310-04 -4 Male to 3/8-M10 Banjo

Speedflow 310-04 | -4 AN Male to 3/8" M10 Banjo Fitting

The Speedflow 310-04 is a precision-machined -4 AN male to 3/8" M10 banjo fitting, designed to connect a -4 AN male port directly to an M10 banjo bolt in high-performance brake and hydraulic line assemblies. Part of the Speedflow 310 series, this fitting provides a compact, leak-free interface between -4 AN hydraulic lines and M10 banjo-ported components — a step up in flow capacity from the -3 AN 310-03 variant.

Product Specifications

• Part Number: 310-04 (SF310-04)
• Male End: -4 AN
• Banjo Size: 3/8" (M10)
• Series: Speedflow 310 — Male to Banjo Fittings
• Compatible With: M10 banjo bolts
• Barcode: 9342122002526

Applications

The 310-04 is suited to a wide range of performance and motorsport hydraulic applications, including:

• Brake caliper and master cylinder -4 AN to M10 banjo connections
• Clutch slave cylinder hydraulic line assemblies
• Motorsport, circuit racing, and track-day brake system fabrication
• Custom performance brake and clutch line builds requiring -4 AN flow capacity
• Any application requiring a direct -4 AN male to M10 banjo transition

310-04 vs 310-03 — Choosing the Right Size

The 310 series is available in both -3 AN (SF310-03) and -4 AN (310-04) configurations. The -4 AN variant offers a larger internal bore for increased fluid flow, making it the preferred choice for applications where brake fluid volume and pedal response are critical — such as larger caliper setups or master cylinder configurations with higher fluid displacement. If your system uses -3 AN lines, see our SF310-03 listing.

Sold individually. Compatible with M10 banjo bolts. Copper sealing washers recommended — sold separately. Verify port thread and banjo bore compatibility before ordering.