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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 - 20405718 suitable for Volvo/Volvo Penta engines

PLUG - 20405718 suitable for Volvo/Volvo Penta engines

Precise Plug for Marine ApplicationsDiscover our valuable product that is suitable for Volvo/Volvo Penta engines. With the reference number 20405718, you will receive a Plug of the highest precision, serving as an ideal locking part in your engine solution.

Sale price: €2.25Regular price:€2.50(10% saved)
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PLUG - 20405717 suitable for Volvo/Volvo Penta engines

PLUG - 20405717 suitable for Volvo/Volvo Penta engines

Precise Plug for Optimal PerformanceDiscover our plug with the comparison number 20405717 – an essential OEM replacement part for your needs. This product is meticulously constructed and offers an excellent fit suitable for Volvo/Volvo Penta engines. Weighing just 0.044 kg, the plug demonstrates its efficiency and practicality, making it ideal for applications in marine and stationary technology.

Sale price: €6.47Regular price:€7.19(10% saved)
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PLUG - 20405716 suitable for Volvo/Volvo Penta engines

PLUG - 20405716 suitable for Volvo/Volvo Penta engines

Premium Plug for Demanding ApplicationsDiscover our attractive product suitable for specific engines: the plug with the comparison number 20405716. This OEM replacement part is an essential component that can be optimally used in Volvo/Volvo Penta engines. With a low weight of just 0.024 kg, it simplifies handling without compromising on performance. Rely on the functionality that your engine needs!

Sale price: €1.87Regular price:€2.08(10% saved)
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PLUG - 20405643 suitable for Volvo/Volvo Penta engines

PLUG - 20405643 suitable for Volvo/Volvo Penta engines

Innovative Product for Your ApplicationsThe plug, a key component from the group of locking parts, is suitable for Volvo/Volvo Penta engines that demand the highest standards in performance and reliability. With the comparison number 20405643, this OEM replacement part offers optimal integration into your drive system, ensuring you can rely on maximum efficiency.

Sale price: €0.49Regular price:€0.55(11% saved)
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PLUG - 20405605 suitable for Volvo/Volvo Penta engines

PLUG - 20405605 suitable for Volvo/Volvo Penta engines

Integrate Quality in Your Projects Discover our Plug with the reference number 20405605, which has been tested as an OEM replacement part. This product meets the highest standards and can be reliably used in various applications. Weighing only 0.012 kg, it stands out for its ease of handling.Suitable for Volvo/Volvo Penta Engines Our Plug is suitable for Volvo/Volvo Penta engines, which simplifies its implementation in your system architecture. The precision and fit ensure that our product delivers optimal results.

Sale price: €5.63Regular price:€6.25(10% saved)
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PLUG - 20405553 suitable for Volvo/Volvo Penta engines

PLUG - 20405553 suitable for Volvo/Volvo Penta engines

First-Class OEM Replacement Part for EnginesDiscover the product plug with the reference number 20405553, an innovative OEM replacement part specifically designed to be suitable for Volvo/Volvo Penta engines. This replacement part belongs to the group of locking parts and offers unparalleled accuracy. Weighing only 0.006 kg, our product enhances efficiency in your application.Trust the reference number 20405553The reference number 20405553 identifies our plug as an OEM replacement part, designed for various requirements in segmented use. We rely on strict internal controls during manufacturing and ensure that each part meets the highest quality standards. This gives you the confidence to receive effective replacement parts that are durable and reliable.

Sale price: €2.25Regular price:€2.50(10% saved)
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PLUG - 20405506 suitable for Volvo/Volvo Penta engines

PLUG - 20405506 suitable for Volvo/Volvo Penta engines

PLUG with the comparison number 20405506 suitable for Volvo/Volvo Penta engines

Sale price: €2.11Regular price:€2.34(10% saved)
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PLUG - 20381177 suitable for Volvo/Volvo Penta engines

PLUG - 20381177 suitable for Volvo/Volvo Penta engines

Premium Plug for Reliable PerformanceThe plug (comparison number 20381177) is an indispensable OEM spare part that helps you maintain the functionality of your engines. Weighing only 0.027 kg, this product is specifically designed for demanding applications, such as marine and stationary use.Suitable for Volvo/Volvo Penta EnginesThis plug is suitable for Volvo/Volvo Penta engines, ensuring perfect integration into your existing systems. When selecting spare parts, trust our quality-tested production. Each OEM spare part is meticulously tailored to the requirements of the manufacturers.

Sale price: €6.01Regular price:€6.68(10% saved)
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PLUG - 20366642 suitable for Volvo/Volvo Penta engines

PLUG - 20366642 suitable for Volvo/Volvo Penta engines

Excellent Plug for Professional ApplicationsDiscover our plug with the comparison number 20366642, a thoughtful component that has been comprehensively tested. This part belongs to the category of locking parts and provides you with the necessary connection for important engine applications. Weighing only 0.004 kg, it remains both lightweight and effective.Optimal Compatibility for Engine ApplicationsThe plug is suitable for Volvo/Volvo Penta engines and is ideal for various applications in the machinery industry. We focus exclusively on controlled parts that excel in quality and functionality. Unlike many aftermarket products, our items offer the necessary precision and durability for long-term use.

Sale price: €19.62Regular price:€21.80(10% saved)
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PLUG - 200908000000/45 suitable for MTU engines

PLUG - 200908000000/45 suitable for MTU engines

Robust and Reliable Plug Discover our plug, marked with the comparison number 200908000000/45 and specifically designed for MTU engines. This product belongs to the category of locking parts and is engineered to meet the highest standards. The quality of these components provides you with the assurance you need for use in demanding applications.Perfect Fit for MTU Engines The plug is compatible with all MTU engines and impresses with its excellent fit. With the comparison number 200908000000/45, you secure a reliable part that ensures complete dependability. In competition with traditional aftermarket products, our part ensures that your engine performs at maximum efficiency.

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PLUG - 192212 suitable for Volvo/Volvo Penta engines

PLUG - 192212 suitable for Volvo/Volvo Penta engines

Efficient Plug: Comparison Number 192212The Plug with the comparison number 192212 is an indispensable OEM replacement part from the category of Locking parts. It has been precisely developed and is suitable for specific applications, particularly for compatible with Volvo/Volvo Penta engines. Weighing only 0.026 kg, it integrates seamlessly into your existing installations.

Sale price: €25.48Regular price:€28.31(10% saved)
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PLUG - 192114 suitable for Volvo/Volvo Penta engines

PLUG - 192114 suitable for Volvo/Volvo Penta engines

Flexible Plug for High-Quality Applications Discover our Plug 192114, a top-notch OEM replacement part designed for Volvo/Volvo Penta engines. This product falls under the category of Locking parts and ensures that your engines operate safely and reliably. With a weight of only 0.068 kg, the Plug is easy to install.Efficient OEM Replacement Parts at the Best PriceOur OEM replacement parts, such as the Plug with the comparison number 192114, offer you the optimal combination of quality and affordability. By purchasing replacement parts suitable for Volvo/Volvo Penta, you benefit from manufacturer quality that ensures powerful operation for your business. This allows you to save costs while maintaining the performance of your engines.

Sale price: €9.56Regular price:€10.62(10% saved)
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PLUG - 191830 suitable for Volvo/Volvo Penta engines

PLUG - 191830 suitable for Volvo/Volvo Penta engines

Optimal Fit in UseDiscover our Plug, available in our range with the comparison number 191830. This product is specifically designed for Volvo/Volvo Penta engines and offers exceptional accuracy for reliable maintenance of your engine. Rely on us to provide only top-quality OEM replacement parts to meet your technical requirements.Lightweight for Strong PerformanceWeighing only 0.026 kg, the Plug is an essential OEM replacement part that delivers excellent results in your application. The product with the comparison number 191830 impresses with its precise fit to the required specifications and ensures optimal efficiency of your engine.

Sale price: €17.25Regular price:€19.16(10% saved)
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PLUG - 1839970030 suitable for MTU engines

PLUG - 1839970030 suitable for MTU engines

OEM Replacement Part: Plug in DetailDiscover the high-quality plug with the comparison number 1839970030. This product is categorized under locking parts and has been precisely manufactured to provide optimal functionality. As an OEM replacement part, it ensures functionality and reliability, which are particularly important for marine and stationary applications.

Sale price: €42.14Regular price:€46.83(10% saved)
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PLUG - 180761 suitable for Volvo/Volvo Penta engines

PLUG - 180761 suitable for Volvo/Volvo Penta engines

Discover the Plug with Comparison Number 180761The Plug with comparison number 180761 is a reliable OEM spare part, suitable for Volvo/Volvo Penta. This product falls under the category of Locking parts and offers you an ideal solution for engine maintenance. Trust in quality and efficiency when maintaining your systems.Optimal Performance for EnginesThis OEM spare part is specifically designed for Volvo/Volvo Penta engines and offers excellent workmanship as well as a secure fit. Weighing only 0.032 kg, the Plug is a practical addition to your machines while ensuring optimal performance of the engines.

Sale price: €6.05Regular price:€6.72(10% saved)
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 - 180759 suitable for Volvo/Volvo Penta engines

- 180759 suitable for Volvo/Volvo Penta engines

Efficient Spare Part: Plug with Comparison Number 180759Discover our product "Plug", comparison number 180759, designed for reliable operation in demanding applications. This OEM spare part ensures optimal performance in engines, suitable for Volvo/Volvo Penta. Besides application safety, this aspect is particularly important in the marine and stationary sectors.Product Details and WeightThis product, suitable for Volvo/Volvo Penta, weighs only 0.009 kg and is excellent for special requirements. The comparison number 180759 indicates that it is a quality-verified OEM spare part that meets the high standards of the industry.

Sale price: €11.84Regular price:€13.16(10% saved)
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PLUG - 17256069 suitable for Volvo/Volvo Penta engines

PLUG - 17256069 suitable for Volvo/Volvo Penta engines

High-Quality Plug as OEM Replacement PartDiscover the plug with the comparison number 17256069, specifically designed as an OEM replacement part. This product is a prime example of the high quality you can expect from an equipment manufacturer. Precision-engineered, this plug impresses with an optimal fit for your applications.

Sale price: €52.61Regular price:€58.46(10% saved)
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PLUG - 1698627 suitable for Volvo/Volvo Penta engines

PLUG - 1698627 suitable for Volvo/Volvo Penta engines

PLUG with the comparison number 1698627 suitable for Volvo/Volvo Penta engines

Sale price: €11.83Regular price:€13.14(10% saved)
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PLUG - 1677545 suitable for Volvo/Volvo Penta engines

PLUG - 1677545 suitable for Volvo/Volvo Penta engines

Ideal for demanding applications – PlugThe plug with the comparison number 1677545 is an OEM replacement part specifically designed for Volvo/Volvo Penta engines. With this comparison number, you ensure that you have exactly the right replacement part on hand to efficiently support the performance of your drivetrain. Experience quality components that prove their worth.Optimal handling – Lightweight for operational efficiencyWeighing only 0.017 kg, our plug is perfectly suited for use in various stationary and marine applications. This product ensures reliable functionality to optimize the effectiveness of your applications.

Sale price: €10.40Regular price:€11.56(10% saved)
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PLUG - 16318 suitable for Volvo/Volvo Penta engines

PLUG - 16318 suitable for Volvo/Volvo Penta engines

Efficient OEM Replacement Part for EnginesDiscover the plug with the comparison number 16318, an efficient and essential product specifically designed for Volvo/Volvo Penta engines. Weighing only 0.012 kg, this OEM replacement part offers exceptional quality tailored to the demands of rigorous engine applications. Trust MOPA Motorparts, your competent source for engine replacement parts.Excellent Application OpportunitiesThe plug is ideally suited for maritime and stationary applications and impresses with its precise fit. Through targeted processing, the product delivers reliable performance in various applications, whether you are conducting a repair or maintenance. Our OEM replacement parts are specifically designed for processes where performance and safety are paramount.

Sale price: €34.97Regular price:€38.86(10% saved)
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PLUG - 1629701 suitable for Volvo/Volvo Penta engines

PLUG - 1629701 suitable for Volvo/Volvo Penta engines

Reliable Plug for Optimal FunctionDiscover the OEM spare part Plug with the part number 1629701, an essential component of the group Locking parts. This product is compatible with Volvo/Volvo Penta engines and ensures smooth functionality in demanding applications.

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PLUG - 1580973 suitable for Volvo/Volvo Penta engines

PLUG - 1580973 suitable for Volvo/Volvo Penta engines

Ergonomic Solution: PlugThe plug with the comparison number 1580973 is an essential OEM spare part that is perfectly suited for your Volvo/Volvo Penta engines. This product is characterized by its robust construction, ensuring the highest reliability. Particularly suitable for demanding applications, these OEM spare parts provide the performance and durability you can expect.Adjustments for Experienced Users: Suitable for OEM EnginesThe comparison number 1580973 makes this plug an OEM spare part specifically designed for the manufacturers Volvo and Volvo Penta. The careful design allows for seamless integration into your machines, ensuring that your engines operate efficiently at all times. Trust us for your OEM spare parts.

Sale price: €0.71Regular price:€0.79(10% saved)
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PLUG - 1556192 suitable for Volvo/Volvo Penta engines

PLUG - 1556192 suitable for Volvo/Volvo Penta engines

Must-have spare part for reliable engines Discover our plug, an essential product with the comparison number 1556192. This OEM spare part from the category of locking parts impresses with its fit and functionality and is suitable for Volvo/Volvo Penta engines.

Sale price: €4.21Regular price:€4.68(10% saved)
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PLUG - 1549140 suitable for Volvo/Volvo Penta engines

PLUG - 1549140 suitable for Volvo/Volvo Penta engines

Premium Supply for EnginesDiscover the excellent plug (comparison number: 1549140), specifically designed to be powerful and reliable. This product is lightweight (0.052 kg) and is engineered to offer optimal functionality in various engine cases.Efficiently Compatible with Volvo/Volvo Penta EnginesThis OEM replacement part is perfectly suitable and specially designed for Volvo/Volvo Penta engines. Rely on materials and processes that meet the challenges of machine operation and provide your engine with the best quality on the market.

Sale price: €51.32Regular price:€57.02(10% saved)
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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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