Attwood Marine HD2000 Non-Automatic Bilge Pump, 2000 GPH, 1-1/8 in Outlet, Anti-Airlock Nozzle

Overview

The Attwood Marine HD2000 is a high-output non-automatic bilge pump for moving standing water from a boat bilge through a 1-1/8 inch hose connection. It is part of Attwood's heavy-duty HD2000 range, with installation data rating the pump at 1850 GPH open flow and 1390 GPH at 3 ft head.

This pump is a practical fit for boats that need strong bilge water transfer in a compact submersible pump body, including fishing boats, cruisers, work boats and larger recreational vessels. The anti-airlock nozzle helps vent trapped air in the discharge path, which is useful in real bilge layouts where hose routing is not always perfectly straight.

The HD2000 is offered in DC voltage configurations, so the selected version must match the vessel's bilge circuit before wiring. It can be used as part of a manual bilge system or integrated with a compatible automatic switch when the boat's setup calls for automatic operation.

Key features

• HD2000 heavy-duty bilge pump for removing standing water from the bilge.
• Rated pump performance of 1850 GPH open flow and 1390 GPH at 3 ft head in the installation data.
• 1-1/8 inch outlet hose size for use with smooth-bore bilge hose and a matching thru-hull fitting.
• Anti-airlock nozzle vents trapped air that can interrupt pump flow while helping limit spray streams.
• Rotating outlet, locking tab and swivel base allow eight mounting positions for tighter bilge spaces.
• Removable strainer basket gives access for cleaning debris from the impeller chamber and outlet.
• Exterior resin resists common bilge-area chemicals such as engine oil, detergents and hose plasticizers.
• Caulked and tinned copper wire helps reduce corrosion risk at the pump wiring leads.

Variants

This HD2000 pump is offered in multiple rated-voltage configurations for different boat electrical systems.

The rated voltage is the main difference between the listed variants. The HD2000 pump style, anti-airlock nozzle and 1-1/8 inch hose connection remain the practical points to confirm when comparing the configurations.

• 4760-1: Rated voltage 12V. This version fits boats using a 12V DC bilge circuit, which is common on many small and mid-size recreational vessels.
• 4760-4: Rated voltage 24V. This version fits boats using a 24V DC bilge circuit, so the pump feed, switch, fuse holder and wiring plan need to match that voltage.

Installation and fit

Install the pump in the lowest accessible part of the bilge so it can remove as much standing water as the hull layout allows. A short, direct discharge hose run is preferred, with the thru-hull outlet installed above the waterline where discharge can be monitored.

Use 1-1/8 inch inside-diameter smooth-bore hose and secure both hose ends with suitable clamps. Avoid low spots, kinks or downward dips in the discharge line, since trapped water and air in the hose can contribute to airlock and reduced flow.

Electrical and system integration

Bilge pump wiring should be kept above the highest expected water level wherever possible, with waterproof electrical connections and a fuse holder in the positive lead. The pump can be wired for manual operation through an on/off switch or used with a compatible automatic bilge switch when automatic operation is required.

Match the pump voltage to the boat's DC system before connecting power. A bilge pump on the wrong voltage circuit can fail or create an unsafe installation, so the voltage selection matters as much as the hose size and mounting location.

Maintenance and care

Check the strainer basket, impeller chamber and outlet during routine bilge inspections, especially after fishing, maintenance work or periods when debris may collect in the bilge. Hair, line, grit and small fragments can reduce flow if they reach the pump chamber.

This pump is intended for standing water only. It should not be used for gasoline, oil or other flammable liquids, and it should be treated as one part of a complete bilge safety plan rather than a substitute for hull maintenance, proper thru-hull care or emergency procedures.

Orders are processed within 2 business days, which includes verification, packing, and dispatch. Orders of $100 or more qualify for free shipping when eligible. For orders under $100, shipping costs are calculated at checkout based on destination, package weight, and selected service. International shipping is available for eligible products, and certain items may require additional handling, warehouse transfers, or may ship directly from the manufacturer, which can affect processing time.

Deliveries are handled by preferred carriers such as USPS, UPS, FedEx, DHL, and others depending on your location and selected service. Estimated delivery times are displayed at checkout and may vary due to customs processing, carrier delays, weather, postal disruptions, or other circumstances beyond our control. Once your order ships, you'll receive a confirmation email with tracking information. Tracking may take up to 24 hours to update on the carrier's website and is also available through your account when applicable.

We ship throughout the United States and to most international destinations for products eligible for international shipping. International orders may be subject to customs duties, taxes, brokerage charges, or other import fees, which are the customer's responsibility and are not included in the product or shipping price. PO Boxes are accepted only when shipping through USPS, and not all packages qualify for this option. If your order does not arrive within the estimated delivery window, please contact us at info@apollolighting.com or +1 (954) 375-0100 so we can assist with locating your package.

Learn more.

Returns may be requested within 30 days of receiving your order. Items must be unused, uninstalled, unaltered, and returned in their original packaging with all tags, packing materials, blank warranty cards, manuals, instructions, accessories, and included items. Certain products, including installed or used electronics, electrical components, lighting, consumables, custom or special-order items, cut-to-length products, safety equipment, and merchandise exposed to water or marine conditions, may not be eligible for return.

To request a return, sign in to your account and select the applicable order and items, and submit your request for review. Eligible unfulfilled items may also be submitted for cancellation within 1 hour of placing the order. Returns or cancellations are not considered approved until you receive confirmation from Apollo Lighting. Please do not ship or drop off merchandise before receiving return approval and instructions.

Customers are responsible for arranging and paying for return shipping unless the return is due to an error by Apollo Lighting or the item is verified as defective, damaged, or incorrect. Missing, damaged, defective, or incorrect items must be reported within 2 business days of delivery, and photos or other documentation may be required for review. If the issue is verified, Apollo Lighting may provide or reimburse return shipping and issue a replacement or refund depending on the circumstances. International customers are responsible for return shipping, duties, taxes, customs charges, brokerage fees, and other costs associated with an international return.

After your return is received and inspected, approved refunds are issued to the original payment method and may take 5-7 business days to appear after processing. Original shipping and handling charges are nonrefundable, and the value of any included free items that are not returned may be deducted from the refund. Apollo Lighting does not charge a standard restocking fee on eligible returns. Returns that are incomplete, damaged, installed, used, altered, improperly packaged, or otherwise do not meet the eligibility requirements may be refused. We recommend using a trackable and appropriately insured shipping service for all customer-arranged returns.

For assistance, contact info@apollolighting.com or call +1 (954) 375-0100.

Learn more.

Many products sold by Apollo Lighting include a manufacturer's warranty covering defects in materials or workmanship. Warranty terms vary by brand, product category, and model, so eligibility, coverage duration, exclusions, and available remedies are determined by the applicable manufacturer. We recommend reviewing the warranty information provided with your product before installation or use, especially for marine electronics, navigation equipment, lighting, electrical systems, pumps, safety equipment, and other specialized marine products.

If you need warranty service, the claim must follow the process established by the manufacturer, authorized service center, or designated warranty provider. You may be asked for proof of purchase, a serial number, product registration, photos, maintenance or installation records, or other documentation. Apollo Lighting does not determine or modify a manufacturer's warranty coverage or final claim decision, but we are happy to help provide purchase information and direct you to the appropriate manufacturer or warranty resource.

Keep your receipt, product documentation, serial number information, and original packaging when practical. Damage caused by normal wear, misuse, improper installation, insufficient maintenance, corrosion, impact, unauthorized modifications, electrical issues, or operation outside the manufacturer's specifications may not be covered. Warranty claims are separate from standard returns, so a product that has been installed, used, or exposed to marine conditions may no longer qualify for return while still remaining eligible for evaluation under the manufacturer's applicable warranty.

Learn more.