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 Racor Fuel Filter/Water Separator for General
 Motors 2500HD Truck


The Racor RK32313 Fuel Filter / Water Separator is a supplemental primary filtration system for users requiring additional filtration capacity. This Racor designed fuel filter is capable of removing free and emulsified water and solids down to 10 micron at 98% efficiency. Mounted on the frame the Racor filter supplies cleaner fuel to the on-engine fuel filter. This extends the life of the on-engine filter.

Dirt and water are practically unavoidable in stored fuel, causing microbial growth, corrosive acids, electrolysis, and rust.  These contaminants can plug filters, corrode components, decrease efficient combustion, and can cause engine shutdown or system failure. You can combat these problems by installing a Racor RK32313.

The Racor RK32313 is manufactured to meet the rugged environment of an under vehicle mounting location. A filter guard option part number RK32347 is available to offer additional filter protection.



The Racor RK32313 is for General Motors pickups with extended cab or crew cab with the 6.6L Duramax diesel engines. It is useful for those pickup owners interested in further protecting their investment and who are suspicious of the quality of the fuel that goes into their tank.


Features and Benefits:

  • Pre-filter with water separation
  • 10-micron rating at 98% efficiency
  • Heavy-duty corrosion resistant construction
  • See-through contaminant collection bowl with drain
  • 200 watt in-bowl fuel heater
  • Electronic water-in-fuel probe is fully integrated with the existing engine monitoring system
  • Complete kit includes custom components engineered by Racor and Parker for the 2500HD truck



 Racor filter


 Max Flow

90 gph / 341 lph

 Max psi / kPa

30 psi / 207 kPa*




Self venting


12 VDC 200 watt

 Water sensor

Deash indicator

 Filter guard


 * Installed on the vacuum side of the transfer pump



These photos show the installation of the Racor filter kit RK32313 and the optional filter guard shield RK32347.


Racor filter


Racor filter