Best Diesel Generators Deals - Top 10 in October 2025

Last Update: 01. November 2025
1
Best Choice
9.9
K&S Könner&Söhnen

  • The diesel generator is equipped with a vandal-proof housing with better heat distribution inside, which ensures a longer service life of the device.
  • Unique innovative VTS phase switching system allows the generator to be used either in three-phase (400V) or single-phase mode (230V) almost without loss of power.
  • The diesel generator can be operated with an external ATS unit. It is equipped with a 6-pin connector socket that allows the generator to automatically turn on and off and maintain battery charge status in standby mode.
  • The air pre-heater ensures an effortless start of the diesel power generator in the cold season.
  • Ergonomic control panel of the generator allows easy operation of the diesel generator including the LED display (voltage, frequency, operating hour), overload and short circuit protection, low oil indicator, sockets, earth screw, 12 V terminals, etc.
  • The & S company motor meets European quality standards, including the new exhaust standard Euro 5, and is equipped with an individual serial number with which we can monitor the production and service quality.
Colour Brand Weight
9300de-1/3 Atsr K&S Könner&Söhnen 180 kg
£1,59900
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2
Best Value
9.8
AIVOLT
TODAY 18% OFF!
£379.93 (18% DISCOUNT!)

FREE delivery**
  • Pure Sine Wave Power - AIVOLT portable generator has a powerful 80cc 4 stroke OHV air-cooled 100% copper winding engine which can produce 1800 maximum watts and 1700W continuous watts steady clean power (less than 3% THD) with very low fuel consumption. Ideal for sensitive electronics such as phones, laptops and many large outdoor garden appliances.
  • Eco Mode & Long Runtime - A fully fueled 3L tank will provide you consistent power for up to 8 hours making the generator extremely economical. It runs 7 hours at 25% load (450W), 5 hours at 50% load(900W), 3.4 hours at 75% load(1350W), 3 hours at 100% load. In Eco-mode, it even runs more time and prolongs generator’s life. Perfect for RV camping, construction, jobsites and power failures.
  • Unique Feature and Multifunction Control Panel - The outstanding design features bright orange appearance and a multifunctional panel including parallel outlets, a standard 230v 3 pin socket, 2 USB charging ports(type-A & type-C), a 12v DC charging outlet. It's convenient to double or even triple your power by using the parallel kit to connect to another AIVOLT inverter generator (including 1.2KW, 1.8KW, 3.3KW).
  • Ultra Lightweight and Low Noise - Weighing in at only 15kg, and nearly 15% lighter than other same power compact generators. The labor-saving and ergonomic handle is very easy to lift. When the generator is at 25% load, it comes with 59 decibels noise at 23 feet that is comparable to the sound of a normal conversation.
  • The package contains: 1*1800W petrol generator, 1*spark plug wrench, 1*oil funnel, 1*12V DC battery charging cable, 1* screw driver, 1* quick start guide, 1*manual.
Colour Brand Weight
Orange AIVOLT 15 kg
£30999
RRP: £379.93 -18%
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3
9.7
maXpeedingrods
TODAY 9% OFF!
£339.99 (9% DISCOUNT!)

FREE delivery**
  • 【Multifunction Power Supplier】4-stroke petrol generator produces 3500W max watts and 3200W running watts. It is easily able to keep the lighting system or a small family house, power air conditioners and many other small appliances such as refrigerators,coffee machine at the same time.
  • 【Provide Clean Power】This inverter technology provides more steady power, produces clean power to safely operate and prevent damage to sensitive electronics such as phones, tablets, televisions and computers.
  • 【Multi-Function Display】Easy to monitor voltage and frequency power; display remaining fuel, which is suitable for timely fuel change; display cumulative runtime, which is suitable for later generator maintenance; display unique runtime, perfect timer function.
  • 【Lightweight and Powerful Motor】Only 26 kg, small and compact, easy to carry, 223 cc OHV motor with two 230 V ports and a 12 V DC connector, provides plenty of power for multiple tasks.
  • 【Brand Warranty】 Maxpeedingrods warrants all the inverter generators against defects in workmanship under normal use for a period of 2 years from the date of retail purchase by the original end-user purchaser ("Warranty Period"), and free lifetime technical support and customer service.
Colour Brand Weight
Orange/Black maXpeedingrods 26 kg
£30999
Was: £339.99 -9%
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4
9.7
maXpeedingrods
TODAY 11% OFF!
£549.99 (11% DISCOUNT!)

FREE delivery**
  • 【Multifunction Power Supplier】 Quiet and fuel efficient 4 stroke 145cc petrol generator produces 3300W max watts and 3000W running watts. It is easily able to run the lighting system, RV or a small family home. And run a huge range of high-power appliances such as an air conditioner with 6000 BTU cooling capacity, refrigerators, kettles, and even more appliances at the same time.
  • 【Low noise】When the generator is in ECO mode at 25% load and is 7m away from the generator, the noise level is 58 decibels. which is almost the quietest generator of this rated power. At this noise level, there is little disturbance for users and people nearby. Please note that ambient noise may affect the overall value of the noise of the machine.
  • 【Extra Long Runtime】Runs 8.3 hours at 25% load (750w load) 、4.5 hours at 50% load (1500w load). In ECO mode, the runtime can be extended up to 10-12 hours. Guaranteed power supply overnight.
  • 【Provide Clean Power】This inverter technology provides more steady power, produces clean power to safely operate and prevent damage to sensitive electronics such as phones, tablets, televisions and computers.
  • [Brand Warranty] Maxpeedingrods warrants all the inverter generators against defects in workmanship under normal use for a period of 2 years from the date of retail purchase by the original end-user purchaser ("Warranty Period"), and free lifetime technical support and customer service.
Colour Brand Weight
Orange,black maXpeedingrods 21 kg
£48999
RRP: £549.99 -11%
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5
9.7
AIVOLT
TODAY 11% OFF!
£269.99 (11% DISCOUNT!)

FREE delivery**
  • Unique Feature and Multifunction Control Panel - The outstanding design features bright orange appearance and a multifunctional panel including parallel connectability, a standard 230v 3 pin socket, 2 USB charging ports(type-A & type-C), a 12v DC charging outlet. Suitable for TVs, computers, small electric tools and many kitchen appliances.
  • Ultra Lightweight and Low Noise - Only weighs 12kg, and nearly 15% lighter than other same power compact generators. The labor-saving and ergonomic handle is very easy for a young woman to lift. When the generator is at 25% load, it comes with 58 decibels noise at 23 feet that is comparable to the sound of a normal conversation.
  • Pure Sine Wave Power - This inverter generator has a powerful 60cc 4 stroke OHV air-cooled 100% copper winding engine which can produce 1.2kw starting watts and 1.1kw continuous watts steady clean power with very low fuel consumption. Ideal for sensitive electronics such as phones, laptops.
  • Eco Mode & Long Runtime - A fully fueled 2.5L tank will provide you consistent power for up to 10 hours making the generator extremely economical. It runs 8 hours at 25%, 5.5 hours at 50% load, 4 hours at 75% load, 3.1hours at 100% load. In Eco-mode, it even runs more than 10 hours and prolongs generator’s life. Perfect for RV travel, jobsites and home use.
  • The package contains: 1*1200W petrol generator, 1*spark plug wrench, 1*oil funnel, 1*12V DC battery charging cable, 1* screw driver, 1* quick start guide, 1*British plug, 1*manual.
Colour Brand Weight
Orange AIVOLT 12 kg
£23999
Was: £269.99 -11%
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6
9.6
maXpeedingrods

FREE delivery**
  • 【Multifunction Power Supplier】The MXR3800 4-Stroke OHV inverter generator produces 3500W peak watts and 3200W running watts, it is ideal for camping, festivals, tailgating, caravans and home power backup.
  • 【Low noise】When the generator is in ECO mode at 25% load and is 7m away from the generator, the noise level is 58 decibels.
  • 【Portable and Lightweight】Thanks to its compact construction, this generator weighs 21 KG. Designed with a handle, it is extremely lightweight and easy to carry.
  • 【Provide Clean Power】 It can provide safe, high-quality power for sensitive devices without affecting their service life. For example, it can directly charge mobile phones, laptops, cameras and other digital devices.
  • 【Brand Warranty】Maxpeedingrods warrants all inverter generators against manufacturing defects under normal use for a period of 2 years from the date of retail purchase by the original end user ("Warranty Period") and provides free lifetime technical support and after-sales service
Colour Brand Weight
- maXpeedingrods 23.8 kg
£49999
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7
9.5
K&S Könner&Söhnen

  • Branded engines Engines for diesel generators, as well as for gasoline, are manufactured under license DIMAX Int. GmbH and are marked with their own brand with the logo. In all models, the power reserve of the engine in relation to the alternator allows you to issue the declared voltage and maintain its stability in the full range of voltages. All engines are tested for long continuous operation, and then disassembled and examined for faults. Each engine and each generator has an individual serial number, which allows us to control the quality of production and service.
  • VTS system Universal generators 2 in 1 with a unique phase switching system VTS (Voltage Transfer Switch), which allows you to use one generator as a single-phase (230V) and three-phase (400V) with almost no loss of power. Each mode has its own automatic protection. No need to buy two separate generators.
  • Automatic transfer switch The ATS (Automatic Transfer Switch) unit automatically starts the generator and transfers load to it when the main power supply is disconnected and automatically stops the generator when the central power supply is restored.
  • Pre-start heating (PREHEATER) Diesel generators series "HEAVY DUTY" are equipped with a pre-start heating function, which allows you to run the generator in the winter without much effort.
  • Housing All-season, noise-absorbing, vandal-proof casing provides effective protection of the generator and prolongs its service life. The casing is equipped with handles and transport wheels for easy movement.
  • Transport wheels The generator housing is equipped with a 4-wheel transport set for easy movement of the unit.
Colour Brand Weight
9200hdes-1/3 Atsr K&S Könner&Söhnen 168 kg
£1,44400
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8
9.4
AXpower Inspirational Technology Empowering People

  • 🚗 Quick Engine Starting Aid Formulated to start petrol and diesel engines quickly in cold, damp, or frosty weather.
  • 🌡️ Cold Weather Performance Ideal for winter months—helps overcome hard starting caused by temperature or moisture.
  • 🔧 Suitable for All Engine Types Perfect for cars, vans, motorcycles, lawn mowers, tractors, boats, and generators.
  • 🧴 Easy to Use Spray Can Simple spray action into the air intake—no tools or mechanical knowledge needed.
  • 🧳 Emergency Kit Essential Keep in your vehicle or garage—essential for drivers, mechanics, and DIY enthusiasts.
Colour Brand Weight
- AXpower Inspirational Technology Empowering People -
£1499
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9
9.3
mashine

  • 【1000W power output】Mashine portable power station built-in 1000W pure sine wave output, so suitable for most household appliances, the voltage stable and will not damage your electrical devices, with smart parameters display. (Please do not supply power for over 1000W appliances, otherwise mashine power station will enter into the protection state.)
  • 【Output and input】4 AC outlets (220-230V), 1 cigarette lighter (DC12V/120W), 4 USB ports (DC5V/2A) and dual DC charging input, charged fully only need 4 hours. (Please fully charge for power station during first use.)
  • 【Portable & compact】Mashine power station with handle, weight only 260 ounces, very easy to carry wherever you go. Perfect for camping, off grid adventures, Rv trips, overnight fishing trips, outdoor grill party. It can also runs laptops, smartphones, drones, mini iceboxs, cameras or other outdoor electrical devices. At same time it is a best backup battery when power outage.
  • 【Multiple smart protection】The power station provides high temp, short circuit, load & over load and over current protection to ensure your devices is safety. (The power station will generates heat when working, so cooling fan will produces noise during high speed rotating, this is a normal phenomenon, please do not worry for this.)
  • 【Multiple env charging】The power station can be charged by household outlets, trucks cigarette lighter or solar panels (not included in the package). It also has a lighting function with 4 modes: Strong, Weak, SOS, Red and blue alternately flashes, full meet your various needs when you going out camping.
Colour Brand Weight
Light Green mashine 7.35 kg
£19999
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10
9.2
WIN
TODAY 13% OFF!
£14.99 (13% DISCOUNT!)

FREE delivery**
  • 🛒【Professional Auto Parts Kit】You will receive a car generator exhaust hose that is 120 cm (47.2 in) long and 25 mm (1 in) in diameter, a 60cm long intake pipe, a stainless steel silencer and a filter. There are also 4 clips and mounting kits that allow the parking heater to be better fixed to ensure a perfect seal.
  • 🛒【High Quality Stainless Steel Material】The parking heater fuel tank exhaust pipe is made of high quality stainless steel, which has the advantages of long service life, health and safety, heat resistance, corrosion resistance, wear resistance and durability. Fully sealed, you don't have to worry about leaks.
  • 🛒【Effective Noise Reduction】The car auxiliary heater is made of high quality stainless steel, which has good noise reduction effect.
  • 🛒【Easy to Install】Generator exhaust hose is highly stretchable, can be bent to desired position. Directly remove the old or damaged exhaust hose, connect the new stainless steel exhaust pipe to the car, and clip the two ends of the exhaust pipe with the buckle, just a few minutes to complete the installation.
  • 🛒【Wide Application】MaxEarn heater exhaust pipe can be installed in most cars with air diesel heaters. Gas breather hose also is suitable for crude oil parking heater, tail pipe diesel gas vent, vehicle air auxiliary heater, diesel parking heater and fuel tank gas exhaust hose.
Colour Brand Weight
- MaxEarn -
£1299
Was: £14.99 -13%
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* the possibly used term "best" etc. refers only to our possibly subjective personal opinion.
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1. The prices shown may have risen since the time we last updated them.
2. The actual price of the product on the seller’s site at the time of purchase will govern the sale.
3. It is not technically possible for the prices displayed above to be updated in real-time. 

More information and FAQs about the featured Diesel Generators in this comparison:


Technical Details
Colour Orange
Brand AIVOLT
Weight 15 kg
Advantages
  • Portable
  • Compact
  • Silent
  • Pure Sine Wave
  • Versatile
FAQs about AIVOLT 1800W Petrol Inverter Generator 4 Stroke 80cc Engine Portable Silent Generator for Camping, Jobsites, Home Use-Pure Sine Wave, Super Lightweight
What are the dimensions and weight of the generator?
The AIVOLT 1800W Petrol Inverter Generator has dimensions of 19.3 x 11.8 x 17.9 inches and weighs approximately 62 pounds.
How loud is the generator during operation?
The AIVOLT 1800W Petrol Inverter Generator is super lightweight and features a silent operation, making it ideal for camping or use in noise-sensitive environments.
Is this generator suitable for powering sensitive electronics?
Yes, the AIVOLT 1800W Petrol Inverter Generator provides a pure sine wave output, making it safe to power sensitive electronics such as laptops, smartphones, and other devices.
What is the fuel capacity and runtime of the generator?
The generator has a fuel capacity of 1.58 gallons and can run for up to 8 hours at 50% load, providing reliable power for camping, jobsites, or home use.
Does the generator come with any additional features or accessories?
Yes, the AIVOLT 1800W Petrol Inverter Generator comes with a convenient carry handle, a 12V DC outlet, and an overload protection system for added safety.
Technical Details
Colour Orange/Black
Brand maXpeedingrods
Weight 26 kg
Advantages
  • Portable
  • Inverter
  • Pure Sine Wave
  • Versatile
FAQs about maXpeedingrods 3500W Portable Inverter Generator 4-Stroke Pure Sine Wave Petrol Generator for Camping, RV Travel, Home, or Jobsites
What is the maximum power output of the maXpeedingrods generator?
The maximum power output of the maXpeedingrods generator is 3500W, making it suitable for various applications such as camping, RV travel, home backup, or jobsites.
What type of generator is the maXpeedingrods portable inverter generator?
The maXpeedingrods generator is a 4-stroke pure sine wave petrol generator, which ensures stable and clean power output for sensitive electronic devices.
Is the maXpeedingrods generator suitable for camping?
Yes, the maXpeedingrods generator is suitable for camping as it provides portable power for various camping appliances and devices.
Does the maXpeedingrods generator have a compact design?
Yes, the maXpeedingrods generator features a portable and compact design that allows for easy transportation and storage during camping trips or other outdoor activities.
Can the maXpeedingrods generator be used for home backup?
Yes, the maXpeedingrods generator can be used for home backup to provide power during emergencies or power outages.
Technical Details
Colour Orange,black
Brand maXpeedingrods
Weight 21 kg
Advantages
  • Portable
  • Silent
  • Pure Sine Wave
  • Suitable for camping
  • Ideal for RV travel
FAQs about maXpeedingrods 3300W Portable Inverter Generator Petrol Silent Pure Sine Wave Generator for Camping, RV Travel, Home, or Jobsites
What is the wattage of the maXpeedingrods portable inverter generator?
The maXpeedingrods portable inverter generator has a wattage of 3300W.
Is the maXpeedingrods generator petrol-powered?
Yes, the maXpeedingrods generator is petrol-powered.
Does the generator produce pure sine wave power?
Yes, the maXpeedingrods generator produces pure sine wave power.
Can I use the generator for camping or RV travel?
Yes, the maXpeedingrods generator is suitable for camping and RV travel.
Is the generator silent during operation?
Yes, the maXpeedingrods generator is designed to be silent during operation.
Technical Details
Colour Orange
Brand AIVOLT
Weight 12 kg
Advantages
  • True Sine Wave
  • Super Lightweight
  • Ultra Quiet
  • Portable
  • Suitcase Design
FAQs about AIVOLT 1200W Petrol Inverter Generator 4 Stroke Portable Silent Suitcase Generator for Camping, Home Use - True Sine Wave, Super Lightweight, Ultra Quiet
What is the power output of the AIVOLT 1200W Petrol Inverter Generator?
The AIVOLT 1200W Petrol Inverter Generator has a power output of 1200W.
Is the AIVOLT 1200W Petrol Inverter Generator portable?
Yes, the AIVOLT 1200W Petrol Inverter Generator is portable and designed for easy transportation.
Does the AIVOLT 1200W Petrol Inverter Generator produce a true sine wave?
Yes, the AIVOLT 1200W Petrol Inverter Generator produces a true sine wave, ensuring stable and clean power for sensitive devices.
How lightweight is the AIVOLT 1200W Petrol Inverter Generator?
The AIVOLT 1200W Petrol Inverter Generator is super lightweight, making it ideal for camping and other outdoor activities.
Is the AIVOLT 1200W Petrol Inverter Generator quiet in operation?
Yes, the AIVOLT 1200W Petrol Inverter Generator is ultra quiet, providing a peaceful environment during use.

General information you should know about Diesel Generators:


Diesel generators are an essential asset for a wide range of industries and applications. They are known for their reliable power supply and robust performance, making them a popular choice for both commercial and residential use. In this text, we will discuss the key features and advantages of diesel generators, as well as highlight the importance of conducting a product comparison before making a purchase decision.

Diesel generators are renowned for their durability and longevity. They are designed to withstand heavy usage and adverse weather conditions, making them highly reliable sources of power. With their heavy-duty engines and sturdy construction, diesel generators can provide uninterrupted power supply for extended periods. This makes them particularly suitable for critical applications such as hospitals, data centers, and construction sites, where power outages can have severe consequences.

One of the major advantages of diesel generators is their fuel efficiency. Unlike gasoline generators, diesel generators consume less fuel for the same amount of power output. This not only reduces operating costs but also ensures a longer runtime without the need for frequent refueling. Additionally, diesel fuel is generally more widely available than gasoline, making diesel generators a convenient choice for remote locations or areas with limited access to fuel stations.

Noise reduction is another significant aspect of diesel generators. Compared to their gas-powered counterparts, diesel generators are generally quieter during operation. This is due to their lower RPM and advanced noise reduction technologies. The reduced noise levels make diesel generators suitable for various applications, including residential use, as they cause less disturbance to nearby residents or workers.

To derive maximum benefit from a diesel generator, it is crucial to conduct a thorough product comparison. By comparing different models and brands, customers can identify the best generator to suit their power requirements and budget. Factors to consider during the comparison process include power output, fuel efficiency, noise levels, maintenance requirements, and additional features such as automatic start/stop functionality or remote monitoring capabilities.

In conclusion, diesel generators offer a reliable and efficient source of power for numerous applications. With their durability, fuel efficiency, and noise reduction capabilities, diesel generators are an attractive choice for those seeking a dependable power supply. However, it is essential to conduct a product comparison to ensure the generator meets specific requirements. By making an informed decision based on the individual needs and considering various factors, customers can invest in a diesel generator that delivers optimal performance and longevity. Don't miss out on the advantages of diesel generators - start comparing products today and find the perfect generator for your needs.