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Rule Industries 56D 4000 GPH Non-Automatic Submersible Electric Bilge Pump 12V

Manufacturer

Rule Industries

<h3>Rule Industries: Five Decades of Marine Pumping Excellence</h3> <p>Since 1965, Rule Industries has been a trusted name in marine solutions, setting the industry standard with high-performance submersible bilge pumps. As part of Xylem's portfolio of water technology brands, Rule has built an exceptional reputation among commercial fishermen, recreational boaters, and marine professionals who demand equipment that performs when it matters most. As marine technology developed, Rule stayed ahead, delivering pump systems that became the go-to choice for commercial fishermen and recreational boaters alike.</p> <p>Every boat owner faces the same challenge: water intrusion is inevitable. Whether from rain, splash-over, or slow leaks, managing bilge water is critical to vessel safety and longevity. That's where Rule's engineering expertise becomes essential. Rule pumps have built their reputation in the field—through storms, mechanical failures, and those high-pressure situations where reliable water removal is the difference between a close call and a catastrophe.</p> <h3>Comprehensive Marine Water Management Solutions</h3> <p>Rule's product lineup centers on one core mission: keeping vessels dry and operational in any condition. Their <a href="/6623-rule-industries-electric-bilge-pumps-200350">electric bilge pumps</a> form the foundation of this commitment, offering flow rates from 360 GPH to over 3800 GPH to match any vessel size and water accumulation challenge. These pumps feature marine-grade construction designed to withstand salt spray, temperature extremes, and constant moisture exposure that would quickly destroy lesser equipment.</p> <p>Understanding that automation is key to peace of mind on the water, Rule offers multiple control solutions. Their <a href="/6623-rule-industries-float-switches-200426">float switches</a> provide reliable automatic activation when water levels rise, eliminating the need for constant monitoring. For comprehensive vessel protection, Rule's <a href="/6623-rule-industries-bilge-pump-switches-alarms-200163">bilge pump switches and alarms</a> deliver layered safety systems that alert operators to water intrusion while automatically managing removal. Rule Automatic Bilge Pumps feature built-in sensors that check for water every 2.5 minutes, ensuring continuous protection without manual intervention.</p> <p>Beyond bilge management, Rule provides specialized solutions for other marine applications. Their <a href="/6623-rule-industries-air-pumps-adaptors-200078">air pumps and adaptors</a> support livewell systems critical for fishing operations, while their extensive range of <a href="/6623-rule-industries-plumbing-parts-accessories-200786">plumbing parts and accessories</a> ensures that complete fluid management systems can be built, maintained, and upgraded using Rule components.</p> <h3>Engineering That Stands Up to Marine Environments</h3> <p>Rule's commitment to quality and durability makes their pumps the first choice among do-it-yourselfers and professional installers alike. The brand's pumps undergo rigorous testing to ensure they deliver rated flow rates even under challenging conditions. Their cartridge-style pump designs allow for easy maintenance—when debris clogs the strainer or impeller, the motor cartridge can be quickly removed for cleaning and reinstalled, minimizing downtime.</p> <p>High-quality materials handle salt spray, temperature swings, and constant moisture without breaking down, designed to keep working in conditions that destroy lesser equipment. This durability translates to real-world reliability for boaters who need equipment they can count on when far from shore, facing rough seas, or leaving their vessels unattended.</p> <h3>Why Marine Professionals Choose Rule</h3> <p>Rule's position in the marine industry reflects decades of proven performance. The brand's pumps are specified by boat manufacturers, recommended by marine technicians, and chosen by vessel owners who understand that bilge pump failure isn't just an inconvenience—it's a serious safety risk. From small recreational craft to larger commercial vessels, Rule provides scalable solutions backed by widespread availability through marine dealers and distributors worldwide.</p> <p>Whether you're replacing a worn pump, upgrading to automatic operation, or building a new vessel, Rule Industries delivers the marine pumping technology that keeps boats dry, protected, and ready for whatever conditions they encounter on the water.</p>

Part Number

56D
07/13/2036 5:06 AM
Sale Price

$258.24

3 left at this price

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Usually delivered within 2 days

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No Hassle Returns

No Hassle Returns

Live-in-stock inventory

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Fitment guaranteed

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Product Details

The Rule Industries 56D is a high-capacity, fully submersible 12-volt electric bilge pump engineered for demanding marine applications. Delivering 4,000 GPH (15,140 LPH) at open flow, it packs maximum pumping performance into a compact, lightweight housing — making it an ideal primary bilge pump for larger yachts, motor cruisers, and commercial vessels.

This non-automatic model operates via a separate float switch or panel-mounted switch (sold separately), giving boaters traditional, straightforward control over bilge water management. A 2-inch (51mm) threaded discharge outlet simplifies installation and allows for secure hose connections. Built-in backflow prevention minimizes residual water in the bilge, reducing moisture, odor, and corrosion over time.

Key Features:

  • 4,000 GPH (15,140 LPH) open-flow pumping capacity
  • Fully submersible construction with rust and corrosion protection
  • Compact, energy-efficient long-life motor — can run dry without burnout
  • Hidden anti-airlock vents prevent air locking in complex plumbing installations
  • Snap-lock strainer base for quick, easy cleaning without tools
  • Built-in thermal cut-off for added motor and vessel protection
  • Backflow prevention keeps bilge drier between pump cycles
  • Marine-grade sealed wiring and moisture-tight seals
  • Silent, vibration-free operation
  • Meets ISO 8846 (ignition protection) and ISO 8849 (marine bilge pump) standards

Specifications:

  • Voltage: 12V DC
  • Amp Draw: 15.5A
  • Fuse Size: 25A
  • Discharge Outlet: 2 in (51mm) threaded
  • Height: 7.75 in (196.8mm)
  • Width: 4.875 in (124mm)
  • Maximum Recommended Discharge Head: 13.1 ft (4m)

The Rule 56D is a trusted solution for keeping bilges dry and vessels protected. As a non-automatic pump, it pairs with Rule float switches or panel switches for a complete, reliable bilge management system.

Products specifications

Amperage

20 Amps at 12 Volts DC

Capacity

4000 Gallons per Hour

Diameter

2"

Voltage

12 Volts

Warranty Details

Three Years Limited

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