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 - 81960020521 suitable for MAN D engines
Essential Plug with Comparison Number 81960020521Discover our top-quality plug dedicated to the comparison number 81960020521. This product is an essential replacement part for engines suitable for MAN D. The reliable quality of these OEM replacement parts ensures the optimal performance and longevity that your engine needs.Quality for Demanding ApplicationsThe plug has a lightweight of only 0.001 kg, making handling and installation significantly easier. As an OEM replacement part, it meets high standards and ensures that engines suitable for MAN D operate smoothly. Rely on a product specifically developed for your needs in marine and stationary applications.
PLUG - 81960020520 suitable for MAN D engines
Quality Plug for Your EnginesDiscover our plug with the comparison number 81960020520, an essential OEM spare part that perfectly fits into the category of locking parts. This product is suitable for MAN D engines and ensures maximum efficiency and reliability. Weighing only 0.001 kg, the plug can be easily integrated into various applications.OEM Spare Parts for Optimal PerformanceOur plug is a high-quality OEM spare part that meets the highest quality standards. We offer this product suitable for engines from MAN D as well as other well-known manufacturers such as MWM, Mercedes-Benz, Deutz, Volvo, MTU, Bosch, and Detroit Diesel. Rely on the durability and precision of our products to create the optimal conditions for your engines.
PLUG - 81960020519 suitable for MAN D engines
Excellent Plug with Comparison Number 81960020519Discover our plug, identified by comparison number 81960020519 and suitable for MAN D engines. This OEM replacement part impresses with an exact fit and is one of the essential components for optimal performance of your machines. Rely on the quality of OEM replacement parts to provide your devices with the best conditions.Lightweight and Functional DesignThe plug weighs only 0.001 kg, making it lightweight without compromising on sturdiness. As part of the category locking parts, this product meets the highest standards and is ideally suited for use in demanding maritime and stationary environments. Trust our expertise in the field of engines to optimize the functionality of your devices.
PLUG - 81960020508 suitable for MAN D engines
Powerful Plug for Your ApplicationsDiscover our plug, which is listed under the comparison number 81960020508. This product is an essential component specifically designed for the category of locking parts. Weighing only 0.002 kg, it is easy to install and ensures that your engines run smoothly.Quality through OEM Replacement Parts for MAN D EnginesOur plug is compatible with MAN D engines and provides the reliability you need for your applications. The OEM replacement part meets the highest standards of quality and durability. Invest in our OEM replacement parts to optimize the performance of your engines and extend their lifespan.
PLUG - 81960020504 suitable for MAN D engines
Plug compatible with MAN D engines – Your Reliable SolutionDiscover the plug with the comparison number 81960020504, which has been specifically developed to provide a perfect solution for your engine needs. This OEM spare part belongs to the group of locking parts and is an important component compatible with MAN D engines. Weighing only 0.001 kg, it allows for easy handling and installation.Quality and Precision: OEM Spare Parts for Your EnginesOur OEM spare parts are characterized by the highest precision. The comparison number 81960020504 is an indicator of the quality you can expect from MOPA Motorparts. Each plug undergoes strict quality controls to ensure that it is excellently suited for MAN D engines. Rely on the durability and functionality of our product.
PLUG - 81960020491 suitable for MAN D engines
Reliable OEM Replacement Part for Your EnginesDiscover our product, a plug, which is referenced under the comparison number 81960020491. This OEM replacement part belongs to the group of locking parts and is specifically designed to be fully compatible with engines. The top-quality materials and craftsmanship ensure smooth operation of your engines.Suitable for MAN D EnginesOur plug is suitable for MAN D engines, ensuring a fitting accuracy and performance you can rely on. Weighing only 0.008 kg, the product is both light and robust, making handling and installation easier. Invest in a reliable OEM replacement part that meets your needs.
PLUG - 81960020482 suitable for MAN D engines
Excellent Plug with Comparison Number 81960020482Discover the plug with the comparison number 81960020482, an indispensable product designed to optimize the performance of your engines. This OEM spare part offers quality and reliability, suitable for MAN D engines. Weighing only 0.001 kg, this plug is ideal for use in demanding environments.Efficient Solutions for MAN D EnginesOur plug is an OEM spare part developed to fit MAN D engines, making it a perfect addition to your machines. The precise manufacturing and high-quality standards of the OEM spare parts ensure that your engines run smoothly. Rely on this thoughtfully designed locking part for your specific requirements.
PLUG - 81960020471 suitable for MAN D engines
Precise Plug for Efficient EnginesDiscover our plug, the comparison number 81960020471, specifically designed to meet the demands of modern engines. This OEM replacement part offers quality and reliability that are essential for the operation of engines. The plug is crucial for the smooth functionality of your machines.
PLUG - 81960020461 suitable for MAN D engines
Product Information for Plug 81960020461The plug with the comparison number 81960020461 is an essential product, specifically designed to offer optimal performance for MAN D engines. This spare part belongs to the category of locking parts and is characterized by top-notch quality. Weighing only 0.001 kg, the plug is lightweight yet robust for use in demanding environments.Experience in Engine Spare PartsAs a family-owned business in its second generation, we have over 25 years of experience in the distribution of spare parts. Our products are carefully selected to meet the specific requirements of engines. With the comparison number 81960020461, we offer you a spare part that is compatible and reliable, perfectly suited for MAN D engines.
PLUG - 81960020445 suitable for MAN D engines
Excellent Spare Part: Compare PlugDiscover our plug with the comparison number 81960020445. This OEM spare part has been specifically designed to fit perfectly into MAN D engines. Benefit from the quality you expect from an OEM spare part and ensure optimal performance of your drive system.Efficient Design for MAN D EnginesThe plug with the comparison number 81960020445 has a lightweight of only 0.001 kg, ensuring easy handling. It is precisely crafted for MAN D engines and meets the highest standards in our group of locking parts. Our internal controls ensure that every product meets quality criteria that are essential for smooth operation.
PLUG - 81960020444 suitable for MAN D engines
Incredible Plug for Your ApplicationDiscover our practical product, the Plug, with the comparison number 81960020444. This component is suitable for MAN D engines and combines first-class quality with optimal functionality. Weighing only 0.01 kg, it is lightweight yet durable, ideal for your specific applications.
PLUG - 81960020440 suitable for MAN D engines
Reliable Solution for EnginesDiscover our plug with the comparison number 81960020440. This reliable OEM replacement part is specifically suitable for MAN D engines and represents an essential component from the category of locking parts. Weighing only 0.009 kg, it is optimal for various applications in marine and stationary use.
PLUG - 81960020438 suitable for MAN D engines
Plug compatible with MAN D enginesOur plug with the comparison number 81960020438 is the ideal OEM replacement part for your needs. It meets the highest quality standards and is therefore perfectly suited for use in various engines, including marine and stationary applications.Quality of OEM replacement parts – Safety for your enginesThe product we offer is an essential component for engines compatible with MAN D, thanks to its precise fit. Compared to aftermarket parts, which are often less reliable, our OEM replacement parts stand out due to their durability and performance-oriented application, making them the optimal choice.
PLUG - 81960020426 suitable for MAN D engines
Plug for MAN D Engines – Precise TechnologyDiscover our plug (comparison number: 81960020426), which is optimally tailored to the requirements of MAN D engines. This product belongs to the group of locking parts and ensures precise functionality in your machine. With a weight of only 0.001 kg, it supports the efficiency of your diesel and gas engines in marine and stationary applications.
PLUG - 81960020424 suitable for MAN D engines
Excellent Plug: Your Reliable ChoiceDiscover our stainless steel plug with the comparison number 81960020424. This quality product is an essential component in the group of locking parts. It is lightweight, weighing only 0.001 kg, and offers optimal functionality – ideal for your application.
PLUG - 81960020423 suitable for MAN D engines
Plug with Comparison Number 81960020423Discover our plug, which is listed under comparison number 81960020423 and is specifically suitable for MAN D engines. This OEM replacement part belongs to the category of locking parts and has been manufactured with the highest precision. Weighing only 0.001 kg, the product is lightweight and easy to install, making maintenance work on your engines significantly easier.
PLUG - 81960020420 suitable for MAN D engines
Plug 81960020420 – The Suitable OEM Spare PartDiscover the plug with the comparison number 81960020420, specifically designed as an OEM spare part suitable for MAN D engines. This product impresses with its excellent fit and durability, which are crucial for the performance and reliability of your engines. Weighing only 0.001 kg, this locking part can be easily integrated and meets the high demands in marine and stationary applications.Quality of OEM Spare PartsThe plug 81960020420 is an OEM spare part that offers the same quality and performance as the original components. Unlike aftermarket products, our OEM spare parts provide optimal compatibility and significantly reduced failure rates. Trust MOPA Motorparts for the best spare parts suitable for your diesel and gas engines.
PLUG - 81960020414 suitable for MAN D engines
First-Class Plug for Your ApplicationsDiscover our plug with the comparison number 81960020414, an indispensable OEM replacement part designed to support your engines optimally. Weighing only 0.001 kg, this product offers high efficiency and is ideal for various applications in marine and stationary use.
PLUG - 81960020412 suitable for MAN D engines
Convincing Product: Plug with Comparison Number 81960020412Discover our plug, which provides support for your requirements suitable for MAN D engines. With the comparison number 81960020412, this product is an indispensable locking part that offers you the quality and reliability you need. Suitable for MAN D engines, this plug ensures that your applications function smoothly.Reliability in the Category of Locking PartsOur locking part is specifically developed to meet the high demands of marine and stationary applications. The plug weighs only 0.001 kg, making it an ideal choice for anyone looking for a product that fits a variety of scenarios. Trust in our expertise and our extensive experience in providing spare parts.
PLUG - 81960020410 suitable for MAN D engines
First-Class Plug for Your SelectionThe plug with the comparison number 81960020410 is a top-quality OEM replacement part, specifically designed for a perfect fit. It belongs to the category of locking parts and impresses with high processing quality. Weighing only 0.002 kg, this product is not only lightweight but also ideally suited for numerous applications.Quality for Reliable PerformanceThis plug is suitable for MAN D engines and provides the necessary precision for flawless operation. Compared to aftermarket products, our OEM replacement parts are a reliable choice for professionals who expect a high level of quality and durability. Rely on proven quality to maximize the efficiency of your engines.
PLUG - 81960020408 suitable for MAN D engines
### Product Description: Plug 81960020408Premium Plug for MAN D EnginesDiscover our premium plug with the comparison number 81960020408, an essential OEM spare part compatible with MAN D engines. The thoughtful design of this product ensures the highest quality and optimal performance, which are crucial for the efficiency of your engines. Weighing only 0.002 kg, this spare part offers easy handling and integration into existing systems.
PLUG - 81960020404 suitable for MAN D engines
Plug suitable for MAN D enginesDiscover the plug with the comparison number 81960020404, a precise product specifically designed for use in engines. This OEM replacement part belongs to the category of locking parts and is an essential component for the optimal functionality of your machinery. Weighing only 0.01 kg, it offers easy handling and a durable solution for your technical requirements.OEM replacement parts for MAN D enginesOur comparison number 81960020404 is suitable for MAN D engines and ensures you get the best OEM replacement parts for your needs. As a second-generation family business, we specialize in providing our B2B customers with high-quality engine spare parts. With over 1 million spare parts in our inventory, we can always offer you the suitable components for your specific requirements.
PLUG - 81960020383 suitable for MAN D engines
Reliable Plug: Comparison Number 81960020383Utilize our top-quality plug with the comparison number 81960020383. This product belongs to the article group of locking parts and ensures a reliable connection in your engines. It is suitable for MAN D engines and provides the ideal fit you expect from an OEM replacement part.Ideal for MAN D EnginesThe plug with the comparison number 81960020383 weighs only 0.015 kg and is specifically designed for marine applications as well as stationary use. Our OEM replacement parts stand for excellent quality and durability that meet the demands of your engines.
PLUG - 81960020381 suitable for MAN D engines
Precision and Efficiency: Plug 81960020381Discover our plug with the comparison number 81960020381, an essential product for your engines. This OEM replacement part offers the highest functionality and fits perfectly with MAN D engines. Weighing only 0.002 kg, it is easy to install yet provides the reliability you need.
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.