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Earl's UltraPro Hose End

-6 Crimp-On (Swivel) Straight Hose End - Fits Carburetors w/ 7/8"-20 Threads on the Fuel Bowls

PART# 640611ERL

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UltraPro carburetor hose ends attach the UltraPro hose directly to most Holley carburetors w/ 7/8"-20 threads on the fuel bowl. These -6 AN crimp-on style port hose ends eliminate the bowl adapters & traditional hose end for simpler plumbing and extra clearance. Choose from hose ends with Straight, 30°, 45°, 60°, or 90° bent tube style construction for increased fuel flow. Aluminum w/ black anodized finish. UltraPro AN hose is ideal for use with all types of fuels.


  • Crimp-on hose end that attaches directly to most Holley® carburetors – w/ 7/8”-20 threads on the fuel bowl
  • Eliminates the need for special carburetor fuel lines, float bowl adapters & standard hose ends
  • Compact design provides extra clearance & simplifies plumbing to carburetor
  • Crimp style assembly – requires crimping machine & UltraPro -6 AN hose to Hose End
  • Choose from straight, 30°, 45°, 60°, or 90° angle on the hose ends
  • Bent tube style hose ends for increased fuel flow
  • Lightweight aluminum w/ black anodized finish
  • Ideal for use on 2-Barrel, 4 barrel & multi carburetor setups
  • UltraPro hose is ideal for use w/ all fuels – no issues w/ fuel permeation


Assembly MethodCrimp On
Compatible HoseUltraPro
Emission Code5
FinishAnodized Black
Hose End FamilyUltraPro - Crimp On
Hose End Series68
Hose End Size6 AN
Product TypeCarburetor Hose End
Part Number640611ERL

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This part is legal for sale or use on Emissions Controlled Vehicles, Uncontrolled (Non-Emissions Controlled) Vehicles, and Racing Use Only Vehicles because it does not affect vehicle emissions and is not covered by emissions regulations.

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      Some parts are not legal for use in California or other states with similar regulations.

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