Designed for Mercedes diesel engines, this adapter replaces glow plugs to facilitate cylinder compression testing. It serves as a substitute for 12 mm and 18 mm components, specifically fitting M12-1.25 and M18-1.50 thread sizes. This connection allows a test gauge to measure pressure within the combustion chamber during diagnostic procedures.

Designed for Mercedes diesel engines, this adapter replaces glow plugs to facilitate cylinder compression testing. It serves as a substitute for 12 mm and 18 mm components, specifically fitting M12-1.25 and M18-1.50 thread sizes. This connection allows a test gauge to measure pressure within the combustion chamber during diagnostic procedures.