Marine

Johnson 32903 Bilge Pump Cartridge with Dura-Port — 1000 GPH

4.8 12 reviews 1 min read

Johnson 32903 Bilge Pump Cartridge with Dura-Port — 1000 GPH

Product description

This listing covers the Johnson 32903 cartridge bilge pump assembly with the durable Dura-Port outlet. The package includes the pump cartridge and the Dura-Port connector; mounting hardware is not included and it is designed to drop into compatible housings or brackets. The unit is finished in black and rated at 1000 gallons per hour for typical bilge and washdown applications.

Constructed from corrosion-resistant composite plastics and engineered components, the cartridge is intended for marine environments and routine use. It has a universal-fit design so it can be swapped into many cartridge housings; the package dimensions are 10 inches L x 9 inches W x 8 inches H and the item package weight is 8 pounds. Country of origin: China; fit type: universal fit.

Installation is straightforward: slide the cartridge into the housing, connect the Dura-Port slip-fit outlet to your discharge hose, and wire to the appropriate power source or automatic switch. It is best used with a continuous water supply while running to avoid running dry and potential overheating; suitable for bilge pumping, rainwater removal, and washdown duties.

Pros

  • High 1000 GPH flow for quick dewatering
  • Compact cartridge fits many housings
  • Durable Dura-Port connection for simple hose hookup

Cons

  • Can overheat if operated without water
  • Not designed to handle a large hull breach
  • Requires a compatible housing or bracket for installation

VerdictA robust, no-frills 1000 GPH cartridge pump intended for regular bilge use. It delivers strong flow, installs quickly into compatible housings using the Dura-Port connection, and is compact enough for tight bilge spaces. Keep it supplied with water while running to avoid overheating; otherwise it’s a reliable option for rain, washdown, and routine dewatering tasks.

Reviews

  1. Marty 5/5

    Runs hot if dry

    Will overheat if left running without pumping water; the Dura-Port made swapping cartridges easy.

  2. Mr. Lindsay Andrews 5/5

    Space-saving unit

    Mounts to the bilge floor and works with an automatic switch.

  3. WILLIAM BARKLEY 5/5

    Quick swap-in

    Snapped into place and fit perfectly; would recommend for replacements.

  4. Gabe Smith 5/5

    Does the job

    Operates as expected; straightforward hookup and no extra features.

  5. Duce Q 4/5

    Dependable build

    Sturdy construction.

  6. Cindy j Johnson 5/5

    Exactly what I wanted

    Matched the specifications and fit my setup perfectly.

  7. Kevin Frazier 5/5

    Powerful performer

    Moves water fast — empties my tank in very little time.

  8. Tony 5/5

    Well designed

    Easy to install, quiet in operation and quite powerful; handles rain and washdown well, but won't handle a large hull breach.

  9. Jason Shipes 5/5

    As advertised

    Satisfied with the purchase — functions exactly as intended.

  10. G.M. 4/5

    Good value for our boat

    Well-made with multiple installation options; arrived packaged securely.

  11. JL 5/5

    Warranty coverage

    Performs well and comes with multi-year coverage.

  12. Jason Lindstrom 5/5

    Arrived fast

    Exactly the cartridge I needed.

Comments

No comments yet.

Sign in or sign up to comment.

  1. BOSS MCKGB450B.6 Marine Gauge Stereo with 6.5-Inch Speakers (Pair)
    Marine

    BOSS MCKGB450B.6 Marine Gauge Stereo with 6.5-Inch Speakers (Pair)

    4.4 13 reviews Compact marine head unit bundled with a pair of 6.5" weatherproof speakers. Bluetooth streaming, USB/AUX inputs, AM/FM and NOAA reception, IPX6-rated receiver, and front/rear/sub outputs for multi-speaker setups.
  2. 1200 lb Swing-Back Trailer Tongue Jack with 6" Wheel
    Marine

    1200 lb Swing-Back Trailer Tongue Jack with 6" Wheel

    4.4 8 reviews A heavy-duty swing-back trailer tongue jack rated for 1200 lbs with a 6-inch nylon wheel, 10-inch travel and 12.8"–22.8" adjustable height. Galvanized, powder-coated steel construction, detachable handle, and a swivel, lockable bracket for horizontal or vertical transport. Includes basic mounting ha
  3. Paul Rubens Squirrel-Hair Watercolor Mop Brush — Size 4 Round
    Marine

    Paul Rubens Squirrel-Hair Watercolor Mop Brush — Size 4 Round

    4.7 11 reviews A hand-shaped squirrel-hair wash/mop brush built to carry a lot of water and pigment for sweeping washes and controlled strokes. Features a metal ferrule, glazed handle, and elegant black gift box; intended for watercolor, gouache, acrylic and oil techniques.
  4. Outboard Engine Kill Switch Lanyard for Mercury/Tohatsu Motors
    Marine

    Outboard Engine Kill Switch Lanyard for Mercury/Tohatsu Motors

    4.9 8 reviews Compact outboard kill switch lanyard designed for small engines. Braided nylon cord with ABS housing and aluminum alloy fittings. Tool-free mounting to throttle or tiller handles, stops the engine when the lanyard is pulled and is compatible with many small petrol engines and personal watercraft.
  5. 2-Pack Large Rubber Boat Dock Line Snubbers — Marine Snubbers
    Marine

    2-Pack Large Rubber Boat Dock Line Snubbers — Marine Snubbers

    2.7 7 reviews Two large black rubber snubbers designed to absorb shock from wind, wakes, and waves to ease load on dock lines. Fits ropes from 9/16" (14 mm) to 3/4" (18 mm) and is intended for boats under 40 ft. Tool-free installation with a double-locking grip; rubber is thickened and formulated for UV and seawa
  6. CARVALAX 45° Eccentric Flaring Tool Kit — Imperial Clamp 3/16"–3/4"
    Marine

    CARVALAX 45° Eccentric Flaring Tool Kit — Imperial Clamp 3/16"–3/4"

    4.4 7 reviews A seven-size imperial flaring kit that makes 45° eccentric flares in soft metals. Forged body, hardened steel cone, ergonomic handle and single clamp screw. Supplied in a molded case for HVAC, refrigeration and plumbing use.
  7. MECMO 50A-to-30A/15A RV Power Y-Adapter (NEMA 14-50P to TT-30R & 5-15R)
    Marine

    MECMO 50A-to-30A/15A RV Power Y-Adapter (NEMA 14-50P to TT-30R & 5-15R)

    4.8 12 reviews A three-way power adapter that converts a 50-amp NEMA 14-50P inlet into a 30-amp TT-30R and a standard 15-amp 5-15R outlet. Built with 10AWG x3 STW conductors, molded ends and a heavy PVC jacket, it lets RVs, trailers or household devices draw from a 50A campground, generator or compatible EV statio
  8. Emergency Marine Throwable Foam Cushion — Boat Flotation Seat
    Marine

    Emergency Marine Throwable Foam Cushion — Boat Flotation Seat

    4.9 8 reviews USCG-approved Type IV throwable flotation cushion that doubles as an extra boat seat. Constructed with a 200D polyester cover, polypropylene grab strap and 7mm EPE foam in 10 layers. Lightweight, durable, highly visible and suitable for aluminum boats, kayaks, pontoons, canoes, docks and pools.
  9. Sierra 6-inch High-Capacity 10-Micron Fuel/Water Separator Filter
    Marine

    Sierra 6-inch High-Capacity 10-Micron Fuel/Water Separator Filter

    4.9 11 reviews A 6-inch, high-capacity fuel/water separator rated at 10 microns that delivers 90 GPH flow and removes over 99.8% of emulsified water. Designed to fit high-horsepower Yamaha outboards (11/16-16 thread) and replace several OEM part numbers.
  10. FSC-Certified 2-Ply Quick-Dissolve Toilet Paper for RVs & Marine — 24 Rolls
    Marine

    FSC-Certified 2-Ply Quick-Dissolve Toilet Paper for RVs & Marine — 24 Rolls

    4.9 7 reviews Bulk pack of 24 quick-dissolving, 2-ply toilet paper rolls (300 sheets per roll, 4 x 4-inch cores) made from virgin fiber with a quilted texture. Designed to break down reliably in RV and marine waste systems while remaining soft and absorbent for everyday use.