A Revolution in 12 VDC RV Water Pumps

The design for SHURflo's Revolution, 3 GPM, 55 PSI Fresh Water Pump revolves around its unique one-piece diaphragm and internal by-pass. Together this assures long life and top performance in RV and trailer based plumbing systems in which it is installed. The SHURflo's Revolution pump is also a mini powerhouse, delivering three gallons of water per minute to onboard sinks, toilets, showers and more at up to 55 PSI, while requiring only a reasonable power draw of 7.5 Amps from an onboard 12 VDC power source. Conveniently, it can be mounted in any position, is thermally protected, can run dry without damage and utilizes patent pending Flow Reaction Technology to reduce noise, vibration and excessive pump cycling. The result is the next legendary water pump from SHURflo that is both affordable on any budget, and is sure to exceed the expectations of customers and industry insiders alike.

SHURflo 4008-101-E65 3 GPM 55 PSI Revolution Pump
Advanced and reliable DC powered water pressure for RVs.
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Performance data for the SHURflo 4008-101-E65 3 GPM 55 PSI Revolution Pump
High performance with low Amp draw.
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Schematic of the SHURflo 4008-101-E65 3 GPM 55 PSI Revolution Pump
Easy installation and system longevity.
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Typical Applications

SHURflo 4008 series Revolution water pumps are created with everything from travel trailers, fifth wheelers, campers and motorhomes in mind. Within this range typical applications include multi-fixture RV adjustable by-pass fresh water pump installations, use in 12 VDC pressurized water systems in cabins or other locations away from standard plumbing and general water transfer systems. For other applications contact SHURflo.


  • Type - 4 chambered diaphragm with adjustable pressure switch and by-pass
  • Ports - ½”-14 NPSM-male.
  • Flow Rate GPM/LPM - 3.0 GPM [11.4 LPM]
  • Liquid - 130°F [54°C] max
  • Prime - 6 feet [1.82 M]
  • Inlet - 30 PSI [2.1 Bar] max
  • Run Dry - Yes
  • Motor - 12 VDC permanent magnet, intermittent duty
  • Protection - Thermal overload, automatic restart
  • Leads - 16 AWG, 16" [40 cm] Red +, 10" [33 cm] Black
  • Fuse - 10 Amp recommended
  • Control - Adjustable switch with check valve
  • Amps (max) - 7.5
  • Shutoff Pressure - 55 PSI [3.8 BAR]
  • Restart - 25 PSI [1.7 Bar]


  • 3 gallons per minute
  • 12 VDC powered
  • 55 PSI
  • Quiet operation
  • Modern 'green' design for reduction of hazardous waste and power consumption
  • Internal bypass-low cycling
  • Self-priming
  • Dimensions Inches/Millimeters - 4.9" x 8.1" x 4.3" [125 x 206 x 110 mm]
  • Built-in check valve
  • 2 year limited warranty

Two-year Limited Warranty

SHURflo warrants its aftermarket Revolution 4008 Series Potable Water Pumps to be free from material and workmanship defects under normal use and service for 2 years from the date of purchase with purchase receipt or 2 years from the date of manufacture indicated on the motor nameplate if no purchase receipt is available. Pumps installed as original equipment fall under the warranty supplied by the manufacturer.

About SHURflo

SHURflo is part of the Flow Technologies Group of Pentair, Inc. (PNR), a publicly held company on the New York Stock Exchange. The company was founded in 1968 to serve a recreation market that was searching for a dependable fresh water pump to deliver water stored in tanks to the faucets, showers and toilets installed in the coaches. SHURflo delivered then and they deliver now as the dominant supplier to the RV, marine, general industrial and floor care markets. SHURflo has full service sales, service and distribution center in Elkhart, Indiana, as well as a hub for the company located in Cypress, California.

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SHURflo 4008-101-E65 3.0 Revolution Water Pump

  • Brand: Shurflo
  • Product Code: 4008-101-E65
  • Availability: 20
  • $119.00
  • $117.94

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Dynamic Head

The effect of the Earths gravity on the "lift" or head pressure is fairly simple; for every vertical foot of distance the pump moves the water you are adding one foot of head pressure so the ratio is a 1:1 ratio. The effects of the friction, caused by water as it travels through your hose or pipes, on the total head pressure is a little more difficult to calculate especially as there are slight variations in pipe friction in different hose materials and the smoothness of the inner bore. Basically. for every ten feet of pipe through which the water has to travel travel horizontally will contribute 1 foot of head height; the ratio of the pipe friction loss is a 10:1 ratio.

Plumbing fixtures and bends and corners in your hose also increase the total head you must calculate to ensure the proper final volume from your pump. Every corner with a 90 degree elbow in your plumbing will add 1 foot of head pressure  with a 1:1 ratio. 45 degree elbows, tees and even insert couplers can all have an impact on the final flow.

If you install a pump 40 feet away from the top of your waterfall which is 6 feet above the pump and the tubing is a single run of 40 feet horizontally then you add 4 feet of head for the tubing length (the 10:1 ratio) to the 6 foot differnetial between the pump location and the final height of the waterfall so your final total dynamic head calculation would be 10 feet. This means your final volume of water flow in this water feature or application would be the volume of flow on the performance curve that equaled the gallons per hour at 16 feet. This volume will certainly be much less than the initial volume the pump can move at an open flow or a zero head.

If in the above example your 40 feet of horizontal tubing run also required 3 elbows of 90 degrees then an additional 3 feet of theoretical head would be added and your final flow result would be at 19 feet on the performance curve of the pump. In this example you would want to choose a pump that has the desired GPH rating at 9 feet of head pressure.  Tubing size is also an important factor in accounting for head pressure loss, in general you should never reduce the diameter of the tubing below what the output size of the pump is, this will drastically increase head pressure, and reduce pump performance.  For maximum pump performance, using the largest tubing that is practical is the best choice. A best practice is to use a hose with an inner diameter that is the same as your pumps outlet fitting.