Best Diesel Power Generator Deals - Top 10 in April 2025
Last Update: 26. April 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.
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
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 | Brand | 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.
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 | Brand | Weight |
| Orange,black | maXpeedingrods | 21 kg |
£54999
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.
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 | Brand | Weight |
| Grey | Briggs & Stratton | 22.8 kg |
£82999
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.
Monster Shop
- With an ATS included, 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 12.5L tank will provide you with consistent power for up to 14 hours making the generator extremely economical.
- Power multiple devices at once with this high-performance three-phase generator and it’s incredible 5kVA maximum output.
- Fitted with 4 heavy duty 8” wheels and sturdy fold in/ out handles, this compact machine is extremely easy to transport allowing you to manoeuvre it as required whether on a permanent site or on the move.
- Built using powder coated steel, the frame is extremely strong and durable to protect the powerful 10HP engine. Although an open design, the generator is remarkably quiet at just 77dB at a 7m range.
| Colour | Brand | Weight |
| Black and Orange | T-Mech | - |
£1,14999
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.
Warrior Power Equipment
- 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 | Brand | Weight |
| Copper | Warrior Power Equipment | 168 kg |
£1,29999
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.
Excel Power
- Starting Watts – 6000W / Rated Watts – 5500W
- Three-phase (400V) and single-phase (240V)
- Electric key start
- Equipped with an AVR alternator
- 73 dBA at 7 metres
- 73 dBA at 7 metres
| Colour | Brand | Weight |
| Red/Black | Excel Power Generators | 164 kg |
£1,46999
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.
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 |
| Black | T-Mech | 154 kg |
£1,12999
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.
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
* 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 Power Generator 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 | 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 | 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 | 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 | Grey |
| Brand | Briggs & Stratton |
| Weight | 22.8 kg |
Advantages
- Portable
- Inverter
- Clean Power
- Ultra Quiet
FAQs about Briggs & Stratton 030801 Petrol Portable Inverter Generator PowerSmart Series P2400, 2400 Watt / 1800 Watt Clean Power, Ultra Quiet and Lightweight , Grey
What is the wattage of this generator?
The Briggs & Stratton 030801 Petrol Portable Inverter Generator PowerSmart Series P2400 has a wattage of 2400 watt/1800 watt clean power.
Is this generator quiet?
Yes, it is. The Briggs & Stratton 030801 Petrol Portable Inverter Generator PowerSmart Series P2400 is ultra quiet.
Is this generator lightweight?
Yes, it is. The Briggs & Stratton 030801 Petrol Portable Inverter Generator PowerSmart Series P2400 is designed to be lightweight.
What color is this generator?
The Briggs & Stratton 030801 Petrol Portable Inverter Generator PowerSmart Series P2400 is grey in color.
Technical Details
| Colour | Black and Orange |
| Brand | T-Mech |
| Weight | - |
Advantages
- Portable
- Diesel
- Electric Start
- Emergency Power
- Tool Kit
FAQs about Portable Diesel Generator Open Frame ATS Electric Start 5kVA Three Phase 10HP 6.3kW 230 / 400V Emergency Power AC DC Output Powder Coated Steel 12.5L Fuel Capacity 77dB 4 x 8" Wheels Tool Kit & Funnel
What is the power output of this generator?
This generator has a power output of 5kVA or 6.3kW.
What is the fuel capacity of this generator?
The fuel capacity of this generator is 12.5 liters.
Does this generator have an electric start?
Yes, this generator has an electric start feature.
What is the noise level of this generator?
The noise level of this generator is 77dB.
Does this generator come with wheels and a tool kit?
Yes, this generator comes with 4 x 8" wheels and a tool kit.
Technical Details
| Colour | Copper |
| Brand | Warrior Power Equipment |
| Weight | 168 kg |
Advantages
- Powerful
- Electric start
- Long run-time
- Quiet running
FAQs about Warrior 6.25kVa Diesel Generator – 186cc Engine, 5500 Max Watts, Electric Start, 16L tank with 12-hour run-time, Quiet Running at 68 dBA & Soundproof Canopy, AVR for Safe Running, Heavy-Duty Frame
What is the maximum wattage of the Warrior 6.25kVa Diesel Generator?
The Warrior 6.25kVa Diesel Generator has a maximum wattage of 5500 watts.
Does the generator have an electric start feature?
Yes, the Warrior 6.25kVa Diesel Generator comes with an electric start function.
How long can the generator run on a full tank?
The generator has a 16L tank and can run for approximately 12 hours on a full tank.
What is the noise level of the generator during operation?
The Warrior 6.25kVa Diesel Generator runs at a quiet 68 dBA.
Does the generator have an Automatic Voltage Regulator (AVR)?
Yes, the Warrior 6.25kVa Diesel Generator is equipped with an AVR for safe running.
Is the generator built with a heavy-duty frame?
Yes, the Warrior 6.25kVa Diesel Generator features a heavy-duty frame for durability.
Technical Details
| Colour | Red/Black |
| Brand | Excel Power Generators |
| Weight | 164 kg |
Our editorial team is currently working on a detailed test of this product. Please check back in a few days.
Technical Details
| Colour | Black |
| Brand | T-Mech |
| Weight | 154 kg |
Advantages
- Reliable
- Portable
- Electric Start
- Emergency Power
- Easy Transport
FAQs about Silent Diesel Generator Single Phase ATS 230V 6kVA 6500W 13HP 115V / 230V Electric Start Closed Frame Emergency Power 4 Portable Wheels Black Powder Coated Steel 20L Fuel Capacity Tool Kit & Funnel
What is the fuel consumption of this generator?
The fuel consumption of this generator is approximately 3.5 liters per hour.
Can this generator be used for sensitive electronic devices?
Yes, this generator is designed with a clean power output suitable for sensitive electronic devices.
Does the generator come with an automatic transfer switch (ATS)?
Yes, this generator is equipped with a Single Phase ATS for automatic power transfer.
What is the noise level of this generator?
The noise level of this generator is approximately 70 dB at a distance of 7 meters.
What is the warranty period for this generator?
This generator comes with a 1-year warranty for manufacturer defects.
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 Power Generator:
A diesel power generator is a reliable and efficient source of backup electricity. Whether you live in a remote area or simply want extra power during blackouts, a diesel power generator can provide the energy you need. In this article, we will discuss the benefits of diesel power generators, compare different models, and ultimately encourage you to consider investing in one.
Diesel power generators are known for their durability and long lifespan. Unlike gasoline generators, diesel generators are built to withstand heavy usage and can operate for extended periods of time. This makes them ideal for both residential and commercial use. Additionally, diesel generators require less maintenance compared to other types of generators, saving you time and money in the long run.
One of the main advantages of diesel power generators is their fuel efficiency. Diesel fuel has a higher energy density than gasoline, meaning it can generate more power from the same amount of fuel. This translates to lower fuel consumption and ultimately reduced operating costs. Furthermore, diesel is generally more readily available than other fuels, making it easier to replenish your generator's fuel supply.
When comparing diesel power generators, several factors should be considered. Firstly, you should determine the power output required for your specific needs. Generators come in various sizes and capacities, and it is essential to choose one that can handle the electrical load you expect. Secondly, pay attention to the noise level produced by the generator. Diesel generators tend to be quieter compared to gasoline ones, ensuring a more comfortable environment for you and your neighbors.
It is also important to assess the generator's reliability and safety features. Look for models with automatic shutdown capabilities in case of low oil pressure or high temperature. These features protect your investment by preventing potential damage or accidents. Additionally, consider the generator's portability and ease of use. Depending on your intended use, you may need a generator that is lightweight and easy to transport.
In conclusion, diesel power generators offer numerous advantages, including durability, fuel efficiency, and reliability. When choosing a generator, consider factors such as power output, noise level, safety features, and portability. By investing in a diesel power generator, you can ensure uninterrupted power supply during emergencies and enjoy peace of mind. Don't wait until the next blackout – get a diesel power generator today and experience the benefits firsthand.
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