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 - 8701550072 suitable for MTU engines
Annular nut compatible with MTU enginesDiscover the annular nut offered under the comparison number 8701550072. This OEM replacement part is compatible with MTU engines and provides a precise fit that supports reliable performance. Due to its structural stability, the annular nut is perfectly suited for use in marine and stationary applications.Quality through premium OEM replacement partsOur annular nut represents a premium OEM replacement part that meets the high requirements set by manufacturers. At MOPA Motorparts, we focus on solutions specifically developed for the needs of engines. Choose our product for your projects and benefit from the longevity that OEM replacement parts provide.
SLEEVE NUT - 8701420072 suitable for MTU engines
Precise Information on Sleeve NutDiscover our product, the sleeve nut with the comparison number 8701420072, which has been specifically designed to perfectly match your engine. This essential OEM replacement part is of vital significance for the optimal functionality of your engines and meets strict quality requirements.Suitable for MTU EnginesThanks to its design, our sleeve nut is precisely suitable for MTU engines, including engine type 20V538TB92 and series 538. Weighing just 0.008 kg, this sleeve nut combines stability and efficiency while simultaneously meeting lightweight requirements. Whether in maritime or stationary applications – you can rely on our sleeve nut.
HEXAGON NUT - 8699900350 suitable for MTU engines
Precise Replacement Part Suitable for MTU EnginesDiscover the hexagon nut with the comparison number 8699900350, an OEM replacement part specifically designed to work seamlessly with engines suitable for the manufacturer MTU. This product meets the highest standards in terms of quality and performance to ensure optimal operation.Unique Features of OEM Replacement PartsOur hexagon nut is suitable for MTU engines and stands out due to its specific manufacturing. Unlike aftermarket products, our OEM replacement parts are characterized by their exact fit and durable performance, making them ideal for mission-critical applications in the maritime sector.
NUT - 8699900131 suitable for MTU engines
Qualitative Materie für Motoren Discover our Nut with the comparison number 8699900131, which offers top-notch quality as an OEM replacement part. This Nut is suitable for MTU engines and belongs to the article group "Nuts". With this OEM solution, you ensure the efficiency and reliability of your engines.Ersatzteile für MTU Motoren This product, suitable for MTU, is ideal for use in diesel and gas engines. Our offer includes over 1 million replacement parts to help you maximize the lifespan of your machines.
NUT - 8699900121 suitable for MTU engines
Ideal Solutions for Engines: Nut with Comparison Number 8699900121 Discover our Nut, suitable for numerous applications, with the comparison number 8699900121. Our parts meet the highest manufacturer specifications and offer long durability. This product is exactly what you need for your requirements.Efficient Performance in MTU Engines This product is suitable for MTU engines and ensures reliable fastening. In critical applications, such as in marine and stationary sectors, it stands for maximum efficiency and robust functionality.
NUT - 8699900119 suitable for MTU engines
Quality Product with Comparison Number 8699900119Are you looking for a reliable Nut? The Nut with the comparison number 8699900119 is the ideal solution for your requirements. This OEM spare part meets all necessary specifications and ensures an optimal fit.Specifically Suitable for MTU EnginesThis spare part is specifically developed for MTU engines. The comparison number 8699900119 ensures that you won’t have to make any compromises in your selection. Trust in consistent quality that we draw from over 25 years of experience in the distribution of OEM spare parts.
NUT - 8699900118 suitable for MTU engines
Excellent Nut for Marine Applications Discover the nut with the comparison number 8699900118, an essential product suitable for MTU engines of the series 331. This OEM spare part has been designed to seamlessly meet the requirements of the engine type 12V331TC92, thus providing excellent performance.OEM Spare Parts for Maximum Efficiency Our family-owned business in its second generation exclusively offers OEM spare parts that are manufactured to the highest quality standards. Rely on this quality standard to efficiently maintain your engines and extend their lifespan.
COLLAR NUT - 8699900106 suitable for MTU engines
Precise Collar Nut for Retained EnginesDiscover the collar nut with the comparison number 8699900106, an essential component specifically designed for MTU engines. This OEM replacement part integrates seamlessly into various applications. The collar nut is of excellent quality and optimizes the performance of your engines effectively.
COLLAR NUT - 8699900105 suitable for MTU engines
Reliable Collar Nut for Demanding ApplicationsDiscover the collar nut (comparison number: 8699900105), specifically designed to provide the ideal solution for MTU engines, particularly for the series 331 and engine type 12V331TC92. This solid collar nut ensures excellent fit and robustness in your drive system.Versatile Product for High DemandsThis spare part, designed as an OEM spare part, features excellent material properties that withstand the requirements even under extreme conditions. With the comparison number 8699900105, you can ensure that you receive an optimal and durable product that fits perfectly into your existing plant technology.
COLLAR NUT - 8699900098 suitable for MTU engines
Essential Product: Collar Nut – Comparison Number 8699900098Discover the reliable product, the collar nut with the comparison number 8699900098. This component is an essential spare part designed specifically for use in various applications. The collar nut features excellent workmanship and ensures that your systems are safer and more efficient.Suitable for MTU EnginesThe collar nut is suitable for MTU engines, particularly for the series 2000 and the engine type 16V2000M90. The precise dimensions allow for optimal integration and easy installation. With this collar nut, you can ensure that your engines perform at their fullest potential.
COLLAR NUT - 8699900097 suitable for MTU engines
Collar Nut – Your Solution for MTU EnginesDiscover our collar nut, marked with the comparison number 8699900097. This OEM spare part ensures excellent quality and fits perfectly with engine types that are suitable for continuous operation. Our collar nut belongs to the article group "nuts" and plays a crucial role in the configuration of your MTU engines.
NUT - 8699900096 suitable for MTU engines
Precision Product with Comparison Number 8699900096Discover our product, the Nut with the comparison number 8699900096. This OEM spare part is essential for the optimal performance of engines. Thanks to the high quality, it ensures that your applications run smoothly and prevents unwanted failures.
COLLAR NUT - 8699900094 suitable for MTU engines
Professional OEM Replacement Part for Numerous Applications Discover the collar nut, marked with the comparison number 8699900094. This essential component is suitable for the 331 series from the renowned manufacturer MTU and offers maximum safety and efficiency in use. With its robust construction, this collar nut ensures a reliable connection in your applications.Quality of OEM Replacement Parts at the Forefront Our products are static innovation solutions – the collar nut is an OEM replacement part that meets specific requirements. Unlike aftermarket options, which often compromise on processing quality, our parts are suitable for MTU engines. Rely on the best quality to optimize the performance of your engines.
COLLAR NUT - 8699900093 suitable for MTU engines
Precise OEM Replacement Part: Collar NutDiscover our collar nut with the comparison number 8699900093, an essential product for your engine applications. This OEM replacement part, made from the best materials, meets the demands for reliability and durability that you expect from quality products. The collar nut is indispensable for use in various situations where precision is required.Suitable for MTU Engines and SeriesThis replacement part is suitable for MTU engines, particularly the series 331 and the engine type 12V331TC92. The design of the collar nut has been perfectly coordinated to ensure it harmonizes with specific engine components. Rely on tight tolerances and excellent fit, which are essential for operation.
LOCKING NUT - 8699900079 suitable for MTU engines
Secure Locking Nut Suitable for MTU EnginesDiscover our locking nut (comparison number: 8699900079), which is tailored for a wide range of applications. This OEM spare part offers an excellent fit, essential for the safety and longevity of your machinery. The special design is particularly suitable for engines subjected to intense demands.Suitable for MTU Series 331Our locking nut is suitable for the MTU Series 331. This key component is designed to provide lasting performance and reliability in demanding applications. The OEM spare part (comparison number: 8699900079) is specifically engineered to ensure that the 12V331TC92 can be operated efficiently.
UNION NUT - 8699900076 suitable for MTU engines
Efficient Union Nut for High-Performance EnginesDiscover the Union nut, a quality OEM spare part suitable for MTU engines. With the comparison number 8699900076, this product impresses with precise fit and is specifically designed to meet the demands of challenging applications of diesel and gas engines. Rely on our expertise and quality.Reliability through OEM Spare PartsThis Union nut is an ideal component for your MTU engines and ensures their consistent performance. Our OEM spare parts are known for their durability and ensure that your engines operate optimally at all times thanks to reliable technology.
NUT - 8699900066 suitable for MTU engines
Precise Nut with Comparison Number 8699900066Our Nut with the comparison number 8699900066 is an indispensable part designed for the highest demands in the industry. The renowned manufacturer suitable for MTU has developed excellent engines with the 331 series, and our Nut is perfectly suited for the 12V331TC92 engines to maximize their performance.
HEXAGON NUT - 8699900050 suitable for MTU engines
Reliable Hexagon Nut for Efficient EnginesDiscover our hexagon nut (reference number: 8699900050), your first choice for OEM replacement parts. This product offers maximum functionality and is specifically designed for engines that must meet strict requirements. The reference number 8699900050 identifies this essential component.Optimal Fit for MTU EnginesThe hexagon nut is suitable for MTU engines and ensures reliable application efficiency. As an OEM replacement part, it meets the highest standards in engine technology and actively contributes to the performance of your drive.
NUT - 8699900044 suitable for MTU engines
Precise Nut in DetailDiscover the Nut with the comparison number 8699900044, perfectly tailored to your needs. This OEM spare part impresses with the highest quality and is suitable for MTU engines. The exact fit ensures that your systems operate effectively and that the operation runs smoothly.
NUT - 8699900040 suitable for MTU engines
Product Description: Comparison Number 8699900040 Discover the product with the comparison number 8699900040, a nut specifically designed for use in robust engines. With our OEM spare parts, we support the flawless function of your engines. This nut ensures excellent connection and stability without compromising on quality.
HEXAGON NUT - 8699900036 suitable for MTU engines
Exquisite Hexagon Nut for Reliable EnginesOur Hexagon nut (comparison number: 8699900036) is an excellent OEM replacement part specifically designed to support the functionality of your compatible MTU engines. This replacement part offers the highest precision and reliability and is an essential component of any maintenance or repair.
HEXAGON NUT - 8699900035 suitable for MTU engines
Hexagon nut with comparison number 8699900035 Discover our Hexagon nut with the comparison number 8699900035, specially designed for MTU engines. This OEM spare part belongs to the group of Nuts and provides a reliable connection for your engines.Quality of OEM spare parts As OEM spare parts, we offer you the highest quality you need for your applications. Our Hexagon nut is suitable for MTU engines and ensures straightforward installation. Trust in the accuracy and performance that are essential for your operation.
NUT - 8699900002 suitable for MTU engines
Precise Nut with Comparison Number 8699900002Discover our nut with the comparison number 8699900002. This OEM spare part is durable and meets the requirements of MTU engines. Let the excellent fit and robustness convince you.
NUT - 8692530094 suitable for MTU engines
Precise Information about the Nut with Comparison Number 8692530094Discover the nut with comparison number 8692530094, an essential product for various applications in marine and stationary engines. This robust nut is suitable for MTU engines and belongs to the category of nuts. Manufactured as an OEM replacement part, it offers the best quality for your engine projects. Weighing 5.6 kg, this component meets all durability requirements.Efficient Product Integration for MTU EnginesThe comparison number 8692530094 makes this OEM replacement part specifically designed for MTU engines. It ensures perfect integration into existing systems, allowing for long-term and reliable use. Rely on top-notch quality to keep your engines running efficiently.
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.