The self-priming flexible impeller pump is the industry recognized technology standard for leisure and work boat engine cooling. Being an original Jabsco, you are assured the highest grade bronze and stainless steels are used in keeping your engine at peak operating temperature. Flexible impeller pumps are ideally suited to washdown, circulation and fire duty applications onboard or dockside. Where needed, these pumps have easily replaced cams, end covers and wearplates for extended product life.FeaturesMechanical shaft seal, extends service lifeO’ Ring end cover sealSealed-for-life ball bearingInterchangeable with previous 52020 seriesSuitable for direct or pulley driveSealed bearings for longer lifeConstructed from marine quality bronze and stainless steelEasy to service and maintainWill tolerate abrasive wearHandles hard and soft solids without cloggingCan pump in either directionWill not airlockSpecificationsPump size: 20Mount type: FootBearing type: Sealed ballOutput: 4 GPM (18 LPM)Port type:BSPPort size: 3/8″ (10 mm)Self-priming from dry: Up to 13′ (4.1 m)Nominal speed: @ 1500 rpmMaximum head: 43′ (13 m)Length: 3 3/4″ (9.5 cm)Width: 3″ (8 cm)Height: 3 1/2″ (8.5 cm)Weight: 3 lb (1.4 kg)Materials of ConstructionBody material: BronzeImpeller material: NeopreneShaft material: 316 Stainless steelShaft seal material: Mechanical, carbon ceramicService Kits and Common PartsGasket/O-Ring – X5251-050Impeller – 653-0001Water Seal – 96080-6024End Cover Screws – X3001-174FSpare Parts and AccessoriesGasket & Impeller KitHose Adapters with 3/8″ BSP taper-threaded connectionDrawing and SpecificationsItemPart NamePart NumberQty1BearingSP2601-045722Bearing Shield51516-000014End Cover KitSK501-000015ScrewX3001-147F36Impeller & Gasket Kit653-0001-P17Seal Assembly96080-602419Retaining RingSP1701-4438110Retaining RingSP1701-4440112ScrewSP1010-061Technical FileDatasheet .input-wrapper a { text-decoration: none; / Removes underline / background-color: transparent; / Ensures no background color / } .input-wrapper a:hover { text-decoration: underline; / Adds underline on hover / background-color: transparent !important; / Removes grey highlight / }