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Engine washer – sealing and load distribution for engines

An engine washer is a small yet critical component used in engine assembly to distribute pressure, prevent loosening, and ensure tight seals between fastened surfaces. Whether used under bolts, nuts or screws, the right engine washer supports structural integrity and protects sensitive engine parts. In both marine and industrial engines, high-quality engine washers are essential for reliability and long-term performance.

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WASHER - 51907010064 suitable for MAN D-engines

WASHER - 51907010064 suitable for MAN D-engines

Washer with Comparison Number 51907010064Discover the washer with the comparison number 51907010064, an essential spare part that is ideally suited for use in MAN D engines. This washer offers efficiency and durability that support your engines, making it ideal for marine and stationary mobility applications. Weighing only 0.035 kg, this product makes a valuable contribution to the interlocking of components.Efficiency Through Superior FitThe comparison number 51907010064 represents quality and compatibility. The spare part is suitable for MAN D engines and ensures that your machines operate smoothly. Using our products helps reduce maintenance costs while maintaining performance.

PLAIN WASHER - 51907010042 suitable for MAN D-engines

PLAIN WASHER - 51907010042 suitable for MAN D-engines

Optimal performance with OEM spare parts Discover the OEM spare part with the comparison number 51907010042, which plays an important role in the article group "Washers". This product is specifically designed for MAN D engines and offers you excellent quality to ensure the smooth operation of your machines. With a low weight of only 0.002 kg, this spare part is easy to install and integrates perfectly into existing systems.

PLAIN WASHER - 51907010041 suitable for MAN D-engines

PLAIN WASHER - 51907010041 suitable for MAN D-engines

Precise Replacement Part: Comparison Number 51907010041 Discover the direct product with the comparison number 51907010041. This plain washer is an essential component for engines and belongs to the article group of washers. The plain washer offers ideal functionality and adaptability in a variety of applications, making it an excellent replacement part that provides you with good functionality.

WASHER 11X22X0,22-ST12-O3 - 51907010020 suitable for MAN D-engines

WASHER 11X22X0,22-ST12-O3 - 51907010020 suitable for MAN D-engines

Precise Washer for Demanding ApplicationsDiscover our product, the Washer 11x22x0,22-st12-o3, with the comparison number 51907010020, suitable for MAN D engines. With precise dimensions, this OEM spare part is ideal as an addition in various applications. Weighing only 0.001 kg, the washer offers efficiency and reliable performance.OEM Spare Parts for Individual NeedsThis product is a great example of our diverse OEM spare parts, which are precisely manufactured to meet the requirements of diesel and gas engines. It supports the optimal performance of your devices, contributing to smooth operations.

TOOTH LOCK WASHER - 51542100053 suitable for MAN D-engines

TOOTH LOCK WASHER - 51542100053 suitable for MAN D-engines

Tooth lock washer compatible with MAN D enginesDiscover our tooth lock washer with the comparison number 51542100053, a top-quality OEM spare part that is compatible with MAN D engines. Our product ensures that engine-optimized applications can be reliably executed. With a lightweight of only 0.09 kg, the tooth lock washer offers an ideal combination of robustness and efficiency, perfect for marine and stationary applications.

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WASHER 11X50X5-9SMNPB28K - 51385130001 suitable for MAN D-engines

WASHER 11X50X5-9SMNPB28K - 51385130001 suitable for MAN D-engines

Effective OEM Replacement Part: Washer 11x50x5-9smnpb28kDiscover the OEM replacement part that is essential for efficient engine performance – the Washer 11x50x5-9smnpb28k. This component is identified by the comparison number 51385130001 and serves to optimize operational capability. Rely on high-quality products to support the performance of your systems.Suitable for MAN D EnginesEnjoy the advantages of a product that is suitable for MAN D engines. With the comparison number 51385130001, you ensure seamless functionality. The Washer 11x50x5-9smnpb28k is ideally suited to meet the demands of professional applications.

Sale price: €42.06Regular price:€46.74(10% saved)
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SPACER RING - 51301200095 suitable for MAN D-engines

SPACER RING - 51301200095 suitable for MAN D-engines

Optimal Solutions for Replacement PartsDiscover our valuable product, the spacer ring with the comparison number 51301200095, which is specifically tailored to your requirements. This spacer ring belongs to the group of OEM replacement parts and ensures that you receive the best performance for suitable for MAN D engines. Trust in our over 25 years of experience, particularly in the field of replacement parts for engines.Suitable for Highest Operational DemandsThe spacer ring is suitable for MAN D engines and provides a perfect fit and functionality. With this selection of OEM replacement parts, you benefit from the top-notch quality that is essential in high-performance engines. It is indispensable for companies that focus on minimizing downtime.

Sale price: €959.40Regular price:€1,066.00(10% saved)
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SPACER RING - 51301200088 suitable for MAN D-engines

SPACER RING - 51301200088 suitable for MAN D-engines

Discover the Optimal Spacer RingOur spacer ring with the comparison number 51301200088 is an essential product for your engines. As a powerful OEM replacement part, the spacer ring offers reliability that is necessary for the most demanding applications in the machinery industry. Weighing 16.3 kg, this component is ideally designed to support the performance of your equipment.Suitable for MAN D EnginesThis spacer ring is specifically designed for MAN D engines and ensures convincing results. The careful construction and the use of OEM replacement parts allow for seamless installation and outstanding performance. Rely on our top-quality products that meet your expectations for quality and durability.

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SPACER RING - 51301200084 suitable for MAN D-engines

SPACER RING - 51301200084 suitable for MAN D-engines

Precise Performance with Comparison Number 51301200084Discover the spacer ring replacement part with comparison number 51301200084. This OEM replacement part has been developed by leading manufacturers and offers the high precision you expect from a product of this class. The spacer ring is essential for the flawless operation of your engines, making it the ideal solution for all maintenance needs.Perfectly Suitable for MAN D EnginesThe spacer ring is suitable for MAN D engines and, with its weight of 7.1 kg, is characterized by stability and load-bearing capacity. Thanks to the careful manufacturing, this OEM replacement part provides an excellent fit that allows for smooth integration into your existing engine systems. Rely on the quality that meets the demands in various applications.

Sale price: €2,906.98Regular price:€3,229.98(10% saved)
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SPACER RING - 51301200082 suitable for MAN D-engines

SPACER RING - 51301200082 suitable for MAN D-engines

Effective Spare Part: Spacer Ring with Comparison Number 51301200082Discover the spacer ring with the comparison number 51301200082, which delivers top-tier performance for engines, suitable for MAN D. Weighing 16.8 kg, this OEM spare part ensures a precise fit and withstands the high demands in your marine or stationary engine application. The spacer ring belongs to the category of washers and assures robust quality.Strong Performance: Features of the OEM Spare PartThe impressive quality of this product, which meets OEM standards, is a key feature of this retrofit component. The spacer ring ensures seamless integration and maximizes the efficiency of your engines. With this spare part, you benefit from a long service life and optimal performance.

Sale price: €2,945.36Regular price:€3,272.62(10% saved)
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SPACER RING - 51301200055 suitable for MAN D-engines

SPACER RING - 51301200055 suitable for MAN D-engines

Reliable Spacer Ring Suitable for MAN D Engines Discover our spacer ring with the comparison number 51301200055, specifically designed for MAN D engines. This important OEM spare part is part of our product group "Washers" and provides the stability you can expect in professional use. Weighing 16.6 kg, it combines robustness and durability to support the smooth operation of engines.Quality OEM Spare Parts for Your Needs Our spacer ring is an essential component, suitable for MAN D engines. Our products consist of OEM spare parts specifically designed for the specific requirements of diesel or gas engines. Rely on the outstanding performance characteristics in marine and stationary applications.

Sale price: €3,616.94Regular price:€4,018.82(10% saved)
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SPACER RING - 51301200054 suitable for MAN D-engines

SPACER RING - 51301200054 suitable for MAN D-engines

Quality that convinces: Comparison number 51301200054Discover the spacer ring with the comparison number 51301200054, a reliable OEM spare part. This product ensures the highest quality standards and durability, tailored to the strict requirements of the industry. Rely on proven technology for your engines.Powerful, suitable for MAN D enginesThe spacer ring is ideally suited, as it is compatible with MAN D engines used in various maritime and stationary applications. Weighing 6.8 kg, it provides the robustness and stability you need for your operations. Count on a dependable component.

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 - 51271310004 suitable for MAN D-engines

- 51271310004 suitable for MAN D-engines

Precise Quality of Comparison Number 51271310004The camshaft washer with the comparison number 51271310004 is a top-quality OEM spare part. This product impresses with its high precision and is designed to be suitable for MAN D engines. With this spare part, you can rely on optimal engine performance that is specifically tailored to your needs.

Sale price: €128.12Regular price:€142.35(10% saved)
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 - 51271310003 suitable for MAN D-engines

- 51271310003 suitable for MAN D-engines

Efficient Camshaft DiscThe camshaft disc with the comparison number 51271310003 offers reliable performance for engines and ensures optimal operation. This component ensures that your machines always operate more efficiently.

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WASHER - 51271310002 suitable for MAN D-engines

WASHER - 51271310002 suitable for MAN D-engines

Reliable Washer 51271310002Discover the premium washer with the comparison number 51271310002, an essential product for your engines. This OEM spare part is specifically designed to meet the highest quality standards and provides optimal support for engines. Thanks to its precise workmanship, this washer is suitable for MAN D engines and ensures efficiency and durability.

Sale price: €48.26Regular price:€53.63(10% saved)
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INSULATING WASHER - 51268030048 suitable for MAN D-engines

INSULATING WASHER - 51268030048 suitable for MAN D-engines

Insulating washer with reference number 51268030048Discover our insulating washer with the reference number 51268030048, which is an essential component for your applications. This product impresses with exceptional precision and is specifically designed to work for MAN D engines. Weighing only 0.002 kg, the insulating washer is lightweight and allows for easy installation without compromising on performance.OEM spare parts – Quality that convincesOur insulating washer is an OEM spare part produced directly by the manufacturer. While aftermarket products may compromise on quality and fit, our OEM spare parts provide the assurance of precise processing, ideal for MAN D engines. Make your decision consciously and choose quality that meets the highest standards.

Sale price: €35.87Regular price:€39.86(10% saved)
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INSULATING WASHER - 51268030036 suitable for MAN D-engines

INSULATING WASHER - 51268030036 suitable for MAN D-engines

Efficient Insulating Washer with Comparison Number 51268030036Discover the insulating washer with the comparison number 51268030036, which is specifically designed to fit MAN D engines. This powerful solution belongs to the category of washers and is essential for the optimal functionality of your diesel or gas engine. Lightweight at only 0.001 kg, this product is ideal for applications in marine and stationary fields as well as in locomotives.Maximum Efficiency for MAN D EnginesThis OEM replacement part significantly contributes to the efficiency of MAN D engines. Rely on the tested quality of Mopa Motorparts when it comes to replacement parts. Our industry experience ensures you receive powerful OEM replacement parts that are designed for precision and comprehensive performance.

Sale price: €107.62Regular price:€119.57(10% saved)
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INSULATING WASHER - 51262330001 suitable for MAN D-engines

INSULATING WASHER - 51262330001 suitable for MAN D-engines

INSULATING WASHER with the comparison number 51262330001 suitable for MAN D-engines

Sale price: €2.39Regular price:€2.65(10% saved)
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LOCK WASHER - 51262186008 suitable for MAN D-engines

LOCK WASHER - 51262186008 suitable for MAN D-engines

Reliable Lock Washer for Your Maintenance NeedsDiscover the reliable product, the lock washer with comparison number 51262186008, compatible with MAN D. This premium OEM spare part from the category washers offers you the highest quality and precision for your engines. Each component underwent thorough internal inspections to meet the requirements in marine and stationary applications, as well as in locomotives.Optimal Performance for MAN D EnginesWith our lock washer, you not only secure an OEM spare part but also contribute to the longevity and efficiency of your MAN D engines. The careful selection of materials and quality assurance are paramount to ensure optimal performance.

Sale price: €6.00Regular price:€6.67(10% saved)
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LOCK WASHER - 51262186002 suitable for MAN D-engines

LOCK WASHER - 51262186002 suitable for MAN D-engines

Product Information for Comparison Number 51262186002Discover the spare part with the comparison number 51262186002, a lock washer that is particularly relevant in the field of MAN D engines. This product provides a secure connection in demanding operational environments and offers you the necessary reliability.Efficiency through OEM Spare PartsOur lock washer is an excellent example of OEM spare parts manufactured to the highest standards. Suitable for MAN D engines, this product supports optimal performance and readiness. Each component meets the manufacturer's specifications and enhances the efficiency of all engines.

Sale price: €17.18Regular price:€19.08(10% saved)
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INSULATING WASHER - 51261340017 suitable for MAN D-engines

INSULATING WASHER - 51261340017 suitable for MAN D-engines

Insulating Washer with Comparison Number 51261340017Discover the insulating washer with a comparison number of 51261340017, a quality-controlled OEM spare part designed for MAN D engines. The washer belongs to the category of washers and offers a precise fit along with a high performance standard.

Sale price: €16.36Regular price:€18.17(10% saved)
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INSULATING WASHER - 51261340016 suitable for MAN D-engines

INSULATING WASHER - 51261340016 suitable for MAN D-engines

Insulating washer with comparison number 51261340016 Discover the insulating washer with comparison number 51261340016, which can be perfectly integrated into your systems. Weighing only 0.001 kg, this product is suitable for reliable engine solutions in specialized applications. The specific design of the insulating washer allows for optimal use in conjunction with MAN D engines.Suitable for MAN D engines and qualityThis insulating washer is specially developed to meet the requirements of manufacturers like MAN D. The OEM replacement part ensures a precise fit, allowing for a trouble-free integration into engines. Compared to conventional aftermarket solutions, this product offers the advantages of OEM replacement parts that have undergone strict testing by the manufacturers.

Sale price: €11.70Regular price:€13.00(10% saved)
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INSULATING WASHER - 51261340010 suitable for MAN D-engines

INSULATING WASHER - 51261340010 suitable for MAN D-engines

Exquisite Product: Insulating Washer Suitable for MAN D2862Discover the insulating washer with the comparison number 51261340010 – an essential OEM spare part specifically designed for the reliable MAN D engines, particularly the D2862 series. This product is characterized by precise processing and functionality, ensuring the smooth operation of your engines. The insulating washer thus plays a central role in the seamless operation in various applications.Technical Data: A Flawless SolutionThe dimensions of our product, the insulating washer, are 2.6 cm in length and width, with a height of only 0.3 cm. These compact measurements ensure a secure and precise installation in the MAN D engines. With a weight of 0.002 kg, the insulating washer is not only lightweight but also optimally designed for stress-free handling. If you are looking for a robust component that is specifically suitable for optimal performance, this insulating washer is the ideal choice.

Sale price: €6.58Regular price:€7.31(10% saved)
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INSULATING WASHER - 51261340008 suitable for MAN D-engines

INSULATING WASHER - 51261340008 suitable for MAN D-engines

Efficient Insulating Washer for Your NeedsOur insulating washer with the comparison number 51261340008 is an essential product for anyone who demands the highest standards for their engines. This insulating washer is perfectly suitable for use with MAN D engines and significantly contributes to the efficiency of your system. With a compact size of 2.6 cm x 2.6 cm x 0.4 cm and a weight of just 0.002 kg, it not only ensures easy handling but also provides effective insulation.Suitable for MAN D Engines – Ideal for Various ApplicationsThis OEM replacement part ensures the usual reliability. The insulating washer is specifically designed for MAN D engines to enable seamless function in various applications. Thanks to the high surface quality and precise manufacturing, you can expect maximum performance with this insulating washer.

Sale price: €10.64Regular price:€11.82(10% saved)
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Function and advantages

Engine washers serve several key functions in engine construction and repair. They are used to:

  • Distribute clamping force evenly across surfaces
  • Protect soft materials or coatings from fastener damage
  • Improve sealing and prevent loosening due to vibration

In dynamic applications, engine washers also help compensate for thermal expansion, surface irregularities and pressure shifts within the engine block or housing.

Types and applications

Engine washers are used across all major engine components – from cylinder heads and manifolds to oil pans, pumps and brackets. Common types include:

  • Flat washers for load distribution
  • Spring washers for vibration resistance
  • Sealing washers (e.g. copper or rubberized) for fluid-tight joints

Each engine washer must be matched to the specific fastener size, torque requirement and environmental condition. In marine and high-vibration engines, corrosion-resistant and locking washer types are preferred.

Materials and availability

Engine washers are typically made from hardened steel, stainless steel, brass, aluminum or copper – depending on application and environment. Coated variants help prevent corrosion and galling. We offer a wide range of engine washers for MTU, MAN, Volvo Penta, Deutz and MWM engines – in OEM-compatible quality and with fast availability.

Engine washer for industrial and marine engines – suitable for MTU, Deutz, MAN, Volvo Penta and MWM – replacement parts

FAQ

What is an engine washer used for?
An engine washer is placed under a nut, bolt or screw to distribute pressure, improve grip and prevent damage to surrounding surfaces. It also helps maintain torque and sealing under heat, pressure and vibration.

Are all engine washers the same?
No. Engine washers vary in size, thickness, material and function. Some are designed for sealing, others for locking or vibration damping. Using the correct washer type is critical for safety and performance.

When should engine washers be replaced?
Engine washers should be replaced during engine overhauls, when fasteners are removed, or when there are signs of wear, corrosion or deformation. Reusing worn washers can lead to leaks or torque loss.

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