PowerMax RV Water Pump 4008-101-A65/E65 – 3 GPM, 55 PSI, 12V Self-Priming Diaphragm Pump

Reliable on‑demand RV water delivery

Meet the PowerMax RV Water Pump 4008-101-A65/E65, a compact 12V diaphragm pump engineered to keep your camper’s water system flowing smoothly. Delivering up to 3 gallons per minute at 55 psi, it provides steady pressure for faucets, sinks, and small appliances while remaining quiet and energy‑efficient. This pump is designed to replace the 4008-101-A65/E65 model and integrates with standard RV plumbing for a seamless upgrade in your water system.

Whether you’re parked at a campsite with limited pressure or relying on your onboard supply, this pump delivers on‑demand performance without the typical noise and rapid cycling. Its robust internal design minimizes pulsation, so you enjoy a calmer, more predictable water experience as you cook, clean, and refresh yourself on the road.

Key benefits at a glance

• 3 GPM flow at 55 psi to support common RV needs
• 12V DC operation aligned with typical RV electrical systems
• Self‑priming capability up to 9 ft to reach your water source easily
• Low cycling and quiet operation thanks to an internal bypass design
• Runs dry without damage and is thermally protected for reliability
• Lightweight with mounting flexibility; can be installed vertically or horizontally
• Built‑in check valve helps maintain pressure and prevent backflow
• Handles potable water for RV use and is suitable for some non‑potable applications
• Factory‑set 45 psi shut‑off with adjustable range of 30–50 psi
• Includes quick attach fitting for fast, tool‑free setup

Real‑world usefulness

• Maintains consistent shower and faucet pressure even when the water source varies
• Effortlessly supports sinks, dishwashing, and onboard appliances with reliable flow
• Ideal for compact RV layouts where space and install options are important

Durability and installability

Designed for RV systems, this unit is lightweight and versatile, compatible with vertical or horizontal mounting. It replaces the 4008-101-A65/E65 in many setups, and its one‑piece diaphragm with internal bypass contributes to long‑lasting performance. The included strainer helps guard against debris, while the quick attach fitting simplifies connections.

What’s included

• 1 PowerMax RV water pump 4008-101-A65/E65
• 1 strainer for debris protection