Earls UltraPro Fuel Rail Hose End -6 to 3/8" - Black - Straight w/ Fuel Ports

UltraPro Hose End -6 Hose to 3/8” OE Fuel Rail. Crimp Style assembly & must be used w/ UltraPro -6 Hose. Includes (2) 1/8" NPT Ports (one w/ -4 Male Flare). Straight - Black.

PART# 681961ERL

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This hose end must be used with Earls UltraPro Hose and Requires Crimp Style Assembly.


Earl's UltraPro Fuel Rail Hose Ends are crimp style hose ends that attach directly to the OEM style fuel rail. This special hose end eliminates the need for a special adapter and a standard style hose end. Shorter & slimmer in size than fuel rail adapter and hose end. Black anodized finish.


  • Crimp On Hose End - Attaches Directly to OEM Fuel Rail
  • Eliminates Special Adapters & Standard Hose End
  • Crimp Style Assembly - Requires Crimping Machine to Attach AN Hose
  • Crimp Sleeve Sold Separately
  • Fits Most Vehicles w/ 3/8" OEM Fuel Rail - SAE Standard Connection
  • UltraPro Hose is Ideal for Use w/ All Fuels
  • Includes -4 AN Flare & Extra 1/8" NPT Port - Ideal for Adding Fuel for Wet Nitrous Systems and / or Fuel Pressure Gauge
  • Conforms to SAE J2044 Specifications


Adapter TypeHose End
Assembly MethodCrimp On
Compatible HoseUltraPro
FinishAnodized Black
Hose End Series68
Hose End Size6 AN
Hose Size6 AN
Max Working Pressure250 PSI
Port Size(2) 1/8" NPT
Product TypeFuel Rail Hose End
Tube Size3/8"
Part Number681961ERL

Tech Resources

This hose end must be used with Earls UltraPro Hose and Requires Crimp Style Assembly.
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      Some parts are not legal for use in California or other states with similar regulations.

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