The 10 Best Offers for Diesel Generators - April 2025
Last updated: 26. April 2025
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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 | Manufacturer | 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.
Senci
- Coupled with superior quality Senci alternator.
- Electric start with 3 in 1 display for Voltage, Frequency and Hour.
- Unique muffler with spark arrestor, lower noise and more environmentally friendly.
- Low oil alert shuts down engine automatically when low oil is detected.
- Large 18L fuel tank
| Colour | Manufacturer | Weight |
| Red,black,silver,teal | Senci | 117 kg |
£1,29000
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.
- Neilsen Bde3500e Diesel Generator CT1848
- Brand : Neilsen
- Product type: ELECTRICITY GENERATOR
- Color: Black
| Colour | Manufacturer | Weight |
| Red | Neilsen | 96 kg |
£1,00000
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.
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 | Manufacturer | Weight |
| Black | T-Mech | 154 kg |
£1,12999
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.
- Advanced Performance: The new and improved Warrior model features increased power and a fully compliant EU5 standard engine with a brushed copper alternator, ensuring steady motor speed for reliable performance at 5500 maximum watts and 5000 running watts for high power
- Enhanced Convenience: Equipped with a range of features including Automatic Voltage Regulator (AVR) for smooth output monitoring, Wireless Remote Start, and 3-in-1 Intelli Voltmeter for easy operation and control.
- Quiet and Durable: Enclosed in a soundproof canopy with chip-resistant matt finish, the generator's heavy-duty industrial frame provides full protection. Anti-vibration mountings ensure smooth operation, while the key start facility adds convenience.
- Long-Lasting Run Time: With a fully fuelled 16-litre tank, this Warrior generator can run for up to 12 hours at 50% load, perfect for a variety of applications including domestic, construction, catering, and industrial use.
- Ultimate Portability: Featuring wheels for easy transport and a remote start function, this Warrior generator is designed for maximum convenience whether you're on-site or at home. Fitted with a 12v battery charging outlet and 240v and 110v single-phase output sockets for added versatility.
| Colour | Manufacturer | Weight |
| Copper | Warrior Power Equipment | - |
£1,39999
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
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 | Manufacturer | Weight |
| Orange,black | maXpeedingrods | 21 kg |
£54999
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.
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 | Manufacturer | Weight |
| Orange | AIVOLT | 12 kg |
£26999
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.
Briggs & Stratton
- Quiet and fuel efficient 79cc OHV petrol engine produces 2400 starting watts and 1800 running watts in a compact design
- The inverter technology produces smoother power. This means you can safely recharge and power your sensitive electronics such as laptops, smartphones and gaming systems
- 3.8 litre fuel tank for up to 8 hours of continuous operation at 25 percent load
- Automatically adjusts engine speed based on the items you're powering. Quiet Power Technology further reduces noise, fuel consumption and emissions
- At 58dB operating volume, this portable generator is quieter than a normal conversation. (Sound levels may vary based on proximity and location; measured at ¼ load at 7 meters from control panel side)
- Two 230V household sockets, one 12V DC charging outlet, and two 5V USB port offer enough flexibility to power an extensive combination of lights, laptops, blenders, personal electronics and more
- CO Guard Carbon Monoxide Shutdown. Advanced Detection. Added Protection
- An H-handle design lets one person easily carry the light generator when needed. It also allows two people to conveniently share the load. The optional wheel kit makes transport even easier
- This petrol generator requires 0.5 litre SAE30 4-stroke oil for the engine. Not included in the box, please buy separately
| Colour | Manufacturer | Weight |
| Grey | Briggs & Stratton | 22.8 kg |
£82999
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.
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 | Manufacturer | Weight |
| Orange/Black | maXpeedingrods | 26 kg |
£33999
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.
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 | Manufacturer | Weight |
| 9200hdes-1/3 Atsr | K&S Könner&Söhnen | 168 kg |
£1,44400
General information about Diesel Generators:
Understanding Diesel Generators: A Comprehensive Overview
Introduction to Diesel Generators
Diesel generators play a crucial role in powering various industries, homes, and establishments worldwide. They are reliable and efficient sources of electrical energy, especially in areas without access to a stable electricity grid. These generators employ diesel fuel combustion to generate electrical power, making them ideal for both backup and primary power supply.
Overview of Diesel Generators
Diesel generators consist of three primary components: an engine, an alternator, and a control panel. The engine is responsible for converting the potential energy stored in diesel fuel into mechanical energy. This energy is then used to power the alternator, which converts it into electrical energy. The control panel manages the entire operation of the generator, including starting, stopping, and regulating the power output.
Advantages of Diesel Generators
Diesel generators provide numerous advantages, making them a popular choice for power generation. Firstly, they offer high energy density, meaning they produce a considerable amount of electrical energy per unit of diesel fuel. This makes them particularly efficient, cost-effective, and suitable for extended periods of use. Furthermore, diesel fuel is more readily available and easily accessible compared to other fuel types, ensuring a constant fuel supply for the generator.
Moreover, diesel generators are renowned for their durability and reliability. The combustion process within the generator is not subject to spark plugs or ignition systems, reducing the risk of malfunctions. These generators are also designed to handle heavy loads without overheating, making them suitable for a wide range of applications. Lastly, their low maintenance requirements and longer lifespan contribute to their appeal and economic viability.
Applications of Diesel Generators
Diesel generators find extensive use in various sectors and situations where a stable power supply is essential. Industries, such as manufacturing, construction, and mining, frequently rely on diesel generators to meet their power requirements. These generators are also utilized in residential areas, commercial buildings, and hospitals, providing backup power during outages or serving as the primary power source in remote locations.
Conclusion
In summary, diesel generators are highly efficient, durable, and versatile power sources widely used across industries and locations. Their ability to provide a steady supply of electrical energy, regardless of the availability of an electricity grid, makes them indispensable for numerous applications. With their long lifespan and relatively low maintenance needs, diesel generators have proven to be a reliable and cost-effective solution for meeting various power demands.
* 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.
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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.
** "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.