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:
NUT - 3861017 suitable for Volvo/Volvo Penta engines
Quality and Precision for EnginesDiscover our Nut with the comparison number 3861017, which is an ideal addition for your suitable for Volvo/Volvo Penta engines. This OEM spare part belongs to the group of Nuts and brings outstanding craftsmanship to every application. Our products are manufactured to meet the strict demands of the industry and can be reliably used in a variety of engines.Lightweight for Effective ApplicationsWith a weight of only 0.012 kg, the Nut is an essential OEM spare part that is both lightweight and robust. These components are suitable for various applications in the marine and power generation sectors, as well as in the locomotive industry, and they stand for a long lifespan and excellent performance in critical environments that must withstand often occurring extreme conditions.
NUT - 3860544 suitable for Volvo/Volvo Penta engines
Excellent Quality with Comparison Number 3860544Discover the Nut with the comparison number 3860544, which is vital for the function of your engines. This OEM spare part is suitable for Volvo/Volvo Penta and offers you the precision you expect from OEM. Weighing only 0.001 kg, this product is not only lightweight but also crucial for the reliability of engines in marine and stationary applications.
NUT - 3860538 suitable for Volvo/Volvo Penta engines
Precise Accessories for Your ApplicationsThe Nut with the comparison number 3860538 is the ideal spare part when you are looking for a suitable solution for your mechanized applications. This component is compatible with Volvo/Volvo Penta engines and offers perfect fit to ensure the functionality and efficiency of your engines. Weighing only 0.002 kg, it is not only lightweight but also powerful.Quality for DurabilityOur Nut is made from robust and durable materials that withstand the demanding requirements of the marine industry. This spare part ensures that all components are securely fixed, enhancing the overall performance and lifespan of your engines. When you rely on your applications, the Nut with the comparison number 3860538 is the perfect choice.
NUT - 3859900551 suitable for MTU engines
Exquisite Nut for Your Engine PartsDiscover our special nut with the comparison number 3859900551, which is perfect for MTU engines. This OEM spare part offers top functionality and durability to ensure your systems run smoothly. Our article group "nuts" includes carefully selected production standards that meet all manufacturer requirements.Ideal Solutions Suitable for Your EnginesThe comparison number 3859900551 ensures that this OEM spare part is optimally suited. It is compatible with MTU engines, ensuring the reliability and compatibility you expect. Use our product to achieve the best possible performance from your engines.
NUT - 3859077 suitable for Volvo/Volvo Penta engines
Premium Product – Nut 3859077 for Your NeedsDiscover the nut with the comparison number 3859077, a premium OEM spare part designed perfectly for your requirements. This spare part impresses with its precise workmanship and is particularly robust, meeting the demands of challenging operations.OEM Spare Parts Instead of Aftermarket - Quality Comes at a PriceThis product is designed to fit Volvo/Volvo Penta engines and offers you the assurance of an ideal fit. When maintaining and servicing your engines, you should always rely on the benefits of OEM spare parts and expect high quality and reliability.
NUT - 3857683 suitable for Volvo/Volvo Penta engines
Discover the Nut with comparison number 3857683Discover the OEM spare part, the nut with the comparison number 3857683, specifically manufactured to create a reliable and durable connection suitable for Volvo/Volvo Penta engines. Weighing only 0.007 kg, the product delights not only with its lightness but also with the quality required for marine and stationary applications.Superiority through Original Manufacturer TechnologyBy using OEM spare parts like this unique nut, you benefit from proven accuracy and high safety standards. While aftermarket products often provide vague quality and dimensions, OEM spare parts stand for manufacturer specifications that ensure complete compatibility with your engine.
NUT - 3857679 suitable for Volvo/Volvo Penta engines
Reliable Product for Your EnginesDiscover the Nut with the comparison number 3857679, an essential product specifically designed to be suitable for Volvo/Volvo Penta engines. This precisely manufactured OEM spare part offers optimal fit and functionality. Weighing only 0.004 kg, it is excellent for reliable use.Suitable Solution for Engine PerformanceThe comparison number 3857679 ensures that this Nut is perfectly suitable for your Volvo/Volvo Penta engines. Particularly through the selection of high-quality materials, long-lasting functionality is supported. At MOPA Motorparts, we rely exclusively on OEM spare parts to best support our customers in their applications.
NUT - 3857665 suitable for Volvo/Volvo Penta engines
Quality Product: Nut with Reference Number 3857665The nut with the reference number 3857665 is an essential OEM spare part that is ideally suited for a variety of industrial applications. Weighing only 0.012 kg, this nut provides a reliable connection and meets the highest standards in the industry. It is specifically designed for use in engines where stability and durability are required.Suitable for Volvo/Volvo Penta EnginesThis nut is suitable for Volvo/Volvo Penta engines and ensures a precise fit to maintain efficiency in your machines. If reliability and performance are important to you, the reference number 3857665 is an excellent choice. Our outstanding OEM spare parts are optimally tailored to meet the demands of industrial applications.
NUT - 3857664 suitable for Volvo/Volvo Penta engines
Precise Nut Compatible with Volvo/Volvo PentaDiscover our precise nut with the comparison number 3857664, compatible with Volvo/Volvo Penta engines. This OEM replacement part features excellent manufacturing that meets the highest standards. Weighing only 0.011 kg, this product offers optimal performance and durability, which are important aspects for any professional application.SEO-Optimized OEM Replacement Parts for EnginesAs a provider of OEM replacement parts, we strive to offer our B2B customers the best products possible. This specialized nuts replacement part has been designed for Volvo/Volvo Penta engines and brings reliability and stability. With the comparison number 3857664, you can ensure that you choose the right part for your specific needs.
NUT - 3856930 suitable for Volvo/Volvo Penta engines
Excellent Nut Suitable for Volvo/Volvo Penta EnginesDiscover the precise nut with the comparison number 3856930, specifically designed for Volvo/Volvo Penta engines. This quality-tested product belongs to the category of nuts and ensures a reliable connection that supports the functionality of your engines.OEM Spare Parts for Reliable PerformanceThese OEM spare parts stand out for their highest quality and are suitable for versatile applications. Our nut, which weighs 0.006 kg, ensures that you receive consistent performance and reliability for your engines. Trust our experience to find the right product for your needs.
NUT - 3856614 suitable for Volvo/Volvo Penta engines
Exclusive Nut – Comparison Number 3856614Discover the Nut with the comparison number 3856614, an important OEM spare part, perfectly suitable to support your compatible with Volvo/Volvo Penta engines. This product meets the highest quality standards and ensures that your engines function flawlessly. Weighing only 0.045 kg, the Nut is easy to use and particularly useful in maritime as well as stationary applications.Efficient Solutions for EnginesThis Nut is designed for Volvo/Volvo Penta engines and ensures reliable operation. Using OEM spare parts allows you to acquire products that are specifically developed to withstand challenging environments. With our years of experience and expertise, we provide you with the perfect solutions for your engines.
NUT - 3856385 suitable for Volvo/Volvo Penta engines
Robust Nut with Comparison Number 3856385Discover the Nut with the comparison number 3856385, perfectly suitable for your Volvo/Volvo Penta engines. This OEM spare part is a vital component of your engines. Weighing 0.048 kg, this product demonstrates how even small components are essential for overall performance.Perfect Fit for Volvo/Volvo Penta EnginesThe Nut from the category of Nuts is suitable for the demanding conditions that engines face in marine and stationary applications. With its excellent material quality, it ensures a secure and reliable assembly, which is crucial for the efficiency and longevity of your engines. Rely on this OEM spare part to achieve the correct connection in your engine.
NUT - 3856016 suitable for Volvo/Volvo Penta engines
Excellent Nut: Quality for Your EnginesDiscover our nut with the comparison number 3856016, a top-quality product suitable for Volvo/Volvo Penta engines. This nut from the group "nuts" ensures a reliable connection in your engines. Weighing only 0.01 kg, it combines stability and lightness, making it perfect for demanding applications.OEM Spare Parts: Trust the Flow LinesOur products, including this nut, are custom-made parts manufactured according to the specifications of the manufacturers. With the comparison number 3856016, you can be assured of fit and functionality. Using this nut not only enhances the functionality of your engines but also supports their long-term operation.
NUT - 3854744 suitable for Volvo/Volvo Penta engines
Robust Solution: Nut Comparison Number 3854744Discover the Nut with the comparison number 3854744, a high-quality product designed for optimal performance. This OEM replacement part is suitable for Volvo/Volvo Penta engines and is highly recommended for marine and stationary applications. Our Nut impresses with its precise fit and meets the highest quality standards.
NUT - 3853649 suitable for Volvo/Volvo Penta engines
Excellent Nut for Your Engines Discover our nut with the comparison number 3853649, an essential component suitable for Volvo/Volvo Penta engines. This component belonging to the nuts article group combines functional expertise and precise craftsmanship, making it optimally tailored to specific requirements. Weighing only 0.01 kg, the product features a compact size that allows for easy transport and handling.OEM Spare Parts for Performance and Efficiency This OEM spare part ensures the highest precision and fit, meeting the demands for effectiveness and reliability in your engine operation. Each product comes directly from the manufacturer and offers the assurance you expect in your usage. Rely on the advantages of an OEM spare part to enhance the efficiency of your engines.
NUT - 3853627 suitable for Volvo/Volvo Penta engines
Quality Assurance through Comparison Number 3853627The product with the comparison number 3853627 is a precise nut that is perfectly compatible and thus suitable for Volvo/Volvo Penta engines. This unique product solution meets the high standards of OEM replacement parts and represents an indispensable component for your engine. Weighing only 0.01 kg, it combines lightness with robust functionality.OEM Replacement Parts: Reliability for EnginesThrough the various replacement parts in our product group "nuts," we have a variety of methods to support the smooth maintenance of your engines. Our extensive selection of OEM replacement parts, suitable for manufacturers like Volvo/Volvo Penta, ensures you quality at competitive prices. Each part is developed with the utmost precision to meet the demands of marine and engine technology.
NUT - 3853560026 suitable for MTU engines
Robust Nut suitable for MTU enginesDiscover the Nut with the comparison number 3853560026, which is particularly suitable for MTU engines. This OEM replacement part is characterized by immense durability and precision and is ideal for demanding applications in marine and stationary technology.Efficient OEM replacement parts for enginesOur extensive range includes over 1 million high-quality products, including the comparison number 3853560026. This replacement part is suitable for MTU engines and ensures the highest quality and exact compatibility. Rely on proven standards and explore versatile options.
FLAT-COLLAR NUT - 3853510672 suitable for MTU engines
Robust Flat-collar nut suitable for MTU enginesDiscover the flat-collar nut with the comparison number 3853510672, an essential OEM spare part that supports the performance and safety of your MTU engines. This carefully selected flat-collar nut ensures stability and durability to maintain the efficiency of your marine and stationary engines. Weighing 0.21 kg, it provides the robustness required for the most demanding applications.Reliable OEM spare partsThe flat-collar nut belongs to the product group "Nuts" and is suitable for OEM-specific applications that meet high-quality standards. Rely on over 25 years of experience in supplying spare parts to preserve the functionality of your engines.
NUT - 3853510372 suitable for MTU engines
Premium Nut for Top Performance Discover the custom Nut with the comparison number 3853510372, an essential OEM replacement part that delivers ideal solutions for your requirements. This product ensures a reliable connection and smooth operations in demanding applications.
FLAT-COLLAR NUT - 3853510172 suitable for MTU engines
Premium Quality: Flat-collar nut for Reliable EnginesDiscover our Flat-collar nut, an excellent model with the comparison number 3853510172. This OEM spare part offers you the quality you are looking for. It is optimally suited for your engines that require high performance.Suitable for MTU EnginesThis Flat-collar nut is specially developed to be compatible with MTU engines. The precision of the processing ensures a perfect fit and thus excellent functionality of your machines.
NUT - 3853413 suitable for Volvo/Volvo Penta engines
Precise Replacement Part: Comparison Number 3853413The Nut with the comparison number 3853413 is an excellent OEM replacement part designed specifically for Volvo/Volvo Penta engines. Weighing just 0.007 kg, this product ensures stable functionality in your machine applications. Utilize the reliability of this Nut to optimize the performance of your engines.Superior Quality for Demanding ApplicationsThis Nut belongs to the category of Nuts and is suitable for Volvo/Volvo Penta. As we only sell OEM replacement parts, you benefit from components manufactured to the highest standards. Rely on the precise fit to ensure the performance of your engines.
LOCKING NUT - 3853404 suitable for Volvo/Volvo Penta engines
Promoting the Quality of the Locking NutThe locking nut with the comparison number 3853404 is an essential component for engines in marine and stationary applications. The item lays the foundation for a secure fastening and ensures a stable connection of the components. Weighing 0.01 kg, this OEM spare part not only offers easy installation but also exceptional robustness.
NUT - 3853403 suitable for Volvo/Volvo Penta engines
Premium Nut suitable for Volvo/Volvo Penta enginesDiscover our nut with the comparison number 3853403, an OEM replacement part that has been specifically designed to provide consistent performance. This product is particularly suitable for Volvo/Volvo Penta engines and is characterized by precise manufacturing. Weighing only 0.007 kg, this nut is both lightweight and extremely durable.OEM replacement parts with the highest precision fitOur comparison number 3853403 belongs to an extensive category of OEM replacement parts that are crucial for the smooth operation of engines. You can rely on quality and longevity, as the use of replacement parts suitable for Volvo/Volvo Penta ensures that your engines operate efficiently and maximize their performance.
NUT - 3853329 suitable for Volvo/Volvo Penta engines
Robust Nut Suitable for EnginesDiscover our Nut, designated as an OEM replacement part with the comparison number 3853329. This product is ideally suited as a component that is particularly important for your engine's performance. Weighing only 0.013 kg, this Nut offers optimal conditions for stable connections and above-average durability.Quality Through OEM Replacement PartsOur complete solution consists of OEM replacement parts that are suitable for various engines. We collaborate with renowned manufacturers such as MWM, Mercedes-Benz, Deutz, and others. By using these components, you ensure the functionality of your engine.
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.