Banjo Fittings and Bolt Sets - Metric

Most imported engines, turbos and brake systems use metric banjo ports, and this collection stocks the Vibrant Performance metric banjo bolts, banjo fittings and complete sets you need to connect AN plumbing to them. Common sizes such as M10, M12, M14 and M16 are covered, with male AN outlets and single and dual configurations.

Built for metric ports

Japanese and European engines put metric banjo ports on turbo oil feeds, fuel rails, fuel filters, power steering systems and brake calipers. A metric banjo with an AN outlet lets you upgrade to braided or PTFE line without changing the factory component.

How the joint works

The bolt passes through the banjo ring and threads into the port, with a cross-drilled passage carrying fluid into the ring and out to the hose. Crush washers above and below the ring seal the joint as the bolt is tightened, so always install new washers.

Single and dual sets

Single banjo sets feed one line. Dual sets use a longer bolt and two rings so one port can feed two lines, which is useful for adding a gauge or sensor to a turbo oil feed or splitting a fuel supply.

Getting the size right

Metric banjo bolts are sized by thread diameter and pitch, for example M12 x 1.5 or M10 x 1.25. Two bolts can share a diameter and have different pitches, so confirm both before you order. Then pick the AN size that matches your hose.

Common questions

Can I use an imperial banjo on a metric port? No. The threads will not match and forcing it will damage the port. Use the correct metric bolt.

What torque should a metric banjo bolt get? Follow the component maker's spec. As a rule, small aluminum banjos need far less torque than steel brake banjos, so do not guess high.

Why does my banjo weep after install? The usual causes are reused washers, a scratched port face or an uneven torque. Clean the face, fit new washers and retorque.