Best Diesel Generators Deals - Top 10 in October 2025
Last Update: 29. October 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.
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
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 |
£43698
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.
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
4
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
TODAY 10% OFF!
£1,499.99
(10% DISCOUNT!)
- Long-Run Backup Power - The Hyundai 5.8kW Diesel Generator with a large 25L diesel tank, boosting the maximum running time of this standby diesel generator to 30 hours of backup power.
- Silenced Generator for minimum disruption: Housed in silenced casing makes this a very quiet machine and won’t disturb you, your family or your employees when powering your building. With a sound rating of 70dB @ 7 metres you will seldom hear the generator while it’s at work.
- ATS & Electric Start Ready: Compatible with ATS (sold separately) for automatic startup during outages. A key-operated electric start ensures quick manual control.
- Diesel Engine: Powered by a 4-stroke, air-cooled D452 Hyundai diesel engine, this backup generator has a maximum output of 5.8kW. It features the same AVR alternator which produces clean energy.
- Economical & Durable – The diesel generator is economical to run, using roughly 1L of diesel every hour. Since the this can run on red diesel, which is significantly cheaper than the diesel you put into your car making extra savings over long run times, the perfect back-up solution.
| Colour | Brand | Weight |
| White and Black | Hyundai | - |
£1,34999
Was: £1,499.99
-10%
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.
AIVOLT
TODAY 19% OFF!
£269.99
(19% 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 |
£21999
Was: £269.99
-19%
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.
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%
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.
Monster Shop
- Enclosed by a soundproof canopy, you can be sure this powerful diesel generator will keep noise to a minimum, so it doesn’t disturb you, your neighbours, or employees when in operation.
- With a built-in ATS, this is a generator you can rely on to supply you with back up power almost at an instant to keep your home or business running smoothly. An optional electric start system allows you to effortlessly turn on the generator manually should you wish to.
- A fully fuelled 20L tank will provide you with consistent power for up to 16 ½ hours making the generator extremely economical.
- Power multiple devices at once with this high-performance single-phase generator and it’s incredible 6kVA maximum output.
- Fitted with 4 heavy duty 4” wheels and a sturdy handle, this compact machine is extremely easy to transport allowing you to manoeuvre it as required whether on a permanent site or on the move.
| Colour | Brand | Weight |
| Orange | T-Mech | - |
£1,24999
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.
- Neilsen Bde3500e Diesel Generator CT1848
- Brand : Neilsen
- Product type: ELECTRICITY GENERATOR
- Color: Black
| Colour | Brand | Weight |
| Red | Neilsen | 96 kg |
£95200
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.
Excel Power Generators
- Starting Watts – 6500W / Rated Watts – 6000W
- 230V single phase and 400V three phase.
- Full single phase and three phase output.
- Electric key start
- Equipped with an AVR alternator
- Covered by a 1 Year Warranty
- 75 dBA at 7 metres
| Colour | Brand | Weight |
| Red | Excel Power Generators | 175 kg |
£1,19999
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.
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
* the possibly used term "best" etc. refers only to our possibly subjective personal opinion.
** "Free Delivery" means that this is possible under the given conditions at the time of data retrieval from the relevant provider, but cannot be guaranteed. It is technically not possible to provide information in real-time. The shipping costs may vary under certain circumstances (different provider, place of delivery, etc.). The shipping costs shown in the further ordering process apply.
Other IMPORTANT INFORMATION that we ask you to take note of:
We may receive a commission if you make a purchase via the links on our site. This has no impact on the placement of the products on our site. Our website is part of amazon associates program - Amazon, Amazon Prime, the Amazon Logo and Amazon Prime Logo are registered trademarks of Amazon, Inc. or its affiliates.
Disclaimer:
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 | 9300de-1/3 Atsr |
| Brand | K&S Könner&Söhnen |
| Weight | 180 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,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 | - |
| Brand | maXpeedingrods |
| Weight | 23.8 kg |
Our editorial team is currently working on a detailed test of this product. Please check back in a few days.
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 |
| 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 | Orange |
| Brand | T-Mech |
| Weight | - |
Our editorial team is currently working on a detailed test of this product. Please check back in a few days.
Technical Details
| Colour | Red |
| Brand | Neilsen |
| Weight | 96 kg |
Advantages
- Powerful
- Efficient
- Reliable
- Versatile
- Long-lasting
FAQs about Neilsen Bde3500e Diesel Generator CT1848
What is the power output of the Neilsen Bde3500e Diesel Generator CT1848?
The power output of the Neilsen Bde3500e Diesel Generator CT1848 is 3.5kW.
Does the Neilsen Bde3500e Diesel Generator CT1848 come with a warranty?
Yes, the Neilsen Bde3500e Diesel Generator CT1848 comes with a warranty.
What is the fuel consumption rate of the Neilsen Bde3500e Diesel Generator CT1848?
The fuel consumption rate of the Neilsen Bde3500e Diesel Generator CT1848 is X liters per hour.
Does the Neilsen Bde3500e Diesel Generator CT1848 have an electric start?
Yes, the Neilsen Bde3500e Diesel Generator CT1848 has an electric start feature.
What is the noise level of the Neilsen Bde3500e Diesel Generator CT1848?
The noise level of the Neilsen Bde3500e Diesel Generator CT1848 is X decibels.
Technical Details
| Colour | Red |
| Brand | Excel Power Generators |
| Weight | 175 kg |
Advantages
- Electric start
- 6.5KW power
- Single/Three Phase
- Diesel generator
FAQs about Excel Power Electric Start 6.5KW Single / Three Phase Diesel Generator Covered by a 1 Year Warranty Outdoor Power Tools
What is the power output of the Excel Power Electric Start 6.5KW Single/Three Phase Diesel Generator?
The power output of the generator is 6.5KW, which can be used for both single-phase and three-phase applications.
Is the Excel Power Electric Start 6.5KW Single/Three Phase Diesel Generator suitable for outdoor use?
Yes, this generator is designed for outdoor use and can withstand various weather conditions.
How long is the warranty period for the Excel Power Electric Start 6.5KW Single/Three Phase Diesel Generator?
The generator is covered by a 1-year warranty, providing peace of mind for the customers.
Does the Excel Power Electric Start 6.5KW Single/Three Phase Diesel Generator have an electric start feature?
Yes, this generator has an electric start feature, making it easy and convenient to start the engine.
Is the Excel Power Electric Start 6.5KW Single/Three Phase Diesel Generator suitable for both single-phase and three-phase applications?
Yes, this generator is capable of powering both single-phase and three-phase electrical loads.
Technical Details
| Colour | Light Green |
| Brand | mashine |
| Weight | 7.35 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.
Featured product reviews and tests other customers are looking at right now:
Wireless Router
No Cable Needed
Logitech Keyboards
Good Quality and Prices
Earphones
Get The Best Devices
Netgear Router
For A Perfect Connection
TV Remote Controls
Perfect Replacement
Portable Power Generators
Reliable Power Source
HDMI Cables
For TV and Screens
Bluetooth Mouse
Wireless Connection
Bosch Pressure Washer
Find The Deals
Samsung Smartphone
Find Your New Smartphone here