What is a banjo bolt?

A banjo bolt is a type of fastener used in hydraulic systems, primarily on vehicles like motorcycles, cars, and trucks. It is typically made of steel and has a hollow center with holes on either end to allow fluid to flow through. The bolt is used to connect hydraulic lines to components such as calipers, master cylinders, or hydraulic hoses.

Banjo bolts are called as such because of their appearance resembling a banjo. They are commonly used in situations where space is limited or where a straight connection is not possible. The bolt is secured with a copper crush washer on each side to create a tight seal and prevent leaks.

When replacing banjo bolts, it is important to use the correct size and type for your specific application to ensure proper functionality and prevent fluid leaks. Additionally, it is recommended to replace the crush washers as well to ensure a secure and leak-free connection.