The Shurflo Revolution 4009 series 12v water pump delivers 11.3 litres per minute at 30 or 45psi, making it a reliable choice for caravans, motorhomes, and campervans with moderate to high water demands. This pump replaces the older 2095 series whilst fitting the same installation space, so upgrading doesn't require modifications to your existing setup. The four independent pump chambers work together to provide smooth, consistent water flow without the annoying pulsing you get with cheaper three-chamber designs.
What sets this pump apart is the adjustable pressure shut-off micro switch, which lets you fine-tune when the pump stops based on your system's needs. The dampened noise technology keeps operation quiet, whilst thermal overload protection prevents damage if the pump runs dry or overheats. Built with KTW-BWGL compliant wetted materials, it meets German drinking water standards and carries the E8 mark for electromagnetic compatibility, which matters if you're touring across Europe.
The pump's 3-inch diameter 12v DC motor handles the demands of multiple taps running simultaneously without losing pressure. It can self-prime from up to 2.7 metres below the pump level and weighs 1.8kg with dimensions of 205 x 125 x 106mm. One limitation to note is that you cannot use thread tape or sealing compounds during installation, as these can enter the pump and cause failure that won't be covered under the two-year warranty.
Shurflo RV 12v 11.3l Pump Features
- Four independent chambers deliver smooth, pulsation-free water flow
- Adjustable pressure shut-off switch for system customisation
- Thermal overload protection prevents damage from dry running
- Dampened noise technology for quiet operation
- Direct replacement for 2095 series in same mounting space
Specifications
- Flow rate : 11.3 litres per minute at 30psi (2.1 bar) or 45psi (3.1 bar)
- Power : 12v DC with 3-inch diameter motor
- Self-priming depth : up to 2.7 metres (9 feet)
- Dimensions : 205mm L x 125mm W x 106mm H
- Weight : 1.8kg
- Warranty : 2 years limited (excludes foreign material damage)
Frequently Asked Questions
The Revolution 4009 series features four independent pump chambers compared to the 2095's three chambers, providing smoother water flow with less pulsation. It includes dampened noise technology for quieter operation, an adjustable pressure shut-off micro switch for system customisation, and meets current European standards including E8 electromagnetic compatibility and KTW-BWGL drinking water compliance. Despite these upgrades, it fits in the same installation space as the 2095 series, making it a direct replacement without requiring plumbing modifications.
Yes, the Shurflo Revolution 4009 can run dry without immediate damage thanks to its thermal overload protection system. The built-in thermal protection automatically shuts down the pump if it overheats from running without water, preventing motor burnout. Once the pump cools down, it will reset and function normally. However, running any pump dry regularly will shorten its lifespan, so it's best to ensure your water tank has adequate supply and check for airlocks or blockages if the pump frequently runs without water flow.
Thread tape and sealing compounds can break apart during installation and enter the pump's internal chambers, where they interfere with the diaphragms and valves. This contamination causes premature failure and erratic operation. Shurflo specifically excludes foreign material damage from warranty coverage, meaning a pump failure caused by tape or sealant won't be repaired or replaced under the two-year warranty. The pump's fittings are designed to seal properly without additional compounds when tightened correctly to manufacturer specifications.
Rapid cycling occurs when the pump detects pressure loss and repeatedly tries to maintain system pressure. Common causes include small leaks in water lines or fittings, a faulty check valve, air trapped in the lines, loose tap connections, or a worn pressure switch. The Revolution 4009's design helps reduce cycling through its four-chamber configuration and adjustable pressure switch. To diagnose cycling issues, check all fittings for leaks, ensure taps are fully closed, bleed air from the system by running all taps, and inspect the pressure switch adjustment. Installing an accumulator tank can also reduce cycling frequency.
The Shurflo Revolution 4009 operates on 12v DC and draws power from your leisure battery. Your caravan's electrical system needs a stable 12-volt supply with proper grounding for the pump to function correctly. Most modern caravans and motorhomes are equipped to handle this pump's power requirements. Check that your leisure battery maintains voltage above 12 volts when the pump runs, ensure the pump circuit has an appropriate fuse, and verify all wiring connections are tight and corrosion-free. If your battery voltage drops significantly when the pump operates, you may need to charge or replace your leisure battery.
The Shurflo Revolution 4009 can self-prime from a maximum depth of 2.7 metres (9 feet) below the pump's mounting location. This spe
cification means the vertical distance between the water source and the pump body can be up to 2.7 metres. Most caravan and motorhome installations place the water tank closer than this limit. For optimal performance and faster priming, mount the pump as close to the water tank as practical. If your water source exceeds this distance, the pump will struggle to prime or may not draw water at all, requiring repositioning closer to the tank.
The Shurflo Revolution 4009 pump body includes threaded ports for inlet and outlet connections, but specific hose connectors and fittings depend on your plumbing system's requirements. Most UK caravan installations use 12mm flexible hose, which requires appropriate barbed or threaded fittings. You'll need to purchase fittings separately based on your existing plumbing configuration. Consider whether you need straight or angled connectors, check the thread size on the pump ports, and ensure any fittings match your hose diameter. Some retailers offer the pump with fitting kits, but verify what's included before purchase to avoid installation delays.
KTW-BWGL is a German certification that tests materials in contact with drinking water for harmful substances and contamination. All wetted materials inside the Shurflo Revolution 4009 meet these strict German drinking water standards, meaning plastics, rubber seals, and other internal components won't leach chemicals or affect water taste. This certification is recognised across Europe and ensures the pump is safe for potable water systems in caravans and motorhomes. The E8 electromagnetic compatibility mark confirms the pump won't cause electrical interference with other devices in your vehicle.
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