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 - 5509971130 suitable for MTU engines
Plug compatible with MTU enginesDiscover our plug, which is equipped with the comparison number 5509971130. This product is an OEM replacement part that meets the requirements of the series 331. The plug ensures that engines operate reliably and maximize their performance. Rely on a compatible product designed specifically for MTU engines, made with only the best materials.OEM replacement parts in comparisonWhen it comes to operating engines, OEM replacement parts are essential. With our product, you receive a plug compatible with MTU engines that meets the high standards of the manufacturer. Unlike aftermarket alternatives, OEM replacement parts impress with their quality, durability, and precise fit, so you can always rely on a dependable product.
PLUG - 5509970830 suitable for MTU engines
Product Details: Plug 5509970830Discover our premium plug, which you can find under the comparison number 5509970830. As an OEM replacement part, this product offers quality that meets industry standards.Suitable for MTU Series 331This plug is suitable for the MTU Series 331 and is perfect for numerous applications involving MTU engines. The precise fit ensures that the 12V331TC92 operates efficiently and can be optimized for use.
PLUG - 5509970730 suitable for MTU engines
Robust Plug for Versatile UseThe Plug with comparison number 5509970730 provides an excellent solution for motorized applications. Suitable for MTU engines, particularly for the series 331, this part ensures optimal performance in demanding environments.Quality Products from OEM ManufacturingAs an OEM replacement part, it delivers the required strength and durability that professionals expect from their components. Each part undergoes strict internal controls to ensure that the operation of your engines runs smoothly and efficiently. This is especially crucial for engines used in marine and stationary applications as well as in the locomotive sector.
PLUG - 5509970630 suitable for MTU engines
First-Class Plug for Maximum Engine Performance Discover our first-class plug (comparison number: 5509970630), perfectly tailored to the specific requirements of MTU engines. This OEM replacement part optimizes the performance of your engines and ensures reliable function in demanding applications. With this comparison number, you will receive a compatible product that is ideal for your engine needs.Quality Replacement Parts for Demanding Applications Our plug, suitable for MTU engines and specifically designed for the series 331, offers the quality and performance you can expect from OEM replacement parts. Each manufacturing process aligns with the specific requirements of engine technology. Trust our experience in providing parts that strengthen your engine fleet.
PLUG - 5509970530 suitable for MTU engines
Robust Plug – Comparison Number 5509970530 Discover our innovative plug, comparison number 5509970530, specially designed to meet the demands of engines. This product is an essential component, suitable for MTU engines of series 331 and 396, particularly for engine types 12V331TC92 and 12V396TE84. When it comes to maintaining your engine operation efficiently and reliably, you cannot overlook this OEM replacement part.Exact Dimensions and Material Quality Weighing 0.048 kg and having compact dimensions of 3 cm x 3 cm x 2.4 cm, our plug is both lightweight and handy. These features enable easy integration into existing engine systems. The suitable product ensures that you achieve optimal performance in your mechanical applications, as it meets the highest standards of OEM quality and is ideally tailored to the needs of your MTU systems.
PLUG - 5509970430 suitable for MTU engines
High-performance Plug Compatible with MTU EnginesDiscover our Plug with the comparison number 5509970430, specially designed for your engine applications. This OEM replacement part stands out for its high quality and reliability and is intended for use in marine and stationary engines.Compatible with MTU 331 – Ensure Proper UseThe Plug is compatible with the series 331 from MTU and ensures that your MTU engines operate at optimal performance. Check the comparison number 5509970430 to make sure you select the correct OEM replacement part for your 12V331TC92 engine type.
PLUG - 5509970330 suitable for MTU engines
Innovative Plug with Comparison Number 5509970330Discover the reliable plug marked with the comparison number 5509970330. This product is an essential locking part to ensure the optimal performance of your engines. The functionality and precision of this OEM replacement part are specifically designed to meet the requirements and standards suitable for MTU engines. Rely on expertise that can only be found in top-quality replacement parts.Precise Adjustments for Various ApplicationsThe plug is suitable for applications that require a precise fit. Compatible with MTU engines, particularly the series 331, it meets all systematic requirements. Especially for the engine type 12V331TC92, this important OEM replacement part is capable of supporting the operation of your engine and maximizing its use. Ensure that your machine components are coordinated - with our plug, this is easily achievable.
PLUG - 5505400181 suitable for MTU engines
Discover our Plug with Comparison Number 5505400181Discover our Plug with comparison number 5505400181, specially designed for demanding engines. This OEM replacement part is an essential component, suitable for MTU engines of the series 331 and engine type 12V331TC92. Rely on the quality standards that provide you with maximum operation.Over 1 Million Parts for Various Applications At MOPA Motorparts, we bring you over 25 years of experience and offer more than 1 million OEM replacement parts for a wide range of applications. Our range includes parts for various manufacturers, such as MWM, Mercedes-Benz, Deutz, MAN, Volvo, and Detroit Diesel, alongside the specific requirements for MTU engines.
PLUG - 5429870345 suitable for MTU engines
Quality and Efficiency: Plug in OEM ExecutionThe plug with the reference number 5429870345 is an essential OEM spare part that ensures optimal performance for engines. Weighing 40 kg, this product provides a solid foundation for safe applications.Suitable for MTU Engines – Your Optimal Replacement SolutionOur plug is suitable for MTU engines and ensures that your machines achieve maximum efficiency. As we exclusively sell OEM spare parts, this product with the reference number is exactly what is needed to replace the original components in the engine sector.
PLUG - 5379970030/45 suitable for MTU engines
Plug with Comparison Number 5379970030/45Discover our Plug with the comparison number 5379970030/45, an essential OEM replacement part optimized for durability and precision. This product gives you the assurance that it easily meets the requirements of your MTU engines to maintain performance in challenging environments.Compatibility: A Key AdvantageThis Plug is suitable for MTU engines of the series 331 and perfectly designed for the engine type 12V331TC92. Optimally constructed to enable smooth interactions within the engine frame, it ensures that your applications always operate at peak performance.
- 5379970030 suitable for MTU engines
Your reliable spare part: Plug 5379970030 Discover the Plug with the comparison number 5379970030, an OEM spare part found in our category "Lines and pipes". This product is suitable for the renowned MTU engines of the series 331 as well as for the engine types 12V331TC92. With this Plug, you ensure that the functional connection of your engines remains reliably effective in the long term.
PLUG - 5369970635 suitable for MTU engines
Discover Our Product: Plug Suitable for MTU The plug with the reference number 5369970635 meets the highest standards of quality and reliability. With this premium component, you are optimally equipped to ensure the functionality of your engines. This product has been specifically developed to enable a reliable connection and is characterized by its high precision. Trust in OEM spare parts for excellent performance in your applications.Optimal Performance for MTU EnginesThe plug is suitable for engines compatible with the MTU series 2000. The fit and functionality have been carefully tested, ensuring easy installation and maintenance of engine performance. With a positive impact on the lifespan of your machines, the OEM spare parts we offer enhance the efficiency of your drive. Using the product 5369970635 ensures the long-term reliability of your equipment.
PLUG - 5369970335 suitable for MTU engines
Perfect Accessories: Plug Comparison Number 5369970335Discover our Plug (Comparison Number: 5369970335), which is categorized under OEM spare parts. This product offers an ideal solution for users expecting the best performance from their MTU engines. As a replacement part suitable for MTU, it impresses with quality and precision.Reliability for MTU EnginesOur Plug is specifically designed and suitable for MTU to ensure optimal performance. Weighing 47.9 kg, it combines stability and durability with the precise fit that your engine requires. With us, you will find only OEM spare parts that provide your equipment with the necessary efficiency.
PLUG - 5366190715 suitable for MTU engines
Competent Plug - Your Replacement Part Suitable for MTU EnginesDiscover our plug with the comparison number 5366190715, specially designed to be suitable for MTU engines. This product belongs to the category of locking parts and impresses with first-class quality and durability. As an OEM replacement part, it meets the highest industry standards.
PLUG - 5366190215 suitable for MTU engines
Exclusive Solution: Plug with Comparison Number 5366190215Discover the Plug with comparison number 5366190215, suitable for MTU engines. This product from the group of Locking parts meets the highest standards in industrial and maritime applications.
PLUG - 5329970032 suitable for MTU engines
Plug – Efficient Engine PartsExperience maximum efficiency with our plug, marked with the reference number 5329970032. This OEM replacement part is specifically designed to meet the needs of users in marine and stationary engine technology.Reliable Fit for MTU EnginesThis product is compatible with MTU engines and offers a precise fit that ensures optimal performance and longevity. Our range covers the specific requirements of your applications.
PLUG - 5319972232 suitable for MTU engines
Precise Plug: Your Partner for EnginesDiscover our plug, which is marked with the comparison number 5319972232 and serves as a reliable OEM replacement part. This product is suitable for MTU engines and embodies the desired standard that is valued in the industry. Our OEM replacement parts stand in direct comparison to aftermarket solutions and prove themselves through sustainable performance.
PLUG - 5319971632 suitable for MTU engines
Exclusive Plug for Sustainable Engine MaintenanceOur Plug with the comparison number 5319971632 is part of the modern OEM spare parts you need for your engines. This product is specifically designed and suitable for MTU, making it ideal for long-lasting and stable applications.
PLUG - 5319971332 suitable for MTU engines
Powerful and Reliable: Plug 5319971332Discover the plug, part number 5319971332, as an ideal component for your engines. This OEM spare part offers a reliable solution suitable for MTU engines and is classified in the group of locking parts.
PLUG - 5319970032 suitable for MTU engines
Plug with Comparison Number 5319970032 Discover our plug with the comparison number 5319970032. This OEM replacement part ensures secure connections and is suitable for MTU engines. It has been carefully selected to meet the requirements of your engine system.Comprehensive Selection of OEM Replacement Parts Our range includes various OEM replacement parts specifically designed to promote the functionality of engines. The plug is an important component in the field of locking parts, which is crucial for the performance of the engines.
PLUG - 5310100019 suitable for MTU engines
High-Performance Plug Suitable for MTU EnginesDiscover our plug with the comparison number 5310100019, which has been developed as an OEM replacement part. This product weighs only 0.236 kg and combines remarkable performance with unbeatable fitting accuracy. As a vehicle component, this plug is ideally suited for engines designed for use in marine and stationary applications.Precision in Every Detail: Thanks to Internal ControlThrough our careful internal control, we ensure that every OEM replacement part, including the comparison number 5310100019, meets the highest quality standards. This is particularly important to ensure efficient operation of the engines that utilize this component. Trust in the expertise we have gained in over 25 years in engine development.
PLUG - 5279970135 suitable for MTU engines
Robust Product for Demanding ApplicationsOur plug with the comparison number 5279970135 is the ideal choice for reliable engines, suitable for MTU. The use of OEM replacement parts ensures that your machines are always efficient and safe to operate. Specifically designed for applications in marine and stationary technology, this product offers reliable performance.Innovative Solutions for EnginesThe plug with the comparison number 5279970135 belongs to the group of locking parts and is therefore suitable for the toughest operating conditions. Weighing 40 kg, it provides robustness and is an excellent choice for anyone focused on performance. Experience our OEM replacement parts, which are designed for functional safety and efficiency.
PLUG - 5279970035 suitable for MTU engines
Performance: Plug suitable for MTU enginesExperience our plug with the reference number 5279970035. This essential product is suitable for MTU engines and ensures remarkable efficiency in your application area. As locking parts, you receive reliable quality that is important for the smooth operation of your engines.Stability and Reliability of the ProductWith a weight of 110 kg, our plug impresses with its reliability and stability. It is crucial for demanding applications that require contact with powerful engines. Our many years of experience demonstrate the importance of carefully selected locking parts for optimal engine performance.
PLUG - 5260180036 suitable for MTU engines
Robust Plug with Comparison Number 5260180036Experience the powerful plug with comparison number 5260180036, specially designed for demanding applications. This OEM spare part is compatible with MTU engines and is excellent for marine and stationary use, as well as in locomotives. Weighing 138.3 kg, it provides the necessary stability for various machine requirements.Trust in OEM Spare PartsOur plug with comparison number 5260180036 belongs to the category of locking parts. Each product offers optimal fit, specially designed for the efficient functioning of engines. Rely on the performance of your machines with selected components suitable for MTU.
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.