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 - X52899100089 suitable for MTU engines
Plug with Comparison Number X52899100089The Plug with the comparison number X52899100089 is an indispensable OEM spare part that meets the highest standards and ensures reliable functionality in various engines. It impresses with precision fit and top-notch workmanship.
PLUG - X52810100094 suitable for MTU engines
Essential Plug with Comparison Number X52810100094Discover our plug with the comparison number X52810100094, an essential product for your engines. This OEM replacement part is classified under the group of locking parts and ensures optimal functionality for your applications.Enhance Performance with Customized ComponentsEnsure the functionality of your engines with our plug designed specifically for MTU engines. Compared to aftermarket products, our OEM replacement parts offer the necessary quality and reliability to operate your systems efficiently.
PLUG - X52699100533 suitable for MTU engines
Directly Controllable: Plug in DetailExperience our exclusive product, the plug with the comparison number X52699100533. This OEM replacement part is specially designed for the highest demands and belongs to the category of locking parts. With this replacement part, you receive the quality you expect.
PLUG - X52699100113 suitable for MTU engines
Quality Product for Your Application Discover our Plug, comparison number X52699100113, an OEM spare part that plays a central role in the functionality of engines. This product meets the highest standards to optimize the performance of your machines. With this comparison number, you ensure compatibility for your applications.Compatibility for Excellent Performance The Plug is designed to be compatible with MTU engines and is of top quality. It belongs to the group of Locking parts, which is crucial for the efficiency of your systems. When purchasing engine spare parts, trust in the principles of our high standards of quality.High-Performance Features for Safe Operation We not only offer the Plug compatible with MTU, but also OEM spare parts for renowned manufacturers such as MWM, Mercedes-Benz, Deutz, and many other brands. Your investments in powerful and reliable engines benefit from our market-leading alternatives.
PLUG - X52612300078 suitable for MTU engines
Robust Plug with Comparison Number X52612300078Discover our reliable Plug with the comparison number X52612300078, which is considered an indispensable OEM spare part. This product is specially designed for MTU engines and offers optimal performance in a wide range of marine and stationary applications.
PLUG - X52499100658 suitable for MTU engines
Excellent Plug for Reliable Engine PerformanceDiscover our Plug with the comparison number X52499100658, a crucial OEM spare part compatible with MTU engines. This product impresses with precise workmanship and ensures long-lasting performance. Weighing only 0.004 kg and with dimensions of 3.6 cm in length and 3.6 cm in width, with a height of 1.9 cm, this OEM spare part is useful in a variety of applications.Quality Assurance through Internal ControlThe comparison number X52499100658 ensures compatibility with technical specifications, as we place great emphasis on internal controls and the highest standards. Each Plug undergoes rigorous testing to ensure that only the best OEM spare parts are selected. This way, you can count on optimal performance from your MTU engines.
PLUG - X52499100563 suitable for MTU engines
Discover Our Plug – Comparison Number X52499100563Experience the plug (comparison number: X52499100563), an excellent replacement part specifically designed for MTU engines. This OEM replacement part offers outstanding precision and reliability for your engines. With this product, you make the right choice for smooth operations.Reliability – Suitable for MTU EnginesOur OEM replacement parts are ideally suited to optimize the performance of your engines, designed for MTU. Every plug meets the highest quality standards and has been thoroughly tested through demanding evaluations. Trust in optimal functionality and long-term stability in your applications.
PLUG - X52399100266 suitable for MTU engines
OEM Spare Part for Your Engines Discover our plug with the comparison number X52399100266. This product is an OEM spare part that has been precisely developed to meet the requirements of diesel and gas engines. With its exact fit, it optimally enhances the performance of your systems.
PLUG - X51599100076 suitable for MTU engines
Precise Spare Parts for Professional ApplicationsThe plug with the comparison number X51599100076 is an essential OEM spare part specifically designed for MTU engines. This product offers a precise fit and optimizes the efficiency and reliability of your engines, ensuring they consistently deliver optimal performance.
PLUG - X51407700036/87 suitable for MTU engines
Plug with Clear Comparison NumberDiscover the plug with the comparison number X51407700036/87, which offers suitable solutions for specific engine needs. This product belongs to the category "Locking parts" and is optimally suited for stationary use as well as in shipping.
PLUG - X51199100010 suitable for MTU engines
Insight into the Plug X51199100010Discover the Plug with the comparison number X51199100010, which offers optimal performance for your applications. This OEM replacement part has been manufactured to the highest standards and is suitable for MTU engines. Rely on our precise components to optimize your engines.
PLUG - X50499101479 suitable for MTU engines
Plug with Comparison Number X50499101479Discover our premium plug (comparison number X50499101479), suitable for MTU engines. This OEM replacement part ensures optimal performance and reliability. Each product is carefully selected to support the performance of your engines.
PLUG - X50499100039 suitable for MTU engines
Exclusive OEM Spare Part: Plug Discover our premium plug (comparison number: X50499100039), an essential OEM spare part for your machines. This product is carefully selected to provide you with the smooth functionality you expect from an OEM solution.Suitable for MTU Engines The plug is suitable for MTU engines and impresses with excellent functionality. With the comparison number X50499100039, you receive a spare part that meets the demands of your machines, particularly in maritime and stationary applications.
PLUG - X00E50208681 suitable for MTU engines
Plug for Robust Engines in UseOur plug (comparison number: X00E50208681) is a high-quality replacement part that is ideal for your needs. Suitable for MTU engines, this product is the perfect choice to operate your engines optimally.Excellent Fit for MTUThrough our stringent internal controls, we ensure that every replacement part meets high standards. The plug has been developed to fit MTU engines and provides an excellent fit.
PLUG - X00A30900099 suitable for MTU engines
Innovative Plug with Comparison Number X00A30900099Discover our Plug with the comparison number X00A30900099, specially designed and suitable for MTU engines. This product is an essential Locking part for the maintenance and repair of engines in marine and stationary applications to ensure optimal performance.
PLUG - X00A30100459 suitable for MTU engines
Selection of Plugs for Various Applications The plug with the comparison number X00A30100459 is an OEM replacement part that is particularly suitable for MTU engines. This product offers you excellent quality and reliable performance in conjunction with other engines.
PLUG - X00040472 suitable for MTU engines
Excellent OEM Replacement Part for Your EnginesDiscover the Plug, an important OEM replacement part equipped with the comparison number X00040472. This product is suitable for MTU engines and ensures maximum efficiency and performance for your applications.Precise Fit that Inspires ConfidenceThe Plug in our product line is designed to fit MTU engines. With this OEM replacement part, you ensure exact compatibility and high operational reliability. Rely on our brand quality to meet your needs in marine and stationary applications.
PLUG - X00040129 suitable for MTU engines
Durable Plug for Premium Performance The plug with the comparison number X00040129 is an OEM replacement part specifically designed for engines compatible with MTU. This product from the category of locking parts offers excellent fit and functionality to optimize the performance of your engines. Rely on top quality with our OEM replacement parts that provide long-lasting use.Suitable for MTU Engines: Reliability in Every Situation The plug is precisely tailored for MTU engines and offers seamless integration into your drive system. At MOPA Motorparts, we understand the demands of engine components. Therefore, you can count on the performance of our replacement parts, which are specifically designed for professional applications.
PLUG - X00040128 suitable for MTU engines
Premium Plug suitable for the MTU engineDiscover our plug with the comparison number X00040128, a top-class OEM replacement part designed for optimal operation of engines. With its robust construction, it offers excellent performance in various applications.Reliable measures in original equipment qualityOur OEM replacement parts, especially the plug X00040128, are designed specifically for MTU engines. As a second-generation family business, we provide components that ensure both quality and performance while remaining competitively priced.
PLUG - X00040119 suitable for MTU engines
PLUG with the comparison number X00040119 suitable for MTU engines
PLUG - X00038449 suitable for MTU engines
Robust and Reliable: Your New Replacement PartDiscover the plug with the comparison number X00038449, a top-quality product specifically designed as an OEM replacement part. This precisely manufactured locking part meets the highest standards, ensuring reliable performance.Optimal Fit: Suitable for MTU EnginesThis plug is suitable for MTU engines and meets the highest demands for performance and durability. With the comparison number X00038449, it ensures that your engine operates smoothly and extends the lifespan of your equipment.
PLUG - X00038412 suitable for MTU engines
Plug suitable for MTU enginesDiscover our product, the plug with the comparison number X00038412, suitable for MTU engines. This OEM spare part meets the highest standards and ensures stable performance of your engines.
PLUG - X00038409 suitable for MTU engines
Precision Engine Parts for ProfessionalsThe plug with the reference number X00038409 is an OEM replacement part that offers outstanding performance. It is specifically designed to work precisely for MTU engines, ensuring reliable functionality. Rely on our 25 years of experience in providing top-quality engine parts.
PLUG - X00038386 suitable for MTU engines
Powerful Plug for EnginesDiscover our plug, which is perfectly suited for your needs with the reference number X00038386. This product is designed as a replacement part compatible with MTU engines, providing you with reliable performance and durability.OEM Replacement Parts in Original Equipment QualityOur plug is one of the OEM replacement parts and offers the highest standards and quality. With the reference number X00038386, you secure a product that is precisely suitable for your MTU system, making it a proven solution for your 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.
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.