Screw nuts – secure fastening for engine systems
Screw nuts are fundamental components for assembling and securing mechanical structures, especially in engine and industrial systems. Whether used in combustion engines, marine machinery or stationary equipment – high-quality screw nuts ensure reliable fastening under high loads, vibrations and temperature fluctuations. They are essential for safety, serviceability and long-term performance.
Choose from following:
ANNULAR NUT - 5619900360 suitable for MTU engines
Optimal Annular Nut for Your Engine Performance Discover the annular nut, a quality-assured OEM spare part that ensures smooth operation of your MTU engines. This annular nut (comparison number: 5619900360) is an essential component that is perfectly crafted and suitable for any professional use in the industry.Consistent Quality with OEM Spare Parts Our annular nut belongs to the category of nuts and ensures that the connection in your engines, compatible with MTU, delivers reliable performance. The features of OEM spare parts provide a long service life and stability under the highest demands.
ANNULAR NUT - 5619900260 suitable for MTU engines
Annular Nut RedefinedDiscover the annular nut with the comparison number 5619900260, a reliable product for various engine applications. This OEM replacement part is specifically designed to function optimally. Weighing only 0.026 kg, it is lightweight yet meets high demands in application.Optimal Fit for MTU EnginesThis annular nut is perfectly suited for MTU engines. The manufacturer has prioritized quality in the development, ensuring that the part is not only durable but also efficient. With this annular nut, you will significantly improve the performance of your engines while utilizing proven technology.
SLOTTED NUT - 5619900160 suitable for MTU engines
Slotted nut with comparison number 5619900160 Discover the Slotted Nut with the comparison number 5619900160 – an essential product for diesel and gas engines. This Slotted Nut is optimally suited for the group "Lines and pipes" and offers outstanding quality necessary for smooth operations in machine functions.OEM spare parts for reliability Our Slotted Nut is an OEM spare part specifically designed for MTU engines. At MOPA Motorparts, we recognize the value of top-quality components and strive to provide you only with OEM spare parts to ensure your engines operate stably over time. Benefit from our family tradition and expertise in the industry.
NUT - 5619900053 suitable for MTU engines
Reliable Nut – Suitable for MTU EnginesDiscover the nut with the comparison number 5619900053, specifically designed for engines that are suitable for MTU engines. This OEM spare part impresses with top-quality materials and the highest precision, achieving an optimal fit.Perfect Connection for Demanding ApplicationsThis nut belongs to the article group "nuts" and meets the requirements of MTU engines. Weighing only 0.123 kg, it fulfills all conditions for a consistent connection and stable hold. Your investment in this product is a step towards more reliable engines.
HEXAGON NUT - 5605890861/00 suitable for MTU engines
Quick Information on Hexagon Nut 5605890861/00The hexagon nut with the comparison number 5605890861/00 is an essential OEM spare part for engines. This product is suitable for MTU engines and ensures a secure connection of important components. Rely on our expertise and quality, which is confirmed by the manufacturer.
NUT - 5601420172 suitable for MTU engines
Excellent Solution for Your EnginesThe Nut with the comparison number 5601420172 is an essential OEM replacement part. It is specifically designed to ensure that your engine operates at optimal performance. This product is ideally suited for the engine portfolio offered by MTU, ensuring that you use durable and reliable parts. This Nut is the perfect component compatible with the series 331, 1163, and 538, and fits the engine types 12V331TC92, 16V1163TB83, and 16V538TB93.Perfect Fit for Your EnginesWeighing only 0.01 kg, the OEM Nut offers both low weight and top-notch accuracy. Thanks to the adoption of the comparison number 5601420172, you benefit from a product specially designed for MTU engines. This level of detail ensures that no compromises will be made when it comes to the performance of your engine.
UNION NUT - 5591710072 suitable for MTU engines
Powerful Union Nut for Your SystemDiscover the Union nut with the comparison number 5591710072, which is optimally suited for use in fit for MTU engines. This Union nut ensures that all mechanical components of your system always work together and that functionality is assured. Our products contribute to maximizing the performance of your engines.Suitable for MTU – Quality that ConvinceThe OEM replacement part is fit for MTU and impresses with precision as well as consistent adaptation to the series 331 and the engine type 12V331TC92. Quality is our top priority, which is why we only offer OEM replacement parts that meet the highest standards.
UNION NUT - 5590180072 suitable for MTU engines
Robust Union Nut for EnginesDiscover the union nut with the comparison number 5590180072, a high-quality OEM replacement part specifically designed to function optimally in engines. This union nut is a crucial product that helps you optimize the performance of your engines and enhance the longevity of your systems.Suitable for MTU Engines of Series 331Our union nut with the comparison number 5590180072 is suitable for MTU engines, fitting the engine type 12V331TC92. Thanks to the exact fit and production to OEM standards, we ensure that our replacement part meets the high demands of challenging applications.
COLLAR NUT - 5589900250/45 suitable for MTU engines
Reliable Collar Nut with Comparison Number 5589900250/45The collar nut with the comparison number 5589900250/45 is an important component suitable for MTU engines. This product belongs to the category of OEM spare parts that combine sustainability with a perfect fit. The exact compliance with specifications ensures the best possible performance of your engines.
SLEEVE NUT - 5582031453 suitable for MTU engines
Precise Product: Sleeve Nut for ApplicationsThe sleeve nut with the comparison number 5582031453 represents an essential OEM spare part that is equipped for the smooth operation of engines. This product impresses with a precise design, as it was specifically developed for engines that are suitable for MTU engines of series 331. You benefit from high reliability and functionality, which are crucial for the demanding conditions in marine and stationary use.Important Components for Series 331Weighing 0.327 kg, this sleeve nut is lightweight and adaptable. It fulfills its purpose by ensuring that the MTU engines, particularly the type 12V331TC92, operate without disruptions. In addition, the selection of the right materials ensures a long service life for the product, making it an important component in the entire engine system.
NUT - 5569900151 suitable for MTU engines
OEM Spare Part: Nut suitable for MTU enginesDiscover our product, the nut that is suitable for MTU engines. With the comparison number 5569900151, this OEM spare part offers an outstanding fit for the series 331 and the engine type 12V331TC92. Trust in the excellent materials and durability that you expect from an OEM spare part.Functionality and performance for enginesThis component is crucial for the reliable operation of engines. By using the spare part, you ensure that your motorized systems operate efficiently. The quality of our nuts makes them the ideal choice to ensure the long-term productivity of machines.
UNION NUT - 5561750272 suitable for MTU engines
Union Nut: Comparison Number 5561750272 in FocusDiscover the union nut with comparison number 5561750272, an indispensable OEM replacement part for your engines. This product is characterized by the highest precision and belongs to the group of nuts. It is compatible with MTU engines of the series 331 and specifically designed for the engine type 12V331TC92 to provide long-term reliability.Excellent Quality for the IndustryAt MOPA Motorparts, we stand for quality and reliability. The union nut with comparison number 5561750272 undergoes strict internal controls to ensure that it meets the high standards of MTU. This OEM replacement part offers both safety and performance.
NUT - 5560720172 suitable for MTU engines
MTU Nut - OEM Replacement Part Suitable for EnginesDiscover the MTU Nut with the comparison number 5560720172, an essential OEM replacement part specifically designed to ensure optimal performance in MTU engines. This nut belongs to the article group "Nuts" and is suitable for the series 331 as well as the engine type 12V331TC92. By using high-quality components, you ensure reliable use in the operation of your engines.
HEXAGON NUT - 5559971516 suitable for MTU engines
HEXAGON NUT with the comparison number 5559971516 suitable for MTU engines
HEXAGON NUT - 5559970416 suitable for MTU engines
Hexagon nut with comparison number 5559970416 Discover the hexagon nut with comparison number 5559970416, a product designed to ensure optimal performance of your engines. These OEM replacement parts are specifically designed for applications in demanding environments and provide excellence in terms of quality and durability. With its handy weight of only 0.004 kg, the hexagon nut is both easy to handle and strong in operation.
UNION NUT - 5559900854 suitable for MTU engines
Essential Union Nut for High-Performance EnginesDiscover the top-quality Union nut (comparison number: 5559900854), which is considered an essential product for your engine requirements. With its special design, it offers optimal performance and durability – perfect for use in marine and stationary applications. This OEM spare part provides the reliability you expect from original equipment quality.Suitable OEM Spare Part for MTU EnginesThe Union nut is suitable for MTU engines, particularly suitable for the MTU series 331 and the engine types 12V331TC92. As a user, you understand the importance of choosing robust products that reliably perform their function. Rely on the precision and qualities of this OEM spare part for your specialized applications.
UNION NUT - 5559900454 suitable for MTU engines
Union Nut for Excellent Engine PerformanceDiscover the Union nut (reference number: 5559900454), a top-quality OEM replacement part that meets your requirements for quality and reliability. This Union nut is suitable for MTU engines and is specifically designed to the highest standards that comply with OEM guidelines.Suitable for MTU Engines 331Our Union nut is perfect for the series 331, making it compatible with the engine type 12V331TC92. Trust in our experience, which ensures that this product provides excellent performance and longevity, leading to efficient operation of your engines.
COLLAR NUT - 5559900351 suitable for MTU engines
Discover the Collar Nut 5559900351The collar nut with the comparison number 5559900351 is an essential OEM replacement part that meets the highest standards of quality and precision. This product is suitable for MTU engines and significantly contributes to the performance and functionality of your applications. By using this collar nut, you optimize the functionality of your engine and benefit from reliable performance.
NUT - 5559900151 suitable for MTU engines
Custom Nut for High DemandsDiscover our product, the nut with the comparison number 5559900151, suitable for MTU engines. This OEM replacement part belongs to the article group nuts and is specifically designed for the series 331. It ensures that your engines run reliably and efficiently.Securing Reliability for MTU EnginesOur nut is an essential OEM replacement part, suitable for the MTU engine types 12V331TC92. It is made from high-quality materials and ensures that all connections in your MTU engine are robust and stable. Utilize the performance that this specially crafted product offers.
NUT - 5559900051 suitable for MTU engines
Optimal Quality: Nut Suitable for MTU EnginesDiscover the nut with the comparison number 5559900051, an OEM spare part specifically designed for the demands of engines. This nut comes with a perfect fit, offering the highest performance for your drive systems. It is suitable for the MTU series 331 as well as the engine type 12V331TC92, ensuring long-lasting use.User-Friendly Design for Marine EnginesBy using top-quality OEM spare parts, such as the nut with the comparison number 5559900051, you ensure the smooth operation of your engines. Suitable for MTU engines, this product ensures that your machines operate in top form. Enjoy the benefits of a component in the category nuts and benefit from excellent quality.
NUT - 5551740072 suitable for MTU engines
Quality of the OEM Replacement Part with Comparison Number 5551740072Discover the OEM replacement part with the comparison number 5551740072, an essential Nut that can be easily used in special engines. This product is designed to provide you with a reliable solution for your machinery, supporting the highest operational safety.
NUT - 5550610172 suitable for MTU engines
High-Quality Product: Nut Suitable for MTU EnginesDiscover our Nut with the comparison number 5550610172, an essential component for your engines. This replacement part offers reliability and suitability specifically for machines and represents a valuable addition for any professional use.Perfect Fit with Comparison Number 5550610172The Nut is suitable for MTU and is particularly designed for the series 331. This product optimizes your engines and contributes to efficiency in the stationary operation of MTU engines by seamlessly integrating into existing systems.
NUT - 5541810072 suitable for MTU engines
First-Class Nut Compatible with MTU EnginesExperience our excellent product, the nut with the comparison number 5541810072. This first-class nut is essential for the proper functioning of your engines and meets the high demands in marine as well as stationary applications. Weighing 0.271 kg, this OEM replacement part is the perfect addition to your drive.Suitable for MTU Engines of Series 331The nut is designed for MTU engines of series 331 and showcases the quality you expect from OEM replacement parts. With its precise fit, you can be confident that this product meets your expectations in terms of performance and longevity. Ideal for the engine type 12V331TC92, the application of this nut contributes to the efficiency and durability of your engine.
NUT - 5532000072 suitable for MTU engines
Excellent Quality: Comparison Number 5532000072 NutThe nut with the comparison number 5532000072 offers an excellent opportunity for your applications. This spare part is specifically suitable for the MTU engines of the series 331 and the engine type 12V331TC92. With this nut, you ensure the efficiency and longevity of your engines.Robust Features for Reliable UseOur spare parts are characterized by robust materials designed for the demands of maritime and stationary applications. This nut ensures that your MTU engines operate reliably and maintain optimal performance. Rely on proven quality and precise fit!
Function and advantages
Screw nuts work in combination with bolts or studs to create strong, threaded connections. In engine systems, a proper engine nut or motor nut must withstand dynamic forces and temperature-related expansion. Key benefits include:
- Secure locking of mechanical components under stress
- Resistance to loosening under vibration
- Easy assembly and disassembly for maintenance
In high-precision systems, mechanical nuts often feature locking mechanisms, flange bases or specialized coatings to enhance grip and corrosion resistance.
Applications and types
Engine nuts are used to fasten cylinder heads, manifolds, brackets and rotating assemblies. Motor nuts are common in alternators, starters, pumps and other auxiliary components. Depending on the application, mechanic nuts can be hex nuts, locknuts, self-locking nuts or high-temperature nuts.
For industrial and marine use, mechanical nuts are often made of stainless steel or alloyed materials to withstand corrosion, vibration and thermal cycles. Our range includes all standard types and sizes suitable for MTU, MAN, Volvo Penta, Deutz and MWM engines.
Availability and sourcing
We stock a wide selection of screw nuts and related fasteners for engines, industrial equipment and marine applications. As experienced screws and nuts suppliers, we provide OEM-quality with fast delivery, technical support and high availability – ideal for overhauls, repairs or production sourcing.
FAQ
What are screw nuts used for in engines?
Screw nuts in engines are used to secure critical components such as cylinder heads, exhaust systems, brackets and rotating parts. They must withstand heat, vibration and mechanical stress without loosening.
What is the difference between mechanical nuts and mechanic nuts?
“Mechanical nuts” refers to all technical fasteners used in machines, while “mechanic nuts” is a more informal term often used in workshop contexts. Both describe the same parts but are used in different settings.
Where can I buy engine nuts and motor nuts?
Engine nuts and motor nuts are available from specialized screws and nuts suppliers like us. We offer a wide range of standard and special fasteners for diesel and gas engines, with OEM compatibility and fast shipping.