Attwood Heavy-Duty Bilge Pump 1700 Series – 12V – 1700 GPH – 4730-4

Protect your vessel with dependable, high-capacity bilge water removal using the Attwood Heavy-Duty Bilge Pump 4730-4. Part of Attwood’s proven 1700 Series, this 12V DC bilge pump delivers a powerful 1700 gallons per hour (GPH) flow rate, making it ideal for mid- to large-size boats and demanding marine applications.

Built with a heavy-duty, corrosion-resistant housing, this bilge pump is engineered for long-term reliability in both freshwater and saltwater environments. Its efficient motor provides consistent performance while maintaining low power draw, ensuring dependable operation when it matters most.

Key Performance Features

• High-Volume Output: Moves up to 1,700 Gallons Per Hour (GPH) at open flow, making it ideal for large bilge areas that require rapid water evacuation.

• Rugged Construction: Features a 316 stainless steel motor shaft for superior corrosion resistance and high-quality bearings that extend the service life of the motor.

• Durable Housing: Built with advanced resins that are highly resistant to engine oil, detergents, and fuel, ensuring the pump body won't degrade or become brittle over time.

• Maintenance Friendly: The motor module is designed to be easily removed from the base, allowing you to clean the debris strainer or replace the motor without disconnecting your plumbing.

• Universal Mounting: The base includes a swivel locking mechanism with 8 different positions, providing maximum flexibility when routing your discharge hose in tight spaces.

Technical Specifications

• Flow Rate: 1,700 GPH

• Voltage: 12V DC

• Current Draw: ~5.0 Amps (Requires a 10A fuse)

• Outlet Size: 1-1/8" Inner Diameter (ID) hose

• Operation: Non-automatic (requires a separate float switch or manual switch)

Summary for the User

The 4730-4 is a reliable "workhorse" for boaters who need serious pumping power. Because it is a non-automatic pump, it will only run when it receives power from a switch. It is highly recommended for use as a primary pump in large boats or as a high-capacity backup pump for emergency situations.

Installation Tip: To ensure a long-lasting electrical connection, use marine-grade heat-shrink butt connectors to seal the wire leads. This prevents water from traveling up the wires and damaging the motor.

Part Number: 4730-4

The Attwood Heavy-Duty 1700 Series Bilge Pump delivers powerful, dependable water removal—providing confidence and protection for your boat in challenging conditions.

WARNING: This product can expose you to chemicals which are known to the State of California to cause cancer, birth defects or other reproductive harm. For more information go to P65Warnings.ca.gov.

Manufacturer : Attwood Marine
Manufacturer Part No : 4730-4
UPC : 022697473042