FASS FLK-S03 Double Return Line

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FASS Fuel Systems


FASS FLK-S03 Double Return Line Class 8 Fuel Return Line

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Sale price$104.50 Regular price$110.00

FASS FLK-S03 Double Return Line Class 8 Fuel Kit

The FASS FLK-S03 Double Vent Return Fuel Line makes the installation on your Class Eight Fuel Pump with dual fuel tanks very straightforward. FASS FLK-S03 Class 8 Fuel Line Kit Double Return Line Fuel Kit gives the Class 8 operator a straightforward installation kit will everything you need to install your FASS Fuel Air Separation System. Instead of searching for all the hose and fittings required, this package provides everything necessary for saving time.

The FASS FLK S-03 Fuel Line Kit is designed for the following diesel engine applications:

  • CAT 3406 mechanical
  • CAT 3406A
  • CAT 3406B
  • CAT 3406E
  • CAT C16
  • Cummins (Small or Big Cam I; II; III; IV or NTC/STC; L10)
  • Cummins M11
  • Cummins N14
  • Cummins ISX
  • Cummins Signature Series Diesels
  • Detroit Diesel 12.7L DDEC I; II; III or IV
  • Detroit Diesel 14L DDEC I; II; III or IV
  • John Deere 4430 6.6L 404 ci
  • Mercedes MBE-4000
  • Paccar MX 13
  • Paccar PX 7
  • Paccar PX 9
  • Volvo VED

 The FASS FLK-S03 Mounting Kit Contains the following:

  • One Twenty-Foot Section Of FASS FL-1005 5/8" O.D. Nylon Fuel Line
  • One CA-1001 1/2" JIC To 5/8" Tube Fitting
  • One 69749 3/8" NPT To 5/8" Tube 90 Degree Fitting
  • Two 69722 3/8" NPT To 5/8" Tube Fittings
  • Two 06123-1208 1/2” NPT TO 3/4” NPT Fittings
  • Two CBA-1001 Fittings
  • One 69749 3/8" NPT To 5/8" Tube 90*
  • Three Compression Fittings
  • Two 5/8" Fuel Line Tube Clamps
  • Two Self Tapping Metal Screws
  • Two NPT-Y-1001 Fittings
  • Two 10-260 1/4” NPT TO 3/8” NPT Bushings

FASS FLK-S03 Double Return Line Kit Installation Instructions

NOTE: This FASS FLK-S03 Double Return Line is a FINAL SALE ITEM and cannot be returned!

  • by KLM Performance
  • Engine : Large Displacement Diesel Engines with a FASS Lift Pump and Dual Fuel Tanks!
  • Flow Rate: 100 to 290 Gallons Per hour
  • Item Number: FASS FLK-S03
  • Make: Universal
  • Model: Big Rig Class 8
  • Year
  • Manufacturer Part No: FASS FLK-S03
  • Product Application: Class 8 Semi Trucks With Dual Saddle Fuel Tanks
  • Height: 4
  • Width: 15
  • Brand: FASS Fuel Systems
  • FAQ: Does the FASS FLK-S03 speed up the installation of a FASS Fuel Air Separation Lift Pump? Yes, it does by providing a means to route the FASS FLK S03 Dual return line from the FASS Fuel System to your dual saddle tanks. Please make sure you have identified the correct fuel system on your truck. On the 1994 and newer trucks, including the Volvo and Mercedes Engines, the FASS FLK-S03 Double Draw or Double Return Line System. FASS fuel line kit (FLK-S03) or Double Vent Return Line Kit for trucks without the extra port of the fuel tanks should have all of the components required to install this fuel line kit. Please note that based on the multiple truck configurations, this is not a guarantee.
  • Part NumberFLK-S03
  • Manufacturer: FASS
  • Product Note: The purchase of the FASS FLK-S03 Fuel Line Kit ensures that your installation process will be greatly implied by having all of the components needed for installation in one kit.

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