Hyundai HY25-4 25mm / 1” Portable 4-Stroke Petrol Water Pump
Availability: In stock
- A lightweight and portable petrol water pump.
- Powered by a Hyundai 99cc 4-stroke petrol engine with easy recoil start and a high power to weight ratio.
- Cast iron volute and impeller
- Rugged outer frame and carry handle make it easily maneuverable.
- Capable of pumping 85L/min through the 25mm (1”) inlet and outlet.
- Suitable for transferring clean and fresh water, with a total head of 14m and a suction head of 4m.
- Compact in size, it’s ideal for storing in a garden shed, van, or workshop.
- Perfect for irrigating the garden, pumping out a flooded areas or onboard a boat.
- Full UK spares backup to maintain your water pump for years to come.
- Covered by Hyundai 3 year platinum warranty.
The HY25-4 is one of the lightest and most portable 4-Stroke petrol water pumps on the market, weighing only 12kg it's easy to move around and store making it ideal for most domestic and professional applications such as transfering clean or fresh water from ponds, pools, hot tubs and flooded areas.
Powered by the 4-stroke easy pull start Hyundai 99cc Euro 2 petrol engine with excellent fuel consumption and exceptional performance. Adopting high quality ceramic mechanical sealing crucial to any water pump.
The HY25-4 is built to ensure a reliable performance and capable of transferring 85L/min and has a 25mm / 1" inlet and outlet. The pump body is made of light-weight but extremely strong aluminium alloy.
The pump has a total head of 14m and a maximum suction head of 4m. Please see the diagram below explaining the different meanings of head when used in reference to a water pump. The ‘head’ is also referred to as ‘lift’ by some manufacturers.
Housed within a rugged open frame, with a convenient carry handle, it's easy to move and store but this frame also provides protection from potential damage to the pump and engine itself.
Before using your pump, make sure you have your suction hose and layflat hose ready. The suction hose is used between the water source you are looking to move and the pump, and is more sturdy and strengthened to stop it being ‘sucked’ flat while in use. The layflat hose is used on the outlet of the pump and usually sits ‘flat’ - hence the name. Try to use the minimum amount of suction hose possible and place the pump as close to the water as you can.
Simply attach the strainer (the plastic ‘cage’ included with the pump), to the end of the suction hose, which prevents debris being sucked into the pump and causing damage to the impeller. Then, using the provided collars, attach the other end of the suction hose to the inlet on the pump. Use the other collar to attach your layflat hose and run it to then are you want the water to be discharged to.
This pump is self priming, however in order to create a vacuum and start the lifting process you need to fill the pump housing with water. You can do this by removing the the cap on the top of the pump casing and filling with fresh water, then simply follow the starting procedure in the manual to begin pumping. Ensure that there are no air leaks on the suction side, as this will prevent the pump from priming.
Engine Type Single cylinder, 4-stroke, air cooled petrol engine Engine Size (cc) 99.00 Fuel Tank (L) 0.80 Fuel Type Unleaded petrol Fully Assembled Dimensions L x W x H (mm) Unleaded petrol Noise Level (dB) 78.00 Maximum Power (kW) 1.1KW Starting Method Recoil Easy Pull Start Inlet (inches / mm) 1 / 25 Outlet (inches / mm) 1 / 25 Maximum Flow Rate (L/min) 85.00 Total Head (m) 14.00 Suction Head (m) 4.00 Dry Weight (kg) 85.00
Shipping & Delivery
Please Note: Delivery is FREE to mainland UK but Highlands and Islands will incur a surcharge.
In most cases, a product on our website will give you an indication of the current stock availability, but shipping is not uniform for all products. We maintain fantastic relationships with all of our suppliers and we aim to get products to customers within 3 business days of the order being taken. This availability is based on information from our suppliers and from sales and supply patterns. The availability information given is a guide only and not a guarantee as there are external factors that we may not have control over.
1500rpm machines or larger diesel gensets however are typically priced on application and all depend on the destination. We will be happy to quote on any large diesel generator and discuss your needs over the phone or via email.
Most orders placed before 12pm on a business day will be shipped from us on the same day provided the product is in stock. If you need to be certain an item is in stock and available, or if you need a lead time, it's worth calling our sales team on 01646 687 880.
Pricing for extended shipping areas like Northern Ireland, the Scottish Highlands and outlying Islands, Outer Hebrides, Channel Islands, Isle of Man, Scilly Isles, and other postcodes not included for free UK mainland delivery by our couriers can be obtained also by calling our offices.
Please note that the processing of a payment and acknowledgement email does not constitute a legally binding contact. In the case of mispricing, changes in stock quantity, or if we believe the machine will be misused, we reserve the right to cancel the order and provide a full refund.
N.B. Although the below chart is accurate, it does not apply to all products due to volumetric weights and specific postcode areas. Please call if you have any queries about shipping charges before you place an order on our website.
Carriage is also chargeable on all parts and items under £100 in value, and our sales team may contact you for after a sales order has been made if additional carriage surcharges need to be applied.
Please note that orders under £50 may incur an additional delivery cost, which we will notify you of soon after the order is placed.
Hyundai Power Equipment are able to track the progress of your order or provide you with a tracking number for delivery.
For more information on delivery and shipping, please visit our Customer Service page.
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