The worm gear with code number K 32322 is a critical drive component in the horizontal worm gear assembly of the Sulzer ZV40/48 diesel engine. Designed to transmit motion and torque efficiently at a right angle, this gear ensures smooth and precise rotational movement between the worm shaft and the gear wheel. Its robust construction from high-strength, wear-resistant alloy allows it to endure heavy loads and continuous operation under harsh marine and industrial conditions. The precision-cut gear teeth contribute to reduced vibration, minimal backlash, and long-lasting performance in the engine’s auxiliary systems.
The piston rings, code P50605-02, form a critical seal between the piston and cylinder wall in the MAN L21/31 engine. Typically consisting of compression and oil control rings, they serve to contain combustion gases, transfer heat from the piston to the liner, and regulate oil consumption. Manufactured with precision and durability in mind, these rings ensure proper sealing, reduced blow-by, and optimized lubrication—key factors in prolonging engine life and maintaining consistent performance under harsh operational conditions.
The piston, code P50602-03, is a high-performance component at the heart of the MAN L21/31 engine’s combustion cycle. Made from heat-resistant alloys, it endures explosive pressures and high temperatures while moving rapidly within the cylinder liner. Its carefully engineered crown shape maximizes combustion efficiency, while its light weight and strength reduce inertia and wear. Designed for long service life, this piston plays a key role in fuel efficiency, emission control, and overall engine performance.
The connecting rod, code P50603-02, is one of the most vital components in the MAN L21/31 engine, serving as the mechanical link between the piston and the crankshaft. Engineered to withstand extreme tensile and compressive forces, this forged steel rod converts the reciprocating motion of the piston into rotational movement, delivering efficient power transmission. Its precision-machined bearing surfaces and optimal weight balance are critical to minimizing vibration and maintaining high mechanical integrity during continuous operation in marine and stationary power generation environments.
The nut with code K 11833 is specifically manufactured to secure stud bolt K 11823 in the ZV40/48 engine configuration. Designed to resist loosening from vibration and thermal stress, this high-strength fastener maintains the structural connection of critical engine parts, such as casings, manifolds, or covers. Precision-machined threading ensures uniform torque distribution and long-term stability, which is crucial for preserving engine alignment and minimizing mechanical wear. The nut’s reliability directly supports the integrity and longevity of the engine assembly under heavy-duty use.
The O-ring coded K 11126 is a compact yet vital sealing component used with ring K 11116 in the Sulzer ZV40/48 engine. It provides a flexible and leak-proof interface in assemblies exposed to high pressure or thermal cycling. Engineered from resilient elastomeric material, the O-ring maintains its shape and function over extended operational periods, resisting wear, compression, and chemical degradation. Its role is fundamental to preserving internal sealing performance, particularly in fuel, oil, or air systems where tight containment is critical.