The seal ring with code 06.56190-0739-1.0 is a precision sealing element used throughout the MAN L21/31 engine to protect critical systems from fluid leakage and pressure loss. Designed to withstand aggressive temperatures, pressure fluctuations, and chemical exposure, this ring provides long-term elastic sealing performance in lubricating oil, fuel, and cooling circuits. Its reliability is essential for preserving system cleanliness, reducing wear, and ensuring continuous, trouble-free engine operation in demanding marine and industrial environments.

The gasket, code 06.56936-2355.0, serves as a vital sealing interface in the MAN L21/31 engine, preventing leakage of oil, coolant, and combustion gases between joined surfaces. Engineered from heat- and pressure-resistant materials, this gasket ensures tight, stable sealing under continuous high-temperature operation and dynamic load conditions. By maintaining system integrity and preventing contamination between engine circuits, it plays a direct role in operational efficiency, environmental compliance, and reduced maintenance requirements.

The tie rod with code 11.01295-0276-1.C is a critical structural fastener in the MAN L21/31 engine, designed to clamp the cylinder block, crankcase, and cylinder head into a rigid and precisely aligned assembly. Manufactured from high-tensile alloy steel, this component maintains uniform clamping force across the engine structure, even under extreme combustion pressures and thermal expansion. Its strength and dimensional accuracy are essential for preserving engine geometry, minimizing vibration, and preventing leakage, making it a cornerstone of long-term engine reliability in marine propulsion and power generation applications.

The sealing ring H 21423 is a critical sealing component used in various fluid and pressure interfaces of the Sulzer ASL25 engine. Designed to provide a tight, leak-free barrier under varying pressure, temperature, and vibration conditions, this sealing ring protects internal engine components from contamination and prevents loss of working fluids. Manufactured from high-quality, application-optimized material, H 21423 ensures long service life, stable sealing performance, and contributes directly to the operational safety and efficiency of the engine.

The bearing cover screw H 11153 is a high-strength fastening element designed to secure the bearing cover within the Sulzer ASL25 engine’s rotating assembly. Engineered to maintain precise clamping force under continuous vibration, thermal expansion, and dynamic loading, this screw ensures correct bearing alignment and structural integrity of the bearing housing. Its controlled material properties and precision threading provide consistent preload and resistance to loosening, directly supporting reliable bearing performance and long-term engine durability.

The conical clamping ring H 27078 is a precision-engineered securing component used in the Sulzer ASL25 engine to provide strong, vibration-resistant axial locking of critical assemblies. Its conical geometry generates uniform radial pressure during tightening, ensuring stable positioning and reliable retention of associated components under high mechanical loads and thermal cycling. Manufactured from high-strength material with accurate surface finish, this clamping ring minimizes micro-movement, reduces wear on mating parts, and contributes significantly to the long-term mechanical stability and operational reliability of the engine.

The hexagon bolt, code 06.01014-1317-1.D, is a high-strength fastening element widely used throughout the MAN L21/31 engine assembly. Designed for secure clamping under heavy mechanical loads and vibration, this bolt ensures structural integrity of critical engine components. Manufactured from high-grade steel and engineered to precise specifications, it provides consistent torque retention and long-term reliability, making it indispensable for safe and stable engine operation in both marine and industrial applications.

The axial bearing disc, code 11.10121-0122.0, plays a critical role in managing axial forces acting on the crankshaft in the MAN L21/31 engine. By absorbing and distributing thrust loads generated during engine operation, it prevents excessive axial movement of the shaft and protects adjacent bearing surfaces from premature wear. Its robust construction and precise tolerances are essential for maintaining stable crankshaft positioning, reducing vibration, and ensuring reliable engine performance under variable load conditions.

The bearing disc, code 11.10121-0129.A, is a precision-machined component in the MAN L21/31 engine that supports controlled load distribution within the bearing assembly. It helps stabilize rotating components by maintaining correct spacing and contact surfaces, thereby minimizing friction and wear under high operational loads. Designed to withstand continuous mechanical stress, this bearing disc contributes to smooth engine operation, enhanced durability, and long-term reliability in demanding marine and power generation environments.

Kompletni ventil goriva H 27200 precizno je izrađena ubrizgavačka komponenta zadužena za doziranje i raspršivanje goriva u komoru za izgaranje motora Sulzer ASL25. Projektiran za rad pri visokim tlakovima i preciznu kontrolu protoka, ovaj ventil osigurava optimalnu raspodjelu goriva, učinkovito izgaranje i smanjene emisije. Izrađen od visokokvalitetnih materijala uz uske tolerancije, H 27200 zadržava stabilne performanse ubrizgavanja pri ekstremnim toplinskim i mehaničkim opterećenjima, čineći ga ključnim za stabilnu snagu motora, dobru iskoristivost goriva i dug vijek trajanja u zahtjevnim brodskim i industrijskim uvjetima.