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.
Choose from following:
PLUG - 20460423 suitable for Volvo/Volvo Penta engines
Plug suitable for Volvo/Volvo Penta enginesDiscover our plug (comparison number 20460423), a precise OEM replacement part specifically designed for engines. This product delivers the quality our customers expect and ensures a perfect fit. Weighing only 0.002 kg, it is easy to handle and install – optimal for your equipment.Efficient component for your requirementsThe plug is suitable for Volvo/Volvo Penta engines and offers outstanding functionality. Your decision to choose this OEM replacement part provides precision and reliability that optimize your operating costs. Trust in quality when it comes to essential replacement parts.
PLUG - 20460024 suitable for Volvo/Volvo Penta engines
Unique Plug Suitable for Volvo/Volvo PentaDiscover our product that combines excellent features with functionality: the plug with the comparison number 20460024. This OEM replacement part is specifically designed for Volvo/Volvo Penta engines. Weighing only 0.048 kg, it facilitates handling and installation.
PLUG - 20459941 suitable for Volvo/Volvo Penta engines
OEM Replacement Part: Plug with Comparison Number 20459941Discover our Plug, suitable for renowned Volvo/Volvo Penta engines. Marked with the comparison number 20459941, this product is a top-notch OEM replacement part, categorized under locking parts. It ensures a reliable connection and supports the flawless function of your engines. With a weight of only 0.012 kg, it is not only powerful but also user-friendly in handling.
PLUG - 20459910 suitable for Volvo/Volvo Penta engines
Precise Plug Suitable for Important Engine ApplicationsDiscover our plug suitable for Volvo/Volvo Penta engines, with the comparison number 20459910. This product belongs to the category of locking parts and offers the highest precision through careful processing. Weighing only 0.014 kg, our plug combines important features that are crucial for the reliability and performance of your engines.
PLUG - 20459896 suitable for Volvo/Volvo Penta engines
Application-Oriented Plug for Your EnginesDiscover our OEM spare part, the plug with the comparison number 20459896. This locking part is specifically designed to achieve perfect fitment for engines compatible with Volvo/Volvo Penta. Standard-compliant production ensures long-lasting usability that meets your requirements.
PLUG - 20459641 suitable for Volvo/Volvo Penta engines
Efficient Plug for Your ApplicationsDiscover our Plug with the reference number 20459641. This OEM spare part is optimally suitable for Volvo/Volvo Penta engines and ensures reliable functionality of your engines. The manufacturing is done according to the highest quality standards, ensuring durability and efficiency.Large InventoryThanks to our large inventory with an extensive stock, we are able to deliver various items quickly, allowing you to minimize downtime. Rely on the reference number 20459641 and our selection of OEM spare parts to provide the optimal components suitable for your Volvo/Volvo Penta engines.
PLUG - 20459195 suitable for Volvo/Volvo Penta engines
Excellent Plug: Comparison Number 20459195 Discover the plug with comparison number 20459195, an essential product precisely designed for the requirements of engines. This OEM replacement part belongs to the category of locking parts and offers a perfect solution for your demanding applications. Weighing only 0.07 kg, the plug is lightweight yet extremely robust.
PLUG - 20459191 suitable for Volvo/Volvo Penta engines
Precise Plug to Meet Your NeedsDiscover the exclusive Plug with the comparison number 20459191, suitable for Volvo/Volvo Penta engines. This product weighs only 0.042 kg and is designed to maximize the performance and reliability of your machines. Rely on a part that meets high standards.Reliable Quality with OEM PartsThe comparison number 20459191 refers to an OEM part that has been precisely developed. Unlike aftermarket solutions, our product ensures that it fits Volvo/Volvo Penta engines, providing you with optimal performance and helping to avoid long downtimes and costly repairs.
PLUG - 20450895 suitable for Volvo/Volvo Penta engines
Premium Plug Suitable for Volvo/Volvo Penta EnginesDiscover our top-quality plug, comparison number 20450895, specifically designed for Volvo/Volvo Penta engines. This OEM replacement part meets high standards in marine and stationary applications and offers excellent performance. With a lightweight of only 0.007 kg, the product can be easily installed and contributes to the longevity of your engine.Secure OEM Replacement Part for Maximum CompatibilityThe plug is suitable for Volvo/Volvo Penta engines and belongs to the category of locking parts. As an OEM replacement part, we provide you with the assurance that this component is manufactured according to the manufacturer's specifications. This way, you are well-equipped to achieve optimal results and enhance the performance of your engines.
PLUG - 20450891 suitable for Volvo/Volvo Penta engines
Reliable Plug – Comparison Number 20450891 Discover our plug with the comparison number 20450891, designed exclusively for use in engines. The application in locking parts makes this product an ideal choice. It offers the quality you expect from a top-tier replacement part.Optimal Compatibility for Volvo/Volvo Penta Engines This plug is suitable for Volvo/Volvo Penta engines, ensuring ideal integration into your existing system. You will receive a product that is perfectly tailored to the specific requirements and meets your expectations for functionality and durability.
PLUG - 20450778 suitable for Volvo/Volvo Penta engines
Precise Plug with Comparison Number 20450778Discover our top-quality plug with the comparison number 20450778, which is ideal for complex applications in the engine sector. This OEM spare part belongs to the group of locking parts and is characterized by its excellent fit. Weighing only 0.053 kg, it is extremely handy and effectively contributes to the reliability of your machinery.
PLUG - 20450767 suitable for Volvo/Volvo Penta engines
Powerful Plug Suitable for Volvo/Volvo PentaThe Plug with comparison number 20450767 is an essential component, suitable for Volvo/Volvo Penta engines. At MOPA Motorparts, we offer exclusively high-quality OEM replacement parts that meet the highest performance demands and operate your diesel or gas engines efficiently.Reliable OEM Replacement Parts for EnginesOur OEM replacement parts ensure optimal fit and functionality, which is particularly crucial for engines used in marine and stationary applications. The product with comparison number 20450767 impresses with its quality and our wide selection of available products, allowing you to rely on our solutions at any time.
PLUG - 20441859 suitable for Volvo/Volvo Penta engines
Efficient Plug with Comparison Number 20441859Discover our plug with the comparison number 20441859, suitable for the demanding requirements of Volvo/Volvo Penta engines. This product from the category locking parts ensures that your engine runs efficiently and reliably. Weighing only 0.012 kg, the plug impresses with its compact design, specifically tailored for marine and stationary use as well as for locomotives.
PLUG - 20441335 suitable for Volvo/Volvo Penta engines
Excellent OEM Replacement Part for Engine Needs Discover our Plug, the replacement part with the comparison number 20441335, specifically designed for Volvo/Volvo Penta engines. This product belongs to the category of Locking parts and offers an excellent fit and robust construction, crafted by experienced manufacturers.
PLUG - 20412745 suitable for Volvo/Volvo Penta engines
First-Class Plug for Your ApplicationsDiscover our Plug with the reference number 20412745, which impresses with its precision and reliability. This OEM spare part belongs to the group of Locking parts and is particularly suitable for marine and stationary applications as well as locomotives. With a weight of only 0.022 kg, it makes installation very easy and practical.Suitable for Volvo/Volvo Penta EnginesThis OEM spare part is suitable for Volvo/Volvo Penta engines and meets essential requirements in quality assurance. The reference number 20412745 indicates that this component is ideally tailored to your needs. Rely on the functionality of the Plug, which has been specifically developed to meet the demands of your engines.
PLUG - 20412733 suitable for Volvo/Volvo Penta engines
Secure the Plug with Comparison Number 20412733 The Plug with the comparison number 20412733 belongs to the category of OEM spare parts and impresses with its reliable fit. This product is suitable for Volvo/Volvo Penta engines and supports their smooth operation. Weighing only 0.008 kg, it combines lightness and efficiency, making it ideal for demanding applications in the marine and machinery sectors.
PLUG - 20412553 suitable for Volvo/Volvo Penta engines
Precise OEM Spare Part: Plug 20412553Discover our product, the plug with the comparison number 20412553. This OEM spare part stands out for its quality and durability, meeting the highest demands. It is used in your engine area and is specifically designed to optimally meet the requirements.Suitable for Volvo/Volvo Penta EnginesThe plug has been developed to be suitable for Volvo/Volvo Penta engines, ensuring seamless operation. With this top-quality component, you ensure the effective use of your engines and their stability under various conditions.
PLUG - 20412267 suitable for Volvo/Volvo Penta engines
Valuable Plug with Comparison Number 20412267The Plug with the comparison number 20412267 is an essential OEM spare part that has been specifically optimized for your engines. This product combines lightness and functionality, making it a perfect companion for your motor-driven systems.Quality for Engines: Suitable for Volvo/Volvo Penta EnginesThe Plug is suitable for Volvo/Volvo Penta and offers the ideal solution for your engine system. Why rely on aftermarket products when you can use a fitting OEM spare part? Unlike non-OEM components, OEM spare parts provide the exact fit and safety you need to keep your engines always performing at their best.
PLUG - 20412266 suitable for Volvo/Volvo Penta engines
Plug for Optimal Engine PerformanceDiscover the plug (comparison number 20412266), an essential OEM spare part that is perfectly suited to maintain the performance of your diesel or gas engine. With a robust design and precise manufacturing, this product significantly contributes to the longevity of your equipment. Don't forget that the comparison number 20412266 is an important reference when selecting the spare part.
PLUG - 20405895 suitable for Volvo/Volvo Penta engines
Innovative Plug for Precise ApplicationsDiscover our plug with the comparison number 20405895, an essential OEM replacement part for efficient engine applications. With a precise fit and a weight of only 0.05 kg, this product is particularly suitable when stability and functionality are required. As part of the group of locking parts, it helps ensure that your engines operate efficiently.Suitable for Volvo/Volvo Penta EnginesThis OEM replacement part is suitable for Volvo/Volvo Penta engines and allows for easy installation. By using high-quality materials, you ensure that your engines achieve optimal performance. The comparison number 20405895 makes it easier for you to select the right replacement part to prevent possible downtime.
PLUG - 20405781 suitable for Volvo/Volvo Penta engines
Essential Plug – Comparison Number 20405781Discover our plug with the comparison number 20405781. This OEM spare part impresses with top quality and functionality and is specifically designed for Volvo/Volvo Penta engines. Weighing only 0.004 kg, it is lightweight yet robust, ideal for your specific requirements in industrial applications.Quality and Safety with OEM Spare PartsThe comparison number 20405781 stands for original equipment manufacturer quality. Our product is suitable for the demanding requirements in various applications. Rely on first-class engine performance tailored to your specific conditions.Diverse Product Range for EnginesIn our assortment, we also carry items suitable for other renowned manufacturers such as MWM, Mercedes-Benz, Deutz, MAN, MTU, Bosch, and Detroit Diesel. All OEM spare parts offer the highest quality and are designed to ensure excellent performance within your engine products.
PLUG - 20405722 suitable for Volvo/Volvo Penta engines
Plug with Comparison Number 20405722Discover our product, the Plug with the comparison number 20405722. This OEM spare part is specifically designed for Volvo/Volvo Penta engines and meets the highest quality standards. Weighing only 0.026 kg, the Plug impresses in terms of effectiveness and robustness, making it ideal for marine and stationary applications.Optimal Fit for Excellent FunctionThe Plug plays a crucial role in the smooth operation of your machines. With crystal-clear precision, which is of utmost importance for Volvo/Volvo Penta engines, you can optimally adapt your systems and ensure easy installation as well as reliable performance in critical situations.
PLUG - 20405721 suitable for Volvo/Volvo Penta engines
Convincing Product: Comparison Number 20405721 Discover our Plug with the comparison number 20405721 – an essential product that provides you with reliability and is perfectly suited for various applications. This OEM spare part belongs to the group of Locking parts and ideally supports the functionalities of engines that are suitable for Volvo/Volvo Penta.
PLUG - 20405719 suitable for Volvo/Volvo Penta engines
Essential Plug for Motorized SystemsDiscover the plug with the reference number 20405719, which provides indispensable functionality. This replacement part ensures that your Volvo/Volvo Penta engines operate reliably. The excellent quality of the product enhances efficiency and ensures long-term use.Suitable for Various Engine TypesThe plug is designed to be compatible with several Volvo/Volvo Penta engines. Weighing only 0.022 kg, installation is particularly easy and quick to carry out. Rely on our extensive experience for seamless integration into your existing machinery.
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.
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.