Marine lines and pipes– reliable for engines
Marine lines are essential components in engine and auxiliary systems onboard ships and offshore installations. They guide fluids such as fuel, coolant, oil or exhaust gases safely through the system and ensure consistent operation under demanding marine conditions. Whether for main propulsion, auxiliary systems or generator units – high-quality marine lines support performance, safety and compliance.
Choose from following:
PRESSURE LINE - 85400009961 suitable for MAN D engines
Pressure line with comparison number 85400009961Discover our pressure line with the comparison number 85400009961. This OEM replacement part offers long-term reliability for your engines and is ideal for applications in the marine and stationary sector.
PRESSURE LINE - 85400009960 suitable for MAN D engines
Pressure line - Comparison number 85400009960The pressure line with the comparison number 85400009960 is a top-quality product specifically designed for engines. This reliable component is suitable for MAN D engines and significantly increases the efficiency of your drive systems.OEM replacement parts for the highest standardsSecure the best quality with our OEM replacement part. In comparison to aftermarket products, OEM replacement parts offer unparalleled reliability. The pressure line with the comparison number 85400009960 ensures that your machines remain fully operational.
PRESSURE LINE - 85400009959 suitable for MAN D engines
High-Performance Pressure Line for MAN D EnginesDiscover the Pressure line with the comparison number 85400009959, an OEM replacement part that is optimally suited for MAN D engines. This Pressure line belongs to the product group "Lines and pipes" and is an important component for the reliable performance of your engines. Weighing 1.15 kg, it provides an efficient and secure connection that lowers your operating costs.OEM Replacement Parts for Your ApplicationOur Pressure line 85400009959 is offered as an OEM replacement part and provides you with the quality you need for your MAN D engines. Through thorough internal controls, we ensure that each product meets high standards. Trust our expertise and secure a replacement part suitable for your requirements.
RETURN PIPE - 85400009958 suitable for MAN D engines
Return Line – Your Solution for MAN D EnginesDiscover the return line with the comparison number 85400009958, which is optimally designed to meet your engine requirements. This product is specifically developed to enhance the performance of engines and ensure reliable function.Discover OEM Spare Parts in Original Equipment QualityOur return line is a top-quality OEM spare part, suitable for MAN D engines. We offer you the security and reliability that only high-quality spare parts can provide, at attractive prices.
PRESSURE LINE - 85400009957 suitable for MAN D engines
Pressure line suitable for MAN D engines Discover our reliable pressure line with the comparison number 85400009957. This product is suitable for MAN D engines and belongs to the product group "Lines and pipes". Trust in our OEM spare parts that meet the highest quality standards.OEM spare parts for the highest demands The pressure line with the comparison number 85400009957 is a must-have for your engines. It ensures optimal communication between the various components and assures that everything runs smoothly. As an OEM spare part, it provides the appropriate quality for your needs.
PIPELINE - 85400009956 suitable for MAN D engines
Efficient Pipeline with Comparison Number 85400009956Discover our pipeline with the comparison number 85400009956, specifically designed to provide reliable performance. This product belongs to the article group "Lines and pipes" and is suitable for MAN D engines. The exact fit ensures that your engines operate optimally.OEM Spare Parts of Proven QualityAs a second-generation family business, we provide you with high-quality OEM spare parts. The pipeline with the comparison number 85400009956 meets the high standards you can expect from an OEM spare part. Our over 25 years of experience in the industry ensures you receive the highest precision and reliability.
PRESSURE LINE - 85400009955 suitable for MAN D engines
First-Class Pressure Line with Comparison Number 85400009955Discover the pressure line with the comparison number 85400009955, which has been optimally designed for your requirements. This product belongs to the article group "Lines and pipes" and is crucial for the reliability of your engines.OEM Spare Parts Compatible with MAN D EnginesCompatible with MAN D engines, this OEM spare part offers excellent performance and durability through its precise fit. Rely on the quality that is reflected in every detail to ensure the efficiency of your machines.
PRESSURE LINE - 85400009954 suitable for MAN D engines
Robust Pressure Line for MAN D EnginesDiscover the pressure line with the reference number 85400009954, an indispensable OEM spare part specifically designed. This product is suitable for MAN D engines and belongs to the category of lines and pipes, ensuring optimal functionality.
PRESSURE LINE - 85400009928 suitable for MAN D engines
Pressure line for MAN D engines The pressure line with the comparison number 85400009928 is an essential OEM spare part that has been precisely designed for MAN D engines. This pressure line offers top quality and ensures that your engines operate optimally, whether in marine or stationary applications. With its robust construction, it meets the strict requirements placed on industrial applications.Efficiency through precise use Weighing only 0.5 kg, the pressure line is easy to handle and ideal for installation. Compatible with MAN D engines, this product ensures perfect integration into existing systems. The carefully manufactured OEM spare parts support the efficiency of your engines and minimize the risk of failures.
PRESSURE LINE - 85400009927 suitable for MAN D engines
Redefined Pressure Line for MAN D EnginesDiscover our pressure line, suitable for MAN D engines, with the comparison number 85400009927. This OEM replacement part is essential for all applications in the marine and stationary industry as well as for locomotives. Weighing only 0.4 kg, it combines lightweight design with high functionality.
PIPELINE - 85400009926 suitable for MAN D engines
Pipeline for MAN D EnginesDiscover our pipeline with the comparison number 85400009926, specifically designed to work optimally with your engines. This product is suitable for MAN D engines and plays a crucial role in the smooth operation of your diesel or gas engines. Weighing 2.5 kg, this pipeline combines robustness with efficiency.OEM Replacement Parts for Your ApplicationsAs an OEM replacement part, the pipeline offers the same quality as the manufacturer's parts and ensures the highest precision. Compared to aftermarket parts, which often use inferior materials, this OEM replacement part is a reliable choice for your applications. Trust our expertise when it comes to replacement parts suitable for MAN D engines.
PIPELINE - 85400009921 suitable for MAN D engines
Innovative Pipeline for Your EngineDiscover our pipeline with the comparison number 85400009921, an essential OEM spare part for engines in marine and stationary applications. This product offers excellent fit and functionality, suitable for MAN D. Trust in the quality that our OEM spare parts provide to optimize the performance of your engines.
PIPELINE - 85400009920 suitable for MAN D engines
Pipeline for Reliable ApplicationsOur pipeline with the comparison number 85400009920 is specially designed to be reliably used in various applications. This OEM replacement part offers excellent fit and represents the quality you expect from a manufacturer.Quality from MOPA MotorpartsThis product is suitable for MAN D engines and is part of the product group "Lines and pipes." As an OEM replacement part, the pipeline impresses with its durability and resistance, which are particularly in demand in marine and stationary applications.
NIPPLE - 85400009493 suitable for MAN D engines
OEM Spare Part for Various ApplicationsDiscover our Nipple product with the comparison number 85400009493, an outstanding OEM spare part specifically classified in the category Lines and pipes. This Nipple is suitable for MAN D engines and offers you the quality and reliability you need for your applications.Quality in Every AspectThe comparison number 85400009493 represents the highest standards in the manufacturing of OEM spare parts. Our Nipple meets all requirements and is designed to deliver durable performance in the most demanding conditions. Rely on this class for your projects!
NIPPLE - 85400009487 suitable for MAN D engines
Nipple replacement part with comparison number 85400009487Discover our nipple replacement part with the comparison number 85400009487, which offers an optimal solution for the requirements in the category Lines and pipes. This OEM replacement part is specifically designed to reliably support your engines and maximize performance.
NIPPLE - 85400009486 suitable for MAN D engines
Nipple spare part with comparison number 85400009486Discover the nipple spare part with the comparison number 85400009486, specially designed for applications in lines and pipes. This product impresses with its excellent fit and durability.Precision through OEM spare partsThis nipple spare part is an OEM spare part, developed to fit MAN D engines. Thanks to its precise fit, it is ideal for demanding use in various applications.
NIPPLE - 85400009485 suitable for MAN D engines
Nipple – Your Spare Part for Marine and Stationary UseDiscover our nipple, comparison number 85400009485, suitable for MAN D engines. This OEM spare part belongs to the article group "Lines and pipes" and impresses with first-class workmanship and quality. Our products are specifically designed for diesel and gas engines in marine and stationary applications.
STAND PIPE END - 85400009043 suitable for MAN D engines
Stand pipe end with comparison number 85400009043Our stand pipe end with the comparison number 85400009043 is an essential OEM spare part that offers optimal performance. This product, suitable for MAN D engines, belongs to the article group lines and pipes and ensures a reliable connection in various applications.
PIPELINE - 85400009004 suitable for MAN D engines
Pipeline suitable for MAN D enginesDiscover our pipeline (comparison number: 85400009004), which has been specially developed to optimize the performance of your engines. This product is an essential replacement part that integrates perfectly into systems. Weighing only 0.13 kg, the pipeline impresses not only with its lightweight design but also with its durability.Optimal performance with replacement partsThe pipeline, suitable for MAN D engines, is part of the product group "Lines and pipes." By using replacement parts, you achieve the highest quality and reliability that you need for your applications in marine and stationary areas. Rely on the superior design of the pipeline to ensure the efficiency of your machines over the long term.
PIPELINE - 85400008900 suitable for MAN D engines
Robust Pipeline Suitable for MAN D EnginesDiscover our pipeline with the comparison number 85400008900, specially designed to provide performance and reliability. This product is an OEM spare part categorized under Lines and pipes and represents the ideal solution for challenging operating conditions.OEM Spare Parts with Verified QualityOur pipeline is suitable for MAN D engines and meets the high standards that OEM spare parts offer. Rely on components specifically designed for sustainable performance, enabling you to maintain smooth operation.
PIPELINE - 85400008899 suitable for MAN D engines
Reliable Pipeline for Demanding ApplicationsDiscover our powerful pipeline listed under the reference number 85400008899. This product is an essential OEM spare part that provides you with the reliability and consistency you need for your applications. The pipeline is specifically designed to fit MAN D engines and ensures optimal power transfer.
PIPELINE - 85400008896 suitable for MAN D engines
Robust Pipeline – Your Solution for EnginesDiscover our pipeline with the comparison number 85400008896, which is compatible with MAN D engines. As part of the product group "Lines and pipes", this product offers outstanding performance and durability for marine and stationary applications. Weighing only 0.4 kg, the pipeline is both robust and easy to handle.OEM Spare Parts for Maximum EfficiencyOur pipelines are OEM spare parts that come directly from the equipment manufacturer. This means that the comparison number 85400008896 precisely corresponds to the part developed for MAN D engines. Compared to aftermarket products, our spare parts provide high quality and reliability to maximize the efficiency of your engines.
PIPELINE - 85400008895 suitable for MAN D engines
Pipeline with Comparison Number 85400008895Discover our pipeline with the comparison number 85400008895, an essential OEM spare part for engines. This product belongs to the article group of lines and pipes and is specially designed for MAN D engines. Weighing only 0.18 kg, this pipeline combines lightweight design with the need for maximum efficiency.Quality Through Internal ControlsAt MOPA Motorparts, quality is our top priority. Our products, including the pipeline with the comparison number 85400008895, undergo rigorous internal controls. This ensures that all OEM spare parts are reliable and meet the demands of your engines. Rely on our pipeline to optimize the performance of your marine and stationary engines.
SPACER TUBE - 85400008811 suitable for MAN D engines
Exquisite Spacer Tube with Comparison Number 85400008811Discover the spacer tube with the comparison number 85400008811, an important OEM replacement part designed for MAN D engines. This product belongs to the category of lines and pipes and ensures a precise fit, enhancing the efficiency of your engines.Lightweight and Sturdy for Reliable PerformanceWeighing only 0.001 kg, the spacer tube is lightweight yet robust. As an OEM replacement part, it is ideal for applications in diesel and gas engines used in marine as well as stationary environments. This product contributes to the optimal performance of your machines.
Function and benefits
Marine lines connect key components such as pumps, filters, heat exchangers and tanks. They transport fluids under pressure or vacuum, depending on the system's function. Well-designed engine lines and motor pipes provide:
- Secure fluid transport with minimal pressure loss
- High resistance to vibration, temperature and corrosion
- Reliable performance in continuous operation
Whether it's marine pipes in the engine room or mechanical pipes in auxiliary systems, every connection must meet strict safety and durability standards.
Types and materials
Marine lines and engine pipes are available in various types and materials. Common variants include rigid steel lines, flexible hoses, double-walled pipes for fuel systems, and high-temperature resistant exhaust lines. Motor lines can be configured to carry fluids like oil, coolant, compressed air or fuel depending on the system.
Mechanical lines are often used in hydraulic or pneumatic subsystems and must be able to withstand pulsing pressure. All pipes and fittings must be resistant to seawater, vibration and thermal cycling – especially in marine pipes and offshore applications.
Installation and maintenance
Installing mechanical pipes requires precise routing, strong mounting brackets, and high-quality seals or flanges. Leaks or misalignment can lead to reduced performance or even system failure. During regular inspections, all marine lines and motor pipes should be checked for corrosion, cracks and secure connections.
We supply a broad range of marine lines, engine pipes and system-specific fittings compatible with MTU, Deutz, MAN, Volvo Penta and MWM engines – with fast availability and OEM-level precision for maritime and industrial use.
FAQ
What are marine lines?
Marine lines are pipes and hoses used in ships to transport fluids such as oil, coolant, fuel or exhaust gases. They are designed to withstand harsh marine environments and are essential for engine operation and onboard systems.
What is the difference between engine pipes and mechanical lines?
Engine pipes are typically used in fuel, exhaust and cooling systems of the engine itself. Mechanical lines may include hydraulic or pneumatic pipes used in steering, winch systems or auxiliary machinery. Both must meet high safety and performance standards.
When should marine pipes be replaced?
Marine pipes should be replaced if there are signs of corrosion, wear, vibration damage or leakage. Regular inspections and timely replacement are crucial for preventing failures, especially in high-pressure or high-temperature systems.