The Texas Speed 6AN to 5/16" Male Quick Connect Adapter Fitting converts a 5/16" factory-style quick connect fuel line to a -6AN male thread so an AN hose can be run from the stock line without an extra joint. It is machined from 6061 aluminum and black anodized for corrosion resistance.
Texas Speed adapter fittings are made to cut down on the number of connections in a fuel or oil system, which saves space in tight areas and reduces cost. They are compatible with most fuels, solvents and oils.
Specifications
- Fitting type: Adapter, 5/16" male quick connect to -6AN male
- Material: 6061 aluminum
- Finish: Black anodized
- Compatibility: Most fuels, solvents and oils
- Part number: TSP-6058 (Texas Speed 25-6058)
FAQ
What does the Texas Speed 6AN to 5/16" quick connect fitting do?
It adapts a 5/16" quick connect fuel line, such as the factory feed line on many GM LS and LT vehicles, to a -6AN male thread so an AN hose end can be attached directly.
Is this fitting safe for E85 and gasoline?
Yes. Texas Speed states its adapter fittings are compatible with most fuels, solvents and oils, and the anodized 6061 aluminum resists corrosion.
What is the fitting made of?
It is machined from 6061 aluminum and finished in black anodizing.
Is this a universal part?
Yes. It is not vehicle specific. It fits any 5/16" quick connect line and any -6AN female hose end or adapter.

