Pressure gauge pipes, code 335216, are essential components responsible for transmitting pressure signals from critical points within the MAN L21/31 engine systems to monitoring instruments. Designed to provide accurate and stable readings, they enable continuous supervision of pressure conditions in lubrication, fuel, and air systems, allowing operators to quickly detect deviations and respond accordingly. Precision-manufactured from corrosion-resistant materials, these pipes are capable of withstanding pressure variations, vibration, and demanding operating environments. By ensuring reliable signal transmission and protecting measurement integrity, pressure gauge pipes support effective diagnostics, preventive maintenance, and the overall operational reliability of the engine.