Water Pumps

What voltage RV water pump do I need?

Almost every modern travel trailer, fifth wheel, and motorhome runs a 12-volt DC water pump wired to the house battery, which is why 12V demand pumps (typically 3.0 to 5.3 GPM, drawing 7 to 10 amps) dominate this collection. Confirm the voltage label on your existing pump before ordering. If you also need to button up your fresh water system for the off season, pair the pump swap with supplies from our RV winterizing kits.

How do I match a replacement pump to my travel trailer?

Check three specs on your current pump: GPM flow rate, PSI cutoff (usually 45 to 55 PSI), and port size (1/2 inch NPT or quick-connect). Match those numbers and the pump will drop into the existing plumbing without re-routing lines. Brand crossovers between Shurflo, Flojet, and Remco are common at the same flow and pressure ratings, so you are not locked to the original manufacturer.

Why is my RV water pump cycling on and off when no faucet is open?

Short cycling almost always points to a small leak or air in the system, not a failed pump. Check the toilet valve, outdoor shower, and every fitting downstream of the pump for drips. If the lines are dry, the internal check valve or pressure switch on the pump itself is worn and the pump should be replaced. A 12V accumulator tank also smooths out cycling on long runs.

Do these pumps ship ready to install, or do I need extra fittings?

Most pumps in this collection ship with the pump head, mounting feet, and a basic wiring pigtail. You will typically need to supply 1/2 inch barbed or quick-connect fittings sized to your existing PEX or poly lines, plus an inline strainer to protect the diaphragm. For broader 12V upgrades while you have the bay open, see our RV electronics selection.

How long should a 12V RV water pump last?

A quality 12V demand pump runs 8 to 10 years of seasonal use, or 3 to 5 years for full-timers. Lifespan depends mostly on water quality and freeze protection. Sediment chews up the diaphragm and check valves, and a single hard freeze with water in the head will crack the housing. Run an inline filter and blow the lines down before storage to get the long end of that range.