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 - 81907120294 suitable for MAN D engines
Precise solution with shim 81907120294Discover our OEM spare part, the shim (comparison number 81907120294). This product is specifically designed to ensure a perfect fit and high performance for MAN D engines. Each component undergoes strict internal controls to confirm the quality you expect from OEM spare parts.Efficient application suitable for MAN D enginesThe shim ensures that all engine components work together optimally, which is crucial for the efficiency and durability of your machines. By using designs specifically tailored for MAN D engines, we ensure that your drive system runs smoothly in every situation.
SHIM - 81907120293 suitable for MAN D engines
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WASHER 5,3X10X0,5-ST2K50 - 81907120292 suitable for MAN D engines
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SHIM - 81907120231 suitable for MAN D engines
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SHIM - 81907120230 suitable for MAN D engines
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SHIM - 81907120229 suitable for MAN D engines
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SHIM - 81907120228 suitable for MAN D engines
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SHIM - 81907120227 suitable for MAN D engines
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SHIM - 81907120226 suitable for MAN D engines
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WASHER 17X27X1-ST2K60-A3C - 81907120223 suitable for MAN D engines
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WASHER 17X27X6-STE34-A3C - 81907120222 suitable for MAN D engines
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SPRING WASHER - 81907120219 suitable for MAN D engines
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WASHER 11,5X16X2-ST - 81907120217 suitable for MAN D engines
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WASHER 11,5X16X1-ST - 81907120216 suitable for MAN D engines
WASHER 11,5X16X1-ST with the comparison number 81907120216 suitable for MAN D engines
WASHER 22X46X1,5-UST12-A4C - 81907120214 suitable for MAN D engines
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WASHER 9,5X17X5-ST - 81907120211 suitable for MAN D engines
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SHIM - 81907120206 suitable for MAN D engines
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WASHER 50/78X2 - 81907120193 suitable for MAN D engines
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WASHER 36/78X2 - 81907120192 suitable for MAN D engines
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WASHER 22,35X41,2X3,95-ST35 - 81907120187 suitable for MAN D engines
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WASHER 15X80X3-QST340-A4C - 81907120184 suitable for MAN D engines
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WASHER 17X40X4-QSTE340N-NXX - 81907120182 suitable for MAN D engines
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PLAIN WASHER - 81907120176 suitable for MAN D engines
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WASHER 0,3 MM - 81907120173 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.