Shurflo Revolution 4008 3.0 GPM
#7 in Under 4 GPMFull review
The standard replacement pump for travel trailers and campers, with a 55 psi switch and a bypass for smoother flow. Buy it to replace a worn 4008 like for like.
Amazon $127.05$127.05
The Shurflo Revolution 4008 3.0 GPM is the better RV water pump overall, rated 2.7 to 2.5. The Shurflo Revolution 4008 3.0 GPM leads on flow, value and pressure. The Shurflo Revolution 4028 2.3 GPM wins on features and efficiency. The Shurflo Revolution 4028 2.3 GPM costs $6.95 less ($120.10 vs $127.05).
Prices were last checked November 9, 2026. Product prices and availability are accurate as of that date and are subject to change; the price and availability shown on Amazon or the retailer's site at the time of purchase apply. As an Amazon Associate we earn from qualifying purchases.
Shurflo Revolution 4028 2.3 GPM
#9 in Under 4 GPMFull review
A low-draw 2.3 GPM pump for a small camper or van with one fixture in use at a time. Larger rigs get more water per dollar from a 3 GPM pump.
Amazon $120.10$120.10
Which should you buy?
- Choose the Shurflo Revolution 4008 3.0 GPM for flow (3 GPM rated open flow vs 2.3 GPM rated open flow), value ($42.35 per GPM ($127.05, 3 GPM) vs $52.22 per GPM ($120.10, 2.3 GPM)) and pressure (55 psi shut-off vs 50 psi shut-off).
- Choose the Shurflo Revolution 4028 2.3 GPM for features (internal bypass, runs dry without damage, thermal protection vs internal bypass, runs dry without damage) and efficiency (0.46 GPM per amp (5 A max) vs 0.40 GPM per amp (7.5 A max)).
Scores side by side
Each factor is scored 0-100 against the same fixed reference points for every under 4 GPM RV water pump; a clear win is highlighted. How we rank explains each one.
| Factor weight | Shurflo Revolution 4008 3.0 GPM | Shurflo Revolution 4028 2.3 GPM |
|---|---|---|
| Overall rating | 2.7/5 | 2.5/5 |
| Value 25% | 33 $42.35 per GPM ($127.05, 3 GPM) | 19 $52.22 per GPM ($120.10, 2.3 GPM) |
| Flow 20% | 25 3 GPM rated open flow | 7 2.3 GPM rated open flow |
| Pressure 15% | 71 55 psi shut-off | 57 50 psi shut-off |
| Efficiency 10% | 43 0.40 GPM per amp (7.5 A max) | 60 0.46 GPM per amp (5 A max) |
| Features 15% | 40 internal bypass, runs dry without damage | 55 internal bypass, runs dry without damage, thermal protection |
| Warranty 15% | 0 warranty not published, scored as none | 0 warranty not published, scored as none |
Specifications
| Shurflo Revolution 4008 3.0 GPM | Shurflo Revolution 4028 2.3 GPM | |
|---|---|---|
| Performance | ||
| Rated open flow | 3 GPM | 2.3 GPM |
| Shut-off pressure | 55 psi | 50 psi |
| Max current draw | 7.5 A | 5 A |
| Price per GPM | $42.35 | $52.22 |
| Self-priming lift | - | 6 ft |
| Features | ||
| Control | Pressure switch | Pressure switch |
| Diaphragm chambers | - | 4 |
| Internal bypass | Yes | Yes |
| Runs dry | Yes | Yes |
| Thermal protection | - | Yes |