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Fittings – connection components for engines & systems

Fittings are essential elements in engine systems, industrial machinery and marine environments. As mechanical connection points, they ensure tight, durable and vibration-resistant links between components. Whether you're dealing with marine fittings for boats or engine fittings for industrial motors, high-quality fittings are critical for maintaining operational safety and performance.

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T-UNION - 85300011784 suitable for MAN D engines

T-UNION - 85300011784 suitable for MAN D engines

Exclusive T-Union for High Performance RequirementsDiscover our OEM replacement part, the T-union, under the reference number 85300011784. This product is specially designed to be compatible with MAN D engines and offers excellent connection quality. Weighing only 0.06 kg, the T-union is easy to handle and significantly facilitates installation. Rely on a product that ensures optimal performance for your engines.Reliable OEM Replacement Parts for Your ApplicationsThe T-union belongs to the category of fittings and armatures and provides durable solutions for your diesel or gas engines. This component is suitable for MAN D engines and is essential for applications in marine and stationary use as well as for locomotives. We offer OEM replacement parts that provide the quality you need to operate your machines effectively.

T-UNION - 85300011783 suitable for MAN D engines

T-UNION - 85300011783 suitable for MAN D engines

T-Union – Precision for Your ApplicationsDiscover the T-union with the comparison number 85300011783, which provides reliable solutions for your applications. Weighing only 0.08 kg, this fitting is compatible with MAN D engines and represents the highest precision in manufacturing. Our T-union is the ideal product for professional users in the marine and stationary sectors.

T-UNION - 85300011782 suitable for MAN D engines

T-UNION - 85300011782 suitable for MAN D engines

Precise T-Union for EnginesDiscover the T-union – a precise and high-quality OEM replacement part, marked with the comparison number 85300011782. This product belongs to the category of fittings and armatures and is optimized to meet the highest standards. It is suitable for MAN D engines and is ideal for use in marine and stationary applications.

T-UNION - 85300011781 suitable for MAN D engines

T-UNION - 85300011781 suitable for MAN D engines

T-Union for Your Engine Needs Discover the T-union with the comparison number 85300011781, an indispensable OEM spare part for your applications. This product belongs to the group of fittings and armatures and impresses with its precise processing. Weighing only 0.04 kg, the T-union is ideal for optimizing connections in your engine operations.Efficient Solutions for MAN D EnginesThe T-union is compatible with MAN D engines and ensures an efficient connection and sealing in your applications. Due to its excellent quality, it is an OEM spare part that helps enhance the performance of your engines while minimizing downtime.

UNION - 85300011778 suitable for MAN D engines

UNION - 85300011778 suitable for MAN D engines

Technically sophisticated union with comparison number 85300011778Discover our product, the union with the comparison number 85300011778. This OEM replacement part is ideally suited for applications that require fittings and armatures. The thoughtful design of this union ensures reliable functionality, which is essential for engines.

UNION - 85300011777 suitable for MAN D engines

UNION - 85300011777 suitable for MAN D engines

High-Performance Union compatible with MAN D enginesDiscover our reliable product, the Union (comparison number: 85300011777), compatible with MAN D engines. This fittings and armatures spare part is designed to provide you with the necessary performance and efficiency you need in demanding applications. Weighing only 0.03 kg, the Union impresses with ease of handling and quick installation.OEM Spare Parts for Maximum PerformanceWe offer exclusively OEM spare parts that meet the highest standards of quality and fit. The Union carries the comparison number 85300011777, ensuring optimal fit and functionality for MAN D engines. Unlike aftermarket products, which often do not offer the same quality, you can rely on our OEM spare parts to optimize the performance and longevity of your systems.

UNION - 85300011776 suitable for MAN D engines

UNION - 85300011776 suitable for MAN D engines

Essential Union for MAN D EnginesThe union with the comparison number 85300011776 is an essential product designed for MAN D engines. Weighing only 0.03 kg, this OEM spare part offers high functionality and efficiency for your engines. Rely on the quality you can expect from an OEM spare part.

UNION - 85300011775 suitable for MAN D engines

UNION - 85300011775 suitable for MAN D engines

Union with Comparison Number 85300011775Discover the union with the comparison number 85300011775, a precise OEM replacement part that is crucial for engines. This product is suitable for MAN D engines and belongs to the category of fittings and armatures. Weighing only 0.02 kg, the union is lightweight and easy to install, saving you time and effort.

UNION - 85300011774 suitable for MAN D engines

UNION - 85300011774 suitable for MAN D engines

Quality Product with Comparison Number 85300011774Our union with the comparison number 85300011774 is an excellent OEM replacement part, perfectly designed to meet the demands of engines. This replacement part is suitable for MAN D engines and is characterized by high precision and reliability. Weighing only 0.02 kg, the union offers an efficient solution for various applications in the field of diesel and gas engines.Suitable for MAN D EnginesThis union is the ideal product for anyone looking for a high-quality component designed for MAN D engines. Our OEM replacement parts are intended to optimize the performance of your engines and extend uptime. Rely on dependability that is noticeable in every application.

UNION - 85300011773 suitable for MAN D engines

UNION - 85300011773 suitable for MAN D engines

Union OEM Replacement Part: Comparison Number 85300011773Discover the Union OEM replacement part with the comparison number 85300011773. This essential product is specifically designed for MAN D engines and belongs to the category Fittings and armatures. With this Union, you can optimize the functionality of your engines and increase operational reliability.Quality That ImpressesThe Union OEM replacement part, which weighs only 0.02 kg, impresses with its precision and durability. Each OEM replacement part from MOPA Motorparts is manufactured to the highest standards, ensuring you can rely on your engines. Trust in our expertise in the field of replacement parts suitable for diesel and gas engines.

THREADED UNION - 85300011511 suitable for MAN D engines

THREADED UNION - 85300011511 suitable for MAN D engines

Threaded union with comparison number 85300011511Discover the threaded union with the comparison number 85300011511, an essential OEM spare part that optimizes the functionality of engines. This threaded union is important for smooth performance and reliability.Compatible with MAN D enginesThis threaded union is compatible with MAN D engines and offers excellent fit accuracy. As an OEM spare part, it ensures that your engine remains in top shape and meets the highest standards. Rely on the precise tuning for MAN D engines.

UNION - 85300010515 suitable for MAN D engines

UNION - 85300010515 suitable for MAN D engines

Quality and Reliability: Union with comparison number 85300010515Discover our Union with the comparison number 85300010515. This reliable product from the group of Fittings and armatures is specifically designed to fit MAN D engines. Weighing only 0.5 kg, this Union combines lightness with an extremely robust construction – ideal for demanding applications in marine and stationary sectors.OEM spare parts for the highest standardsOur Union is a top-quality OEM spare part that meets the industry's stringent quality standards. This means that you receive a product designed to fit your engines. Trust in 25 years of experience in sourcing top-quality components for diesel and gas engines.

SCREW CONNECTOR - 85300010020 suitable for MAN D engines

SCREW CONNECTOR - 85300010020 suitable for MAN D engines

Efficient Screw Connector for MAN D EnginesDiscover our screw connector with the comparison number 85300010020, designed specifically for MAN D engines. This OEM replacement part offers an excellent fit and reliability that are essential for optimal engine performance. Weighing only 0.04 kg, the product is easy to handle and stands out for its suitability in marine and stationary applications, as well as in the field of locomotives.OEM Class for Demanding ApplicationsThe screw connector from our product line is made of top-quality materials and impresses with its robust construction. At MOPA Motorparts, we offer OEM replacement parts in OEM quality at affordable prices that effectively support your engines. Rely on the performance of these replacement parts, which are suitable for long-term use in various applications.

RING UNION - 85300009618 suitable for MAN D engines

RING UNION - 85300009618 suitable for MAN D engines

Premium Ring Union – Comparison Number 85300009618Discover our ring union with the comparison number 85300009618, which represents an excellent solution for professional applications. This product belongs to the category fittings and armatures and is ideally suited for use in demanding environments.Suitable for MAN D EnginesThe ring union is suitable for MAN D engines and ensures a precise fit as well as reliable functionality. Weighing only 0.08 kg, this OEM replacement part is lightweight yet robust – perfect for various applications in the marine and industrial sectors.

SCREW-FITTING UNION - 85200015078 suitable for MAN D engines

SCREW-FITTING UNION - 85200015078 suitable for MAN D engines

Screw-fitting union: Your Reliable ComponentDiscover the screw-fitting union with the comparison number 85200015078, a perfect OEM replacement part specifically designed for use with MAN D engines. This fitting offers optimal functionality and accuracy for your engines.

SCREW-FITTING UNION - 85200014269 suitable for MAN D engines

SCREW-FITTING UNION - 85200014269 suitable for MAN D engines

Versatile Screw-fitting Union for Various ApplicationsDiscover the screw-fitting union with the comparison number 85200014269, specifically designed to optimize engine performance. This OEM replacement part offers the highest quality you expect for your applications.

SCREW-FITTING UNION - 85200014122 suitable for MAN D engines

SCREW-FITTING UNION - 85200014122 suitable for MAN D engines

Screw-fitting union with comparison number 85200014122Discover the screw-fitting union with the comparison number 85200014122, designed as an excellent OEM replacement part. This precise product is specifically suitable for MAN D engines and ensures a secure connection in the operation of diesel and gas engines. Weighing only 0.04 kg, installation is easy and efficient.Reliability through high-quality manufacturingThe screw-fitting union belongs to the category of fittings and armatures and meets the highest standards for durability. The OEM replacement part is manufactured under strict quality controls to ensure functionality. We take pride in offering replacement parts in original equipment quality that are optimally tailored to the requirements of engines.

CUTTING RING - 85200013702 suitable for MAN D engines

CUTTING RING - 85200013702 suitable for MAN D engines

Robust Cutting Ring for Your NeedsDiscover our product, the cutting ring with the comparison number 85200013702, suitable for MAN D engines. This OEM replacement part offers an optimal solution for your requirements in the category of fittings and armatures. Trust in the quality you deserve.Advantages of Our Products and OEM QualityThe cutting ring is a reliable OEM replacement part that meets the highest standards. With the comparison number 85200013702, this product is suitable for MAN D engines and provides the exact fit and performance you are looking for. Robust materials and precise processing distinguish our range.

SHUT-OFF COCK - 85200013676 suitable for MAN D engines

SHUT-OFF COCK - 85200013676 suitable for MAN D engines

Effective Shut-off Cock for MAN D EnginesDiscover our shut-off cock (comparison number: 85200013676), a reliable OEM spare part suitable for MAN D engines. This product offers you the quality you can expect from a leading manufacturer.

RING UNION - 85200013581 suitable for MAN D engines

RING UNION - 85200013581 suitable for MAN D engines

Premium Replacement Part for Your EnginesDiscover our product Ring union with the comparison number 85200013581. This product impresses with its quality, which is crucial for the durability and performance of your compatible with MAN D engines. Rely on proven quality and avoid the uncertainties of aftermarket solutions.Compatible with MAN D EnginesThe Ring union is specifically designed and compatible with MAN D engines. It belongs to the category Fittings and armatures and plays a key role in the smooth operation of your diesel and gas engines. When selecting replacement parts for your engines, manufacturer parts are essential to ensure optimal performance.

RING UNION - 85200013544 suitable for MAN D engines

RING UNION - 85200013544 suitable for MAN D engines

Distinct Product: Ring UnionDiscover the ring union with comparison number 85200013544. This OEM replacement part is an essential component that optimally supports your MAN D engines. Thanks to its high precision, the ring union ensures reliable performance in your engine.Suitable for MAN D EnginesOur ring union is specifically designed and suitable for MAN D engines. Trust in the quality of our replacement parts, which meet the highest standards. Each product is designed to meet the demands of challenging applications.

THREE-WAY COCK - 85200013515 suitable for MAN D engines

THREE-WAY COCK - 85200013515 suitable for MAN D engines

Reliable Three-way Cock for MAN D Engines Discover the Three-way Cock (comparison number: 85200013515), an essential OEM replacement part for your engine applications. This product is suitable for MAN D engines and ensures efficient performance. Weighing 2.65 kg, this item fits seamlessly into your existing configuration and is the ideal choice for marine and stationary applications.Optimal Performance with OEM Replacement Parts The Three-way Cock, a top-quality OEM replacement part, delivers the quality you expect from a functional product. Utilizing state-of-the-art technologies and materials, this product offered as an OEM replacement part ensures that your engines operate optimally at all times. Its special design makes the cock suitable for MAN D engines, thereby ensuring easy installation and a perfect fit.

T-FITTING - 85200013495 suitable for MAN D engines

T-FITTING - 85200013495 suitable for MAN D engines

Qualitatively Convincing T-FittingDiscover our precise T-fitting, which impresses as an OEM replacement part with the comparison number 85200013495. This product ensures optimal functionality for your engines. Utilize the quality you expect from an OEM replacement part.Suitable for MAN D Engines: Your Reliable Replacement PartThis T-fitting is suitable for MAN D engines and ensures a perfect connection. Rely on the OEM replacement part that is manufactured to the highest standards. The exact fit ensures that your engine operates smoothly and lasts long.

SCREW-FITTING UNION - 85200012702 suitable for MAN D engines

SCREW-FITTING UNION - 85200012702 suitable for MAN D engines

Essential Screw-Fitting Union for EnginesThe screw-fitting union with the reference number 85200012702 represents an essential component in your engine technology. This OEM replacement part belongs to the category "Fittings and armatures" and is an indispensable component that can be used in various applications for engines.Compatible with MAN D EnginesThis product is compatible with MAN D engines and offers you the quality and reliability you need. With its precise construction, the screw-fitting union ensures an optimal connection between the components, thereby contributing to the efficiency of your technical systems. Trust in the durability and excellent properties of this OEM replacement part.

Function and benefits

Fittings serve as interfaces between hoses, pipes, housings and mechanical units. In engine systems, reliable engine fittings guarantee that fluids, gases and mechanical forces are securely transferred. Typical benefits of using precision-engineered fittings include:

  • Secure and leak-free connections even under high pressure
  • Resistance to corrosion, vibration and thermal stress
  • Compatibility with various systems – from engines to pumps and cooling circuits

In marine environments, fittings must additionally withstand saltwater exposure and continuous load changes, making marine fittings a category of their own in terms of robustness and reliability.

Types and applications of engine and marine fittings

The category of fittings includes threaded connectors, quick couplings, hose connectors, elbows and T-pieces. Depending on the application, these are used in fuel systems, lubrication circuits, hydraulic control systems or exhaust units. In marine settings, boat fittings must also meet international safety and classification standards.

Engine fittings are commonly integrated in high-load environments such as diesel engines, gas turbines and power units. These fittings must be both dimensionally precise and material-optimized to support system pressure and dynamic loads.

Materials and design features

Fittings are typically made from stainless steel, brass, aluminum or composite materials. In some cases, coatings are applied to improve resistance to corrosion or abrasion. Boat fittings, in particular, are often anodized or sealed for protection against marine conditions.

Advanced design features such as O-ring grooves, reinforced walls or vibration dampers improve the safety and lifespan of engine fittings. Depending on the system, fittings may also be part of quick-connect modules or modular armature systems used in motors and armatures.

Replacement and availability

Over time, fittings can become worn or corroded, especially in aggressive environments or under constant pressure. For safety-critical systems such as marine engines, timely replacement is crucial. We supply a broad range of fittings suitable for MTU, Deutz, MAN, Volvo Penta, and MWM engine types.

Whether you're working with engine fittings, boat fittings or components related to motors and armatures, our warehouse ensures fast availability and OEM-level compatibility. Each engine armature or connection unit is carefully selected for durability and ease of installation.

Fittings for industrial and marine engines – suitable for MTU, Deutz, MAN, Volvo Penta and MWM – replacement parts

Questions and answers

What is fittings?
Fittings are mechanical components used to connect pipes, hoses or structural elements in engines, industrial systems and marine applications. They are designed to ensure tight, secure and durable connections and are available in many shapes, sizes and materials.

How do fittings work?
Fittings work by mechanically joining two components, often using threads, clamps or pressure seals. In engines and motors, engine fittings maintain the integrity of fluid and air systems, while in boats and ships, marine fittings are essential for safe and corrosion-resistant connections. In the context of motor armatures, fittings help align and stabilize moving parts within dynamic systems.

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