360-04 -4 male flare union

Speedflow 360-04 | -4 AN Male Flare Union

The Speedflow 360-04 is a precision-machined -4 AN male flare union, designed to join two -4 AN male hose ends or fittings together in a straight inline connection. Offering greater flow capacity than the -3 AN 360-03 variant, the 360-04 is the preferred union for -4 AN brake, fuel, clutch, and hydraulic line systems where a secure, leak-free inline join is required.

Product Specifications

• Part Number: 360-04
• Connection: -4 AN male flare both ends
• Type: Straight union
• Series: Speedflow 360 — AN Male Flare Unions
• Compatible With: Standard -4 AN male hose ends and fittings
• Barcode: 9342122002922

Applications

The 360-04 is a versatile union fitting suited to a wide range of performance and motorsport plumbing applications, including:

• Joining two -4 AN braided brake or fuel line sections inline
• Extending existing -4 AN brake, clutch, or hydraulic line runs
• Repairing or reconfiguring -4 AN line assemblies
• Creating a serviceable break point in a long -4 AN line run for easier maintenance access
• Any application requiring a straight -4 AN male-to-male inline union

360-04 vs 360-03 — Choosing the Right Size

The Speedflow 360 series male flare unions are available in multiple AN sizes. The -4 AN (360-04) provides a larger internal bore than the -3 AN (360-03), making it the better choice for fuel lines, larger brake systems, and any application where increased fluid flow capacity is required. If your system uses -3 AN lines, see our 360-03 listing.

When to Use a Flare Union

A flare union is used when two AN hose ends need to be connected directly to each other — for example, when joining two separate braided line sections, extending a line run that falls short, or creating a serviceable break point in a long line run for easier maintenance access. The 360-04’s compact straight profile keeps the assembly tight and low-profile, ideal for confined engine bay and chassis routing.

Sold individually. Compatible with standard -4 AN male hose ends and fittings.