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.
SPACER RING - 81331120068 suitable for MAN D engines
Robust Product: Spacer Ring with Comparison NumberDiscover our product, the spacer ring with the comparison number 81331120068. This replacement part is suitable for MAN D engines and is characterized by excellent fit in the category of washers. With a weight of 7.43 kg, this spacer ring provides the stability required for use in high-performance engines.Quality You Can TrustThe OEM replacement part meets the strict standards of manufacturers. Our replacement parts are designed to enhance the operational safety of your machines. Rely on the top-notch quality of our spacer ring to optimize the performance of your engines.
SPACER RING - 81331120067 suitable for MAN D engines
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SPACER RING - 81331120046 suitable for MAN D engines
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SPACER RING - 81331120004 suitable for MAN D engines
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PLAIN WASHER - 81326500008 suitable for MAN D engines
Precision Plain Washer Compatible with MAN D EnginesDiscover our OEM replacement part, the plain washer with the comparison number 81326500008. This product is compatible with MAN D engines and impresses with outstanding quality. Weighing only 0.05 kg, the plain washer offers the perfect balance between stability and lightness, enabling maximum use in marine and stationary engine technology.OEM Replacement Parts for the Highest StandardsThe plain washer belongs to the product group “washers” and stands for precision and reliability. Every detail of this replacement part has been manufactured to the highest standards to ensure optimal fit and functionality—ideal for engines subjected to high loads. Trust in our many years of experience in providing OEM replacement parts.
PLAIN WASHER - 81326410195 suitable for MAN D engines
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PLAIN WASHER - 81326410161 suitable for MAN D engines
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PLAIN WASHER - 81324250169 suitable for MAN D engines
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PLAIN WASHER - 81324250145 suitable for MAN D engines
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SPACER RING - 81324200297 suitable for MAN D engines
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INSIDE RING - 81324200296 suitable for MAN D engines
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SPACER RING - 81324200263 suitable for MAN D engines
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SPACER RING - 81324200257 suitable for MAN D engines
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INSIDE RING - 81324200256 suitable for MAN D engines
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SPACER RING - 81324200179 suitable for MAN D engines
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INSIDE RING - 81324200177 suitable for MAN D engines
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INSIDE RING - 81324200168 suitable for MAN D engines
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INSIDE RING - 81324200163 suitable for MAN D engines
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TOOTH LOCK WASHER - 81324200107 suitable for MAN D engines
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TOOTH LOCK WASHER - 81324200100 suitable for MAN D engines
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- 81323130574 suitable for MAN D engines
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- 81323130569 suitable for MAN D engines
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- 81323130567 suitable for MAN D engines
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PLAIN WASHER - 81323130566 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.