Used Generators for Sale
If you’re looking for reliable used generators for sale in the UK, Powertech Generators provides professionally serviced second-hand generators, fully tested and ready for immediate delivery. Our extensive on-site stock includes trusted brands such as Perkins, JCB, Volvo, Cummins, Scania, Iveco, Pramac and more.
Every generator comes fully load tested and serviced for your peace of mind, ensuring you’re making a safe, informed purchase.
Wide Range Of Used Diesel Generators Ready for Delivery
Powertech Generators specialises in used diesel generators that undergo thorough servicing and rigorous load testing. Our expert engineers inspect each generator meticulously, ensuring they meet strict quality standards.
We provide detailed reports confirming each generator’s condition, performance, and reliability. Our generators are available for immediate dispatch, with fast delivery options across the UK to meet your urgent power needs.
Contact us by phone, email, WhatsApp, or our online enquiry form, and we’ll guide you to the best generator suited to your specific requirements and budget.
We Stock Some Of The Most Popular Generator Brands On The Market
At Powertech Generators, you can browse an extensive range of fully tested and certified diesel generators from renowned manufacturers. Our selection includes:
- Caterpillar: Known worldwide for reliable performance, longevity, and durability even in the most demanding environments.
- Perkins Generators: Trusted globally for their robust, efficient engines, providing cost-effective and reliable power.
- JCB: Built specifically for the construction industry suitable for both small-scale and large construction operations.
- Cummins: Globally recognised for high power output, superior reliability, and efficient fuel consumption.
Benefits of Choosing a Used Diesel Generator Over New
“Used Generators are a truely viable, cost saving option”
Our used Generators offer a tremendous cost saving option to purchasing new Generators. Often giving a 30%-50% reduction on purchase price.
The most significant factor in a Generator’s reliabilty is its run hours, if the run hours are low and the engine has been looked after then you can purchase a really great piece of power generation equipment at a significantly lower capital expendituire cost, when compared to an identical new version.
When selecting used Generators for us to market we focus mainly on its run hours and serviceable condition, only selecting the best examples. We then also conduct our own full services and Load Bank tests to ensure the Generator is performing to its designed capabilites.
Used Generators FAQs
How do I know if a used generator is reliable enough for my home or business?
Reliability comes down to engine hours, service history and proper testing. We fully inspect the engine, alternator and control panel and will load test the unit before it leaves the workshop.
What is the difference between a used standby generator and a used industrial generator?
A used standby generator is designed for emergency use when the main power fails. A used industrial generator is built for heavier and longer running conditions on sites like factories, farms or construction projects. The right choice depends on how often you expect to run it and the size of your load.
What size used generator should I buy?
Add up the power requirements of everything you want to run. This gives you a rough kW figure. Our team can then match you to a generator with the right kVA rating. Buying a used generator that is too small will cause overload issues. Buying one that is too large can lead to poor efficiency.
Is it safe to buy a used diesel generator instead of a new one?
Yes. A used diesel generator can be just as safe if it has been serviced, inspected and tested by a specialist. Many units have low hours because they were only used for backup. This makes them a cost effective alternative to new and used generators for sale on the general market.
Can you deliver a used generator to my site in the UK?
We offer UK wide delivery for used generators for sale. We can also arrange offloading and positioning on your site if needed.
What should I check before buying a used industrial generator?
Look at the hours, the service record, the condition of the alternator and the results of any load testing. It also helps to confirm the age of the engine, the emissions rating and the quality of the acoustic canopy. These factors affect long term running cost and reliability.
Will a used backup generator work with my existing switchgear?
In most cases yes. Modern used backup generators can be configured to work with existing changeover switches or automatic transfer switches.
How long can a used generator last once installed?
A well maintained used generator can run for thousands of hours. Diesel engines in particular have long working lives. If the unit has been serviced correctly and has relatively low hours when you buy it, you can expect many years of reliable performance.
Do used generators come with a warranty?
We offer a warranty on all of our used generators for sale. This covers key components such as the engine and alternator for a set period.
Are used standby generators suitable for businesses that rely heavily on power?
Yes. Many businesses choose used standby generators because they still offer strong performance at a lower cost. The most important factor is choosing a unit that has been professionally tested and sized correctly for your building.
How many hours is considered low for a used diesel generator?
Anything under a few hundred hours is generally considered low, especially for standby units that were only used during power cuts. Diesel engines are built for long life, so even a generator with higher hours can still be reliable if it has a full service history.
Are used generators suitable for constant or long running use?
Yes, but only if they are rated for prime or continuous power. Many used industrial generators were built for heavy duty use and can run for long periods. Standby models are designed for shorter running times, so it is important to choose the right type for your application.
Can a used generator support sensitive equipment like servers or medical devices?
It can, as long as the generator produces stable voltage and frequency. Many businesses use industrial generators for data centres, hospitals and telecom sites once the unit has been properly tested.
What maintenance does a used generator need after installation?
A used generator needs regular oil changes, fuel filter changes and cooling system checks. It should also be run under load at least once a month to keep it in good condition.
How quickly can you deliver a used generator in the UK?
Lead times vary, but we can arrange delivery within a few days if the generator is in stock. Used generators are often available much faster than new units because they do not require manufacturing or long factory lead times.
Customer Support and Jargon Free Advice From Industry Professionals
At PowerTech Generators, customer satisfaction is paramount. Our knowledgeable and friendly team are always available to answer your questions, offer expert guidance, and help you choose the right generator for your needs. If you’re unsure about what size, model, or power rating to choose, our staff provides clear, jargon-free advice tailored to your specific situation. We believe in delivering exceptional service before, during, and after your purchase.
Easy Buying Process - It Doesn’t Have To Be Difficult
Buying a used generator is straightforward and transparent. Feel free to browse our generators for sale here, where each product listing provides detailed descriptions, comprehensive technical specifications, and clear photographs.
We ensure all necessary details, such as generator age, previous usage, maintenance history, and load capacity, are clearly displayed. Once you find the used generator that suits your needs, fill in our simple contact form or reach out directly.
Our experienced team will promptly assist you, answer all your queries, and guide you through each step of the purchase process, ensuring a seamless and stress-free experience. If you cannot find the precise generator for sale that you are looking for, feel free to reach out to our team.
Why Choose Powertech Generators?
When you buy from Powertech Generators, you’re not just acquiring equipment—you’re partnering with professionals who genuinely understand and prioritise your power needs. We combine affordability, reliability, and efficiency to deliver tailored power solutions suited to businesses across the UK.
Each of our used generators is professionally tested, serviced, and guaranteed to deliver consistent, dependable performance immediately upon arrival. Our commitment to quality, customer care, and continuous improvement makes us the preferred choice for used generators in the UK.
Get in Touch & Speak To Our Team Today
Our UK-based facility is well-maintained and organised, providing you with the opportunity to inspect any generator for sale personally before making a decision. We encourage and welcome visits from potential buyers, allowing you to view our generator and stock firsthand. This direct approach ensures transparency and confidence in your purchase.
For reliable used generators that combine affordability with high performance, contact PowerTech Generators today.
Our dedicated team is ready to help you find the ideal used generator solution, ensuring you get dependable power exactly when you need it. Call, email, or message us today to discuss your requirements—we’re here to support your power needs effectively and professionally.