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Macerator Pumps & Parts

Macerator Waste Pumps are used to empty waste holding tanks on RVs, boats, and similar vehicles. By breaking soft waste into smaller pieces, the waste can easily pass through a regular hose, making the job of emptying waste tanks much easier. By using a macerator pump, and flushing your tank with water periodically, you can virtually eliminate any clogging in your waste system.

Flojet/Jabsco 18500 series Macerator pumps grind sewage waste down to particles 1/8" diameter or less, allowing easy tank pumping through a standard 5/8" garden hose (or other similarly sized hose). These pumps will empty most recirculating toilets in under two minutes, and a standard 30 gallon holding tank in three minutes or less. Their self-priming design allows installation above the tank, if that is most convenient. (NOTE: Macerator pumps are designed ONLY to handle soft waste and tissue. Solid objects, or sanitary napkins, can clog or damage the pump, and void any applicable warranty.)

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  1. 18594-1000

    18594-1000 Jabsco Macerator Inlet Housing 1.5" Hosebarb/NPT Male

    $53.52
    • Replacement macerator housing
    • Part #4 on exploded diagram
    • Fits Jabsco 22130, 18590-2092, 18590-2094 macerator pumps
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  2. 17288-0000

    17288-0000 3.75" Flojet/Jabsco Macerator Pump Stud (pair)

    $17.76
    • Replacement 3.75" motor mount stud (2)
    • Part #13 on exploded diagram
    • Fits Flojet/Jabsco 18590 and 18550-series pumps
    • IMPORTANT: Measure your old studs to make sure they are 3.75"
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  3. 12316-1002

    12316-1002 Flojet/Jabsco Macerator Small Wear Plate

    $19.02
    • Replacement small wear plate.
    • Part #9 on exploded diagram
    • Fits 18690-0000, 22130-2721, 18555-000, 18590-2092, 18590-2094 macerator pumps.
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  4. 20030-415

    20030-415 Flojet Wire Harness Kit w/ Connectors

    $18.22
    • Replacement Flojet wiring harness
    • Fits 18555 series pumps
    • Includes necessary connectors
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  5. 1040-0000

    1040-0000 Flojet/Jabsco Macerator Pump Shaft Seal

    $14.05
    • Replacement shaft/lip seal
    • Fits Flojet 18550 and 18555 macerator pumps
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  6. 6303-0003

    6303-0003 Flojet/Jabsco Macerator Impeller Kit

    $24.37
    • Flojet and Jabsco Macerator Impeller repair kit
    • Includes impeller, gaskets, o-rings, and lubricant
    • See below for list of compatible pump models
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  7. 18598-2000

    18598-2000 Flojet/Jabsco Macerator Service Kit, Garden Hose

    $65.82
    • Service/Rebuild kit for garden hose macerator pumps
    • Includes: Gaskets, Impeller, Body, and Seal
    • Diagram/Instructions included
    • Order 17288-0000 for 3 3/4" studs.
    • Order 17288-0010 for 3 1/8" studs.
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  8. 18598-1000

    18598-1000 Flojet/Jabsco Macerator Service Kit, Hose Barb

    $60.04
    • Gaskets, Impeller, Body, and Seal
    • Diagram/Instructions included
    • See below for detailed model list
    • Order 17288-0000 for 3 3/4" studs.
    • Order 17288-0010 for 3 1/8" studs.
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