Attwood Sahara MK2 S500 Bilge Pump 500 GPH - 12V - Automatic

The Attwood Sahara MK2 S500 Bilge Pump 500 GPH – 12V – Automatic is the workhorse every serious boater needs in their engine compartment. Built for reliability in demanding marine environments, this automatic bilge pump activates when water reaches the float switch, silently pumping 500 gallons per hour straight overboard. Whether you're running extended offshore trips, navigating rough seas, or simply protecting your vessel during rain and spray, this pump delivers dependable performance when you need it most.

Attwood engineered the Sahara MK2 S500 with a cool-running permanent magnet motor, stainless steel shaft, and steel-reinforced seals to withstand saltwater corrosion and continuous cycling. The 12V system draws minimal electrical load from your boat's battery and operates with minimal noise—critical when you're trying to enjoy time on the water. A robust internal design prevents cavitation and vapor lock, meaning the pump won't fail when you're most vulnerable. The compact 6 x 4 x 7-inch footprint fits easily into tight bilge spaces without requiring extensive rewiring or hull modifications.

This automatic bilge pump is ideal for center console fishing boats, cabin cruisers, runabouts, and cruising sailboats where automatic water management is essential. The float-switch design means zero manual operation—the pump activates automatically and shuts off once water levels drop. Installation is straightforward on any 12V DC system, with standard through-hull fittings compatible with common marine hose sizes. Anglers and cruisers who log serious hours offshore consider this Attwood model an insurance policy against the unexpected, ensuring your vessel stays dry and your focus stays on fishing.