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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.

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HEXAGON NUT - 644003603034 suitable for MWM & Deutz engines

HEXAGON NUT - 644003603034 suitable for MWM & Deutz engines

Excellent Hexagon Nut with Comparison Number 644003603034 Discover our Hexagon nut, which is marked with the comparison number 644003603034. This OEM spare part is an essential component that is particularly necessary for efficient maintenance and repairs. Its lightweight construction of only 0.02 kg ensures easy handling and reliable connections that are crucial for functionality.Suitable for MWM & Deutz Engines Our Hexagon nut is an OEM spare part specifically designed to be compatible with MWM & Deutz engines. Whether you are maintaining diesel or gas engines in maritime or stationary applications, this product meets the highest quality standards and keeps your machines in excellent condition.

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NUT - 644003600114 suitable for MWM & Deutz engines

NUT - 644003600114 suitable for MWM & Deutz engines

Robust Nut as OEM Spare PartDiscover the OEM spare part with the comparative number 644003600114, a robust nut specifically designed to meet the highest demands. This product weighs only 0.05 kg and offers uncompromising performance in operation. Due to its quality and fit, it is ideally suited for applications in engine technology.

Sale price: €33.81Regular price:€37.57(10% saved)
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NUT - 644003600104 suitable for MWM & Deutz engines

NUT - 644003600104 suitable for MWM & Deutz engines

Superiority through Quality: Compare Nuts!Discover our product, the nut with the comparison number 644003600104. This part ensures the highest reliability and shows precise specifications for applications in demanding areas. When used in engines, particularly suitable for MWM & Deutz, parts from the original manufacturer are essential for long-term performance.Suitable for MWM & Deutz EnginesThe nut is suitable for MWM & Deutz engines and contributes to the secure connection of components. Weighing only 0.012 kg, this replacement part is a lightweight yet essential element that significantly prevents unexpected failures. Your choice for parts from the manufacturer means trust in continuous performance.

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HEXAGON NUT - 644003600094 suitable for MWM & Deutz engines

HEXAGON NUT - 644003600094 suitable for MWM & Deutz engines

Robust Hexagon Nut with Comparison Number 644003600094Discover the hexagon nut with the comparison number 644003600094, an essential component for your engines. This product belongs to the article group "nuts" and is part of our excellent OEM replacement parts. The hexagon nut allows for a precise and secure connection in all applications that require reliable performance.Suitable for MWM & Deutz EnginesThis outstanding replacement part is compatible and suitable for MWM & Deutz engines. In the design, we focused on creating a connection that meets demanding standards. Thanks to thoughtful planning, your engine is optimally supported, leading to longer operation and less downtime.

Sale price: €58.18Regular price:€64.65(10% saved)
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HEXAGON NUT - 644003600084 suitable for MWM & Deutz engines

HEXAGON NUT - 644003600084 suitable for MWM & Deutz engines

Robust Hexagon nut for Engine RenovationsDiscover the Hexagon nut that provides reliable stability in your projects. With the reference number 644003600084, this product is essential for all maintenance and repairs. The Hexagon nut offers precise specifications, particularly suitable for MWM & Deutz engines.

NUT - 644003600064 suitable for MWM & Deutz engines

NUT - 644003600064 suitable for MWM & Deutz engines

Three Nut suitable for MWM & Deutz engines – Item No. 644003600064Discover our nut, which is an essential part for your engines. With the comparison number 644003600064, it meets the highest quality standards for engines, which are crucial for efficiency and longevity. The nut weighs 0.174 kg and is ideally suited for MWM & Deutz engines, making it the perfect choice for your precision needs.OEM spare parts for optimal performanceOur nut is a top-quality OEM spare part that ensures you can make the most of your machines' performance. Compared to aftermarket solutions, our OEM spare parts meet the strict requirements set by the manufacturers and are based on extensive experience in development.

NUT - 644003600054 suitable for MWM & Deutz engines

NUT - 644003600054 suitable for MWM & Deutz engines

MOPA Spare Parts: The Nut in DetailDiscover the Nut (comparison number: 644003600054), an indispensable OEM spare part from our article group for Nuts, suitable for the top-notch operation of your MWM & Deutz engines. Weighing only 0.198 kg, this product impresses with quality and reliability, without compromising.OEM Solution for Stationary EnginesOur Nut is an OEM spare part that meets the highest standards, ensuring outstanding performance of your engines. Do not choose aftermarket variants that often vary in quality. With the comparison number 644003600054, you benefit from quality that comes directly from the manufacturer.

NUT - 644003600044 suitable for MWM & Deutz engines

NUT - 644003600044 suitable for MWM & Deutz engines

Application Area of Nut 644003600044Discover the advantages of our nut with the comparison number 644003600044, a crucial component for your machines. This product belongs to the group of nuts and is particularly suitable for marine and stationary applications. Weighing only 0.02 kg, this OEM spare part provides a practical solution for various engines.

NUT - 644003600034 suitable for MWM & Deutz engines

NUT - 644003600034 suitable for MWM & Deutz engines

MOPA Nut with Comparison Number 644003600034Discover our outstanding product with the comparison number 644003600034, a nut that has been specially developed for applications in the MWM & Deutz engines sector. This component plays a critical role in supporting the reliability and functionality of your engines. Weighing 0.717 kg, it offers a stable and durable solution for your challenges in marine and stationary use.

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UNION NUT - 628/32/44/05065300 suitable for MWM & Deutz engines

UNION NUT - 628/32/44/05065300 suitable for MWM & Deutz engines

Union Nut with Comparison Number 628/32/44/05065300Discover the union nut with the comparison number 628/32/44/05065300, which is optimally suited to ensure the functionality of your machines. This product is impressive as an OEM replacement part, as it has been developed to fit Deutz engines while adhering to the highest quality standards.Precise Identification of the Comparison NumberThe union nut is not only an essential component for your engines but also weighs only 0.018 kg. Suitable for Deutz, this efficient replacement part ensures that your engines can consistently deliver their performance. Products with the comparison number 628/32/44/05065300 are also associated with testing methods that verify optimal function.

Sale price: €1.12Regular price:€1.25(10% saved)
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UNION NUT - 628/21/10/05066246 suitable for MWM & Deutz engines

UNION NUT - 628/21/10/05066246 suitable for MWM & Deutz engines

Union nut suitable for MWM & Deutz enginesThe union nut with the comparison number 628/21/10/05066246 is an essential OEM spare part specifically designed for engines that are suitable for MWM & Deutz. Without compromising on quality, this product offers the reliability necessary in industrial applications. Thanks to its robust construction, it supports the smooth functionality of MWM & Deutz engines, particularly the engine type 20V1163TB82.Efficient performance and precise fitThe union nut meets all requirements for a durable spare part. Weighing only 0.014 kg and with compact dimensions of 2 cm length, 2 cm width, and 1.8 cm height, this OEM spare part is not only lightweight but also very efficient in its function. Engines that are suitable for this union nut benefit from increased operational reliability, which is of great importance to businesses.

Sale price: €0.57Regular price:€0.64(11% saved)
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HEXAGON NUT - 628/15/7/05038209 suitable for MWM & Deutz engines

HEXAGON NUT - 628/15/7/05038209 suitable for MWM & Deutz engines

Discover Our Hexagon NutDiscover the hexagon nut with the comparison number 628/15/7/05038209 – an important replacement part for your engine requirements. This product meets the highest quality standards and offers you the reliability you can expect from a part in original equipment manufacturer quality. This OEM replacement part can be easily integrated into your machines and ensures a long lifespan.

Sale price: €0.59Regular price:€0.65(9% saved)
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ACORN NUT - 643543610024 suitable for MWM & Deutz engines

ACORN NUT - 643543610024 suitable for MWM & Deutz engines

Excellent Acorn Nut for All MaintenanceDiscover our Acorn nut with the comparison number 643543610024 – an indispensable product for engines, tailored to your needs. The Acorn nut belongs to the group of Nuts and represents a reliable component for your maintenance projects. This OEM spare part impresses with its precise fit, providing optimal hold for your machines.

HEXAGON NUT - 643543600014 suitable for MWM & Deutz engines

HEXAGON NUT - 643543600014 suitable for MWM & Deutz engines

Quality Product: Hexagon Nut 643543600014Discover the hexagon nut, the OEM replacement part with the comparison number 643543600014, which has proven to be an essential product for reliable functionality in engines. This hexagon nut is a significant component, suitable for MWM & Deutz engines, that supports a perfect connection within your machines. It is ideal for use in various applications in the marine and stationary fields, where performance and safety are crucial.Robust and Reliable: Characteristics of the Hexagon NutThe lightweight design of this hexagon nut, weighing only 0.005 kg, ensures that you do not lose any performance when used in various engine applications. With the comparison number 643543600014 and identified as an OEM replacement part, you ensure lasting quality in your MWM & Deutz engines.

NUT - 643503600224 suitable for MWM & Deutz engines

NUT - 643503600224 suitable for MWM & Deutz engines

Robust Nut for Your NeedsDiscover the nut with the comparison number 643503600224, specifically designed for the demands of high-performance engines. This product has been developed to support optimal engine performance and ensures an uninterrupted connection. Through strict controls during manufacturing, you receive a reliable OEM replacement part that offers a high level of fidelity to the original build.

NUT - 643503600164 suitable for MWM & Deutz engines

NUT - 643503600164 suitable for MWM & Deutz engines

Quality That ConvinceDiscover the Nut with the comparison number 643503600164 – an essential product for all engine operators. This Nut is an OEM replacement part that offers you versatility and reliability for your applications. The product is suitable for MWM & Deutz engines and is ideal for diesel and gas engines used in marine and stationary applications.Robust Design for Optimal PerformanceWeighing only 0.15 kg, this product offers remarkable weight without losing durability. This Nut has been specifically designed to support long-lasting performance during the maintenance of your engines. Rely on our OEM replacement parts to always meet your requirements.

HEXAGON NUT - 643503600154 suitable for MWM & Deutz engines

HEXAGON NUT - 643503600154 suitable for MWM & Deutz engines

Hexagon Nut for Various Engine ApplicationsDiscover the hexagon nut with the comparison number 643503600154, an essential product that is suitable for MWM & Deutz engines. Weighing only 0.145 kg, the hexagon nut combines lightness and robustness, making it an optimal solution for various engine applications. Maximize the efficiency of your equipment with this high-quality OEM replacement part.

NUT - 643503600134 suitable for MWM & Deutz engines

NUT - 643503600134 suitable for MWM & Deutz engines

Experience a Versatile NutDiscover our nut (comparison number: 643503600134), which is essential for numerous applications in the engine industry. This OEM replacement part weighs only 0.15 kg and offers an excellent fit. Its reliability makes it ideal for use in marine and stationary applications.Suitable for MWM & Deutz EnginesThis product is specifically designed for MWM & Deutz engines and meets the high standards of the original equipment manufacturers. Using OEM replacement parts ensures that your engine operates at its best and is optimally protected, positively impacting its lifespan.

HEXAGON NUT - 643503600124 suitable for MWM & Deutz engines

HEXAGON NUT - 643503600124 suitable for MWM & Deutz engines

Essential Product: Compare Hexagon NutDiscover the Hexagon nut with the comparison number 643503600124, which offers suitable solutions for both MWM and Deutz engines. This OEM replacement part belongs to the article group of Nuts and has a weight of only 0.001 kg. This Hexagon nut provides excellent performance for applications in marine and stationary use as well as for locomotives.

SLOTTED ROUND NUT - 643503600114 suitable for MWM & Deutz engines

SLOTTED ROUND NUT - 643503600114 suitable for MWM & Deutz engines

Efficient Spare Part: Slotted Round Nut 643503600114 for Your Engine Discover the slotted round nut with the comparison number 643503600114, an indispensable product designed specifically for application in suitable for MWM & Deutz engines. This slotted round nut is part of the article group of nuts and impresses with its precise workmanship. Weighing only 0.25 kg, it ensures practical handling and adapts optimally to your needs.Fit for Easy Use The slotted round nut is suitable for MWM & Deutz and enables efficient operation of your engine. As an OEM spare part, this product meets the stringent standards of the manufacturers and is particularly recommended for use in stationary or maritime applications. The exact fit supports the longevity and performance of your engines.

SLOTTED ROUND NUT - 643503600104 suitable for MWM & Deutz engines

SLOTTED ROUND NUT - 643503600104 suitable for MWM & Deutz engines

Quality Slotted Round Nut for Engine ApplicationsDiscover our slotted round nut with the reference number 643503600104, specifically designed to meet the demands of MWM & Deutz engines. This product belongs to the article group of nuts and weighs 0.36 kg. Its precise construction ensures that the slotted round nut functions optimally and reliably.OEM Replacement Parts for High DemandsOur reference number 643503600104 is a tested OEM replacement part, providing you with the reliability needed for your engines. The slotted round nut is suitable for a variety of applications, particularly in the marine and stationary engine sectors. The high quality of our OEM replacement parts has been a hallmark of our company for many years.

HEXAGON NUT - 643503600094 suitable for MWM & Deutz engines

HEXAGON NUT - 643503600094 suitable for MWM & Deutz engines

Hexagon Nut for Your NeedsDiscover our hexagon nut with the comparison number 643503600094. This product is essential for a variety of applications in engines. Weighing only 0.02 kg, the hexagon nut is suitable for MWM & Deutz engines and impresses with its robust design.Trust in OEM Spare PartsThis hexagon nut is an OEM spare part that strictly follows the manufacturer's specifications. With the comparison number 643503600094, we clearly distinguish ourselves from the competition: aftermarket parts are often of inferior quality and pose risks. OEM spare parts offer advantages in quality and functionality.

NUT - 643503600084 suitable for MWM & Deutz engines

NUT - 643503600084 suitable for MWM & Deutz engines

Reliable Nut with Comparison Number 643503600084Discover our nut with the comparison number 643503600084, an important OEM spare part specifically designed for many industrial applications. Weighing only 0.02 kg, this product impresses with excellent quality and reliable performance.

NUT - 643503600074 suitable for MWM & Deutz engines

NUT - 643503600074 suitable for MWM & Deutz engines

Efficient Solution: Nut with Comparison Number 643503600074The nut with the comparison number 643503600074 is the key to a reliable assembly in your engine area. This OEM spare part, precisely suitable for MWM & Deutz engines, meets all requirements for use in maritime and stationary technology. Weighing a total of 0.97 kg, this component is indispensable in your application and provides significant stability.Reliable Quality: OEM Spare PartsTake the opportunity to rely on OEM spare parts that meet the highest standards. Our nut is suitable for MWM & Deutz and impresses with outstanding durability. The product offers you a precise fit as well as an effective price-performance ratio, ideal for demanding applications.

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.

Screw nuts for industrial and marine engines – engine nut, motor nut, mechanical nuts, mechanic nuts – OEM replacements

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.

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