Jabsco 24V Self-Priming Marine Macerator Pump – 12 GPM (18590-2094)
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Jabsco 24V Self-Priming Marine Macerator Pump – 12 GPM (18590-2094)
A heavy-duty 24V macerator pump built for holding tank discharge on larger vessels and commercial applications running 24V electrical systems. The Jabsco 18590-2094 delivers 12 GPM flow with a four-bladed chopper, triple-sealed motor, and run-dry protection — engineered for reliable, clog-resistant operation in demanding marine environments.
Key Features
- 24V DC operation: Designed for 24V electrical systems common on larger cruisers, twin-engine powerboats, and commercial vessels.
- 12 GPM flow rate: High-volume discharge clears holding tanks quickly and efficiently.
- Four-bladed chopper: Macerates waste thoroughly to minimize clogging in the discharge line.
- Triple-sealed motor: Three-stage sealing prevents both internal and external motor corrosion — built for long-term reliability in salt water environments.
- Run-dry protection: Self-priming pump can operate safely without liquid present, protecting the motor during discharge cycles when the tank runs low.
- Self-priming to 4 ft (1.2 m): Primes automatically without manual intervention, even when mounted above the tank outlet.
- Ignition-protected: Complies with USCG 183.410 and ISO 8846 Marine ignition protection standards — safe for installation near fuel systems and in enclosed spaces.
Specifications
- Part Number: 18590-2094
- SKU: 6-185902094
- Voltage: 24V DC
- Flow Rate: 12 GPM
- Self-Priming Lift: Up to 4 ft (1.2 m) vertical
- Chopper: Four-bladed
- Motor Sealing: Triple-sealed
- Certifications: USCG 183.410, ISO 8846 Marine (ignition protection)
- Dimensions: 11⅜" L × 4¾" W × 3⅝" H
- Inlet Port: 1½" hose barb + 1½" NPT
- Discharge Port: 1" hose barb
- Weight: 5.2 kg (11.5 lbs)
Related Products
- Jabsco 18590-2092 – 12V Self-Priming Macerator Pump, 12 GPM — The 12V version of this pump for vessels with standard 12V electrical systems.
- Seachoice 12 GPM Marine Macerator Pump – 12V, 12A (17888) — Alternative 12V macerator with universal mounting bracket and easy-access unclogging knob.
- Johnson Pump 12V Macerator Pump — Another 12V macerator option for comparison.
- Jabsco Type III MSD Waste Management System – Holding Tank & Macerator (38110-0092) — All-in-one holding tank and macerator system for vessels building a complete sanitation setup.
Parts Desk Insights
The 18590-2094 is the 24V version of Jabsco’s most popular macerator pump — specify this one only after confirming the vessel runs a 24V electrical system. The 12V and 24V models are not interchangeable, and the 12V version (18590-2092) is the far more common choice for recreational boats. The triple-sealed motor and run-dry protection are the standout durability features — worth highlighting for customers who’ve had cheaper macerators fail from dry running or corrosion. The ignition-protection rating is important if the pump is going near the engine compartment or a fuel tank; confirm this with the customer before recommending a non-rated alternative. Inlet accepts both 1½" hose barb and 1½" NPT, which gives flexibility on the plumbing connection.
Shipping information
In-stock and OEM parts: ship same or next business day.
Locally warehoused items: ship within 3–4 business days.
Special-order items: timeline confirmed after order.
Returns & warranty
Returns & Satisfaction Guarantee
We stand firmly behind the quality of every product we sell. Your confidence matters to us — and we back it with a straightforward 30-Day Satisfaction Guarantee.
If you are not fully satisfied, you may request a return within 30 days of delivery. All returns must receive pre-approval prior to being sent back. Unauthorized returns will not be accepted.
To qualify for a return:
Item must be in new, unused condition
Product must be in its original packaging
All parts, components, hardware, manuals, and accessories must be included
Packaging must be undamaged and suitable for resale
Important:
Electronics are strictly inspected. No returns on open-box electronics. Exceptions may apply only with prior written approval. Any electronic unit that has been installed, powered, activated, or altered may not be eligible for return.
We are serious about product integrity — and equally serious about taking care of our customers. If there is ever a product issue, contact us immediately so we can make it right.
For return authorization, please contact our support team before shipping anything back.