350-04 -4 Male to 3/8"-24 Male

Speedflow SF350-04 | -4 AN Male to 3/8"-24 Male Adapter

The Speedflow SF350-04 is a precision-machined -4 AN male to 3/8"-24 male straight adapter, designed to connect -4 AN fittings directly to components with a 3/8"-24 male port. A versatile adapter for performance brake, fuel, and hydraulic line builds, the SF350-04 provides a clean, leak-free male-to-male connection between these two common thread standards.

Product Specifications

• Part Number: SF350-04
• AN End: -4 AN male
• Adapter End: 3/8"-24 male
• Series: Speedflow 350 — AN Male to Male Adapters
• Compatible With: Standard -4 AN fittings and 3/8"-24 female ports
• Barcode: 9342122002755

Applications

The SF350-04 is a versatile adapter suited to a wide range of performance and custom hydraulic builds, including:

• Brake line connections between -4 AN systems and 3/8"-24 ported components
• Fuel system line connections requiring a -4 AN to 3/8"-24 male interface
• Oil and hydraulic line adaptations in custom engine and chassis builds
• Hot rod, muscle car, and race car plumbing where mixed thread standards are encountered
• Any application requiring a direct -4 AN male to 3/8"-24 male thread conversion

350 Series — Male to Male Adapters

The Speedflow 350 series provides straight male-to-male thread adapters for connecting AN fittings to components with standard imperial thread ports. These compact, single-piece adapters eliminate the need for additional fittings or unions, keeping your plumbing clean and minimising potential leak points. The 3/8"-24 thread is widely used across OEM and aftermarket brake, fuel, and hydraulic components on American and Australian performance vehicles.

Sold individually. Compatible with standard -4 AN fittings and components with 3/8"-24 female ports.