
Product Information
Filtration - Manufacturing - Custom Engineering
FTG, Inc.
15405 Cornet St.
Santa Fe Springs, CA 90670-5533
sales@ftginc.com ~ (562) 865–9200
To purchase assemblies & parts please visit: https://racorparts.com
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)
Order Assemblies and Replacement Parts:
Phone: (562) 865–9200 / Fax: (562) 403-1700 / E-mail: Sales@ftginc.com / or Visit www.RacorParts.com

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Assemblies - Part Numbers
6400 Fuel Heater Water Separator, no internal thermostat
6400
6400 Fuel Heater Water Separator, S6464 element, no internal thermostat
6400N
6401 Fuel Heater Water Separator, with internal thermostat
6401
6401 Fuel Heater Water Separator, S3226P element, with internal thermostat
6401N
Replacement Parts & Accessories - Part Numbers
Coolant Head Kit (includes #3)
1
RK 16070
Standard Elbow Fitting (5/8" hose barb)
2
913-010-H10
Optional Elbow Fitting (3/4" hose barb)
"
913-010-H12
Coolant Head O-ring
3
16083
Priming Port Plug Kit
4
RK 11911
Heat Exchanger Kit (includes #'s 8 and 9)
5
RK 16007
L-Bracket Kit
6
RK 16073
Thermostat Valve Kit (includes #3)
7
RK 16086
Coolant Head O-ring
8
16083
Heat Exchanger Base Seal
9
16029
Head Assembly Kit (includes #'s 8 and 9)
10
RK 16076
Element Gasket (for S6464 water removing element)
11
20505
Element Gasket (for S3226P, 30 micron element)
12
40685
Droplet Water Removing Element (includes #11 and 14)
13
S6464
30 Micron Filter Element (Includes #12 and 14)
"
S3226P
Bowl Gasket
14
30965
Replacement Bowl & Drain Kit (includes #'s 14 to 17)
15
RK 30063
Replacement 12 VDC Heated Bowl & Drain Kit (includes #'s 14 to 17) NOTE: In-bowl heater may require a heater relay kit #21
"
RK 30900
Replacement 24 VDC Heated Bowl & Drain Kit (includes #'s 14 to 17) NOTE: In-bowl heater may require a heater relay kit #21.
"
RK 30925
Self-venting Drain Valve Kit
16
RK 30476
Water Port Plug Kit
17
RK 20126
Not Shown: Complete Seal Service Kit
18
RK 16040
Not shown: Water Detection Kit for #19: 12 vdc under dash module, light when water is detected.
20
RK 20725
Not shown: Water Probe Kit, requires #20 RK 20725 or RK 20726 water detection kit
19
RK 30964
Water Detection Kit for #19: 12 or 24 vdc 2-1/2" diameter gauge-type module, light & buzzer when water detected.
"
RK 20726
Heater Relay Kit - 12 Volts
21
RK 11861
Heater Relay Kit - 24 Volts
"
RK 11862

20

21
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