Jetuplusllc 6AN Adapter Fitting Set for GM TBI & Vortec Fuel Senders — M16/M14 metric to -6AN, black anodized

A compact anodized aluminum adapter set that converts GM TBI and many Vortec fuel sender ports to -6AN lines for feed and return connections.

When swapping engines or upgrading fuel plumbing, matching sender unit threads to modern AN hose fittings is a common hurdle. This Jetuplusllc adapter set provides two metric-to-AN adapters—one for the feed and one for the return—so you can attach braided -6AN hoses without cutting or welding. The black anodized finish resists corrosion while the machined aluminum body keeps weight low and looks finished under the hood.

Which sender ports does this adapter set match?

The set adapts common GM throttle-body injection (TBI) and many Vortec-style sending units to AN-style fuel lines. It uses metric female threads that align with factory sender outlets and converts them to -6AN male fittings so standard AN hoses and swivel ends can be used.

• Feed side: M16 x 1.5 metric to -6AN
• Return side: M14 x 1.5 metric to -6AN
• Fits many GM TBI housings and Vortec senders with the same thread patterns
• Ideal for retaining original sender hardware while upgrading hoses

How do I install these adapters during an LS swap?

Installation is straightforward: remove the factory fitting or seal, thread the correct adapter into the sender port by hand, then tighten to secure. Use a new metric O-ring or sealing crush washer where appropriate and avoid over-torquing to protect the sender housing.

• Hand-start the adapter into the port to avoid cross-threading
• Use the correct-sized O-ring or sealing washer for leak-free sealing
• Torque lightly—these are aluminum fittings onto factory housings
• Connect -6AN hose ends or swivel fittings to the adapter’s AN male threads

What materials and finishes are used, and why it matters?

These adapters are CNC-machined from aluminum and finished with a durable black anodize. Aluminum keeps components lightweight and resists corrosion when anodized, while the precise machining ensures proper thread engagement and reliable sealing with metric O-rings.

• Material: machined aluminum for strength and lightness
• Finish: black anodized to resist oxidation and provide a finished look
• Threading: metric thread profiles matched to common factory ports
• Part number: 47-0001BL for easy identification

Who is this for? This adapter set is aimed at mechanics, home builders, and tuners performing engine swaps or fuel system upgrades on GM vehicles—especially LS-swapped projects that need modern AN fuel lines tied into older TBI or Vortec-style sending units. It suits anyone who wants a clean, serviceable junction between factory sender ports and -6AN braided hoses without modifying the sender housing.