Locking parts – secure fastening for engines and machinery
Locking parts are essential for ensuring that fasteners and mechanical assemblies remain secure under load, vibration and thermal stress. In engines, turbines, marine systems and industrial equipment, locking parts prevent critical components from loosening during operation – a key factor for safety, durability and system integrity.
Choose from following:
PLUG - 859633 suitable for Volvo/Volvo Penta engines
Robust Plug with Comparison Number 859633 The plug with the comparison number 859633 is a crucial OEM replacement part that is ideal for various applications. This product belongs to the category of locking parts and ensures reliable performance.
PLUG - 858410 suitable for Volvo/Volvo Penta engines
Plug with Comparison Number 858410 – An Essential ComponentThe plug with comparison number 858410 is a significant OEM spare part, suitable for Volvo/Volvo Penta engines. Weighing only 0.003 kg, it offers optimal functionality and impressive durability. This product belongs to the category of locking parts and is indispensable for the effective performance of your engines.
PLUG - 856547 suitable for Volvo/Volvo Penta engines
Precise Quality with Comparison Number 856547Discover our plug (comparison number 856547), which is specifically designed to enable optimal connection. This product belongs to the category of locking parts, playing an essential role in the performance and reliability of your engines. It has been carefully manufactured to meet the demands of your application. Weighing only 0.039 kg, it remains lightweight and easy to handle.Suitable for Volvo/Volvo Penta EnginesOur carefully selected OEM spare parts stand for quality and precision. The plug is compatible with Volvo/Volvo Penta engines and offers a high degree of reliability under demanding conditions. Compared to aftermarket variants, which often do not meet the same standards, our quality product provides a superior level of safety and durability.
PLUG - 853531 suitable for Volvo/Volvo Penta engines
Discover Our Plug with Comparison Number 853531Discover our spare part suitable for Volvo/Volvo Penta under the comparison number 853531. This plug belongs to the category of locking parts and is designed to ensure optimal functionality in various applications. Weighing only 0.013 kg, the product is an ideal choice for marine and stationary engines.
PLUG - 853215 suitable for Volvo/Volvo Penta engines
Reliable Plug compatible with Volvo/Volvo Penta enginesDiscover our innovative Plug compatible with Volvo/Volvo Penta engines with the comparison number 853215. This essential from the category of Locking parts offers the highest precision and allows for easy integration into your engines. Weighing only 0.001 kg, it combines stability and lightness in one.
PLUG - 852879 suitable for Volvo/Volvo Penta engines
Outstanding Plug for High-Performance EnginesDiscover our Plug marked with the reference number 852879, designed to be compatible with Volvo/Volvo Penta engines. This OEM spare part ensures that you receive the necessary precision to operate your engines optimally.
PLUG - 8499970082 suitable for MTU engines
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PLUG - 849971 suitable for Volvo/Volvo Penta engines
Discover Flexible Plug – OEM QualityDiscover our plug with the comparison number 849971, a reliable OEM replacement part that meets your requirements in the engine sector. Weighing only 0.008 kg, this product is the ideal solution for your applications. It provides the necessary performance and durability to deliver optimal results in the long run.Suitable for Volvo/Volvo Penta EnginesThis plug is specifically designed to be suitable and compatible with Volvo/Volvo Penta engines. With its high-quality construction, this OEM replacement part ensures a secure and firm fit that supports the functionality of your engine. Using the comparison number 849971 makes it easier for you to search for and replace existing components.
PLUG - 849226 suitable for Volvo/Volvo Penta engines
PLUG with the comparison number 849226 suitable for Volvo/Volvo Penta engines
PLUG - 8491840014 suitable for MTU engines
Plug with Comparison Number 8491840014The plug with the comparison number 8491840014 is an essential component for efficient engine performance. This OEM spare part is ideally suited for use in MTU engines and ensures that your system operates optimally.Efficient Solution for MTU EnginesThis spare part suitable for MTU provides a precise fit that fully meets the requirements of your engines. Furthermore, the high quality of our OEM spare parts ensures that you receive a durable solution that enhances the efficiency of your operations. Trust in our long experience in the industry.
PLUG - 8490740670 suitable for MTU engines
Reliable Plug for Engine Applications Discover the plug with the comparative number 8490740670, developed as an OEM replacement part to ensure the optimal performance of your engines. This product is suitable for MTU engines and is perfect for applications in marine and stationary uses.Diverse Range of OEM Replacement Parts With over 1 million replacement parts in stock, you will find everything you need with us. The excellent workmanship of our OEM replacement parts ensures that you can always rely on quality. Generally, we have various items in stock that are readily available.
PLUG - 848319 suitable for Volvo/Volvo Penta engines
Reliable Plug for Many ApplicationsExperience the powerful plug (comparison number 848319), which serves as an essential spare part for your stationary engines. This plug impresses with its durability and adaptability and is the right component for high demands. The comparison number 848319 ensures that you choose the correct product for your specific applications.
PLUG - 8469971730 suitable for MTU engines
PLUG with the comparison number 8469971730 suitable for MTU engines
PLUG - 8469970130 suitable for MTU engines
Excellent Plug with Comparison Number 8469970130 The plug with the comparison number 8469970130 is an essential product that delivers precise performance for your applications with engines. As part of the group of locking parts, this OEM replacement part offers the highest precision you need in any application.Quality Products Suitable for MTU This OEM replacement part is perfectly suited and compatible with MTU engines. Through strict quality controls, we ensure that our plug meets your requirements optimally.
PLUG - 845071 suitable for Volvo/Volvo Penta engines
Quality and Precision: Plug with Comparison Number 845071Discover the product Plug, suitable for Volvo/Volvo Penta engines, with the comparison number 845071. As an OEM replacement part, we offer you quality that meets your requirements. This item belongs to the group of Locking parts and provides the ideal solution for reliable applications in heavy and demanding environments.Features of the PlugThe Plug is specially designed to be compatible with the excellent Volvo/Volvo Penta engines. Weighing only 0.002 kg, it proves to be practical and easy to handle. Rely on the excellent fit that only OEM replacement parts can provide.
PLUG - 843904 suitable for Volvo/Volvo Penta engines
Precision and Quality: Plug with Comparison Number 843904Discover our effective product, the plug with comparison number 843904. This OEM replacement part offers excellent quality and fit, ideal for use in various engines. It is an essential component, perfectly suited to support the functionality and efficiency of your engines.Easy Replacement: Comparison Number 843904The plug with comparison number 843904 brings quality to every application. Weighing only 0.004 kg, it ensures a straightforward installation. Our OEM replacement part is specially designed for Volvo/Volvo Penta engines, ensuring seamless integration into your existing engine infrastructure. Rely on precise components that offer you long-term reliability.
PLUG - 843903 suitable for Volvo/Volvo Penta engines
Robust Plug with Comparison Number 843903 Discover the outstanding plug with the comparison number 843903. This product, developed as an OEM replacement part, perfects the performance of your engines. It is specifically manufactured to be ideally suited for the highest demands in marine and stationary applications. With the comparison number 843903, you can be assured that you are receiving a product of verified quality.Precise Fit Suitable for Volvo/Volvo Penta Engines The plug is perfectly suited for the engines of Volvo/Volvo Penta. Through the excellent fit of the OEM replacement part, we ensure the optimal function of your machines. It is made from materials designed for the stresses and challenges of the industry. Count on this plug being the best choice for your requirements.
PLUG - 843639 suitable for Volvo/Volvo Penta engines
Plug for Stable Performance Discover our plug with the comparison number 843639. This excellent product belongs to the category of locking parts and helps maintain the quality of your machines. Weighing only 0.071 kg, the plug is lightweight and ideal for professional use.Suitable for Volvo/Volvo Penta Engines This OEM replacement part has been specifically designed to work seamlessly with engines suitable for Volvo/Volvo Penta. Rely on the dependability of our replacement part, which is perfectly tailored to meet the demands of these powerful engines.
PLUG - 841215 suitable for Volvo/Volvo Penta engines
Plug with Comparison Number 841215Discover our product, the plug with the comparison number 841215, suitable for Volvo/Volvo Penta engines. This component is an essential replacement part for your applications. It belongs to the category of locking parts and ensures optimal function of your machines in marine and stationary use.Flexible Application Possibilities of the PlugThe plug, weighing only 0.03 kg, offers the ideal solution for use in engines and impresses with robust materials. This OEM replacement part ensures that all components function seamlessly and optimally support your mechanical applications.
PLUG - 840797 suitable for Volvo/Volvo Penta engines
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PLUG - 840781 suitable for Volvo/Volvo Penta engines
Powerful Plug Compatible with Volvo/Volvo PentaDiscover the plug (comparison number: 840781), an essential component for professional repairs on engines. Compatible with Volvo/Volvo Penta engines, this OEM replacement part offers outstanding accuracy and functionality. Weighing only 0.003 kg, it is ideal for stationary and marine applications.Quality Through OEM Replacement PartsThis product meets all requirements and carries the comparison number 840781 – crucial for identifying top-quality components. Choosing OEM instead of aftermarket is key to ensuring the highest availability and reliability. Your trust in our plug means you're relying on a valuable component that has been specifically designed for Volvo/Volvo Penta engines.
PLUG - 840677 suitable for Volvo/Volvo Penta engines
Exquisite Plug with Comparison Number 840677Discover our OEM replacement part, the plug with comparison number 840677, an important component specifically designed for Volvo/Volvo Penta engines. Weighing only 0.041 kg, this replacement part ensures targeted function and reliability of your drive system.
PLUG - 8397660 suitable for Volvo/Volvo Penta engines
Robust Plug: OEM Quality for Engine UseDiscover our product Plug with the comparison number 8397660, a replacement part suitable for Volvo/Volvo Penta engines. With this OEM replacement part, you achieve optimal fit, which is essential for maintaining your engines. This replacement part has a low weight of only 0.001 kg and is ideal for various applications in the maritime sector.
PLUG - 839629 suitable for Volvo/Volvo Penta engines
Excellent Quality: Plug suitable for Volvo/Volvo PentaDiscover our plug that is suitable for Volvo/Volvo Penta engines. The reference number 839629 indicates the quality of our product. As an OEM replacement part, we offer you components that meet the highest technical standards and optimize the operational processes of your engines.Efficiency and ReliabilityThis OEM replacement part is the ideal component that allows precise adjustments for your engines. Weighing only 0.043 kg, the plug is lightweight yet sturdy. Due to its design, the product is excellent for stationary and maritime use. Rely on these parts for the future of your engines.
Function and benefits
Locking parts are used to fix bolts, nuts, shafts or rotating elements in place. They protect against unintentional movement or unscrewing due to vibration, pressure changes or torque fluctuations. Benefits include:
- Secure hold of mechanical connections
- Increased system safety and reduced failure risk
- Improved service intervals and reliability
In high-performance diesel engines or marine drives, locking systems are critical to prevent loosening of vital components under continuous vibration and extreme temperatures.
Types of locking parts
Our range of locking parts includes:
- Locking washers (e.g. serrated, tab or spring washers)
- Locknuts and self-locking nuts
- Locking clips and retaining rings
- Split pins, cotter pins and safety wires
These components are available in materials such as spring steel, stainless steel, and corrosion-resistant alloys – ideal for use in marine environments or thermal cycling conditions.
Applications in marine and industrial systems
Locking parts are used in crankshaft assemblies, valve trains, coupling flanges, pump mounts and exhaust systems. In maritime settings, reliability under constant vibration and salt exposure is key. We offer OEM-locking solutions suitable for MTU, MAN, Volvo Penta, Deutz and MWM engines – suitable for both new builds and overhauls.
FAQ
What are locking parts used for?
Locking parts secure mechanical fasteners and rotating elements, preventing loosening due to vibration, pressure or thermal expansion. They are vital in engines and machinery to maintain operational safety and performance.
How do I choose the right locking part?
Selection depends on load, operating temperature, vibration level and component type. In high-stress environments, self-locking nuts or tab washers are often preferred over standard fasteners.
Are locking parts reusable?
Some locking parts like tab washers or safety clips are designed for single use, while others like locknuts or spring washers can be reused if undamaged. Always follow engine manufacturer guidelines for replacements.