--- product_id: 409081132 title: "LONGRUN 12V DC Water Pump, 4.5L/Min Self Priming Diaphragm Water Pump,85 Psi High-Pressure for Caravan Camper Boat Shower Lawn Garden" brand: "longrun" price: "€ 87.86" currency: EUR in_stock: true reviews_count: 13 category: "Longrun" url: https://www.desertcart.pt/products/409081132-longrun-12v-dc-water-pump-4-5l-min-self-priming store_origin: PT region: Portugal --- # 12V DC power 4.5L/min flow rate 85 PSI max pressure LONGRUN 12V DC Water Pump, 4.5L/Min Self Priming Diaphragm Water Pump,85 Psi High-Pressure for Caravan Camper Boat Shower Lawn Garden **Brand:** longrun **Price:** € 87.86 **Availability:** ✅ In Stock ## Summary > 💧 Pump up your flow, not your worries! ## Quick Answers - **What is this?** LONGRUN 12V DC Water Pump, 4.5L/Min Self Priming Diaphragm Water Pump,85 Psi High-Pressure for Caravan Camper Boat Shower Lawn Garden by longrun - **How much does it cost?** € 87.86 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.pt](https://www.desertcart.pt/products/409081132-longrun-12v-dc-water-pump-4-5l-min-self-priming) ## Best For - longrun enthusiasts ## Why This Product - Trusted longrun brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Smart Safety:** Auto shut-off at 85 PSI prevents overload and extends pump life. - • **Versatile Use:** Perfect for caravans, boats, gardens, and outdoor showers—your all-in-one water solution. - • **Durable Performance:** Premium copper motor coils resist burnout for long-lasting reliability. - • **Effortless Installation:** Quick plug design for seamless setup—get running in minutes. - • **Whisper-Quiet Operation:** Soft rubber mounts minimize vibration noise—work or relax without distraction. ## Overview The LONGRUN 4.5L/min 12V DC water pump delivers high-pressure water at 85 PSI with smart overvoltage protection and a durable copper motor. Designed for easy installation and quiet operation, it’s ideal for caravans, boats, gardens, and outdoor setups, ensuring reliable, efficient water flow wherever you need it. ## Description Product Description How to use the Longgrun membrane spray pump? The LONGRUN water pump is a portable device and can be used in various household applications. These pumps are used to pump large amounts of water from one place to another. The main purpose of a water pump is versatile. A quality pump can be perfect for draining water from a low flooded region, filling the bath, circulation of pesticides or other fertilisers. Connect the water pump to the inlet and outlet pipes. Make sure that the inlet/outlet line and the pump are firmly connected to each other so that no air can penetrate, otherwise this leads to low pressure or water leakage. Install a filter on the water inlet. Connect the pump to the mains supply. The power supply parameters must meet the input requirements of the engine. Turn on the power and the pump starts to run. 12 V DC water pump, widely used LONGRUN self-priming water pumps are a great addition to our lives, as they allow a variety of tasks in industry, agriculture and household. Our fresh water pumps are widely used for garden irrigation, lawn, shower, boat, caravan, motorhome taps etc. The advantage of the water pump from Longgrun Quick plug and surge protection LONGRUN pressure switch water pump is an electronic start switch that starts the pump when you need to work. When the maximum inlet/outlet value exceeds 85 PSI, the electronic switch will be switched off. When the water inlet and outlet value reaches the normal value, the work is resumed Better protection of the pump with your use of intimate integration. Copper motor Our water pressure plug-in pump uses a high quality brushed motor with pure copper coil that increases service life, reduces resistance in the working process and makes your work more efficient. If the motor of the water pump is not made of full copper wire. It will work unstable and easy to burn the engine, reduce the life of the pump. Warning The pump must not come into contact with flammable liquids. Do not immerse the pump in other liquids. Do not use the pump in an explosive environment. Keep away from children 4.5 L membrane pump. Technical data Box contents 4.5 L water pump x 1 hose clamp x 2 Power: 36 W Voltage: DC 12 V Flow: 4.5 L/min Power consumption: 3.0 Amp Working temperature range: 0~60°C / 32~140°F Adjustable cut off pressure: Max 85 PSI by default Inlet/Outlet: 1 cm hose connection Product size: : 16.2 x 8.5 x 5 cm Product weight: 1000 g Tip: Please clearly distinguish the direction of the water inlet and outlet before using it. Review: Fantastic for the money great pump - For the money great pump pretty quiet and very reliable. Review: Self primed perfectly. Was really happy with this pump and its operation. - Wired this up finally to our commercial trailer for the pot washing sink. Someone had used non-self printing on the trailer and they were not capable if the water container was on the ground. I’m guessing previous owner just sloshed cold in the sink as a work around or just used the hot supply and let it cool? The motor has a little weight to it (but no more than 0.5kg and is a solid construction - you see a lot of the cream coloured pumps advertised on here and they are so light you wonder how long they last. Hook up was easy although it’s a shame they don’t give you the other half of the wiring connector as a pig tail, so it was a cut and strip for me. Connection on the water was by flexible hose and jubilee clips (supplied). Shame it’s not a 1/2inch threaded connections as I do like to use real plumbing fittings but this works for its intended use as it’s not was drinking water. Operation for us is via a push button (as that is what was there before) but pump with auto switch when water demanded according to the small manual that comes with it. First test nothing came through and it took a few pump, stop, pump to fully prime. I opted for a run for 30 seconds the. Wait 30 seconds to avoid motor burn. But it did self prime without any interaction. Once primed it worked every time the button was pressed. Motor is quite noisy but not overly. We have it mounted inside a stainless steel sink cupboard with no door on it and on a trailer, so it has its own acoustic amplifier. We work outdoor festivals so it’s nice for us to hear a confirmation it’s working. Pumped height for us is around 1.25-1.5 meters from the ground and the hose length I had on there is about 2m to the pump and hose in the top opening of a standard 10ltr water container. Was really happy with this pump ## Features - 【LONGRUN 12V Water Pump】Voltage: 12V DC; Flow capacity: 4.5L/Min; Water pressure: 85PSI. Equipped with quick plug for easy installation. The pressure switch can automatically turn on and off when you turn the faucet on and off. - 【Smart Overvoltage Protection】Our 12V water pump is equipped with a overvoltage protection. When the maximum water pressure exceeds 85PSI, the caravan water pump would turn off automatically. When the water inlet and outlet return to normal, it will continue to work! - 【High Quality Copper Motor】Compared with other water pumps, our self priming water pump uses high quality brushed motors with pure copper coils, which are not easy to burn the motor and prolong the life of the product. - 【Low Noise】Our caravan water pump uses soft rubber mounts with 1 cm diameter support holes. When the high pressure water pump is working, it can effectively reduce the noise caused by vibration. - 【Wide application】The diaphragm water pumps can be widely used in life and agriculture. Including caravans, campers, boats, garden spray, lawns, outdoor showers, etc. - 【Note】All LONGRUN water pumps are rigorously tested before leaving the factory, including testing voltage and water pressure items. Therefore, a little water in this pump is normal and will not affect your use. If you have any questions with the pumps, please feel free to contact us. ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B09D7X7RJX | | Best Sellers Rank | 50,949 in Sports & Outdoors ( See Top 100 in Sports & Outdoors ) 23 in Boat Water Pressure Pumps | | Brand | Longrun | | Colour | Black | | Country of Origin | China | | Customer Reviews | 4.0 out of 5 stars 326 Reviews | | Flow Rate | 4.5 Litres Per Minute | | Item Dimensions L x W x H | 16.2L x 8.5W x 5H centimetres | | Manufacturer | LONGRUN | | Material | Rubber | | Maximum Lifting Height | 2.5 Metres | | Model Number | c90daa15-4cc0-4ba6-a396-c1f934621399 | | Part Number | c90daa15-4cc0-4ba6-a396-c1f934621399 | | Power source | Battery Powered | | Product Style | Diaphragm | | Product dimensions | 16.2L x 8.5W x 5H centimetres | | Style | Diaphragm | | UPC | 732122536104 | | Unit Count | 1.0 count | | Usage | RV, Caravan, Boat, RV, Garden, Irrigation, Agriculture | | Voltage | 12 Volts | ## Product Details - **Brand:** Longrun - **Colour:** Black - **Manufacturer:** LONGRUN - **Material:** Rubber - **Maximum flow rate:** 4.5 Litres Per Minute - **Maximum lifting height:** 2.5 Metres - **Power source:** Battery Powered - **Product dimensions:** 16.2L x 8.5W x 5H centimetres - **Style:** Diaphragm - **Voltage:** 12 Volts ## Images ![LONGRUN 12V DC Water Pump, 4.5L/Min Self Priming Diaphragm Water Pump,85 Psi High-Pressure for Caravan Camper Boat Shower Lawn Garden - Image 1](https://m.media-amazon.com/images/I/61M86bmuM8L.jpg) ![LONGRUN 12V DC Water Pump, 4.5L/Min Self Priming Diaphragm Water Pump,85 Psi High-Pressure for Caravan Camper Boat Shower Lawn Garden - Image 2](https://m.media-amazon.com/images/I/6158tuEYiRL.jpg) ![LONGRUN 12V DC Water Pump, 4.5L/Min Self Priming Diaphragm Water Pump,85 Psi High-Pressure for Caravan Camper Boat Shower Lawn Garden - Image 3](https://m.media-amazon.com/images/I/71yDGteTQ5L.jpg) ![LONGRUN 12V DC Water Pump, 4.5L/Min Self Priming Diaphragm Water Pump,85 Psi High-Pressure for Caravan Camper Boat Shower Lawn Garden - Image 4](https://m.media-amazon.com/images/I/71Fv8bAv+2L.jpg) ![LONGRUN 12V DC Water Pump, 4.5L/Min Self Priming Diaphragm Water Pump,85 Psi High-Pressure for Caravan Camper Boat Shower Lawn Garden - Image 5](https://m.media-amazon.com/images/I/71ZZBfaOgrL.jpg) ## Questions & Answers **Q: Could I use it to pump water out of a large fish tank into the sink?** A: Yes, as long as it is sitting outside the tank. **Q: Would this be able to pump water from a large rainwater tank in order to irrigate a poly tunnel soaker hose irrigation system?** A: I use the pump to transfer water from a pond to drain (2m3 per hour). If your hose irrigation system needs less then 2m3 per hour then it should fo the job. If your irrigation system a spray system not sure how far the spray will travel. **Q: Does this require pressure to work? Im intending to use it to pump stationary water from a barrel into another barrel. Thanks** A: The pump needs to connect to DC 12V power. It can use to pump stationary water **Q: What Power adaptor do I need to connect to this pump?** A: I used Canadian style cables with a 12 volt terminal connector. To battery ## Customer Reviews ### ⭐⭐⭐⭐⭐ Fantastic for the money great pump *by D***N on 3 July 2025* For the money great pump pretty quiet and very reliable. ### ⭐⭐⭐⭐⭐ Self primed perfectly. Was really happy with this pump and its operation. *by S***E on 11 May 2025* Wired this up finally to our commercial trailer for the pot washing sink. Someone had used non-self printing on the trailer and they were not capable if the water container was on the ground. I’m guessing previous owner just sloshed cold in the sink as a work around or just used the hot supply and let it cool? The motor has a little weight to it (but no more than 0.5kg and is a solid construction - you see a lot of the cream coloured pumps advertised on here and they are so light you wonder how long they last. Hook up was easy although it’s a shame they don’t give you the other half of the wiring connector as a pig tail, so it was a cut and strip for me. Connection on the water was by flexible hose and jubilee clips (supplied). Shame it’s not a 1/2inch threaded connections as I do like to use real plumbing fittings but this works for its intended use as it’s not was drinking water. Operation for us is via a push button (as that is what was there before) but pump with auto switch when water demanded according to the small manual that comes with it. First test nothing came through and it took a few pump, stop, pump to fully prime. I opted for a run for 30 seconds the. Wait 30 seconds to avoid motor burn. But it did self prime without any interaction. Once primed it worked every time the button was pressed. Motor is quite noisy but not overly. We have it mounted inside a stainless steel sink cupboard with no door on it and on a trailer, so it has its own acoustic amplifier. We work outdoor festivals so it’s nice for us to hear a confirmation it’s working. Pumped height for us is around 1.25-1.5 meters from the ground and the hose length I had on there is about 2m to the pump and hose in the top opening of a standard 10ltr water container. Was really happy with this pump ### ⭐ Do not buy *by J***Y on 24 September 2025* Bit noisy but worked well for 2 months then gave up the ghost completely. Don’t waste your money ## Frequently Bought Together - LONGRUN 12V DC Water Pump, Diaphragm Water Pump with Pressure Switch, 4.5L/Min 85 PSI High Pressure Self Priming Caravan Water Pump, Water Pressure Sprayer Pump for Caravan Camper Boat Lawn - Instant Hot Water Faucet Tap,Stainless Steel Electric Hot and Cold Mixer Water Heater Faucet with Digital Display, for Home Kitchen Facilities Sink (Flat Mouth 3000W) - YAYZA! LED Driver 12V 150W Power Supply, 240V AC to DC 12V Transformer 12.5A, Ultra Slim IP20 LED Adapter, Low Voltage Transformers for Indoor Constant Voltage Strip Cabinet Light CCTV Camera --- ## Why Shop on Desertcart? - 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016 - 🌍 **Shop Globally** — Access 737+ million products across 21 categories - 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price - 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members) - 🔒 **Secure Payments** — Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.pt/products/409081132-longrun-12v-dc-water-pump-4-5l-min-self-priming](https://www.desertcart.pt/products/409081132-longrun-12v-dc-water-pump-4-5l-min-self-priming) --- *Product available on Desertcart Portugal* *Store origin: PT* *Last updated: 2026-06-08*