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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 - 04404693 suitable for MWM & Deutz engines

PLUG - 04404693 suitable for MWM & Deutz engines

PLUG with the comparison number 04404693 suitable for MWM & Deutz engines

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PLUG - 04391436 suitable for MWM & Deutz engines

PLUG - 04391436 suitable for MWM & Deutz engines

Perfect OEM Replacement Part: PlugDiscover the plug with the comparison number 04391436, a reliable OEM replacement part that offers you great reliability. The replacement part is suitable for MWM & Deutz engines and enables optimal performance in various applications.

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PLUG - 04442711 suitable for MWM & Deutz engines

PLUG - 04442711 suitable for MWM & Deutz engines

Excellent Plug for Demanding EnginesDiscover our plug, which carries the comparison number 04442711. This OEM replacement part is specially designed to be optimally compatible with engines. The plug is suitable for MWM & Deutz engines and meets the highest quality standards.Reliable OEM Replacement Parts for Your EnginesWe offer you only OEM replacement parts – this gives you the assurance that every product meets the highest demands. The plug with the comparison number 04442711 is the best choice for demanding applications. Trust in our expertise in providing products for engines in marine and stationary use.

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PLUG - 04442785 suitable for MWM & Deutz engines

PLUG - 04442785 suitable for MWM & Deutz engines

Plug with Comparison Number 04442785Discover our Plug with the comparison number 04442785, which is suitable for MWM & Deutz engines. As part of our product category, this OEM replacement part provides you with the safety and precision that can only be offered by manufacturers recognized in the industry.

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PLUG - 04388248 suitable for MWM & Deutz engines

PLUG - 04388248 suitable for MWM & Deutz engines

Plug with Comparison Number 04388248Discover the reliable plug with the comparison number 04388248, suitable for a variety of applications. With this product, you receive a compatible component specifically manufactured to meet the highest demands.Suitable for MWM & Deutz EnginesThe plug is perfectly suited for MWM & Deutz engines. The top-notch craftsmanship ensures a precise fit, benefiting the performance of your engines. Rely on our OEM spare parts to maximize the lifespan of your machines.

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PLUG - 04388535 suitable for MWM & Deutz engines

PLUG - 04388535 suitable for MWM & Deutz engines

Quality That Convince: Plug 04388535Discover the Plug with the comparison number 04388535, specifically designed for engines. This OEM replacement part provides the excellent precision you need for your application.Suitable for MWM & Deutz EnginesThis product is suitable for MWM & Deutz engines and belongs to the category of locking parts. Thanks to careful manufacturing techniques, the OEM replacement part offers optimal functionality and durability.

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PLUG - 04395315 suitable for MWM & Deutz engines

PLUG - 04395315 suitable for MWM & Deutz engines

Excellent Product with Comparison Number 04395315Discover our Plug with the comparison number 04395315, which has been specifically designed to meet the requirements of engines. This product is an essential OEM replacement part that functions reliably and fits optimally to your needs.

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PLUG - 04417480 suitable for MWM & Deutz engines

PLUG - 04417480 suitable for MWM & Deutz engines

Excellent Plug with Precise FitDiscover our product – the plug with the reference number 04417480, which is ideal for your requirements. This OEM spare part meets the highest demands and ensures a perfect fit.Versatile Applications in Engine TechnologyThis plug is compatible with MWM & Deutz engines. With its additional precision, it optimizes the functionality and longevity of your engines. Our OEM spare parts provide outstanding performance and stability.

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PLUG - 04388042 suitable for MWM & Deutz engines

PLUG - 04388042 suitable for MWM & Deutz engines

Premium Plug – Comparison Number 04388042Discover our Plug with the comparison number 04388042, a significant OEM spare part that ensures reliable performance for your diesel and gas engines. This product secures the functionality of engines and special equipment and is the essential component in your machinery fleet.

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PLUG - 04443363 suitable for MWM & Deutz engines

PLUG - 04443363 suitable for MWM & Deutz engines

Excellent Plug for Demanding ApplicationsDiscover our plug with the comparison number 04443363, an essential OEM spare part for use in high-quality engine systems. This product belongs to the group of locking parts and offers a reliable solution for your requirements in the marine and stationary sectors.Suitable for MWM & Deutz EnginesThis OEM spare part is specifically designed to be suitable for MWM & Deutz engines. The comparison number 04443363 signifies the exact fit you can expect from top-quality spare parts. Rely on quality to optimize the performance of your engines.

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PLUG - 04400306 suitable for MWM & Deutz engines

PLUG - 04400306 suitable for MWM & Deutz engines

Plug suitable for MWM & Deutz enginesDiscover our high-quality plug with the comparison number 04400306, an important component in the category of locking parts. This product is suitable for MWM & Deutz engines and ensures optimal functionality and efficiency thanks to its highest precision.Quality you can rely onAs an OEM replacement part according to comparison number 04400306, our plug meets the highest standards in quality. Each component is crafted to provide a perfect fit for your applications and supports a long lifespan of your engines.

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PLUG - 04395317 suitable for MWM & Deutz engines

PLUG - 04395317 suitable for MWM & Deutz engines

Secure OEM Replacement Part for Reliable ApplicationsOptimize the performance of your engines with our plug, which is listed under the comparison number 04395317. This OEM replacement part has a special fit and was specifically designed for MWM & Deutz engines. Rely on the highest quality that your machines require.

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PLUG - 04406185 suitable for MWM & Deutz engines

PLUG - 04406185 suitable for MWM & Deutz engines

Precision Plug for Your MachinesThe plug with the comparison number 04406185 is an essential OEM spare part, suitable for MWM & Deutz engines. As a comparison number, it indicates what is crucial for the correct selection of spare parts. Minimal tolerances ensure a perfect fit in your engine, which is essential for smooth operation.

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PLUG - 04409612 suitable for MWM & Deutz engines

PLUG - 04409612 suitable for MWM & Deutz engines

Plug with Comparison Number 04409612The plug with the comparison number 04409612 is a significant OEM spare part that is essential for your engine. This product impresses with top-notch quality that meets industry standards.

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PLUG - 04427670 suitable for MWM & Deutz engines

PLUG - 04427670 suitable for MWM & Deutz engines

Powerful Plug with Comparison Number 04427670 Discover our plug with the comparison number 04427670, which is optimally tailored to your requirements. This OEM spare part offers the best accuracy and meets high quality standards.

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PLUG - 04408416 suitable for MWM & Deutz engines

PLUG - 04408416 suitable for MWM & Deutz engines

Plug compatible with MWM & Deutz enginesDiscover our significant plug (reference number: 04408416), an exquisite OEM replacement part compatible with MWM & Deutz engines. This product meets the highest standards and ensures efficient functionality of your machines in marine and stationary applications.Ensuring quality through internal controlsWe place great importance on quality. Every OEM replacement part undergoes strict internal controls to ensure the efficiency and longevity of your engines. The plug is optimally suited for MWM & Deutz engines and provides you with the reliability you need.

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PLUG - 04418529 suitable for MWM & Deutz engines

PLUG - 04418529 suitable for MWM & Deutz engines

Discover the Plug – Comparison Number 04418529Discover our OEM replacement part, the Plug with the comparison number 04418529. This product is an essential component, compatible with MWM & Deutz engines. The part ensures precise fit so that your engines operate optimally.Variety in Offer: MOPA MotorpartsWith over 1 million replacement parts in our range, we provide the optimal solution to meet all requirements for your engines. The Plug is suitable for MWM & Deutz and many other applications that require reliable performance.

PLUG - 04392279 suitable for MWM & Deutz engines

PLUG - 04392279 suitable for MWM & Deutz engines

Innovative Plug for Your EnginesDiscover our plug with the comparison number 04392279, an important component suitable for MWM & Deutz engines. As an OEM replacement part, it offers a quality that meets the stringent requirements of respective manufacturers and is ideal for marine and stationary applications.Efficiency and PerformanceWith the comparison number 04392279, you support the efficiency of your machines. The product is suitable for MWM & Deutz engines and ensures that your engines can reach their optimal performance. Rely on OEM replacement parts that are specifically designed for demanding applications.

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PLUG - 04416379 suitable for MWM & Deutz engines

PLUG - 04416379 suitable for MWM & Deutz engines

Top-Quality Plug: Your Ideal ChoiceDiscover the powerful plug with the comparison number 04416379, designed for MWM & Deutz engines. This OEM replacement part is characterized by excellent quality and accuracy. You can rely on optimal performance in demanding applications.

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PLUG - 04386262 suitable for MWM & Deutz engines

PLUG - 04386262 suitable for MWM & Deutz engines

Discover the Premium PlugThe plug with the comparison number 04386262 is an essential product that falls under the category of locking parts. This OEM replacement part is perfectly suitable for machines that are compatible with MWM & Deutz engines. Maximum precision ensures the highest efficiency.Reliability for Your EnginesOur plug ensures stable connections and is expertly crafted to meet the requirements in marine and stationary applications. We offer OEM replacement parts specifically designed to be compatible with engines from selected manufacturers. Rely on high-quality craftsmanship for your technical needs.

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PLUG - 04407263 suitable for MWM & Deutz engines

PLUG - 04407263 suitable for MWM & Deutz engines

Reliable Plug with Comparison Number 04407263The product with the comparison number 04407263 is a top-quality plug specifically designed for use in engines. This OEM spare part impresses with high precision and durability, which is particularly significant for demanding applications and optimizes the performance of your machines.Suitable for MWM & Deutz EnginesThis plug is a direct fit for MWM & Deutz engines. It offers optimal support for the operation of these powerful engines and ensures flourishing efficiency on board your applications or sites.

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PLUG - 04408213 suitable for MWM & Deutz engines

PLUG - 04408213 suitable for MWM & Deutz engines

Premium Fit and ReliabilityDiscover our plug under the comparison number 04408213. This OEM replacement part belongs to the category of locking parts and is specifically designed for MWM & Deutz engines, making it ideal for demanding applications.Unmatched Quality of OEM Replacement PartsThe plug impresses with the highest precision, ensuring that it meets the requirements for engines compatible with MWM & Deutz. Rely on our OEM replacement parts, which offer robustness and durability for optimal performance in diesel and gas-operated engines.

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PLUG - 04416705 suitable for MWM & Deutz engines

PLUG - 04416705 suitable for MWM & Deutz engines

Precise Solutions: Plug with Comparison Number 04416705 The plug with the comparison number 04416705 is the perfect OEM replacement part that meets your requirements for MWM & Deutz engines. We offer only OEM replacement parts that are specifically designed for use in marine and stationary engines.Quality Products: OEM Replacement Parts for Engines This product is suitable for MWM & Deutz and provides an exact fit as well as outstanding attributes for durability. As a family-owned business in its second generation, we understand the specific requirements for engine parts and provide only products that meet these needs.

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PLUG - 04406129 suitable for MWM & Deutz engines

PLUG - 04406129 suitable for MWM & Deutz engines

Efficient Plug Suitable for MWM & Deutz EnginesThe plug with the reference number 04406129 is an essential spare part designed for MWM & Deutz engines. This OEM spare part ensures precise integration and the necessary reliability for your engines. Unlike aftermarket products, our product offers superior quality and durability.

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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