{"product_id":"attwood-hd2000-12v-bilge-pump-2000-gph-high-capacity-ball-bearing-marine-bilge-pump-with-anti-airlock-nozzle-mpn-4730-4","title":"Attwood HD 2000 Bilge Pump 4730-4, 12 Volt, Over 2000 GPH, Ball Bearing Design","description":"\u003cp\u003eThe Attwood HD 2000 bilge pump (part number 4730-4) is Attwood's highest capacity bilge pump, built to move large volumes of water quickly to keep a bilge dry in demanding conditions. The pump runs on 12-volt power and delivers over 2000 GPH at open flow while drawing less than 7 amps, giving strong output without placing excessive load on the battery. A ball-bearing design allows the motor to run cooler, which extends motor life compared to pumps relying on bushings alone. The pump is equipped with an anti-airlock nozzle to help prevent air from becoming trapped in the pump housing during operation, which supports more consistent priming and water removal. It comes fitted with a 36 inch wire for connection into the boat's bilge pump circuit. The compact housing measures 5.97 inches by 3.83 inches, allowing it to fit into standard bilge pump mounting locations. This pump is suited for boat owners who need high-volume automatic bilge pumping and want a durable, cooler-running motor for long-term reliability.\u003c\/p\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrand:\u003c\/strong\u003e Attwood\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number:\u003c\/strong\u003e 4730-4\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProduct Name:\u003c\/strong\u003e HD 2000 Pump\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eVoltage:\u003c\/strong\u003e 12 volts\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFlow Rate:\u003c\/strong\u003e Over 2000 GPH at open flow\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAmperage Draw:\u003c\/strong\u003e Less than 7 amps\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWire Length:\u003c\/strong\u003e 36 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBearing Type:\u003c\/strong\u003e Ball bearing\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eNozzle:\u003c\/strong\u003e Anti-airlock nozzle\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDimensions:\u003c\/strong\u003e 5.97 inches x 3.83 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight:\u003c\/strong\u003e 2.625 pounds\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUPC:\u003c\/strong\u003e 022697473042\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eWhat voltage does the Attwood 4730-4 bilge pump run on?\u003c\/strong\u003e The Attwood 4730-4 HD 2000 bilge pump is a 12-volt pump.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow much water can this pump move?\u003c\/strong\u003e The Attwood HD 2000 pump (4730-4) delivers over 2000 GPH at open flow, making it Attwood's highest capacity bilge pump.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow many amps does the 4730-4 draw?\u003c\/strong\u003e It draws less than 7 amps, which is a relatively efficient draw given its over 2000 GPH open-flow output.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhy does this pump use a ball-bearing design instead of bushings?\u003c\/strong\u003e Ball bearings let the motor in the Attwood 4730-4 run cooler than a bushing-supported motor, which helps extend the motor's operating life.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat is an anti-airlock nozzle and does this pump have one?\u003c\/strong\u003e Yes, the Attwood HD 2000 pump 4730-4 includes an anti-airlock nozzle, designed to help keep air from becoming trapped in the pump housing so it primes and pumps more consistently.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow long is the wire on the 4730-4?\u003c\/strong\u003e The Attwood 4730-4 comes with a 36 inch wire for wiring into the bilge circuit.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat are the dimensions of the Attwood HD 2000 pump?\u003c\/strong\u003e The pump housing measures 5.97 inches by 3.83 inches.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow much does the Attwood 4730-4 bilge pump weigh?\u003c\/strong\u003e It weighs 2.625 pounds.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs the Attwood 4730-4 an automatic bilge pump?\u003c\/strong\u003e The 4730-4 is Attwood's HD 2000 pump, an automatic bilge pump model built for high-volume water removal.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat is the difference between the HD 2000 pump and lower-capacity Attwood bilge pumps?\u003c\/strong\u003e Attwood markets the HD 2000 pump, including part number 4730-4, as its highest capacity bilge pump, moving over 2000 GPH at open flow versus the lower flow rates of smaller Attwood pump models.\u003c\/p\u003e","brand":"Attwood","offers":[{"title":"Default Title","offer_id":48989669556443,"sku":"ATT-4730-4","price":129.75,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0839\/7586\/4539\/files\/ATT-4730-4-1700-Bilge-1__16091.1739477318.500.750.jpg?v=1785329070","url":"https:\/\/www.goodvibesmarina.com\/products\/attwood-hd2000-12v-bilge-pump-2000-gph-high-capacity-ball-bearing-marine-bilge-pump-with-anti-airlock-nozzle-mpn-4730-4","provider":"Good Vibes Marina","version":"1.0","type":"link"}