Fuel Line Tube Nuts

Explore our selection of fuel line tube nuts engineered for GM-style fuel systems. Available in 5/16" and 3/8" tube sizes with 14mm x 1.5 and 16mm x 1.5 thread pitches, these fittings provide secure, high-pressure connections for fuel delivery lines. Ideal for OEM replacement or custom fuel line fabrication.

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  • Olive Fuel Line Tube Nut - 5/16" x 14 MM x 1.5 - GM - 10 Pack

    Olive Fuel Line Tube Nut - 5/16" x 14 MM x 1.5 - GM - 10 Pack

    For 5/16” tube 14mm x 1.50 thread For use with GM Saginaw o-ring flare Suitable for all vehicles...

    $11.49 USD
    $11.49 USD
  • Olive Fuel Line Tube Nut - 3/8" x 16 MM x 1.5 - GM - 10 Pack

    Olive Fuel Line Tube Nut - 3/8" x 16 MM x 1.5 - GM - 10 Pack

    For 3/8” tube 16mm x 1.50 thread For use with GM Saginaw 0-ring flare Suitable for all vehicles...

    $11.49 USD
    $11.49 USD