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 - 8631473 suitable for Volvo/Volvo Penta engines
Plug: Comparison Number 8631473 for Your TechnologyDiscover our Plug, marked with the comparison number 8631473, and rely on quality. This product belongs to the category of locking parts and stands out due to its excellent fit. Weighing only 0.001 kg, the Plug is extremely lightweight and easy to install.
PLUG - 862671 suitable for Volvo/Volvo Penta engines
Robust and Reliable: Plug with Comparison Number 862671The Plug with the comparison number 862671 is an essential OEM replacement part specifically designed for Volvo/Volvo Penta engines. Weighing only 0.114 kg, this product offers the ideal combination of compact design and efficient performance.Comparison Number 862671: Highest Standards for EnginesThis replacement part is offered in excellent quality and provides the necessary fit for for Volvo/Volvo Penta engines. This ensures you receive an authentic product that is ideally suited for your applications.
PLUG - 862335 suitable for Volvo/Volvo Penta engines
Essential Plug: Comparison Number 862335Discover the plug with the comparison number 862335 – an essential OEM replacement part, compatible with all Volvo/Volvo Penta engines. It is precisely tailored to the specific requirements of these engines, and the workmanship meets the high standards you expect from OEM replacement parts.OEM Quality for Optimal FunctionalityThis component is suitable for Volvo/Volvo Penta and offers superior quality compared to aftermarket alternatives. OEM replacement parts are known for their perfect fit and excellent functionality, which is crucial for the longevity of your engines. Weighing only 0.071 kg, the product is not only lightweight but also practical to handle.
PLUG - 862293 suitable for Volvo/Volvo Penta engines
Premium Plug for EnginesThe plug with the reference number 862293 is a reliable component that is perfectly suitable for Volvo/Volvo Penta engines. Weighing only 0.004 kg, it integrates seamlessly into your technical equipment, ensuring efficiency. This OEM replacement part is specifically designed to meet the requirements of your engines and ensures flawless performance.Choose Safely: OEM Replacement Parts of the Best QualityThis product is an OEM replacement part that is precisely suitable for your specific joining connections. The reference number 862293 should be your reference for active maintenance and servicing of engines compatible with Volvo/Volvo Penta. With this plug, you have a practical solution that avoids leakage issues and extends the lifespan of your components.
PLUG - 861918 suitable for Volvo/Volvo Penta engines
High-Quality Plug – Your Replacement Part for Engines Discover our plug with the comparison number 861918, designed as a reliable OEM replacement part. This product belongs to the locking parts and offers an outstanding solution for engines used in marine and stationary applications. The precise fit ensures easy installation, allowing you to be operational again quickly.Powerful OEM Replacement Part Suitable for Volvo/Volvo Penta Engines Our OEM replacement parts stand for quality at original equipment manufacturer level. The plug is optimally suitable for Volvo/Volvo Penta engines and ensures that all specific requirements are met. Weighing only 0.051 kg, this replacement part is pleasantly lightweight yet extremely robust – ideal for use in demanding environments.
PLUG - 861893 suitable for Volvo/Volvo Penta engines
Original Quality: Comparison Number 861893The product with the comparison number 861893 is a reliable plug that offers the highest precision. Suitable for Volvo/Volvo Penta engines, this OEM replacement part provides the perfect solution for maintenance and repair tasks. Weighing only 0.016 kg, it is easy to handle and extremely functional.Meet RequirementsThe product group of locking parts ensures that the plug 861893 meets professional demands. This OEM replacement part is not only durable but also designed to fit optimally with the Volvo/Volvo Penta engines known for their performance and robustness. Trust in the quality of MOPA Motorparts.
PLUG - 861886 suitable for Volvo/Volvo Penta engines
Flexible Plug for Your Requirements The Plug with the comparison number 861886 is the perfect partner for various applications. It is suitable for Volvo/Volvo Penta engines and offers you both reliability and high efficiency. As a replacement part, it is indispensable for the optimal function and performance of your engines.
PLUG - 861848 suitable for Volvo/Volvo Penta engines
Discover the OEM Spare Part: Plug 861848Discover the top-quality plug with the comparison number 861848, an essential OEM spare part specifically designed for demanding applications in engines. This product offers reliable performance and quick installation. The careful craftsmanship ensures that the plug delivers the best results for your application.
PLUG - 861834 suitable for Volvo/Volvo Penta engines
Added Value with our Plug with Comparison Number 861834Discover the outstanding Plug with comparison number 861834, a top-quality OEM replacement part specifically designed for your needs. This product impresses with precise workmanship and is optimized for engines suitable for Volvo/Volvo Penta.
PLUG - 861806 suitable for Volvo/Volvo Penta engines
Top Quality in Connection TechnologyExperience the replacement part suitable for Volvo/Volvo Penta engines with the comparison number 861806. This innovative plug belongs to the group of locking parts and supports consistently reliable performance in your applications.
PLUG - 861805 suitable for Volvo/Volvo Penta engines
Precise Technology for Your EnginesDiscover the plug with the comparison number 861805, an indispensable OEM replacement part designed for Volvo/Volvo Penta engines. With this product, you optimize the functionality of your machines and ensure that your engines work smoothly in marine and stationary applications. Our products are designed to meet the highest standards and integrate seamlessly into your existing systems.Benefits of an OEM Replacement PartThe OEM replacement part with the comparison number 861805 weighs only 0.001 kg and offers you easy handling. This comparatively light component impresses with its exceptional precision and is perfectly suited to be reliably installed in your Volvo/Volvo Penta engines. Trust in the expertise and high quality associated with an OEM replacement part.
PLUG - 861646 suitable for Volvo/Volvo Penta engines
The Precise Plug – Reference Number 861646Discover the plug, reference number 861646 – an essential product that falls under the category of locking parts. It has been manufactured with the highest precision, ensuring that engines operate smoothly. Weighing only 0.066 kg, the product is particularly lightweight and tailored for efficient applications.Familiar OEM Replacement Parts for EnginesThis OEM replacement part is specifically designed for Volvo/Volvo Penta engines. With its stylish construction, the plug ensures that all mechanical components work perfectly together. Contribute to the longevity and performance optimization of your machines by switching to our OEM replacement part.
PLUG - 861551 suitable for Volvo/Volvo Penta engines
Reliable Plug with Comparison Number 861551Discover the plug with the comparison number 861551, which provides a perfect solution for your needs. This OEM spare part ensures an excellent fit and optimal performance. Its sole purpose is to optimize your engines and maintain trouble-free operating conditions. With compact dimensions of 2.1 cm in length and width, and 1.4 cm in height, it can be easily integrated into various systems.Suitable for Volvo/Volvo Penta EnginesThis plug is specifically designed to be suitable for Volvo/Volvo Penta engines. Weighing only 0.024 kg, it is lightweight and easy to handle, while the high quality of workmanship ensures that you receive a reliable solution for your engine application. Additionally, you will find the right component for your specific needs in our extensive range of over 1 million spare parts.
PLUG - 861027 suitable for Volvo/Volvo Penta engines
Efficient Plug for Optimized Engine PerformanceDiscover our plug with the comparison number 861027, which is specially designed to support long-lasting performance in your engines. This product falls under the category of locking parts and meets all relevant standards. The plug has a lightweight of 0.016 kg and is designed to enhance the functionality of all important components.
PLUG - 861019 suitable for Volvo/Volvo Penta engines
Your Ideal Choice: Plug Comparison Number 861019Discover the reliable plug with the comparison number 861019, suitable for engines from Volvo/Volvo Penta. This essential OEM spare part is among the necessary locking parts. With a minimal weight of 0.003 kg, it offers both efficiency and easy installation. Thanks to its precise workmanship, the engine remains in optimal condition.
PLUG - 860926 suitable for Volvo/Volvo Penta engines
Precision Plug with Comparison Number 860926The product plug with the comparison number 860926 is an essential replacement part designed specifically for Volvo/Volvo Penta engines. Protect the performance of your engine by using top-quality locking parts that are precisely tailored to meet the requirements. Weighing only 0.002 kg, it combines convenient features with high quality.Efficient Components for EnginesIn the category of locking parts, this replacement part offers the highest precision. If you are looking for components that are durable and suitable for complex systems, this plug is the right choice. Rely on our quality to ensure the functionality of your engines in the long term.
PLUG - 859877 suitable for Volvo/Volvo Penta engines
Plug with Comparison Number 859877Discover our top-quality product, the plug with comparison number 859877. This OEM replacement part belongs to the category of locking parts and is suitable for Volvo/Volvo Penta engines. Weighing just 0.003 kg, it impresses with simple handling and a precise fit.Optimal Fit for Your EnginesThe plug offers seamless integration, reducing operating costs and optimizing the lifespan of your machines. With us, you receive OEM replacement parts that meet the strict standards of manufacturers. Rely on a product that exceeds your expectations.
PLUG - 859876 suitable for Volvo/Volvo Penta engines
Robust Plug (Comparison Number 859876) for EnginesThe plug with the comparison number 859876 is an essential OEM replacement part specifically designed for use in various engines. With its excellent quality and a weight of only 0.01 kg, this product is ideal for use in a variety of applications. It offers a precise fit and is crucial for the efficient operation of high-performance engines.
PLUG - 859842 suitable for Volvo/Volvo Penta engines
Efficient Spare Part: Comparison Number 859842Discover our plug with the comparison number 859842. This product is an essential locking part specifically designed to achieve maximum performance in your engines. Weighing only 0.02 kg, this plug offers remarkable accuracy for your applications.Best Quality Suitable for Volvo/Volvo Penta EnginesThe plug is an OEM replacement part, suitable for Volvo/Volvo Penta engines. Our products maintain the highest standards regarding durability and performance, allowing you to rely on long-lasting functionality. Each component is carefully selected to meet the demanding requirements in marine and stationary applications.
PLUG - 859727 suitable for Volvo/Volvo Penta engines
Functional Plug – Comparison Number 859727 Experience the plug with comparison number 859727, which is perfectly suited for your applications. This OEM spare part impresses with its top-notch processing and is ideal for engines compatible with Volvo/Volvo Penta. The perfect replacement for efficient operations in marine and stationary use makes your life easier.
PLUG - 859725 suitable for Volvo/Volvo Penta engines
First-Class Plug: Comparison Number 859725 Discover our Plug, listed with the comparison number 859725. This product is an OEM replacement part specifically designed to provide maximum efficiency for diesel and gas engines. Weighing only 0.025 kg, this replacement part offers high functionality and reliable performance.
PLUG - 859723 suitable for Volvo/Volvo Penta engines
Excellent Plug for Engine OptimizationDiscover our high-quality plug, which is listed under the comparison number 859723. This OEM replacement part is an essential component for the proper functioning of engines. It is a locking part that is optimally tailored to meet requirements and offers high reliability.Suitable for Volvo/Volvo Penta EnginesOur plug is specifically designed to meet your needs. It is compatible with Volvo/Volvo Penta engines, ensuring flawless functionality. Weighing only 0.008 kg, this product should be part of your inventory of efficient OEM replacement parts.
PLUG - 859689 suitable for Volvo/Volvo Penta engines
PLUG with the comparison number 859689 suitable for Volvo/Volvo Penta engines
PLUG - 859634 suitable for Volvo/Volvo Penta engines
Important OEM Replacement Part for Engine Operation The plug with the comparison number 859634 is an essential OEM replacement part specifically designed for Volvo/Volvo Penta engines. The high quality of this product ensures that your engines operate efficiently. Weighing only 0.003 kg, it is extremely handy and easy to use.Comparison Number 859634 for Precise Solutions Equipped with the comparison number 859634, you can be assured that you are receiving a suitable locking part. This replacement part fits exactly for Volvo/Volvo Penta engines and meets all the manufacturer's requirements. Rely on our OEM replacement parts, which are tailored to the specific needs of the respective 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.