Pump - Par Max Hotshot HD4 Washdown Pump - 12v J20-238

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The HotShot HD4 features a wider diameter motor with a powder coated shell, cast aluminum endbells and lower housing to improve pressure capability and life.

Pumping 4 gallows per minute at almost 60psi, this is an extremely reliable high-flow and high-pressure diaphragm pump.

The HotShot HD4 will provide years of clean decks and satisfaction.

Kit includes: 

  • 1 x HotShot HD4 Washdown Pump
  • 2 x 1/2" (13mm) straight hosebarbs
  • 2 x 3/4" (19mm) straight hosebarbs
  • 1 x 3/4" GHT fittings
  • 1 x 90° 40 mesh quick connect strainer
  • 1 x Deluxe trigger nozzle & quick connect hose adapters


  • Co-molded diaphragm technology for long life and durability 
  • HD model featuring heavy duty, motor and cast aluminum lower housing which allow for long-life, even at high pressures 
  • Efficient and quiet operation 
  • Integrated, sealed pressure switch for on-demand operation 
  • Self-priming allows for installation versatility 
  • Can run dry without damage 
  • Self‐Priming 
  • Quick connect ports for ease of installation, servicing, and maintenance 
  • Vibration dampening mounting feet 
  • A plastic housing protects the motors from corrosion.
  • Provides exceptional performance in an economical footprint.


JPW SKU J20-238 J20-239
Jabsco Part No. Q401J-118N-3A Q402J-118N-3A
Replaces Old Versions J20-138
(32605-0092, 32605-0392, 31700-0092, 31700-0392, 82405-0092)
(32605-0094, 32605-0394, 32605-7004, 32900-0094, 82405-0094)
Voltage 12V 24V
Open Flow 4 GPM
(15.1 LPM)
(15.1 LPM)
Shut-off Pressue 60 PSI
(4.1 bar)
60 PSI
(4.1 bar)
Max Current Draw 11A 6A
Recommended Fuse Size 20A 10A


Motor Design Brushed, permanent magnet TENV
Pumphead upper housing material Fiber reinforced polypropylene
Diaphragm Co-molded TPV
Check Valves EPDM
Max Inlet Pressure 30 PSI (2.1 Bar)
Fluid Temp Range 32°F – 140°F (0°C – 60°C)
Dry Self-priming Capability 8ft min (2.4m min)
Certifications CE, ISO8846, RCM
Ingress protection IPX6
Warranty 3 years

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