Diesel Engines

Adriadiesel d.d. presently produces diesel engines and other power plant equipment, as well as spare parts for ADRIA 40 and MAN Diesel SE fourstroke diesel engines.

Spare Parts

Adriadiesel d.d. produces spare parts for diesel engines in our production line by MAN Diesel SE licence. Adriadiesel d.d. produces spare and substitute parts for engines produced by ADRIA 40 licence since 1955.

Services and Overhauls

Adriadiesel d.d. provides maintenance and servicing of diesel engines, compressors, pumps and other power plant equipment. General overhauls, repairs and servicing can be carried out on spot or in our factory, where engines are tested on our test bed.

Adriadiesel d.d. - ex. Jugoturbina

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Adria 40 & MAN Diesel Engine Service & Repairs Worldwide: 60 years of experience

To whom it may concern:

We would like to offer the following products:

  • Medium-speed four-stroke MAN engines (500 kW – 3000 kW)
  • Large / ADRIA-40 engine (6.3 MW)
  • CPP (containerised power plants / diesel-powered generators) (500 kW)

and services:

  • spare parts for Adria 40 and MAN diesel engines
  • troubleshooting, maintenance, service and repair of Adria 40, MAN and other diesel engines and other power plants
  • diesel engine overhaul
  • machining and heat treatment services
  • full range of ship-repair services, alongside or in floating docks, in co-operation with the Service Centre Trogir of Shipyard Brodotrogir

A few words about us:

In 1949 as a part of the large industrial complex “Jugoturbina”, the company “Tvornica diesel motora” (Diesel Engine Factory) was established. We have been operating under the name of “Adriadiesel” since 1991.

Our factory has been producing engines under the “Sulzer (Switzerland) license” from 1955 until 1998, and has been producing engines under the “MAN (Germany) license” from 1998. Since the establishment of the company, during the 60 years of its existence, more than 1580 engines with more than 2,000 MW of power have been produced and delivered to more than 50 countries worldwide.

Adriadiesel brochures, company profile - you can view the materials at this link. You can view the specifications of various engines at the following link.

We would like to become your prime choice for providing the mentioned services and products because of our quality, experience and price-competitiveness.

Please send us your enquiry or request for quotation and we will send you our best prices.

Feel free to contact us for any additional information.

Best regards,

Nenad Končar, PhD
Managing Director
Adriadiesel d.d.
This email address is being protected from spambots. You need JavaScript enabled to view it.

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Innovation

Video content: construction of the ADRIA-40 engine by Adriadiesel d.d.

Read 90582 times Last modified on Monday, 25 March 2024 18:29

Media

Video content: construction of the ADRIA-40 engine by Adriadiesel d.d.
More in this category: About »
  • Raw Water Pump, Complete (Code Number K 73100)

    The complete raw water pump with code K 73100 plays a central role in the Sulzer ZV40/48 engine's cooling system. It is responsible for drawing seawater or external cooling water into the engine to absorb heat from critical components such as cylinder heads and exhaust systems. Engineered for robust performance and corrosion resistance, this pump ensures stable thermal regulation under high-load maritime conditions. Its reliable function is essential for preventing overheating and sustaining engine longevity.

    Written on Friday, 11 July 2025 12:12 in Blog EN Read 21 times
  • Packing for K 73033 (Code Number K 73038)

    The packing element identified as K 73038 is specifically designed to provide a tight seal for component K 73033 in the Sulzer ZV40/48 engine. This critical sealing component helps prevent leakage of fluids or gases, ensuring system pressure integrity and protecting adjacent mechanical parts from wear or contamination. Made from high-quality, temperature-resistant materials, it supports long-term operation in demanding engine environments, minimizing maintenance frequency and ensuring continuous efficiency.

    Written on Friday, 11 July 2025 12:12 in Blog EN Read 22 times
  • Pump Impeller for Fuel Transfer Pump (Code Number K 74125)

    The pump impeller with code number K 74125 is a vital rotating component in the fuel transfer pump of the Sulzer ZV40/48 diesel engine. Designed to generate the hydraulic energy needed for transferring fuel from the storage tank to the injection system, this impeller ensures smooth and consistent fuel flow under variable load conditions. Precision-balanced and built from wear-resistant materials, it maintains optimal performance over long operational periods, contributing to the overall reliability and efficiency of the fuel system.

    Written on Friday, 11 July 2025 12:05 in Blog EN Read 24 times
  • MAN L21/31; Fuel Injection Pumps (Code P51401-29)

    Fuel injection pumps with code P51401-29 are indispensable components in the MAN L21/31 engine, responsible for delivering precise amounts of fuel under high pressure into the combustion chamber. These pumps ensure optimal fuel atomization and timing, which are critical for efficient combustion, engine power, and fuel economy. Reliable operation and regular maintenance of these pumps are key to sustaining engine performance and meeting emission standards.

    Written on Friday, 11 July 2025 12:00 in Blog EN Read 22 times
  • MAN L21/31; Vibration Damper Tuning Wheel (Code P51004-12)

    The vibration damper tuning wheel, identified by code P51004-12, is an essential part of the MAN L21/31 engine’s system to minimize torsional vibrations. By absorbing and tuning the energy from engine vibrations, this component protects the crankshaft and related parts from fatigue and damage, enhancing the engine’s durability and smoothness during operation. Its role is crucial for maintaining engine balance and reducing wear over time.

    Written on Friday, 11 July 2025 12:00 in Blog EN Read 24 times
  • MAN L21/31; Crankshaft (Code P51001-14)

    The crankshaft with code P51001-14 in the MAN L21/31 engine is a critical component that converts the pistons' reciprocating motion into rotational power to drive the engine. Manufactured with precision and high-strength materials, this crankshaft withstands enormous mechanical stresses and torque loads, ensuring smooth and reliable engine performance. Its durability and exact engineering are vital for maintaining the engine’s long-term operational integrity and efficiency.

    Written on Friday, 11 July 2025 11:59 in Blog EN Read 16 times
  • MAN L21/31: Valves (Intake and Exhaust) (Guessed Code: H27050)

    The intake and exhaust valves in the MAN L21/31 engine regulate the flow of air and exhaust gases into and out of the combustion chamber. Designed to endure extreme heat and pressure, these valves (code H27050) ensure efficient combustion cycles and optimal engine breathing. Proper maintenance and timely replacement of valves are crucial to sustaining engine power and fuel efficiency.

    Written on Wednesday, 09 July 2025 09:21 in Blog EN Read 42 times
  • MAN L21/31: Timing Gear or Chain (Guessed Code: H33041)

    The timing gear or chain in the MAN L21/31 engine synchronizes the rotation of the crankshaft and camshaft, ensuring precise valve timing for optimal combustion and engine performance. Durable and precisely engineered, the timing mechanism (code H33041) plays a critical role in maintaining engine efficiency and preventing mechanical failure due to mistimed valve operation.

    Written on Wednesday, 09 July 2025 09:21 in Blog EN Read 48 times
  • MAN L21/31: Oil Pump (Guessed Code: H27154)

    The oil pump in the MAN L21/31 engine plays a vital role in circulating lubricating oil throughout the engine, ensuring all moving parts receive adequate lubrication to minimize wear and prevent overheating. Built to withstand high pressure and continuous operation, the oil pump (code H27154) is essential for maintaining engine health, reducing friction, and prolonging the engine’s lifespan.

    Written on Wednesday, 09 July 2025 09:20 in Blog EN Read 48 times
  • Pump Impeller with Drive Shaft (Code Number K 74123)

    The pump impeller with drive shaft, bearing code number K 74123, forms the dynamic heart of the Sulzer ZV40/48's fuel transfer pump. The impeller is tasked with propelling the fuel, while the drive shaft transmits power from the motor to the rotating assembly. Together, they generate the pressure and flow necessary for efficient fuel distribution. Constructed from robust, wear-resistant materials, these components are engineered for high efficiency, minimal vibration, and extended service life, playing a vital role in the consistent performance of the fuel system.

    Written on Wednesday, 09 July 2025 09:07 in Blog EN Read 52 times
  • Fuel Transfer Pump, Complete (Code Number K 74100)

    The complete fuel transfer pump, marked with code K 74100, is a central component in the Sulzer ZV40/48 engine's fuel delivery system. It is responsible for ensuring the continuous, regulated flow of fuel from storage tanks to the injection system under precise pressure. Engineered for durability and performance, this pump supports reliable engine operation even under demanding marine and industrial conditions. Its integrated design includes essential components such as impellers, shafts, and seals, all optimized for long-term service and minimal maintenance.

    Written on Wednesday, 09 July 2025 09:07 in Blog EN Read 44 times
  • Packing Ring for Fuel Transfer Pump (Code Number K 74130)

    The packing ring identified by code number K 74130 is a critical sealing element in the Sulzer ZV40/48 diesel engine's fuel transfer pump. Designed to prevent fuel leakage under pressure, it ensures the secure containment of fuel within the pump assembly. Crafted from durable, fuel-resistant materials, the packing ring withstands high operational temperatures and mechanical stress. This small but essential component plays a vital role in maintaining fuel system efficiency and protecting surrounding engine parts from contamination and wear due to leaks.

    Written on Wednesday, 09 July 2025 09:02 in Blog EN Read 36 times
  • MAN L21/31: Fuel Filters (Code Estimate: H87511)

    Fuel filters in the MAN L21/31 engine are crucial for maintaining clean fuel delivery by removing contaminants such as particles and water. These filters protect the fuel injection system from clogging and wear, helping optimize combustion efficiency and extend engine life. Regular inspection and timely replacement of fuel filters (code H87511) are essential to prevent costly repairs and ensure steady engine performance.

    Written on Monday, 07 July 2025 11:26 in Blog EN Read 85 times
  • MAN L21/31: Crankshaft (Code Estimate: E265280000)

    The crankshaft is the primary component in the MAN L21/31 engine that converts the pistons’ reciprocating motion into rotational motion to drive the engine. Built from high-strength forged steel, it must withstand significant mechanical stresses and torque while maintaining precise alignment. Its robust design and durability (code E265280000) are critical to the engine’s overall reliability and long-term performance.

    Written on Monday, 07 July 2025 11:26 in Blog EN Read 87 times
  • MAN L21/31: Flywheel (Code Estimate: H33030)

    The flywheel in the MAN L21/31 engine plays a vital role in stabilizing engine rotation by storing rotational energy. This component smooths out power delivery by balancing the intermittent pulses generated during combustion, reducing vibration and ensuring efficient operation. Made from durable materials, the flywheel (code H33030) is essential for connecting the engine to the transmission system and supporting consistent, reliable performance.

    Written on Monday, 07 July 2025 11:22 in Blog EN Read 82 times
  • Liner for Raw Water Pump (Code Number K 73122)

    The liner bearing code K 73122 is an inner protective sleeve designed for use within the raw water pump of the Sulzer ZV40/48 diesel engine. It serves as a wear-resistant interface between the pump housing and the rotating shaft, shielding structural components from abrasion and corrosion. Manufactured from durable, corrosion-resistant materials, the liner extends the life of the pump and helps maintain performance by ensuring smooth water flow and reduced mechanical wear. It's a key part of preserving cooling system efficiency in demanding marine environments.

    Written on Monday, 07 July 2025 11:17 in Blog EN Read 57 times
  • Nut for Shaft K 73123 (Code Number K 73125)

    The nut marked with code number K 73125 is engineered to secure shaft K 73123 within the raw water pump assembly of the Sulzer ZV40/48 engine. Its function is fundamental—locking key rotating components in place to prevent mechanical failure under dynamic load. Designed to resist loosening due to vibration and high-speed operation, this precision nut plays a pivotal role in the long-term reliability and safety of the pump mechanism. Proper torque application and regular checks are essential to maintaining its securing function.

    Written on Monday, 07 July 2025 11:16 in Blog EN Read 57 times
  • O-ring for Cover K 73118 (Code Number K 73136)

    The O-ring designated as code number K 73136 plays a crucial sealing role in the Sulzer ZV40/48 diesel engine, specifically as a gasket for cover K 73118. This seemingly simple but essential rubber component is designed to withstand pressure, temperature fluctuations, and chemical exposure typical of marine and industrial environments. It ensures a tight seal, preventing leaks and maintaining system integrity. A high-quality O-ring like this is vital for protecting internal engine components and ensuring efficient operation over long service intervals.

    Written on Monday, 07 July 2025 11:16 in Blog EN Read 48 times
  • MAN L21/31: Fuel Filters

    Fuel filters in the MAN L21/31 engine protect the fuel injection system from contaminants and impurities. By filtering particles and water from the fuel, they maintain clean fuel flow, prevent injector clogging, and ensure optimal combustion. Regular replacement of fuel filters is critical to maintaining engine performance and avoiding costly repairs.

    Written on Friday, 04 July 2025 05:28 in Blog EN Read 86 times
  • MAN L21/31: Cylinder Head

    The cylinder head in the MAN L21/31 engine seals the top of the cylinders and houses key components such as valves, fuel injectors, and the combustion chamber. It is vital for engine efficiency and durability, ensuring proper compression and sealing under high combustion pressures. Precision manufacturing and robust materials are essential for its performance and lifespan.

    Written on Friday, 04 July 2025 05:28 in Blog EN Read 88 times
  • MAN L21/31: Turbocharger

    The turbocharger in the MAN L21/31 engine plays a crucial role in boosting engine performance by forcing additional air into the combustion chamber. This increases power output and fuel efficiency while reducing harmful emissions. Designed to operate under extreme heat and high speeds, the turbocharger must be precisely manufactured and regularly maintained to ensure long-lasting and reliable engine operation.

    Written on Friday, 04 July 2025 05:24 in Blog EN Read 84 times
  • Joint Ring for Screw Plug K 81258 (Code Number K 81259)

    The joint ring bearing code number K 81259 is a sealing element designed for use with the screw plug K 81258 in the Sulzer ZV40/48 engine. Its primary function is to provide a leak-proof seal between the plug and the housing, ensuring that fluids such as oil or coolant remain contained under pressure. Manufactured from resilient and heat-resistant material, the joint ring is essential for maintaining the engine's operational integrity and avoiding performance issues caused by leaks or pressure loss.

    Written on Friday, 04 July 2025 05:18 in Blog EN Read 59 times
  • Support for Exhaust Piping (Code Number K 81170)

    The support identified by code number K 81170 is an essential structural component used in the installation and stabilization of exhaust piping in the ZV40/48 engine. It ensures that the exhaust system is securely mounted and properly aligned to withstand thermal expansion, vibration, and operational stress. By providing a stable base, the erection support prevents displacement or misalignment of the exhaust components, contributing to a more durable and noise-reduced exhaust configuration.

    Written on Friday, 04 July 2025 05:17 in Blog EN Read 62 times
  • Guide Bolt for Guide Element (Code Number K 81162)

    The guide bolt marked with code number K 81162 is a precision-machined component that plays a vital role in securing and aligning the guide element within the Sulzer ZV40/48 diesel engine. Its purpose is to ensure that moving parts stay correctly positioned during engine operation, which is crucial for smooth and efficient motion transmission. Designed to endure high mechanical loads, this bolt minimizes wear and helps maintain the geometry of critical engine assemblies, thereby enhancing overall performance and reliability.

    Written on Friday, 04 July 2025 05:15 in Blog EN Read 57 times
  • MAN L21/31: Connecting Rods (Estimated Code: E265280020)

    Connecting rods, estimated with code E265280020 for the MAN L21/31, are vital mechanical links that transfer the reciprocating motion of pistons to the rotational motion of the crankshaft. Manufactured from high-strength forged steel alloys, these rods must withstand tremendous dynamic loads and stresses. Their precision design and durability are crucial for reliable engine operation and longevity, making them one of the core components in the L21/31’s powertrain.

    Written on Thursday, 03 July 2025 11:09 in Blog EN Read 69 times
  • MAN L21/31: Water Pump (Estimated Code: H27075)

    The water pump in the MAN L21/31 engine, likely identified by code H27075, is a critical component of the engine’s cooling system. It circulates coolant throughout the engine block and cylinder head to dissipate heat generated during combustion. Proper functioning of the water pump is essential to prevent overheating, maintain engine efficiency, and ensure safe operation, especially under demanding marine or industrial conditions.

    Written on Thursday, 03 July 2025 11:08 in Blog EN Read 73 times
  • MAN L21/31: Oil Pan (Sump) (Estimated Code: H21420)

    The oil pan, or sump, in the MAN L21/31 engine (estimated code H21420) serves as the reservoir for engine lubricating oil. It collects and stores the oil as it circulates through the engine, ensuring vital components remain properly lubricated to reduce friction and wear. Made from durable materials to withstand thermal stresses and mechanical impacts, the oil pan is essential for maintaining engine longevity and optimal performance by facilitating efficient oil circulation and cooling.

    Written on Thursday, 03 July 2025 11:08 in Blog EN Read 68 times
  • Sealing Ring (Code Number N66068)

    The sealing ring, designated with code number N66068, is a small but essential part that ensures tight sealing between mechanical interfaces in the ASL25 engine. It prevents fluid leaks and contamination, helping to maintain system pressure and protect internal components. Made from resilient, temperature-resistant materials, this sealing ring can withstand the demanding conditions of diesel engine operation. Proper installation and timely replacement of the sealing ring are key to minimizing maintenance issues and maximizing engine lifespan.

    Written on Thursday, 03 July 2025 10:49 in Blog EN Read 66 times
  • Screw (Code Number H 74129)

    The screw marked with code number H 74129 may appear as a simple fastening element, but it is vital to the structural integrity and maintenance of the ASL25 diesel engine. Designed for high-stress environments, this screw secures engine components with precision and reliability. Its material strength and thread quality prevent loosening under vibration and heat, ensuring consistent alignment and sealing of parts. Regular inspection and proper torque application help maintain the overall durability of the engine system.

    Written on Thursday, 03 July 2025 10:49 in Blog EN Read 72 times
  • Thermometer (Code Number H 81214)

    The thermometer identified by code H 81214 plays a crucial role in monitoring the operating temperature of key engine systems in the Adriadiesel/Jugoturbina/Zgoda/Sulzer ASL25 diesel engine. Accurate temperature readings are essential for maintaining optimal engine performance and avoiding thermal stress or overheating. This high-precision instrument provides real-time temperature feedback, allowing operators to make timely adjustments to cooling and lubrication systems. Its robust design ensures reliability under harsh engine conditions, making it a fundamental component for safe and efficient operation.

    Written on Thursday, 03 July 2025 10:47 in Blog EN Read 67 times
  • Nut for Threaded Pin K 81192 and for Support K 81260 (Code Number K 81190)

    The nut designated as K 81190 serves as a locking and fastening component for threaded pin K 81192 and support K 81260 in the ZV40/48 engine structure. Engineered for high-strength applications, it ensures that connected parts remain securely fastened under dynamic loads and vibrations. Its compatibility with both components highlights its role in maintaining structural integrity and alignment within the engine’s support system. Proper tightening and periodic inspection of this nut are essential for the reliable operation of engine-mounted assemblies.

    Written on Tuesday, 01 July 2025 11:31 in Blog EN Read 81 times
  • Support for Exhaust Piping (Code Number K 81169)

    The support bearing code K 81169 is a vital structural element in the installation and stabilization of the ZV40/48 engine’s exhaust piping. This support maintains alignment and mitigates mechanical vibrations during operation, helping to prevent fatigue and stress on piping joints. Designed to accommodate thermal expansion and heavy exhaust system loads, it plays a critical role in ensuring operational safety and reducing maintenance frequency. Its robust design reflects the engine’s demand for precision and durability in all auxiliary systems.

    Written on Tuesday, 01 July 2025 11:29 in Blog EN Read 85 times
  • Disk for Geared Pump K 72106 (Code Number K 72149)

    The disk identified with code number K 72149 is a precision-machined component essential for the smooth functioning of the geared pump K 72106 in the ZV40/48 engine. Its main role is to ensure stable rotation and optimal torque transmission within the pump assembly. Built from wear-resistant materials, this disk endures continuous mechanical stress and high temperatures, making it indispensable for maintaining consistent fluid flow and pressure. Its reliability directly affects the efficiency and durability of the engine’s lubrication or fuel system, depending on the pump's function.

    Written on Tuesday, 01 July 2025 11:29 in Blog EN Read 85 times
  • MAN L21/31: Crankshaft Bearings (Estimated Code: H33016)

    Crankshaft bearings, commonly associated with code H33016, play a vital role in supporting the crankshaft within the engine block, enabling smooth rotation under heavy loads. In the MAN L21/31, these bearings endure significant mechanical and thermal stresses. Failure or excessive wear in crankshaft bearings can lead to severe engine damage. Therefore, consistent inspection, lubrication, and prompt replacement are critical for maintaining engine health and avoiding costly repairs.

    Written on Tuesday, 01 July 2025 11:16 in Blog EN Read 130 times
  • MAN L21/31: Connecting Rods and Bearings (Estimated Codes: Connecting Rods – H33001; Bearings – H33016)

    Connecting rods in the MAN L21/31, with an estimated code of H33001, serve as the crucial link between pistons and the crankshaft, translating reciprocating motion into rotational energy. Bearings, approximately H33016, support the connecting rods and reduce friction between moving parts. Due to constant mechanical stress, these components are prone to wear and require regular monitoring and maintenance to prevent catastrophic engine failure and ensure smooth operation.

    Written on Tuesday, 01 July 2025 11:16 in Blog EN Read 130 times
  • MAN L21/31: Pistons and Piston Rings (Estimated Codes: Pistons – H27222; Piston Rings – H31110/11/12)

    The MAN L21/31 engine relies heavily on its pistons and piston rings, crucial components for maintaining engine compression and efficient combustion. Pistons, estimated at code H27222, withstand intense heat and pressure while transferring force to the crankshaft. The piston rings, likely coded around H31110 series, provide a critical seal between piston and cylinder walls to prevent gas leakage and control oil consumption. Regular inspection and timely replacement of these parts are vital for optimal engine performance and longevity.

    Written on Tuesday, 01 July 2025 11:16 in Blog EN Read 120 times
  • Spindle for Pressure Regulating Valve (Code Number K 87088)

    The spindle coded K 87088 is a key internal part of the pressure regulating valve in the Adriadiesel ZV40/48 engine. This spindle transmits motion from the actuator to adjust the flow and pressure within the valve body, directly influencing fuel or lubrication regulation. Crafted to tight tolerances, the spindle ensures accurate control under fluctuating operational demands. Its performance directly affects the valve’s responsiveness, making it crucial for maintaining engine stability, fuel efficiency, and protection against overpressure scenarios.

    Written on Friday, 27 June 2025 09:47 in Blog EN Read 103 times
  • Sleeve for Hinge K 81264 (Code Number K 81265)

    The sleeve identified by code number K 81265 serves as a bearing surface for the hinge component K 81264 in the ZV40/48 engine framework. Designed to reduce friction and ensure smooth pivotal movement, the sleeve also helps maintain proper alignment and mechanical stability in moving joints. Its durable construction, typically from wear-resistant materials, makes it ideal for repeated cycles of motion. This component enhances operational precision and contributes to the overall structural robustness of the engine’s supporting assemblies.

    Written on Friday, 27 June 2025 09:47 in Blog EN Read 94 times
  • O-Ring for Housing K 87086 (Code Number K 87094)

    The O-ring marked with code number K 87094 is a precision-sealing component designed specifically for housing K 87086 within the Adriadiesel/Jugoturbina/Zgoda/Sulzer ZV40/48 engine system. This small but vital part plays a crucial role in preventing fluid leakage and maintaining system pressure by ensuring a tight seal between mating surfaces. Made from high-performance elastomers resistant to temperature extremes and chemical exposure, the O-ring supports reliable engine function even in demanding conditions. Its integrity is essential for the longevity and safety of the pressure-related components it protects.

    Written on Friday, 27 June 2025 09:47 in Blog EN Read 96 times
  • Threaded Union for Visual Flow Control (Code Number K 84468)

    The threaded union with code number K 84468 is a precision-engineered connector used in the visual flow control system of the Sulzer ZV40/48 engine. It enables secure and leak-free joining of flow monitoring components, allowing operators to observe and assess fluid movement within the system. Designed for high-pressure environments, the union features durable threads and sealing surfaces to ensure long-lasting reliability. This small but essential part supports effective maintenance and diagnostics, making it indispensable in complex fuel, oil, or coolant monitoring setups.

    Written on Thursday, 26 June 2025 11:16 in Blog EN Read 106 times