Designed for brake system diagnostics, this 26-piece master cylinder plug kit isolates the master cylinder to verify whether internal seals are leaking or functional. The kit contains machined aluminum plugs in sizes ranging from 3/8-24 to M10x1.0, providing the necessary fittings for most domestic and import vehicles. These components allow a technician to bypass other brake components and perform a direct test of the cylinder's internal condition.

Designed for brake system diagnostics, this 26-piece master cylinder plug kit isolates the master cylinder to verify whether internal seals are leaking or functional. The kit contains machined aluminum plugs in sizes ranging from 3/8-24 to M10x1.0, providing the necessary fittings for most domestic and import vehicles. These components allow a technician to bypass other brake components and perform a direct test of the cylinder's internal condition.