• P1 P4000i 4kW Portable Inverter Generator (Hyundai Engine)
  • P1 P4000i 4kW Portable Inverter Generator (Hyundai Engine)
  • P1 P4000i 4kW Portable Inverter Generator (Hyundai Engine)
  • P1 P4000i 4kW Portable Inverter Generator (Hyundai Engine)
  • P1 P4000i 4kW Portable Inverter Generator (Hyundai Engine)
  • P1 P4000i 4kW Portable Inverter Generator (Hyundai Engine)
  • P1 P4000i 4kW Portable Inverter Generator (Hyundai Engine)
  • P1 P4000i 4kW Portable Inverter Generator (Hyundai Engine)

P1 Power Equipment P4000i 4000W Portable Inverter Generator (Powered by Hyundai; 2x 230V UK Sockets, 12V DC Battery Charger & USB Port; Oil & 2 Year Warranty Inc.)

Product Code: HY-P4000i

Ex VAT £ 665.00

Inc VAT £ 798.00

P1 Power Equipment P4000i 4000W Portable Inverter Generator (Powered by Hyundai; 2x 230V UK Sockets, 12V DC Battery Charger & USB Port; Oil & 2 Year Warranty Inc.)


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P1 P4000i 4kW Portable Inverter Generator (Hyundai Engine)

The P1 Power Equipment P4000i generator is specially designed for leisure use. If you're looking for an outstanding combination of power and portability at a great price, this model is perfect. It has a powerful and robust Hyundai engine for reliable performance.

Ideal Usage

This P1 inverter generator is specially designed for leisure use. It's suitable for powering household appliances, fridges, heaters, lights, televisions, laptops, tablets, mobile phones, air pumps and more. This makes it ideal for camping and caravanning.

It's fitted with a robust inverter board that can handle extreme inductive loads applied when using power tools with high start-up currents. It can also be used to power horseboxes. Plus it's a reliable backup power supply in case of an emergency, like a power cut.

Note: Inverter generators aren't suitable for continuous daily use or for use as an off-grid power supply. For heavy-duty commercial use, we recommend a conventional 3000 rpm petrol generator.

Generator Safety

Petrol generators should never be used indoors due to the risk of carbon monoxide poisioning. Please ensure you're fully aware of the dangers of operating a generator. You can see Hyundai's generator safety information here.

Comes With

  • 2 year domestic warranty or 1 year commercial warranty (see details here)
  • 600 ml of SAE 30 engine oil
  • Remote key fob
  • Oil filling jug
  • Spark plug spanner
  • Instruction manual

Best Features of the P1 P4000i Generator

  • Impressive performance thanks to the robust and powerful 225cc Hyundai petrol engine which produces a maximum output of 4000W and a continuous output of 3600W
  • 2x 230V sockets, a 12V DC battery charger and a USB port for powering multiple devices at the same time
  • Inverter technology produces a pure sinewave output, so the generator can safely power sensitive electronics like TVs and laptops without any risk of damaging or overloading them
  • Excellent portability thanks to the compact design, heavy-duty rear wheels, telescopic front handle, and front and rear molded handles
  • Low-noise engine technology for ultra-quiet operation. This P1 quiet generator produces only 58 dB(A) at 7m, so you won't disturb anyone around you.
  • Cost-effective - this P1 petrol generator is a budget-friendly price, economical to run and has low maintenance requirements
  • ECO mode lowers the engine revs to match only the load being applied, which in turn increases the fuel economy, lowers the noise produced and extends the engine lifespan
  • Digital overload protection shuts the generator down if devices exceeding 4000W start-up or 3600 W continuous output are plugged in to prevent any damage
  • Low oil shutdown turns the generator off if the engine oil level drops below a safe amount to prevent any damage
  • Electric push-button start for quick and easy start-up of this P1 4000W generator. It also comes with a remote key fob, so you can control the generator without having to touch it. Plus it has easy-start recoil backup.
  • Full LED display shows the voltage, frequency and hour count, so you can easily monitor how the generator is performing at a glance

Technical Spec.

  • Model: P4000i
  • Generator type: Inverter
  • Sockets: 2x 230 V (for standard UK 13 A 3-pin plug)
  • Max. output: 4000 W / 4 kW
  • Continuous output: 3600 W / 3.6 kW
  • DC output: 12 V 8 A and 5 V 2.1/1 A USB
  • Run time at 50 % load: 12 hr
  • Voltage regulation method: Alternator
  • Phase: Single
  • Engine model: Hyundai IC225D
  • Engine type: 4-stroke air-cooled
  • Engine size: 225 cc
  • Power output: 5.17 hp
  • Rated speed: 3600 rpm
  • Frequency: 50 Hz
  • Max./continuous current: 15 A
  • Power factor: 1 Cosφ
  • No. of cylinders: 1
  • Start method: Electric
  • Fuel type: Petrol
  • Fuel capacity: 12 l
  • Engine oil type: 10w40 or 15w40
  • Engine oil capacity: 600 ml
  • Dimensions (L x W x H): 550 x 400 x 610 mm
  • Net weight: 48 kg
  • Gross weight: 54 kg
  • Noise level at 7 m: 58 dB(A)

Hyundai Warranty

  • 3 year domestic warranty or 1 year commercial warranty (see details here)
  • We’re an official Hyundai Dealer and Service Agent


Delivery Info


FREE Delivery

Free UK Delivery
Over £99*

Next Day Delivery

Next Working Day Delivery
Order by 3pm*

1 Hour Time Slot

1 Hour Time Slot
via text alert

Delivered 6 Days a Week

Delivery 6 Days a Week
Monday - Saturday



FREE Delivery

to UK mainland when you spend £99 (up to 30kg).

You can test your delivery postcode at the first step of the checkout.

A surcharge applies for orders that include a 'bulky item' or where the total weight is over 30kg. A 'bulky item' will highlight itself on the product description page. A surcharge also applies for orders that are being delivered to a UK offshore postcode. This surcharge is discounted when you spend over £99.


Order by 3pm for Next Working Day Delivery

Our working days are Monday - Friday.

Only for in-stock items (on the product description page it will display either 'next day' or '3-4 days dispatch'). Order by 2pm for items that trigger a 'freight rate' surcharge at the checkout (e.g. heavy generators and table saws) as well as anything that includes gas canisters (e.g. Paslode nails). Please allow an extra day for Scottish Highlands postcodes. Freight items can not be delivered offshore.


Small Parcel Cheaper Delivery - £2.99

Untracked 4-7 working day delivery (small parcels).

We can now provide low-cost delivery for certain small parcels of up to 2kg for orders under £99. This service is provided by Royal Mail (currently on a 4-7 working day service if in stock). It's applicable on some accessories from Bosch, Festool, DeWalt, Trend, Fein and Makita. Some compact 18V body only tools will also qualify. This service won't accept any combustible items such as canisters, cartridges or lithium batteries.


NEW & Improved Secure Deliveries

PIN code verification at your doorstep

We've improved the security of our deliveries to you with DPD's PIN code verification system. We will be using this service on most orders to ensure your parcel gets to you securely.

You will receive a PIN code via text and/or email which you must recite to the delivery driver on arrival. If someone is receiving the parcel on your behalf, remember to pass on the code to them. The driver can also resend the PIN code to the original contact on arrival if required. This service requires a mobile phone number with your order so please ensure you provide one to take advantage.


- Our deliveries are very easy to track, plus you'll get a handy 1 hour delivery window so you know when to expect your items. You'll receive a tracking number with your 'order dispatched' email.

- Your VAT invoice is always in the box with your goods.

- Your goods are always securely packaged when leaving our warehouse. We strive to ensure your goods reach you in prime condition.

Our main courier is DPD. We use DPD for the vast majority of our deliveries. APC and TNT handle other specific types of deliveries for us. In poor weather conditions our couriers may experience delays that are out of our control, however we will help you in every way possible to track delivery progress.

- Delivery to construction/job sites is possible, but done so at your own risk. Our service can deliver to an address, but we can't guarantee delivery to a specific person or location at the address. For the best outcome, please provide detailed courier instructions and a contact number that we can pass on to the courier.

- Delivery to 'safe place' is not available for most orders, someone must be present to receive your delivery. We do this to ensure our couriers deliver to the right person at the right address, to ensure your goods are not lost or stolen. Particularly as most orders are of high value.


UK Standard Delivery (Goods below 30kg)

UK Mainland
UK standard - next day - orders over £99 FREE
UK standard - next day - orders below £99 £6.99
UK standard - next day before noon - orders over £99 £8.99
UK standard - next day before noon - orders below £99 £15.99
Scottish Highlands
Scottish Highlands - 1-2 days - orders over £99 FREE
Scottish Highlands - 1-2 days - orders below £99 £6.99
UK Mainland - Saturday Premium
UK Saturday premium - orders over £99 £24.00
UK Saturday premium - orders below £99 £30.99
UK Offshore

Northern Ireland, Scottish Islands & other UK Islands

UK offshore - 1-2 working days - orders over £99 £7.00
UK offshore - 1-2 working days - orders below £99 £13.99
Channel Islands

Channel Islands

Channel Islands - 2 working days - orders over £99 £15.00
Channel Islands - 2 working days - orders below £99 £21.99
Order includes Paslode nails/gas:
Channel Islands - 3-5 working days - orders over £99 Unavailable
Channel Islands - 3-5 working days - orders below £99 Unavailable


UK Freight Delivery (Goods over 30kg)

UK Mainland
UK freight - 1-2 working days £25.00
Scottish Highlands & UK Offshore
Highlands freight - 2/3 days £100.00 Offshore freight Unavailable

It's unsafe to lift anything above 30kg, so a pallet is required to transport these goods.


Want Faster Delivery?

UK - Next Working Day Before Noon (*1pm for some remote postcodes) for in-stock items and only on weekdays. Orders placed after 3pm on Thursday are received on Monday morning. Orders placed after 3pm on Friday are received on Tuesday morning.

UK - Saturday Premium for in-stock items ordered between 3pm Thursday - 3pm Friday to be received on Saturday. No Sunday deliveries.


Click & Collect - Glasgow Store

  • Reserve your items by ordering on our website via our click and collect option (item must be in stock to collect)
  • Please wait until we've contacted you with a time slot so we can ensure social distancing (collection usually ready 1 hour after order placed)


Want to collect in Glasgow? Reserve online and pick up at your convenience:

1. Add any in-stock items to your basket on our website

2. Select 'Collection - Glasgow Store' at the checkout

3. Enter your name, number, email & invoice address

4. Collect and pay in store (within 2 business days)


Delivery to Europe - Ireland Only

Currently unavailable.

Delivery is available to Ireland. We're currently unable to ship items above 30kg. You must place your order with VAT included. We will then refund the VAT upon confirmation of your VAT number. Email your VAT number to sales@kelvinpowertools.com immediately after placing your order.

Irish Republic
2-day delivery £12.00


All of our delivery charges are as per the costs from the courier. We always strive to improve on these.

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