Cooling Systems - Water Discharge Fittings

Billet Aluminum Water Dump

Your Price:
$15.99

Billet Aluminum Water Dump

125-WD-750 + Option(s)

  • -8 AN Threads.
  • Outer Diameter 1".
  • Overall Length 3-1/8".
  • Your choice of Color Option. 
  • Will accept a -8 AN style fitting or 3/4" push-on hose.
  • Includes nut.

1/2" Water Pressure Dump
Your Price:
$115.99

1/2" Stainless Steel In Line Pressure Relief Valve Water Dump

128-5015

This has to be one of the coolest and simplest stream lined inventions to come along in recent times. High water pressure spikes plague numerous boats and cause catastrophic engine damage. Until now your only option was an independent pressure relief valve that you then had to plumb to a water dump to discharge the water. Thanks to the Hardin Marine team they have taken the best high flow water valve design and integrated it into a common water dump.

These dumps feature a sleek design as well as unique wrench flats machined into the body aiding in assembly during a one person installation. Constructed from 316L stainless steel. This model provides a 1/2 NPT female thread allowing for any arrangement of possible fitting and hose connections. The unit features a stainless tulip style valve that is spring loaded. The units come preset at approximately 10psi.

  • 1-7/16" Flange Diameter
  • 1/4" Flange Height 
  • 1-1/8" Shaft Outside Diameter
  • 3" Overall Length
  • 1/2" NPT Internal Thread
  • Pre-set at Aprox. 10lb Pressure Relief 
  • Approx. Flow Rate (gallons per minute) 10 psi=7 GPM, 15 psi= 13 GPM, 20 psi=19 GPM

1/2" Water Pressure Dump
Your Price:
$115.99

3/4" Stainless Steel In Line Pressure Relief Valve Water Dump

128-5016

This has to be one of the coolest and simplest stream lined inventions to come along in recent times. High water pressure spikes plague numerous boats and cause catastrophic engine damage. Until now your only option was an independent pressure relief valve that you then had to plumb to a water dump to discharge the water. Thanks to the Hardin Marine team they have taken the best high flow water valve design and integrated it into a common water dump.

These dumps feature a sleek design as well as unique wrench flats machined into the body aiding in assembly during a one person installation. Constructed from 316L stainless steel. This model provides a 3/4 NPT female thread allowing for any arrangement of possible fitting and hose connections. The unit features a stainless tulip style valve that is spring loaded. The units come preset at approximately 10psi.

  • 1-3/4" Flange Diameter
  • 1/4" Flange Height 
  • 1-1/4" Shaft Outside Diameter
  • 4" Overall Length
  • 3/4" NPT Internal Thread
  • Pre-set at Aprox. 10lb Pressure Relief
  • Approx. Flow Rate (gallons per minute) 10 psi=7 GPM, 15 psi= 13 GPM, 20 psi=19 GPM

5/8" Slip-On Hose Stainless Steel Water Discharge Fitting
Your Price:
$19.99

5/8" Slip-On Hose Stainless Steel Long Water Discharge Fitting - Long

780-1030

  • 5/8" Slip-On
  • Outer Diameter 1.47"
  • Overall Length 2.70"
  • Polished Stainless Steel
  • Stainless Steel main body and flange.
  • Includes nut and gasket.

5/8" Slip-On Hose Stainless Steel Water Discharge Fitting
Your Price:
$19.99

5/8" Slip-On Hose Stainless Steel Water Discharge Fitting - Short

780-1000

 

  • 5/8" Slip-On
  • Outer Diameter 1.57"
  • Overall Length 1.85"
  • Polished Stainless Steel
  • Stainless Steel main body and flange.
  • Includes nut and gasket.

 


3/4" Slip-On Hose Stainless Steel Water Discharge Fitting - Long
Your Price:
$21.99

3/4" Slip-On Hose Stainless Steel Water Discharge Fitting - Long

780-1035

 

  • 3/4" Slip-On
  • Outer Diameter 1.75"
  • Overall Length 3.57"
  • Polished Stainless Steel.
  • Stainless Steel main body and flange.
  • Includes nut and gasket.

 


3/4" Slip-On Hose Stainless Steel Water Discharge Fitting - Short
Your Price:
$19.99

3/4" Slip-On Hose Stainless Steel Water Discharge Fitting - Short

780-1005

 

  • 3/4" Slip-On
  • Outer Diameter 1.75"
  • Overall Length 2.10"
  • Polished Stainless Steel.
  • Stainless Steel main body and flange.
  • Includes nut and gasket.

 


1" Slip-On Hose Stainless Steel Water Discharge Fitting
Your Price:
$42.99

1" Slip-On Hose Stainless Steel Water Discharge Fitting - Long

780-1040

 

  • 1" Slip-On
  • Outer Diameter 1.97"
  • Overall Length 3.84"
  • Polished Stainless Steel.
  • Stainless Steel main body and flange.
  • Includes nut and gasket.

 

 


1" Slip-On Hose Stainless Steel Water Discharge Fitting
Your Price:
$24.99

1" Slip-On Hose Stainless Steel Water Discharge Fitting - Short

780-1010

 

  • 1" Slip-On
  • Outer Diameter 2.23"
  • Overall Length 2.00"
  • Polished Stainless Steel.
  • Stainless Steel main body and flange.
  • Includes nut and gasket.
  • This is similar to 780-350-006CHR just shorter for thinner hulls.

 

 


1-1/8" Slip-On Hose Stainless Steel Water Discharge Fitting
Your Price:
$33.99

1-1/8" Slip-On Hose Stainless Steel Water Discharge Fitting - Long

780-1045

 

  • 1-1/8" Slip-On
  • Outer Diameter 2.20"
  • Overall Length 2.15"
  • Polished Stainless Steel.
  • Stainless Steel main body and flange.
  • Includes nut and gasket.

 


1-1/8" Slip-On Hose Stainless Steel Water Discharge Fitting
Your Price:
$44.99

1-1/8" Slip-On Hose Stainless Steel Water Discharge Fitting - Short

780-1015

 

  • 1-1/8" Slip-On
  • Outer Diameter 2.20"
  • Overall Length 2.15"
  • Polished Stainless Steel.
  • Stainless Steel main body and flange.
  • Includes nut and gasket.

 


1-1/4" Slip-On Hose Stainless Steel Water Discharge Fitting
Your Price:
$43.99

1-1/4" Slip-On Hose Stainless Steel Water Discharge Fitting - Long

780-1050

  • 1-1/4" Slip-On
  • Outer Diameter 2.23"
  • Overall Length 3.8"
  • Polished Stainless Steel
  • Stainless Steel main body and flange.
  • Includes Nut and Soft Washer.

 


1-1/4" Slip-On Hose Stainless Steel Water Discharge Fitting
Your Price:
$33.99

1-1/4" Slip-On Hose Stainless Steel Water Discharge Fitting - Short

780-1020

  • 1-1/4" Slip-On
  • Outer Diameter 2.23"
  • Overall Length 3"
  • Polished Stainless Steel
  • Stainless Steel main body and flange.
  • Includes Nut and Soft Washer.

 


1-1/2" Slip-On Hose Stainless Steel Water Discharge Fitting
Your Price:
$44.99

1-1/2" Slip-On Hose Stainless Steel Water Discharge Fitting - Long

780-1055

 

  • 1-1/2" Slip-On
  • Outer Diameter 2.68"
  • Overall Length 3.8"
  • Polished Stainless Steel.
  • Stainless Steel main body and flange.

 


1-1/2" Slip-On Hose Stainless Steel Water Discharge Fitting
Your Price:
$39.99

1-1/2" Slip-On Hose Stainless Steel Water Discharge Fitting - Short

780-1025

 

  • 1-1/2" Slip-On
  • Outer Diameter 3.0"
  • Overall Length 2.70"
  • Polished Stainless Steel.
  • Stainless Steel main body and flange.

 


Single 3/4" NPT Polished Stainless Water Dump Fitting
Your Price:
$54.99

Single 3/4" NPT Polished Stainless Water Dump Fitting

420-907020

  • Constructed of Polished 316L Stainless Steel.
  • 3/4" NPT Female Thread
  • Outer Diameter 1-1/4"
  • Overall Length 4"
  • Dumps are perfect for intercooler, tailpipe, and even engine water discharge. 


Polished Stainless Steel Water Dump - Angled 1" Push-on Hose
Your Price:
$62.99

1" Angled Polished Stainless Steel Water Dump

520-AG100

  • 1" Push on hose.
  • 45 degree down slope.
  • Can act as an outdrive cooling shower, when mounted above the drive.
  • Stainless Steel.

1-1/4" Angled Polished Stainless Steel Water Dump
Your Price:
$79.99

1-1/4" Angled Polished Stainless Steel Water Dump

520-AG125

  • 1-1/4" Push on hose.
  • 45 degree down slope.
  • Can act as an outdrive cooling shower, when mounted above the drive.
    • Stainless Steel.

Dual 3/4" NPT Polished Stainless Water Dump Fitting
Your Price:
$79.99

Dual 3/4" NPT Polished Stainless Water Dump Fitting

420-907040

  • Constructed of Polished 316L Stainless Steel.
  • 3/4" NPT Female Thread
  • Outer Diameter 1-1/4"
  • Overall Length 3-7/8"
  • Overall Width 5-1/4"
  • Perfect for intercooler, tailpipe, and even engine water discharge. 


Triple -12 AN Polished Stainless Water Dump Fitting
Your Price:
$129.99

Triple -12 AN Polished Stainless Water Dump Fitting

420-907030

  • Constructed of 316L Stainless Steel.
  • Polished to a show quality mirror finish.
  • Three -12 AN Male fittings.
  • Length - 6-1/2"
  • Width - 2-1/8"
  • Depth - 3-1/2"
  • 1-3/4" center to center on the fittings
  • Perfect for intercooler, tailpipe, and even engine water discharge.