Honda Gx390s

Kristen Cummings
13 min readJun 21, 2024

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Get ready to unveil the power behind the Honda GX390, as we bring you a comprehensive roundup of its key features and applications. This article aims to engage and inform you, showcasing the GX390’s impressive performance and versatility, making it perfect for various industries, including construction and agriculture.

The Top 10 Best Honda Gx390s

  1. Honda GX390 Gas Skid Mount Pressure Washer with High Performance Triplex Pump — The B3013HTBC 3000 PSI Honda GX390 Gas Skid Mount Pressure Washer with Comet Pump delivers reliable, trouble-free performance and longevity, making it an excellent choice for professional cleaning tasks.
  2. Powerful Honda GX390 Gas Pressure Washer — Unleash unmatched cleaning power with the 4000 PSI Honda GX390 Gas Pressure Washer, delivering stunning results in just 15 minutes without compromising on durability!
  3. Honda GX390 Powered Pressure Washer with CAT Triplex Pump — The Be Power 4200 PSI 3.9 GPM Gas Pressure Washer boasts a commercial Honda engine, CAT triplex pump, and professional-grade accessories for outstanding performance and ease of use.
  4. Honda GX390: Standard 1-Inch Crank Engine with Electric Start and Oil Alert — Honda GX390UT2-QAE2 Engine: Reliable, efficient, and versatile, offering a 390cc OHV engine, electric start, and innovative features for hassle-free operation in various applications.
  5. Ridgid 7000-Watt Gasoline Portable Generator with Honda GX390 Engine — Rev up your power game with the RIDGID 7000 Running Watt Gasoline Portable Generator, harnessing the efficient Honda GX390 engine for a reliable, clean power solution — perfect for both job sites and home backup needs.
  6. New Honda GX390 Engine: Honda GX390 Engine Features 1-inch Crank, Electric Start, Oil Alert — Honda GX390 Engine: Powerful, Quiet, and Fuel Efficient — The Perfect Choice for Your Equipment Needs
  7. Northstar Generator | 8,000 Surge Watt Honda GX390 — The Northstar Generator, powered by a Honda GX390 OHV engine, offers ultimate performance, extreme durability, and up to 20% less noise for demanding job sites with convenient features like a built-in battery charger and advanced safety technology.
  8. BE Power Equipment 4000 PSI 4.0 GPM Gas Pressure Washer with Honda GX390 Engine and Comet Triplex Pump — A powerful 4000 psi, 4 GPM gas pressure washer with a reliable Honda Gx390 engine and a Comet Triplex pump by BE Power Equipment, best suited for contractors.
  9. Simpson King Brute KB65133 Honda GX390 Gas Pressure Washer — Experience unparalleled cleaning power with the top-performing Simpson King Brute KB65133, featuring a reliable Honda GX390 engine and heavy-duty construction, backed by a patented design for extended life.
  10. Be Power Equipment 4000 PSI Gas Pressure Washer with Honda GX390 Engine and Comet Triplex Pump — Power through demanding tasks with ease and precision, as the Be Power Equipment 4000 PSI 4.0 GPM Gas Pressure Washer, backed by a Honda GX390 engine and a high-quality Comet Triplex Pump, tackles any commercial or residential challenge.

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Reviews

Honda GX390 Gas Skid Mount Pressure Washer with High Performance Triplex Pump

This powerful 3000 PSI 5.0 GPM high-pressure washer from BE Power Equipment is an essential tool for professional cleaners. It’s built with a robust Honda GX390 gas engine and a top-of-the-line Comet triplex pump, which guarantees longevity and efficiency. Its heavy-duty build and advanced features, like a protective soap injection system and externally loaded valves, make it a favorite among mobile cleaning enthusiasts.

Users praise its performance and reliability, but a drawback for some could be the absence of an electric starter. Nonetheless, the quality of the B3013HTBC makes it a standout choice.

Powerful Honda GX390 Gas Pressure Washer

I recently had the pleasure of using the PE-4013HWPSCOMZ 4000 PSI 4.0 GPM Honda GX390 Gas Pressure Washer New, and I can honestly say it’s made my cleaning tasks a lot more efficient and enjoyable.

One of my favorite features of this pressure washer is its impressive 4000 PSI max pressure and 4.0 GPM max flow. It easily tackled cleaning projects on driveways, building exteriors, and even some paint and gum removal tasks. The 389cc Honda GX390 gas engine provided the power I needed, while the 3/8" 50' high-pressure steel braided hose made it convenient to use.

However, there was one aspect of this pressure washer that I found a bit challenging — its weight. At 600 lbs, it’s a bit heavy to transport on your own, so it’s best to have a friend or two help you out when moving it around.

Overall, this pressure washer is a top-tier machine that I’d highly recommend for both residential and commercial use. It’s powerful, reliable, and durable, making it a worthy investment for anyone who needs a high-quality pressure washer.

Honda GX390 Powered Pressure Washer with CAT Triplex Pump

Step into the world of pressure washing with the BE Power 4200 PSI 3.9 GPM Gas Pressure Washer. This powerhouse, equipped with a Honda GX390 engine and Cat Triplex pump, is designed for those who demand professional results. The commercial Honda engine boasts a remarkable weight-to-power ratio, allowing for all-day use without breaking a sweat. The direct drive system ensures efficient power transfer between the engine and pump, resulting in a more compact and lightweight design. The CAT triplex pump, reinforced with a reinforced body, forged brass manifold, solid ceramic plungers, and thermal release valve, ensures unwavering performance.

With this pressure washer, you’ll appreciate the built-in unloader that regulates water flow in a compact design. A host of accessories, including a high-pressure hose, spray gun wand assembly, and spray nozzles, comes standard with the unit, making it easy to get started right out of the box. The heavy-duty stainless steel frame, complete with storage for accessories and 12 flat free tires, stands ready to tackle even the most treacherous terrain.

While this pressure washer packs a powerful punch, it’s not without its quirks. The handle location might prove to be an annoying obstacle when connecting and disconnecting the garden hose. Additionally, if not tightened properly, the glass water inlet filter can become loose, leading to a messy situation. Lastly, some users have reported an issue with oil leaks, possibly due to faulty low-pressure seals.

In summary, the BE Power 4200 PSI 3.9 GPM Gas Pressure Washer offers impressive cleaning capabilities and durability. Its user-friendly design and high-quality components make it a top choice for professional and DIY users alike. Just be prepared to handle the occasional quirk and make sure to follow the manufacturer’s guidelines for maintenance to keep this pressure washer performing at its best.

Honda GX390: Standard 1-Inch Crank Engine with Electric Start and Oil Alert

I recently got my hands on the Honda GX390UT2-QAE2 Engine and let me tell you, it’s been a game-changer in my daily life! The 390cc engine delivers reliable and dependable performance, allowing me to tackle all sorts of tasks with ease. One thing that stood out to me was the OHV design, which offers cooler, fuel-efficient operation and extends the engine life.

The electric start was another highlight — it’s smooth and effortless, making it so convenient to use. Plus, the Honda 389cc GX-series OHV commercial-grade engine is designed for easy maintenance, with features like large fuel tanks and simple throttle control. It even meets EPA and CARB emission level standards.

However, I did encounter a minor issue when I first received it — some damage on the pool start housing, air filter, and muffler. But the customer service was quick to help and resolve the issue.

All in all, the Honda GX390UT2-QAE2 Engine has been a reliable and efficient addition to my toolkit. It’s powered by a smooth, quiet, and fuel-efficient engine, which makes it a great choice for various applications like construction equipment, pressure washers, and more.

Ridgid 7000-Watt Gasoline Portable Generator with Honda GX390 Engine

The Ridgid Portable Generator is a powerful addition to any work site or home. With a heavy-duty Honda GX390 engine, it delivers 7000 Running Watt (8750 Starting Watt) and boasts an impressive 8-gallon fuel tank for up to 13 hours of run time at 50% load.

This generator offers clean power for all your needs, from laptops to table saws, thanks to the Armour heavy duty Alternator with auto voltage regulator. The GenSmart monitoring system keeps you informed of essential functions like wattage, voltage, hertz, hours of use, and even reminds you when it’s time for maintenance.

The zero-gravity hand-truck frame design and 10-inch tires make transportation a breeze, even in challenging conditions. The outlet panel features four 120-volt 20-amp (GFCI protected) outlets and one 240-volt 30-amp (GFCI protected) Twist Lock Outlet to accommodate all your power needs.

New Honda GX390 Engine: Honda GX390 Engine Features 1-inch Crank, Electric Start, Oil Alert

Recently, I had the chance to test out the Honda GX390 engine and let me tell you, it truly lives up to the legend. This engine is designed for more power, quieter performance, and lower fuel consumption. It’s perfect for a variety of applications, such as pressure washers, lawn and garden equipment, and even some small vehicles.

One of the most impressive features of this engine is the precision camshaft design. It offers precise valve timing and optimal valve overlap, resulting in better fuel efficiency. Another great feature is the large capacity, multi-chamber exhaust system, which reduces overall engine noise by up to 5 dB.

However, there is one downside — the engine can be a bit noisy during operation. Despite this minor issue, the Honda GX390 is an exceptional engine that delivers impressive performance and efficiency.

Northstar Generator | 8,000 Surge Watt Honda GX390

The Northstar Generator, with an 8,000 surge watt electric start and a powerhouse Honda GX390 OHV engine, is the epitome of toughness and resilience. This high-capacity generator is perfect for those demanding job sites that require unwavering durability and safety.

Its heavy-duty steel exoskeleton provides exceptional protection, backed by the reliable Honda GX390 engine. The generator boasts premium components for dependable performance under the heaviest workloads. And for quieter operation, its Quiet Armor Technology delivers up to a 20% reduction in noise as compared to leading commercial-grade portable generators.

Other noteworthy features include a built-in battery charger/maintainer for easy electric start battery charging and GFCI outlets on the job site for added security. Furthermore, carbon monoxide detection and automatic shutoff make sure you and the work environment are always protected.

In terms of convenience, the multi-functional LCD display provides users an all-in-one solution for seamless monitoring of all generator functions. Rugged 1–3/8-in. steel tube roll cages and flat-free tires strengthen the generator’s overall mobility and portability.

Despite its impressive features, this powerful generator comes in a package that weighs just 280 pounds — making it a portable, yet rugged asset on any job site.

BE Power Equipment 4000 PSI 4.0 GPM Gas Pressure Washer with Honda GX390 Engine and Comet Triplex Pump

The B4013HCS Commercial Series pressure washer is a powerful and reliable option for contractors, thanks to its Honda GX390 engine and Comet Triplex pump with external unloader. With a maximum pressure of 4000 psi and a flow rate of 4 gallons per minute, this unit can tackle any job with ease.

The 50-inch steel hose and 12-inch wheels make it versatile and convenient to use, while the Pro Style tips with quick disconnect ensure precision and control. Overall, the B4013HCS Commercial Series pressure washer is a well-built, sturdy, and highly functional tool that won’t disappoint.

Simpson King Brute KB65133 Honda GX390 Gas Pressure Washer

The Simpson King Brute KB65133 pressure washer is a powerful and efficient cleaning solution, perfect for tackling even the toughest dirt and grime. With its Honda GX390 engine and premium General Pump Industrial Triplex pump, this pressure washer boasts impressive performance and durability. The heavy-duty steel frame provides both stability and corrosion resistance, ensuring your equipment remains in top condition for years to come.

However, there are a few downsides to this pressure washer. The warranty doesn’t cover all parts, which can be frustrating when dealing with mechanical issues. Additionally, some users have reported receiving the pressure washer in non-working condition, which further adds to the dissatisfaction.

Overall, the Simpson King Brute KB65133 offers excellent cleaning power and performance, but it may not be the most reliable or user-friendly pressure washer on the market.

Be Power Equipment 4000 PSI Gas Pressure Washer with Honda GX390 Engine and Comet Triplex Pump

When it came to tackling tough cleaning jobs, this BE 4000PSI Pressure Washer saved the day. The Honda GX390 engine was a powerhouse, delivering 4000PSI to take down even the most stubborn dirt and grime. The large capacity fuel tank ensured a longer runtime, while the automatic low oil shutdown and thermal relief valve kept the machine running smoothly. The durable hand truck frame design and large flat-free wheels made transportation a breeze, and the 50 ft. steel hose meant I could reach hard-to-reach spots.

Despite the weight advantage provided by the aluminum frame, the unit still felt sturdy and well-built. The four quick-connect nozzles added versatility, making it suitable for various tasks. The BE 4000PSI Pressure Washer proved to be an excellent investment, helping me make money in the summer. The reviews attest to its performance and quality, making it a must-have for both commercial and residential cleaning needs.

Buyer’s Guide

When it comes to selecting the perfect engine for your needs, the Honda GX390 is a top contender. It’s a popular choice for professionals and enthusiasts alike. This guide will help you understand the key features, considerations, and advice for purchasing an engine in this category.

Popular Applications for Honda GX390

The Honda GX390 is a versatile engine, suitable for various applications. It powers small tractors, lawn equipment, and generators. The engine is often used for construction, farming, and landscaping tasks due to its power and durability. Consider the specific requirements of your project before making a decision.

Size and Weight

The Honda GX390 has a compact design, making it suitable for smaller spaces. It also weighs just under 150 pounds, making it a portable option for those who need to move equipment frequently. Consider the space and portability requirements of your project when selecting an engine in this category. A lighter, more compact engine could prove more convenient.

Engine Specifications and Performance

The Honda GX390 has a 4-stroke overhead valve engine with a displacement of 389cc. It outputs 9.7 horsepower and 1.4 lb-ft of torque. The engine’s performance is characterized by its fuel efficiency, which is a significant benefit for those concerned about the environment or operating costs. The Honda GX390 also offers quiet and smooth operation, perfect for residential environments or situations where noise levels need to be controlled.

Durability and Maintenance

Honda engines are renowned for their durability and reliability. The GX390 is no exception. Its cast iron cylinder sleeve, overhead valve design, and oil-cooling system all contribute to its longevity. Regular maintenance is essential to keep your engine in top condition. Honda provides a comprehensive maintenance schedule in the owner’s manual, ensuring you can keep your engine running smoothly for years to come.

FAQ

What is the Honda GX390 engine known for?

The Honda GX390 engine is a well-known and widely used engine in various small engine applications, such as lawn mowers, generators, and pumps. It is renowned for its durability, reliability, and performance. This engine is part of Honda’s industrial power equipment product line and is specifically designed for heavy-duty outdoor tasks.

The Honda GX390 has a robust cast iron cylinder block, a forged crankshaft, and a precision-machined timing gear. These features contribute to its long-lasting performance and ability to withstand demanding conditions. Additionally, the engine comes in a convenient vertical-shaft design, which helps reduce weight and size while providing better maneuverability and easier storage.

What is the power output of the Honda GX390 engine?

The Honda GX390 engine has an impressive power output of 3.6 kW (or approximately 4.8 horsepower) at 3,600 rpm. This high-power output is achieved due to its advanced technology, which includes a high-performance air filtration system and an efficient cooling system that helps maintain optimal performance levels even under heavy workloads.

This engine is suitable for various applications that require significant power, such as running heavy-duty generators, powering large air compressors, and running powerful lawn mowers or pumps. Additionally, its excellent power-to-weight ratio means that the engine can be used in applications where size and weight are crucial factors.

What are the dimensions of the Honda GX390 engine?

The dimensions of the Honda GX390 engine are as follows: 5.0 inches (127 mm) in height, 5.1 inches (130 mm) in width, and 8.1 inches (206 mm) in length. The engine also has a weight of approximately 67.2 pounds (30.4 kg) when it is equipped with a recoil starter and an electric start system with a battery. These dimensions are designed to provide optimal performance and power output while maintaining compactness and maneuverability.

The dimensions of the GX390 engine are suitable for a range of applications, but it is recommended to verify the specific dimensions of the engine model you are considering for your project or application, as some variations may be available in the market. It is also essential to evaluate the compatibility of the engine with your intended application based on factors such as weight, size, and power requirements.

What is the fuel consumption of the Honda GX390 engine?

The fuel consumption of the Honda GX390 engine is relatively low, given its impressive power output. It has a fuel consumption rate of approximately 0.27 gallons (1 liter) per hour at 75% load, which translates to approximately 3.1 gallons (11.7 liters) per hour at 100% load. This efficient fuel consumption is attributed to the engine’s advanced technology, which includes a high-efficiency combustion system, optimized ignition timing, and a sophisticated governor system that maintains optimal engine performance and responsiveness.

The low fuel consumption of the Honda GX390 engine also helps contribute to reduced operating costs, as you can expect to spend less on fuel consumption and maintenance when compared to other engines in its class. Additionally, this fuel efficiency helps reduce noise and exhaust emissions, making the Honda GX390 engine an eco-friendly and environmentally friendly choice for various outdoor power equipment applications.

What are the maintenance requirements for the Honda GX390 engine?

The Honda GX390 engine is designed to be easy to maintain, and it requires routine maintenance to keep it running efficiently and effectively. Some of the key maintenance requirements include changing the oil and oil filter regularly, checking and replacing the air filter as needed, and ensuring that the cooling system and fuel system are functioning properly.

Additionally, the engine should be periodically inspected for signs of wear, such as loose bolts, damaged belts, or worn parts. Regular maintenance and proper care of the Honda GX390 engine help extend its lifespan and ensure optimal performance. It is also recommended to follow the engine manufacturer’s recommended maintenance schedule and use only genuine Honda parts for any repairs or replacement of worn components.

What are the available options and accessories for the Honda GX390 engine?

The Honda GX390 engine is available in various options and configurations, including different starter systems (such as recoil start, electric start, or both), power levels, and mounting configurations. It also comes in both horizontal-shaft and vertical-shaft designs, providing flexibility for various applications.

Additionally, there is a wide range of accessories and optional equipment available for the Honda GX390 engine, such as electronic fuel injection systems, automatic decompression systems, and engine covers. These accessories can enhance the engine’s performance, durability, and ease of use, depending on your specific needs and applications. It is essential to choose the appropriate options and accessories based on your intended use and requirements to ensure optimal performance and longevity of the engine.

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