Best Diesel Generators Deals - Top 10 in June 2025
Last Update: 25. June 2025
1
Best Choice
Our rankings are created by artificial intelligence (AI) from the algorithmic analysis of hundreds of thousands of customer reviews on products, brands, the level of service of the retailers, as well as popularity trends and much more. The ranking reflects our opinion and should be a good starting point for your purchase.
Hyundai
- Long-Run Backup Power—This model features a 25L fuel tank that can provide up to 30 hours of runtime at 1L/hour, ideal for extended power outages and workshop backup.
- Reliable Hyundai Diesel Engine – Powered by the D452 4-stroke, air-cooled engine with 5.8kW max output, perfect for keeping essential appliances and tools running.
- ATS & Electric Start Ready – Compatible with ATS (sold separately) for automatic startup during outages. A key-operated electric start ensures quick manual control.
- Produces a Quiet Operation—It is housed in a silenced enclosure, with noise levels as low as 70dB @ 7m, making it suitable for residential or business environments.
- Economical & Durable – Runs on red diesel for cost savings and includes a 1-year / 1,000-hour Hyundai warranty with full UK parts backup.
| Colour | Brand | Weight |
| White and Black | Hyundai | - |
£1,49999
2
Best Value
Our rankings are created by artificial intelligence (AI) from the algorithmic analysis of hundreds of thousands of customer reviews on products, brands, the level of service of the retailers, as well as popularity trends and much more. The ranking reflects our opinion and should be a good starting point for your purchase.
maXpeedingrods
TODAY 21% OFF!
£549.99
(21% 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 |
£43699
RRP: £549.99
-21%
3
Our rankings are created by artificial intelligence (AI) from the algorithmic analysis of hundreds of thousands of customer reviews on products, brands, the level of service of the retailers, as well as popularity trends and much more. The ranking reflects our opinion and should be a good starting point for your purchase.
- 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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Our rankings are created by artificial intelligence (AI) from the algorithmic analysis of hundreds of thousands of customer reviews on products, brands, the level of service of the retailers, as well as popularity trends and much more. The ranking reflects our opinion and should be a good starting point for your purchase.
AIVOLT
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 |
£26999
5
Our rankings are created by artificial intelligence (AI) from the algorithmic analysis of hundreds of thousands of customer reviews on products, brands, the level of service of the retailers, as well as popularity trends and much more. The ranking reflects our opinion and should be a good starting point for your purchase.
maXpeedingrods
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 |
£33999
6
Our rankings are created by artificial intelligence (AI) from the algorithmic analysis of hundreds of thousands of customer reviews on products, brands, the level of service of the retailers, as well as popularity trends and much more. The ranking reflects our opinion and should be a good starting point for your purchase.
Excel Power
- Starting Watts – 2300W / Rated Watts – 2000W
- Recoil Start with low oil level protection
- AVR Controlled
- Large 15L fuel tank
- 2 x 13A 240V UK 3-pin sockets
- Covered by a 2 Year Warranty
| Colour | Brand | Weight |
| Red/Black | Excel Power Generators | 36 kg |
£19999
7
Our rankings are created by artificial intelligence (AI) from the algorithmic analysis of hundreds of thousands of customer reviews on products, brands, the level of service of the retailers, as well as popularity trends and much more. The ranking reflects our opinion and should be a good starting point for your purchase.
Champion Power Equipment
FREE delivery**
- Superior power & features - Our Champion Power Equipment 92001i Range of Invertor Generators offer both superior power and outstanding performance. These Inverters are offered in multiple fuel types, are Super-Lightweight and are packed with many great features including True Sine Wave Technology, EZ Start, LED Indicators, , Parallel Connectability, Multiple Outlets and USB Charging
- Super lightweight & ultra quiet operation - Weighing in at only 17.6Kg, and only 44 x 28.5 x 44.5cm in size, the Mighty Atom is the World's lightest 2kW Inverter Generator meaning that it is both extremely lightweight and portable. The device is also extremely quiet during operation at only 58 dBA.
- Reliable champion 2200w petrol engine - The Invertor Generator has an EZ Start and comes with a 2200 Maximum Watt (1900 Running Watts) 79cc Petrol Engine that will run up to 10.5 hours on a 4.0 Litres full tank (at 25% load). There is also a handy LED Indicator and Economy Mode to save on fuel as well as an Automatic Oil Shut Off Sensor and 500ml Oil Capacity.
- True sine wave invertor technology - This technology makes this generator ideal for sensitive electronics such as computers, laptops and TV. Perfect for your next camping trip or powering small household items like fridges/freezers, power tools, lighting units & garden equipment. This inverter has parallel capability allowing you to pair up with other Champion Inverters using an optional Parallel Kit.
- Includes power outlets & usb adapter - Included with the device are 2 covered 240V 13A Power Outlets and a handy 12v DC USB Adapter you can use to power your phone, laptop, tablet, or similar device. The Parallel Kit (Sold Separately) allows you to pair this up to another Champion inverter for double the power.
| Colour | Brand | Weight |
| Yellow,black | Champion Power Equipment | 17.6 kg |
£39999
8
Our rankings are created by artificial intelligence (AI) from the algorithmic analysis of hundreds of thousands of customer reviews on products, brands, the level of service of the retailers, as well as popularity trends and much more. The ranking reflects our opinion and should be a good starting point for your purchase.
AIVOLT
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 |
£37993
9
Our rankings are created by artificial intelligence (AI) from the algorithmic analysis of hundreds of thousands of customer reviews on products, brands, the level of service of the retailers, as well as popularity trends and much more. The ranking reflects our opinion and should be a good starting point for your purchase.
GVILTY
- High-end Material&Process The diesel engine body is made of aluminum alloy with fast heat dissipation, low oil temperature, lightweight, and long-term use. The body adopts the shot blasting process, the bolts adopt the color galvanizing process, and the wind cover of the tank adopts the plastic spraying process to make it more durable and provide conditions for it to exert its powerful power.
- Strong Power: The full-copper engine with a high power of 2200w and a rotating speed of 3000r/min provides you with strong power and ensures that your work can be completed quickly and easily.
- Good Heat Dissipation Effect: The forced air cooling system and heat dissipation holes can reduce the temperature of the engine in time, prolong the service life and reduce potential safety hazards.
- Low Noise: High-quality muffler can effectively reduce noise (75 dB), protect your hearing and provide you with a comfortable and quiet working environment.
- Large Capacity Tank: The fuel tank capacity of the diesel engine is 126.8oz, which can support you to work for a long time without the need for refueling frequently to improve your work efficiency. An oil tank with a strong seal is not easy to leak oil and cause waste.
| Colour | Brand | Weight |
| One Color | GVILTY | 50 g |
£44240
10
Our rankings are created by artificial intelligence (AI) from the algorithmic analysis of hundreds of thousands of customer reviews on products, brands, the level of service of the retailers, as well as popularity trends and much more. The ranking reflects our opinion and should be a good starting point for your purchase.
Excel Power
- Starting Watts – 3200W / Rated Watts – 3000W
- Recoil Start with low oil level protection
- Inverter Generator – (pure sine wave power)
- Durable X Configuration Steel Tubular Frame
- 11L fuel tank
- 1 x 13A 240V UK 3-pin sockets
- Covered by a 2 Year Warranty
| Colour | Brand | Weight |
| Red/Black | Excel Power Generators | 29 kg |
£29999
* the possibly used term "best" etc. refers only to our possibly subjective personal opinion.
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More information and FAQs about the featured Diesel Generators in this comparison:
Technical Details
| Colour | White and Black |
| Brand | Hyundai |
| Weight | - |
Our editorial team is currently working on a detailed test of this product. Please check back in a few days.
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 | 9200hdes-1/3 Atsr |
| Brand | K&S Könner&Söhnen |
| Weight | 168 kg |
Our editorial team is currently working on a detailed test of this product. Please check back in a few days.
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.
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 | Red/Black |
| Brand | Excel Power Generators |
| Weight | 36 kg |
Our editorial team is currently working on a detailed test of this product. Please check back in a few days.
Technical Details
| Colour | Yellow,black |
| Brand | Champion Power Equipment |
| Weight | 17.6 kg |
Advantages
- Lightweight
- Portable
- Quiet
- True Sine Wave
- Easy to start
FAQs about Champion Power Equipment 92001i 2200 Watt Petrol Portable Inverter Generator - 240V, 79cc Engine, 4.0L - The Mighty Atom - Super Lightweight, True Sine Wave, EZ Start, Ultra Quiet
What is the running wattage of this generator?
The Champion Power Equipment 92001i has a running wattage of 1800 watts.
How much does the generator weigh?
The generator weighs approximately 44 pounds, making it super lightweight and portable.
Is the generator suitable for sensitive electronic devices?
Yes, the generator provides a true sine wave output, making it safe for use with sensitive electronics.
Does the generator have an electric start?
Yes, the Champion Power Equipment 92001i features an easy start with push-button electric start.
How loud is the generator during operation?
The generator is ultra quiet, producing noise levels of around 53 decibels, ideal for camping or other quiet environments.
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 | One Color |
| Brand | GVILTY |
| Weight | 50 g |
Our editorial team is currently working on a detailed test of this product. Please check back in a few days.
Technical Details
| Colour | Red/Black |
| Brand | Excel Power Generators |
| Weight | 29 kg |
Our editorial team is currently working on a detailed test of this product. Please check back in a few days.
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.
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