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.
SHIM - 81323130017 suitable for MAN D engines
Shim - Product OverviewDiscover our Shim (comparison number: 81323130017), designed for the highest demands. This part impresses with excellent fit, specifically suitable for MAN D engines. Weighing only 0.002 kg, the Shim is lightweight yet robust to maximize your engine's function.Quality through OEM PartsThe comparison number 81323130017 identifies this high-quality OEM part, ensuring that your MAN D engines deliver optimal performance. Our selected OEM parts are characterized by durability and efficiency, ensuring reliable use in marine and stationary applications.
SHIM - 81323130016 suitable for MAN D engines
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SHIM - 81323130015 suitable for MAN D engines
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SHIM - 81323130014 suitable for MAN D engines
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SHIM - 81323130012 suitable for MAN D engines
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SHIM - 81323130010 suitable for MAN D engines
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SHIM - 81323130006 suitable for MAN D engines
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SHIM - 81323130002 suitable for MAN D engines
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SHIM - 81323130001 suitable for MAN D engines
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PLAIN WASHER - 81323120993 suitable for MAN D engines
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WASHER 70X77,7X4,4-C22 - 81323120988 suitable for MAN D engines
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PLAIN WASHER - 81323120987 suitable for MAN D engines
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PLAIN WASHER - 81323120968 suitable for MAN D engines
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WASHER 95,2X109,6X0,2-CK60-BK - 81323120958 suitable for MAN D engines
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WASHER 95,2X109,6X0,7-CK60-BK - 81323120948 suitable for MAN D engines
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PLAIN WASHER - 81323120947 suitable for MAN D engines
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WASHER 95,2X109,6X0,8-CK60-BK - 81323120946 suitable for MAN D engines
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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.
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.