to the soap nozzle to apply detergent, then swap back to a pressure nozzle to rinse. Operators requiring adjustable detergent concentration should consider the B4213HSJS, which features an external unloader and adjustable injector.

125S Stainless Steel Dealer Frame

The B4213HSJ is built on the 125S Stainless Steel Dealer Frame, a hand-truck style platform constructed from stainless steel rather than powder-coated carbon steel. Stainless steel provides superior long-term corrosion resistance in environments with regular water exposure, chemical contact, coastal salt air, or high humidity — extending the service life of the frame where standard steel frames would corrode over time. The frame includes onboard accessory storage for the hose, wand, and nozzles, with stabilizing rubber feet for steady operation.

50-Foot x 3/8" Single Wire Braided High-Pressure Hose

The included 50' x 3/8" QC single wire braided rubber hose provides durability and extended reach for cleaning large areas without repositioning the machine. The 3/8" diameter supports the full 4.2 GPM flow rate of this unit.

36" Insulated Spray Wand and Trigger Gun

The included 36" QC insulated spray wand provides reach and control for high, low, and hard-to-reach cleaning angles. The insulated design reduces heat transfer to the operator during prolonged use, and the quick-connect system makes nozzle changes fast and straightforward.

4 Quick-Connect Spray Nozzles

Four quick-connect nozzles cover a full range of cleaning applications:

  • 15°: Heavy-duty cleaning and surface stripping
  • 25°: General-purpose washing
  • 40°: Rinsing or cleaning delicate surfaces
  • Soap: Low-pressure nozzle for applying detergent through the fixed injector

12" Ultra Premium Flat-Free Tires

The 12" Ultra Premium flat-free tires roll easily over gravel, dirt, and uneven terrain without requiring air inflation — no flats, no downtime.

Safety Features

  • Automatic low-oil shutdown: Turns off the engine if oil drops below a safe operating level
  • Thermal relief valve: Releases built-up heat from the pump when the unit is left running with the trigger closed

Warranty and Factory Testing

The B4213HSJ is backed by a 3-year limited warranty from BE Power Equipment. The Honda GX390 engine is covered separately under Honda's manufacturer warranty program.

Each unit is functionally tested at the factory before shipping. Your pressure washer may arrive with minimal residual oil or fuel odor, which confirms the unit has passed quality testing and is ready for use.

Product Specifications

  • Pressure: 4,200 PSI
  • Flow Rate: 4.2 GPM
  • Engine: Honda GX390 389cc OHV, Recoil Start
  • Pump: CAT 67DX39G1I Triplex, P4 Class, Built-In Unloader, Fixed Injector, Thermal Relief Valve
  • Drive Type: Gas Direct Drive
  • RPM: 3,450
  • Frame: 125S Stainless Steel Dealer Frame with Onboard Accessory Storage
  • Hose: 50' x 3/8" QC Single Wire 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 / 1.6 GAL
  • Engine Oil Type: 10W-30
  • Pump Oil Type: 30W Non-Detergent
  • Unit Weight: 140 lbs / 63.5 kg
  • Unit Dimensions: 25.0" x 34.0" x 42.0"
  • Series: Commercial
  • Safety Features: Automatic low-oil shutdown, thermal relief valve
  • Warranty: 3-year limited (Honda GX390 engine covered separately by Honda)
  • 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.

Included in the Box

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

Built to Last — Trusted by Professionals

The BE Power Equipment B4213HSJ combines a proven Honda GX390 389cc engine, a commercial-grade CAT 67DX39G1I P4 triplex pump with built-in unloader, and a corrosion-resistant 125S Stainless Steel Dealer Frame into a reliable, mobile cleaning platform. For operators who need the added frame durability of stainless steel construction in wet, chemical, or coastal environments, the B4213HSJ delivers dependable commercial cleaning performance backed by a 3-year limited warranty.

B4213HSJ — 4,200 PSI 4.2 GPM Cold Water Gas Pressure Washer with Honda GX390 Engine and CAT Triplex Pump on Stainless Steel Frame.

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