SHURflo RV Fresh Water Pumps: 1, 2.3, 3 & 4 GPM Compared

A replacement RV water pump should match more than the flow rating on its label. Power supply, shut-off pressure, space around the mounting feet and plumbing connections all affect which model makes sense. This guide compares the SHURflo pumps stocked by NewRVParts using the exact aftermarket model numbers, then connects you to the appropriate product and parts-reference pages.

Start with the voltage12V DC, 24V DC and 115V AC pumps are different electrical products, even when their flow ratings match.
Use GPM as one comparisonRated flow is a model specification, not a promise that every fixture will receive that flow after plumbing losses.
Measure the pump spaceThe 4048 high-flow pump is longer than the 4008 and 4028 Revolution bodies.

SHURflo pump model and size chart

Aftermarket MPN Pump family Supply voltage Rated flow Shut-off Overall size
105-013 SLV · single fixture 12V DC 1.0 GPM 30 PSI 6.8 × 3.9 × 2.5 in
4028-100-E54 Revolution 12V DC 2.3 GPM 50 PSI 8.1 × 4.9 × 4.3 in
4008-101-E65 Revolution 12V DC 3.0 GPM 55 PSI 8.1 × 4.9 × 4.3 in
4048-153-E75 High Flow 12V DC 4.0 GPM 55 PSI 10.3 × 4.9 × 4.8 in
4008-131-E65 Revolution 24V DC 3.0 GPM 55 PSI 8.1 × 4.9 × 4.3 in
4008-171-E65 Revolution 115V AC 3.0 GPM 55 PSI 8.9 × 4.9 × 4.2 in

The flow, pressure and physical measurements above describe the listed manufacturer models. A similar flow or case size does not, on its own, confirm a drop-in replacement.

Which details should you check before ordering?

  1. Read the complete MPN from the old pump, including its letter and number suffix. SHURflo uses different numbers for OEM and aftermarket versions.
  2. Confirm power and protection: establish whether the installation supplies 12V DC, 24V DC or 115V AC, and check the manufacturer's wiring, fuse and operating requirements for that model.
  3. Compare the pressure requirements: the 105-013 SLV is a 30-PSI single-fixture pump; the 4028 listed here shuts off at 50 PSI; the 4008 and 4048 models in this chart shut off at 55 PSI.
  4. Measure and inspect the plumbing: check pump body clearance, mounting, hoses, fittings and strainer connection before treating another model as a replacement.
OEM vs aftermarket numbers: for example, Pentair lists 4008-101-A65 as the OEM version associated with 4008-101-E65 aftermarket. This naming relationship does not override the need to check the original installation and electrical requirements.

Browse the matching SHURflo pumps

Pump-side filtration and smoother flow

An inlet strainer helps prevent debris reaching a pump head. An accumulator is a different component used in compatible plumbing layouts to reduce pressure pulsation and frequent cycling. These accessories are not universal fitment claims; select by the actual connections and system requirements.

Already know your model and need a component instead? See the 4008/4028 service-parts diagram, 4048 high-flow parts diagram, 255-series strainer connection guide and 182-200 accumulator reference. The RV freshwater plumbing overview can help distinguish the roles of the individual components.

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