Marine Pumps

  1. March LC Series Pump Freeze Plug - 0125-0011-1000

    $1.84
  2. March Replacement O-Ring - 0125-0012-1000

    $1.84
  3. T-H Marine Aerator Filter Dome

    $12.47 - $18.62
    0
  4. Johnson Aqua Jet WD/WPS Side Clips (2-Pack) - 09-46956

    $12.87
  5. Attwood Adjustable Aerator Spray Head - 4125-7

    $13.68
  6. Jabsco Electric Clutch Pump Screw (3-Pack) - 91005-0040

    $13.82
  7. 30% off

    Rule Livewell Pump Stainless Steel Debris Strainer - 73

    $20.32
    $14.22
    0
  8. Groco Replacement Impeller - CP-55

    $16.28
  9. T-H Marine Aerator Screen Strainer Stainless Mesh

    $17.26 - $19.69
    0
  10. T-H Marine Directional Flow Aerator Head

    $17.50 - $20.24
    0
  11. March Replacement Ceramic Pump Shaft - 0130-0024-1000

    $17.71
  12. Jabsco 6050-Series Utility Pump Slinger O-Ring - 6398-0000

    $18.35
  13. T-H Marine Straight Head Aerator Spray Head Black - 3/4" - AHV-1-DP

    $21.56
    0
  14. Moeller Manual Siphon Hose - 042907

    $22.10
    0
  15. March LC-2M-MD Replacement Rear Housing & Plug - 0125-0131-0100

    $22.68
  16. Attwood Non-Adjustable Aerator Spray Head - 4118A5

    $24.75
  17. Rule Float Control Valve - 75

    $27.05
  18. Whale Water Pump Service Kit - AK2050

    $27.54
    6
  19. Seachoice Self-Priming Siphon Hose - 6' - 19141

    $28.11
    1
  20. Johnson Washdown Pump Spray Pistol - 61155

    $28.21
  21. Johnson PUMProtector Universal Strainer - 09-24652-02-CN

    $28.70
  22. March AC-5C/5M-MD Replacement Rear Housing with Thrust Washer - 0150-0031-0100

    $28.77
  23. Seachoice Bait Tank Plumbing Kit - 89631

    $28.78
  24. March 2CP Replacement Impeller - 0125-0055-0100

    $28.78
  25. Whale Pump Head Assembly Clamp Ring Kit - AS1562

    $30.19
    4
  26. March 3AP/3CP Replacement Impeller with Bare Ceramic Magnet - 0130-0020-0100

    $31.60
  27. Tera Pump Fuel and Liquid Transfer Pump - Manual - TRM20

    $31.62
    0
  28. Rule Standard Bilge Pump

    $33.01 - $398.25
    14
  29. Whale Pump Piston and Spring Assembly Kit - AS0556

    $33.01
    0
  30. Seachoice Bilge Pump

    $33.03 - $65.47
  31. T-H Marine EZ Pump Advanced Water Pick-Up System

    $34.42
    0
  32. Rule Shower Drain Box Replacement Lid - 1242R

    $34.44
    1
  33. March LC-3CP/3M-MD Replacement Rear Housing & Plug Assembly - 0130-0019-0100

    $34.44
  34. March LC-2CP-MD Replacement Rear Housing & Plug - 0125-0057-0100

    $34.44
  35. SHURflo Non-Automatic Bilge Pump

    $35.83 - $59.80
    1
  36. T-H Marine Max-Air Livewell Venturi Aerator - MAV-2KT-DP

    $35.83
    0
  37. Johnson PUMProtector Inlet Strainer - 09-24653-02-CN

    $35.83
  38. Attwood Hand Bilge Pump - 11596-2

    $35.85
    1
  39. Attwood Tsunami Mk2 Non-Automatic Bilge Pump

    $38.65 - $79.54
  40. Johnson Pump Aqua Series Replacement Cartridge Motor

    $40.06 - $69.67
  41. Beckson Thirsty-Mate Hand Pump

    $41.47 - $116.23
    7
  42. Johnson Pump Aqua Void Bilge Pump

    $41.47 - $54.16
  43. Seachoice Universal Bilge Pump

    $41.51 - $45.74
  44. 24% off

    Whale Babyfoot Foot-Operated Manual Galley Pump - GP4618

    $55.79
    $42.00
    2
  45. TRAC Outdoors Portable Non-Automatic Bilge Pump - 69341

    $42.88
    2
  46. Seachoice Mini Bilge Pump - 19261

    $42.88
  47. Jabsco Manual Bilge Pump Through Deck Kit - 29279-0000

    $44.29
    0
  48. Whale Water Pump Service Kit - AK1557

    $44.29
    0
 
1 / 7Next

About Marine Pumps

Pumps

An extensive lineup of marine pumps is available today from Defender Marine. Pump applications include plumbing, mechanical, and safety pumps plus a full selection of parts and marine pump switches. From marine bilge pumps to oil extractors, our selection is unmatched!

Why so many pumps?

Water is a great source of power and boats, in the loosest terms, tame that power. Marine pumps enable your boat to bring water safely into cool engines and motors. Pumps filter and grind on board fluids before they push them overboard or into holding tanks. Pumps move fluids from one component to another and from here to there within a closed environment like an engine.

Pump it up!

Defender offers a full selection of plumbing pumps to include foot pumps and electric freshwater pumps, sump and gray water pumps for the shower and macerator pumps down below. Mechanical pumps support water cooler engines and air conditioner circulation, fuel pumps for many diesel engine types, and even engine oil change pumps. Fishermen are never left out at Defender as we offer a superior choice of Livewell pumps and freshwater washdown options for the cockpit.

Is it legal?

The US Coast Guard has minimal outlines for boat safety, of course. But did you know that one of those safety outlines is just about boat bilge pumps? Boats are always taking on water - rainwater, seepage or even a wave over the bow all add to water in the bilge which can eventually sink your best girl. Safety pumps at Defender meet the USCG standards - automatic marine bilge pumps, handheld pumps, and fixed electric pumps add up to following the law while you're on the water.