{"product_id":"johnson-pump-28552-motor-cartridge-for-500-gph-bilge-pumps-black","title":"Johnson Pump 28552 Motor Cartridge for 500 GPH Bilge Pumps, Black","description":"\u003cp\u003eThe Johnson Pump 28552 Motor Cartridge is a complete replacement motor and impeller assembly designed to restore or upgrade a 500 GPH bilge pump in a matter of minutes. Rather than replacing the entire pump housing, this cartridge drops into the existing base so you can renew worn motor performance or clear out debris-fouled impellers without re-plumbing the discharge hose or re-wiring the mounting bracket. It is built in black plastic housing material and runs on 12 volt DC power, matching the standard voltage used in most recreational boat bilge circuits.\u003c\/p\u003e\u003cp\u003eWith a maximum flow rate of 8.33 gallons per minute, the 28552 cartridge is sized for 500 GPH-rated Johnson Pump bilge pump bases, making it a straightforward maintenance part for boat owners who want to keep bilge output at full rated capacity rather than let a worn motor or clogged impeller quietly reduce pumping performance. The self-contained cartridge design means the motor and impeller are serviced as a single unit, simplifying routine maintenance and reducing the chance of a mismatched motor and impeller pairing.\u003c\/p\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrand:\u003c\/strong\u003e Johnson Pump\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number:\u003c\/strong\u003e 28552\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCategory:\u003c\/strong\u003e Bilge Pump Cartridge\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eStyle:\u003c\/strong\u003e Bilge\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eColor:\u003c\/strong\u003e Black\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial:\u003c\/strong\u003e Plastic\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eVoltage:\u003c\/strong\u003e 12 Volts\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaximum Flow Rate:\u003c\/strong\u003e 8.33 Gallons Per Minute\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProduct Dimensions:\u003c\/strong\u003e 6 inches L x 3 inches W x 7.5 inches H\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight:\u003c\/strong\u003e 1 pound\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUPC:\u003c\/strong\u003e 729321285520\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eWhat is the Johnson Pump 28552 used for?\u003c\/strong\u003e The Johnson Pump 28552 is a motor cartridge that replaces the motor and impeller assembly inside a 500 GPH bilge pump, letting you restore pumping performance without replacing the entire pump housing.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat flow rate does the 28552 cartridge support?\u003c\/strong\u003e It supports a maximum flow rate of 8.33 gallons per minute, matching the rated output of a 500 GPH bilge pump base.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat voltage does this cartridge run on?\u003c\/strong\u003e The Johnson Pump 28552 operates on 12 volts DC, the standard voltage for most recreational boat bilge pump circuits.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow much does the 28552 motor cartridge weigh?\u003c\/strong\u003e This cartridge weighs 1 pound.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat are the dimensions of the 28552 cartridge?\u003c\/strong\u003e The Johnson Pump 28552 measures 6 inches long by 3 inches wide by 7.5 inches high.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat material is the 28552 cartridge made of?\u003c\/strong\u003e It is constructed of black plastic housing material.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs this a full pump replacement or just the motor?\u003c\/strong\u003e The 28552 is a cartridge containing the motor and impeller as a single serviceable unit, not a full pump housing, so it installs into an existing 500 GPH bilge pump base.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow difficult is it to install the 28552 cartridge?\u003c\/strong\u003e The cartridge is designed for a quick swap, allowing you to renew the motor and impeller in a matter of minutes without disconnecting the discharge hose or mounting bracket.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhy would I replace the cartridge instead of the whole bilge pump?\u003c\/strong\u003e If the base, mounting bracket, and plumbing are still in good condition, replacing just the Johnson Pump 28552 cartridge restores pump performance while avoiding the cost and labor of a full pump replacement.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat color is the 28552 cartridge?\u003c\/strong\u003e It is black.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eDoes the 28552 cartridge help with a clogged or debris-fouled bilge pump?\u003c\/strong\u003e Yes, the cartridge design makes it easy to clear out debris from the impeller by replacing the entire cartridge unit rather than disassembling individual components.\u003c\/p\u003e","brand":"Johnson Pump","offers":[{"title":"Default Title","offer_id":49031210434779,"sku":"MAY-28552","price":33.41,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0839\/7586\/4539\/files\/61E9Ic7hjRL.jpg?v=1785212065","url":"https:\/\/www.goodvibesmarina.com\/products\/johnson-pump-28552-motor-cartridge-for-500-gph-bilge-pumps-black","provider":"Good Vibes Marina","version":"1.0","type":"link"}