When your RV water pump needs replacing, the choice almost always comes down to two brands: Shurflo and Flojet. They look similar, cost about the same, and both do the job. But there are real differences worth knowing before you order.
When your RV water pump needs replacing, the choice almost always comes down to two brands: Shurflo and Flojet. They look similar, cost about the same, and both do the job. But there are real differences worth knowing before you order.
Shurflo 2088 Series — The Default Choice
The Shurflo 2088 is the most widely installed RV water pump on the market. If your RV came with a Shurflo from the factory, the 2088 is a direct swap. It's a 3-chamber diaphragm pump rated at 3.5 GPM and 55 PSI, which covers the needs of most travel trailers and Class C motorhomes with one bathroom.
- 3.5 GPM / 55 PSI — adequate for one bathroom, kitchen, and outdoor shower
- Thermal protection built-in — shuts off automatically if it overheats
- Bypass valve allows running dry without immediate damage (briefly)
- Replacement parts (diaphragm kits, pressure switches) are widely available
- Runs on 12V DC, draws 7–8 amps at full load
- Street price: $60–$85
Shurflo 4008 / 4048 Series — The Step Up
For Class A motorhomes, fifth wheels with two bathrooms, or any rig where the 2088 feels underpowered (low pressure when multiple fixtures run simultaneously), the Shurflo 4008 and 4048 bump output to 4.0 GPM at 55 PSI. The 4048 runs quieter and has a better pressure switch than the base 4008.
- 4.0 GPM / 55 PSI — noticeably better pressure with two fixtures running at once
- Quieter operation than the 2088 — softer pump cycling
- Same 1/2" port sizing — direct replacement for most 2088 installations
- Street price: $120–$160
Flojet 03526 Series — The Main Alternative
Flojet (made by Xylem) builds solid pumps used in both marine and RV applications. The 03526-144A is the direct competitor to the Shurflo 2088 — same port sizing, similar flow rate (3.3 GPM vs. 3.5 GPM), and nearly identical installation footprint.
- 3.3 GPM / 50 PSI — very slightly lower output than the 2088
- Reputation for quieter cycling than the base 2088
- Less common at RV supply stores — may need to order online
- Replacement parts less widely available than Shurflo
- Street price: $65–$90
Head-to-Head: Which One to Buy
For most RV owners: Shurflo 2088
If you're replacing a failed pump on a standard rig and want a reliable, parts-available, widely-supported pump — buy the Shurflo 2088. It's the most common pump in North American RVs for a reason. If your original pump was a 2088, the replacement is a direct swap with no guesswork.
For larger rigs or two-bathroom setups: Shurflo 4048
If you currently feel pressure drop when two people are using water simultaneously, or if you have a Class A with three fixtures, step up to the 4048. The price difference from the 2088 is about $60 — worth it if you're going to notice the capacity difference every time you use the rig.
Noise is your priority: Flojet or Shurflo 4048
If pump cycling noise is a significant annoyance (it bothers some owners more than others), both the Flojet 03526 and the Shurflo 4048 cycle more quietly than the base 2088. The 2088's pressure switch has a noticeable click-click cadence that some find irritating. Either step-up option reduces it.
What Actually Makes a Pump Fail Faster
Brand choice matters less than operating conditions. These shorten the life of any RV pump:
- Running dry — even briefly — accelerates diaphragm wear. Always confirm the tank has water before running the pump.
- Sediment in the water supply wears the inlet strainer and check valves. Clean the strainer every season.
- Freezing — ice in the pump cracks the housing or diaphragm. Winterize properly.
- Continuous cycling without demand — if the pump cycles on and off frequently with no fixtures open, you have a small leak or a failing pressure switch. Fix it; don't ignore it.
Common Question
Is Shurflo better than Flojet?
For most RV owners the Shurflo 2088 is the better choice purely because of parts availability and broader dealer support. The Flojet 03526 is a quality pump but harder to find locally. If noise is your primary concern, both the Flojet and the Shurflo 4048 cycle more quietly than the base 2088.
Common Question
What is the best RV water pump for a travel trailer?
The Shurflo 2088-554-144 covers the needs of the vast majority of travel trailers — one bathroom, kitchen, and outdoor shower. It's the most common factory-installed pump on North American travel trailers and the most straightforward replacement. If you notice pressure drop when two fixtures run simultaneously, step up to the Shurflo 4048.
Common Question
How long do Shurflo and Flojet pumps last?
Both brands typically last 5–10 years with normal use and basic maintenance (clean strainer annually, don't run dry, winterize properly). Hard water, sediment, and dry-running are the main life-shorteners. Heavy use in a full-time or long-season RV will push toward the lower end of that range.
If you need help selecting the right pump for your rig or want it installed on-site in Northern California, we handle it. Learn about our RV plumbing repair service.
BossBros RV Team
Redding, CA