6400 Nautilus Fuel Filter-Heater/ Water Separator
6400 Nautilus Fuel Filter-Heater/Water Separator Series
Fuel / Coolant Port Sizes: 7/8"-14 SAE / 5/8" Hose Barb
Maximum Diesel Flow Rating:
With S3226P Element: 75 gph (284 lph)
With S6484 Element: 120 gph (454 lph)
Assemblies - Part Numbers
6400 Fuel Heater Water Separator, no internal thermostat
6400 Fuel Heater Water Separator, S6464 element, no internal thermostat
6401 Fuel Heater Water Separator, with internal thermostat
6401 Fuel Heater Water Separator, S3226P element, with internal thermostat
Replacement Parts & Accessories - Part Numbers
Coolant Head Kit (includes #3)
Standard Elbow Fitting (5/8" hose barb)
Optional Elbow Fitting (3/4" hose barb)
Heat Exchanger Kit (includes #'s 8 and 9)
Thermostat Valve Kit (includes #3)
Head Assembly Kit (includes #'s 8 and 9)
Element Gasket (for S6464 water removing element)
Element Gasket (for S3226P, 30 micron element)
Droplet Water Removing Element (includes #11 and 14)
30 Micron Filter Element (Includes #12 and 14)
Replacement Bowl & Drain Kit (includes #'s 14 to 17)
Replacement 12 VDC Heated Bowl & Drain Kit (includes #'s 14 to 17) NOTE: In-bowl heater may require a heater relay kit #21
Replacement 24 VDC Heated Bowl & Drain Kit (includes #'s 14 to 17) NOTE: In-bowl heater may require a heater relay kit #21.
Self-venting Drain Valve Kit
Not Shown: Complete Seal Service Kit
Not shown: Water Probe Kit, requires #20 RK 20725 or RK 20726 water detection kit
Not shown: Water Detection Kit for #19: 12 vdc under dash module, light when water is detected.
Water Detection Kit for #19: 12 or 24 vdc 2-1/2" diameter gauge-type module, light & buzzer when water detected.
Heater Relay Kit - 12 Volts
Heater Relay Kit - 24 Volts
6400 Nautilus part numbers on this page: 6400, 6400N, 6401, 6401N, RK 16070, 913-010-H10, 913-010-H12, 16083, RK 11911, RK 16007, RK 16073, RK 16086, 16083, 16029, RK 16076, 20505, 40685, S6464, S3226P, 30965, RK 30063, RK 30900, RK 30925, RK 30476, RK 20126, RK 16040, RK 30964, RK 20725, RK 20726, RK 11861, RK 11862,Gasket S6464, Gasket S3226P, Bowl Gasket, Bowl & Drain, Heated Bowl & Draint, Self-venting Drain Valve, Water Port Plug, Seal Service, Water Probe, Water Detection, under dash module, gauge-type module, light & buzzer. Heater Relay, Heat Exchanger Base Seal, Coolant Head O-ring, Thermostat Valve, Coolant Head, Coolant Head O-ring, Priming Port Plug, Heat Exchanger, L-Bracket
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