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Locking parts – secure fastening for engines and machinery

Locking parts are essential for ensuring that fasteners and mechanical assemblies remain secure under load, vibration and thermal stress. In engines, turbines, marine systems and industrial equipment, locking parts prevent critical components from loosening during operation – a key factor for safety, durability and system integrity.

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PLUG - 51960020033 suitable for MAN D engines

PLUG - 51960020033 suitable for MAN D engines

Efficient Plug for Engine UseOur Plug with the comparison number 51960020033 is an indispensable locking part that is optimally suited to ensure precise functionality in various engines. Weighing just 0.003 kg, it offers high efficiency and adaptability. This product is ideal for applications in marine and stationary technology.Durable Materials for Every ConnectionThe Plug, compatible with MAN D, provides the necessary stability and reliability in assembly. It plays a crucial role as a component suitable for MAN D engines, creating secure seals in engine assembly. Rely on our locking parts to meet the practical demands of your technical systems.

PLUG - 51960020021 suitable for MAN D engines

PLUG - 51960020021 suitable for MAN D engines

Efficient OEM Replacement Part for Your Applications Discover our Plug, which can be clearly identified by the comparison number 51960020021. This product is an essential replacement part, compatible with MAN D engines. It offers excellent fit and functionality to optimally support your machines. Weighing only 0.001 kg, it allows for easy handling during assembly and maintenance.

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PLUG - 51960020003 suitable for MAN D engines

PLUG - 51960020003 suitable for MAN D engines

Optimal Fit with Comparison Number 51960020003The plug with the comparison number 51960020003 is an essential component for your engines. This OEM spare part ensures a reliable connection and performance that you can expect from excellent products. Our extensive expertise is at your service to provide optimal solutions.Advantages of OEM Spare PartsCompared to aftermarket products, the OEM spare part offers the fit and reliability that your MAN D engines need. This plug is suitable for MAN D engines and provides you with the quality tailored to the challenges of your operation.

Sale price: €10.80Regular price:€12.00(10% saved)
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PLUG - 51916060095 suitable for MAN D engines

PLUG - 51916060095 suitable for MAN D engines

Quality Product with Comparison Number 51916060095Discover our plug with the comparison number 51916060095. This OEM replacement part belongs to the group of locking parts and has been developed to meet the requirements in maritime and stationary applications. Weighing only 0.06 kg, the plug is lightweight yet offers excellent robustness.

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PLUG - 51916060066 suitable for MAN D engines

PLUG - 51916060066 suitable for MAN D engines

Precision and Quality: Plug 51916060066The plug with the comparison number 51916060066 is a crucial OEM spare part, ideal for use in demanding engines. With a compact design and a weight of only 0.08 kg, this product meets high standards and is excellently suited as a locking part.Reliability: Suitable for MAN D EnginesThis component is compatible with MAN D engines and thus represents a perfect addition for your applications. Thanks to our extensive experience as a family-run business in its second generation, we can offer first-class products that are perfectly tailored to the needs of our B2B customers.

Sale price: €197.64Regular price:€219.60(10% saved)
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PLUG - 51916050150 suitable for MAN D-engines

PLUG - 51916050150 suitable for MAN D-engines

Performance-Secure Plug for MAN D EnginesDiscover the plug with the comparison number 51916050150, which provides an excellent solution for all challenges of your engines. This product is particularly suitable for applications that require reliable performance. As an important locking part, it contributes to the efficiency of your machines.

Sale price: €6.48Regular price:€7.20(10% saved)
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PLUG - 51916050116 suitable for MAN D engines

PLUG - 51916050116 suitable for MAN D engines

Quality and Performance: Plug for Efficient EnginesDiscover our plug with the comparison number 51916050116. This OEM replacement part impresses with its precise fit, making it the perfect solution for your requirements. Weighing only 0.008 kg, it is optimal for use in diesel and gas engines, ensures reliable functionality, and contributes to the performance of your engines.Ideal Fit: Suitable for MAN D EnginesOur plug, suitable for MAN D engines, belongs to the category of locking parts. It secures a permanent connection and helps maximize your engine's efficiency. In our in-house quality control, we establish strict requirements so you can rely on maximum quality.

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PLUG - 51916050114 suitable for MAN D engines

PLUG - 51916050114 suitable for MAN D engines

Demanding Plug for MAN D EnginesDiscover our plug with the comparison number 51916050114, designed for MAN D engines. As part of the category of locking parts, this product ensures optimal functionality, meeting all requirements for efficiency and safety. Weighing only 0.005 kg, the plug is an ideal choice for applications in the industry.Quality through OEM Spare PartsThe comparison number 51916050114 represents an OEM spare part that brings excellent characteristics. OEM spare parts come directly from the manufacturer and provide you with quality that often aftermarket solutions cannot achieve. Benefit from reliable components tailored to individual needs to maintain the performance of your engines.

Sale price: €5.57Regular price:€6.19(10% saved)
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PLUG - 51916050111 suitable for MAN D engines

PLUG - 51916050111 suitable for MAN D engines

Efficient Plug for Engine ApplicationsDiscover our product – the Plug with comparison number 51916050111. Classified in the category of Locking parts, this OEM replacement part is designed for use in specific applications and is suitable for MAN D engines. Weighing only 0.007 kg, it is optimal for demanding operating conditions.Exact Fit for MAN D EnginesThe Plug is suitable for MAN D and offers an exact fit that is crucial for the performance of your engines. Unlike aftermarket parts, which often fail to provide the necessary quality, our product comes from MOPA Motorparts and convinces with precise manufacturing and reliability.

Sale price: €10.37Regular price:€11.52(10% saved)
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PLUG - 51910200152 suitable for MAN D engines

PLUG - 51910200152 suitable for MAN D engines

Quality of the Plug The Plug with the comparison number 51910200152 is an essential product specifically designed for MAN D engines and belongs to the group of Locking parts. Weighing only 0.025 kg, this OEM replacement part offers excellent performance for use in the marine and stationary industries.Reliable Solution for MAN D Engines This OEM replacement part provides a precise fit and functionality. Suitable for MAN D engines, the Plug is designed to meet all quality and efficiency requirements. Rely on precision and choose a product that has proven itself.

PLUG - 51910010025 suitable for MAN D engines

PLUG - 51910010025 suitable for MAN D engines

Robust Plug for Efficient ApplicationsDiscover our plug with the comparison number 51910010025, which is an indispensable part for optimizing your engines. This OEM replacement part impresses with its robust construction and facilitates use in demanding environments.

PLUG - 51910010011 suitable for MAN D engines

PLUG - 51910010011 suitable for MAN D engines

Plug for MAN D EnginesDiscover our Plug with the comparison number 51910010011, which is optimally developed to be reliably used in various applications. Additionally, it weighs only 0.002 kg, making it extremely practical for use in large engines. This OEM spare part meets the highest expectations and ensures top performance.

PLUG - 51910010008 suitable for MAN D engines

PLUG - 51910010008 suitable for MAN D engines

PLUG with the comparison number 51910010008 suitable for MAN D engines

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PLUG - 51903100258 suitable for MAN D engines

PLUG - 51903100258 suitable for MAN D engines

Exquisite Plug suitable for MAN D engines Discover our exquisite Plug, listed under comparison number 51903100258, which is optimally suited for applications in MAN D engines. This OEM spare part offers the precision and reliability you need for effective engine performance.

Sale price: €7.77Regular price:€8.63(10% saved)
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SLOTTED PLUG - 51903100226 suitable for MAN D-engines

SLOTTED PLUG - 51903100226 suitable for MAN D-engines

Slotted Plug for Professional UseDiscover the slotted plug (comparison number: 51903100226) from our group of locking parts. This OEM replacement part is compatible with MAN D engines and impresses with its light weight of only 0.09 kg, while still offering remarkable robustness.

Sale price: €181.33Regular price:€201.47(10% saved)
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PLUG - 51903020057 suitable for MAN D engines

PLUG - 51903020057 suitable for MAN D engines

Quality Plug – Comparison Number 51903020057Discover our plug with the comparison number 51903020057, which is ideal for applications in the field of MAN D engines. This product belongs to the group of locking parts and significantly contributes to the reliable operation of your engines. With a weight of 0.308 kg and compact dimensions of 4.5 cm x 4.5 cm x 4 cm, it impresses with its lightness and excellent handling in tight engine compartments.Precision – OEM Replacement Parts for Top PerformanceOur plug is an OEM replacement part that stands for the highest precision and quality. Suitable for MAN D engines, this replacement part is characterized by its durability and resilience, even under extreme operating conditions. Rely on the expertise of an experienced manufacturer and production to the highest standards to significantly optimize the performance of your engines.

Sale price: €59.00Regular price:€65.56(10% saved)
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PLUG - 51903020014 suitable for MAN D engines

PLUG - 51903020014 suitable for MAN D engines

Discover the Plug for MAN D EnginesThe Plug with the comparison number 51903020014 is a top-quality OEM replacement part designed specifically for MAN D engines. Weighing only 0.004 kg, this product not only impresses with easy handling but also with perfect fit. Rely on the supply of replacement parts and optimize the performance of your machinery.Understanding the Advantages of OEM Replacement Parts Our OEM replacement part, the Plug with the comparison number 51903020014, is innovative and specially developed to be suitable for MAN D engines. Unlike aftermarket alternatives, these parts provide the performance and reliability you can expect from a replacement part. Additionally, we offer over 1 million other items that meet your requirements.

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PLUG - 51271127002 suitable for MAN D engines

PLUG - 51271127002 suitable for MAN D engines

Excellent Plug: Comparison Number 51271127002Discover our plug (comparison number: 51271127002), suitable for MAN D engines. As part of the product group "locking parts," this product represents an ideal solution and meets the high demands of professional engine components.Quality Assurance for OEM Spare PartsOur OEM spare part has been tested through careful internal controls. With the comparison number 51271127002, this plug meets all criteria for use in MAN D engines and sets recognizable standards in precision and durability.

Sale price: €219.94Regular price:€244.37(10% saved)
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PLUG - 51254320037 suitable for MAN D engines

PLUG - 51254320037 suitable for MAN D engines

Reliable Plug for Premium EnginesDiscover the plug with the comparison number 51254320037, an indispensable OEM replacement part for your needs in the field of engines. This product combines durability and precision, supporting the flawless functionality of your equipment. Weighing only 0.004 kg, the plug is ideal for any application and facilitates integration into existing systems.

Sale price: €11.42Regular price:€12.69(10% saved)
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PLUG - 51254320026 suitable for MAN D engines

PLUG - 51254320026 suitable for MAN D engines

Flexible Plug suitable for MAN D enginesDiscover our plug (comparison number: 51254320026), which is suitable for MAN D engines. With a minimal weight of only 0.001 kg, this product offers a reliable solution for the needs of B2B customers in the marine and locomotive industry.OEM spare parts for the highest demandsThe comparison number 51254320026 marks our OEM spare part, which has been specially developed for engines. Our products are OEM spare parts that meet the high standards of manufacturers. Unlike aftermarket options, our spare parts offer a longer lifespan and optimal functionality.

Sale price: €4.18Regular price:€4.64(10% saved)
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PLUG - 51254320025 suitable for MAN D engines

PLUG - 51254320025 suitable for MAN D engines

Essential Plug for Your EngineOur product with the comparison number 51254320025 is an essential plug designed for MAN D engines. This spare part belongs to the category of locking parts and enables reliable functionality. With a low weight of only 0.001 kg, it is an extremely handy component that can be easily installed.Quality through OEM Spare PartsThe plug is an OEM spare part, based on the highest standards of the industry. Since it is precisely tailored to the performance requirements of your machines, you can rely on it to support the functionality of your engines, especially with the MAN D engines.

Sale price: €5.57Regular price:€6.19(10% saved)
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PLUG - 51254320015 suitable for MAN D engines

PLUG - 51254320015 suitable for MAN D engines

Universal Plug for All ApplicationsDiscover the plug with the comparison number 51254320015, a top-notch OEM spare part specifically designed for your needs. This product is categorized under locking parts and is characterized by excellent functionality. For those who value quality, this plug is the ideal addition.Suitable for MAN D - Functionality at the Highest LevelThe plug is suitable for MAN D engines and offers excellent integration into your technical systems. Weighing only 0.001 kg, this lightweight yet robust OEM spare part is particularly suitable for versatile applications, whether in marine or stationary use.

Sale price: €3.07Regular price:€3.41(10% saved)
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PLUG - 36354060000 suitable for MAN D engines

PLUG - 36354060000 suitable for MAN D engines

Quality Plug with Reference Number 36354060000Discover our premium plug, reference number 36354060000, which is essential for the operation of your engines. This product is specifically suitable for MAN D engines and offers excellent accuracy. By manufacturing under the highest standards, we ensure that this OEM replacement part delivers outstanding performance.OEM Replacement Parts for the Highest DemandsOur plug, suitable for MAN D engines, is produced under strict internal controls. This ensures that our replacement part meets the required technical specifications and promotes long-lasting efficiency. Rely on robust quality and top-notch functionality.

 - 2413121032 suitable for Bosch engines

- 2413121032 suitable for Bosch engines

High-Quality Plug: Efficient Solution Discover our plug, the replacement part compatible with Scania diesel engines, with the comparison number 2413121032. This OEM replacement part offers clear advantages as it is specifically designed to meet the requirements of various engines.

Function and benefits

Locking parts are used to fix bolts, nuts, shafts or rotating elements in place. They protect against unintentional movement or unscrewing due to vibration, pressure changes or torque fluctuations. Benefits include:

  • Secure hold of mechanical connections
  • Increased system safety and reduced failure risk
  • Improved service intervals and reliability

In high-performance diesel engines or marine drives, locking systems are critical to prevent loosening of vital components under continuous vibration and extreme temperatures.

Types of locking parts

Our range of locking parts includes:

  • Locking washers (e.g. serrated, tab or spring washers)
  • Locknuts and self-locking nuts
  • Locking clips and retaining rings
  • Split pins, cotter pins and safety wires

These components are available in materials such as spring steel, stainless steel, and corrosion-resistant alloys – ideal for use in marine environments or thermal cycling conditions.

Applications in marine and industrial systems

Locking parts are used in crankshaft assemblies, valve trains, coupling flanges, pump mounts and exhaust systems. In maritime settings, reliability under constant vibration and salt exposure is key. We offer OEM-locking solutions suitable for MTU, MAN, Volvo Penta, Deutz and MWM engines – suitable for both new builds and overhauls.

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

FAQ

What are locking parts used for?
Locking parts secure mechanical fasteners and rotating elements, preventing loosening due to vibration, pressure or thermal expansion. They are vital in engines and machinery to maintain operational safety and performance.

How do I choose the right locking part?
Selection depends on load, operating temperature, vibration level and component type. In high-stress environments, self-locking nuts or tab washers are often preferred over standard fasteners.

Are locking parts reusable?
Some locking parts like tab washers or safety clips are designed for single use, while others like locknuts or spring washers can be reused if undamaged. Always follow engine manufacturer guidelines for replacements.

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