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Xylem 51S 1500 GPH Automatic Bilge Pump

Manufacturer

Xylem

<h3>About Xylem: A Global Leader in Water Technology</h3><p>Xylem is one of the world's foremost water technology companies, designing and manufacturing engineered solutions that move, treat, test, and monitor water across virtually every application imaginable. <strong>Founded in 2011</strong> as a spin-off from ITT Corporation, Xylem quickly established itself as a dedicated water solutions provider, drawing on a portfolio of brands with roots stretching back more than 150 years. Today, the company operates in more than 150 countries and employs roughly 23,000 people worldwide.</p><p>The name &quot;Xylem&quot; is derived from the Greek word for the plant tissue that transports water — an apt metaphor for a company whose core mission is moving and managing water efficiently and sustainably. That mission spans public utilities, industrial manufacturers, commercial buildings, agriculture, and the marine industry, making Xylem one of the rare brands that touches both municipal water infrastructure and the weekend boater's vessel.</p><h3>Xylem's Marine Legacy: Rule &amp; Jabsco</h3><p>In the recreational and commercial marine world, Xylem is best known through two iconic sub-brands: <strong>Rule</strong> and <strong>Jabsco</strong>. Since 1965, the Rule brand has set the industry standard for submersible bilge pumps, and today it remains the most trusted name in marine bilge pumping around the globe. Whether you're managing bilge water on a small skiff or a large offshore yacht, Xylem's <a href="/13259-xylem-electric-bilge-pumps-200350">electric bilge pumps</a> are engineered to deliver reliable, high-capacity water removal with features like thermal cut-off protection, backflow prevention, and automated water sensing.</p><p>Jabsco, meanwhile, brings decades of expertise to a wide range of marine fluid-handling challenges. From engine cooling and waste management to cabin ventilation, Jabsco products are engineered for the demanding conditions of life on the water. Xylem's <a href="/13259-xylem-blowers-201714">marine blowers</a> from the Jabsco line are purpose-built to remove fumes from engine compartments and provide air intake or extraction in galleys, bilges, and accommodation spaces — a critical safety function on any vessel.</p><h3>Innovation, Sustainability, and Smart Water Solutions</h3><p>Beyond the marine market, Xylem's broader portfolio includes heat exchangers, smart meters, HVAC components, and advanced analytics platforms used by utilities and industrial operators worldwide. The company has committed to ambitious sustainability goals, including science-based targets to reduce greenhouse gas emissions — a reflection of its founding vision to enable responsible water use globally. For boaters and marine professionals, this commitment to innovation translates directly into products that are more efficient, longer-lasting, and safer than ever before.</p><p>Whether you're outfitting a new build, replacing a worn bilge pump, or upgrading your boat's ventilation system, Xylem's marine product lineup offers solutions backed by decades of engineering excellence and a global support network.</p>

Part Number

51S
07/13/2036 6:59 AM
Sale Price

$1,739.47

2 left at this price

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Usually delivered within 2 days

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Fitment guaranteed

Fitment guaranteed

Product Details

The Xylem 51S is a Rule brand automatic bilge pump rated at 1500 gallons per hour (GPH) for 12-volt DC systems. This completely submersible pump features computerized operation based on impeller resistance, eliminating the need for float switches.

Automatic Operation:

The pump turns on every 2-1/2 minutes for about one second to sense for water in the bilge, and if water is present, the pump will sense resistance and continue to run until the water is removed. The Rule 51S checks for water every 2 1/2 minutes and activates at 5/8" water level, draining down to 1/4". Power use in checking mode totals only 0.35 Amp hours per day.

Key Features:

  • 1-1/8" discharge outlet, 12 volts DC, 4.8 amp draw
  • Heavy 5/16" stainless steel shaft with nylon/fiberglass impeller
  • Easy to clean snap-lock strainer base
  • Ignition protected with no burn-out when run dry
  • Silent running and vibrationless operation
  • Anti-airlock protection
  • Marine grade sealed wiring
  • CE and ISO 8849 certification

Construction:

The pump features a double insulated long stack motor and housing made of heat resistant acetal resin. Moisture tight PTFE seals and double strainer non-clogging protection ensure reliable operation in fresh or saltwater environments.

The 3-wire version allows manual override or indicator light capability. Backed by a 3-year limited warranty, this pump is suitable for marine bilge applications requiring dependable automatic water removal.

Thank you

First purchase here, all fine thus far. Awaiting 2-day shipment!

The casing on the speaker was broken, but I did have another casing to use. You only had one available, and I couldn't find it anywhere else, so I chose not to return it.

Very easy and everything was as promised and expected, thank you. I run a multimillion dollar repair shop I will def use your company in the future.

Got what I ordered, installed the part. Now my 450sl is back on the road.

Very simple process!

Received what I ordered

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