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 - 9443031 suitable for Volvo/Volvo Penta engines
Precision in Detail: Plug 9443031 Discover the plug with the comparison number 9443031, which meets the highest quality standards. This OEM replacement part has been developed with smart technology that allows for easy integration into engines. If you want to work efficiently, this product is exactly right for you!
PLUG - 943835 suitable for Volvo/Volvo Penta engines
Optimal Plug for Your Engine TechnologyDiscover our Plug, comparison number 943835, which is specifically suitable as an OEM replacement part. This product is compatible with Volvo/Volvo Penta engines and is characterized by precise manufacturing. Weighing only 0.003 kg, this part offers excellent balance in application, making it ideal for marine and stationary use.Efficiency Enhancement through Custom-Fit ComponentsThe Plug is designed to meet high demands in marine and industrial environments. As a reliable OEM replacement part, quality and fit are paramount. This contribution ensures the longevity and performance of your engines. Rely on a replacement part that is tailor-made for seamless integration.
PLUG - 943681 suitable for Volvo/Volvo Penta engines
OEM Replacement Part for Your Specific Requirements Discover our Plug, which is suitable for Volvo/Volvo Penta engines. The comparison number 943681 ensures that this product meets the highest standards and perfectly fits your engine needs. Weighing only 0.074 kg, this OEM replacement part offers a balanced combination of precision and stability.
PLUG - 943589 suitable for Volvo/Volvo Penta engines
Excellent Plug for Your Engine RequirementsDiscover our outstanding plug, marked with the comparison number 943589. This OEM replacement part ensures perfect fit and exceptional performance, and is specifically designed for a variety of applications. The quality of the replacement parts meets high standards, providing a reliable solution for your engines.
PLUG - 943006 suitable for Volvo/Volvo Penta engines
Maximum Performance with Comparison Number 943006Discover the product Plug with the comparison number 943006, an essential OEM spare part from the group of Locking parts. It ensures a perfect fit, ideally tuned to the demanding challenges that arise in engines.Perfect Fit in ApplicationThis compact Plug weighs just 0.004 kg. It is optimally suited for Volvo/Volvo Penta engines and impresses with durability and efficiency, fully in line with expectations for an OEM spare part.
PLUG - 942352 suitable for Volvo/Volvo Penta engines
Excellent Product with Comparison Number 942352Discover the plug that carries the comparison number 942352 and is specifically designed for use in your engines. This product is an OEM replacement part and offers excellent quality. Manufactured with the highest standards of precision, this plug will exceed your expectations and seamlessly integrate into your application. Every detail is aimed at robustly and efficiently supporting functionality.Flexible Application for EnginesThe plug is suitable for Volvo/Volvo Penta engines and contributes to optimal operating temperatures and smooth engine operation in forward-looking applications. Its functionality makes it an indispensable replacement part in your maintenance routine. Wherever engines need to operate reliably in marine and stationary use, this product proves its worth.
PLUG - 9421745 suitable for MTU engines
PLUG with the comparison number 9421745 suitable for MTU engines
PLUG - 941876 suitable for Volvo/Volvo Penta engines
Excellent OEM Replacement Part for Your EnginesDiscover our premium plug with the reference number 941876, an important locking part specifically designed to optimally support engines in your applications. This product is suitable for Volvo/Volvo Penta engines and ensures that you achieve maximum efficiency and longevity in your applications.
PLUG - 941400 suitable for Volvo/Volvo Penta engines
Plug as a Crucial OEM Replacement PartThe plug with the comparison number 941400 is an essential OEM replacement part designed for Volvo/Volvo Penta engines. Enhance your equipment with this top-quality product, which is part of the article group of locking parts. With a weight of only 0.023 kg, it simplifies handling and optimizes your gear.Quality for Specific ApplicationsOur OEM replacement part offers the precision needed to ensure the structure and performance of your engines. This product is suitable for the specific requirements of Volvo/Volvo Penta engines. Benefit from original equipment manufacturer quality and secure products that meet the highest standards.
PLUG - 9409949 suitable for MTU engines
Plug: Your OEM Replacement PartDiscover our plug, comparison number 9409949, suitable for MTU engines. With this OEM replacement part, we offer the quality necessary to maximize the performance of your engines. Trust in a product that perfectly meets the demands of our industry.
PLUG - 940287 suitable for Volvo/Volvo Penta engines
Reliable Product: Plug suitable for Volvo/Volvo Penta Discover our Plug marked with the comparison number 940287. This OEM spare part has been specifically designed to meet the requirements of engines. It offers the highest quality and is suitable for Volvo/Volvo Penta engines. Rely on a product that provides you with durability and reliable use.Optimal Use for Engines The Plug weighing only 0.001 kg is lightweight and significantly facilitates installation. It is suitable for various applications in the field of Volvo/Volvo Penta engines, allowing you to depend on the smooth operation of your systems.
PLUG - 93212880006 suitable for MTU engines
Quality Plug: Essential for MTU EnginesDiscover the product with the comparison number 93212880006, an indispensable plug designed to be suitable for MTU engines. This part belongs to the category of locking parts and ensures reliability and optimal functionality in demanding applications.
PLUG - 93211947016 suitable for MTU engines
Convincing Plug with Comparison Number 93211947016Discover our plug, listed under the comparison number 93211947016. This essential OEM spare part is perfectly suited for MTU engines and provides full functionality in your application. Benefit from our extensive range.
PLUG - 927963 suitable for Volvo/Volvo Penta engines
Reliable OEM Replacement Part Suitable for Volvo/Volvo Penta Discover our plug with the comparison number 927963, which efficiently supports every project. This OEM replacement part gives you confidence in the quality and fit necessary for the smooth operation of your drives. The product weighs only 0.03 kg, making installation and handling particularly user-friendly.Plug for Precise Functionality In the category of locking parts, the plug plays a crucial role. It is suitable for Volvo/Volvo Penta engines and helps ensure the efficiency and safety of your applications. A defective component can quickly lead to consequential damage. Therefore, rely on reliable OEM replacement parts that are specifically designed for your needs.
PLUG - 915042012000 suitable for MTU engines
Powerful Plug for Reliable EnginesDiscover our product, the plug with the comparison number 915042012000, suitable for MTU engines. This high-quality OEM replacement part belongs to the group of locking parts, specifically designed for functions in engines. You can rely on the fit and quality of this product.Advantages of OEM Replacement PartsOEM replacement parts are manufactured by the original equipment manufacturer and offer many advantages compared to aftermarket products. The plug with the comparison number 915042012000 is an OEM replacement part that meets high standards. Count on product quality that optimally supports your engine system – suitable for MTU engines.
PLUG - 915042011000 suitable for MTU engines
First-class Plug suitable for MTU enginesOur plug with the comparison number 915042011000 is a decisive locking part from the category of OEM replacement parts. Designed for optimal performance, it is ideally suited for applications with engines.Precision for engines: OEM replacement parts for your needsThis product is specifically suitable for MTU engines, and the OEM replacement part ensures the highest precision and fit. With the comparison number 915042011000, you ensure that you choose a part that meets your needs and supports the functionality of your engines.
PLUG - 915042009001 suitable for MTU engines
Plug with comparison number 915042009001Discover our excellent plug, available under the comparison number 915042009001. This product is an important OEM replacement part that ensures the optimal function of your engines and is designed for use in demanding applications.
PLUG - 915016012002 suitable for MTU engines
Excellent Plug – Comparison Number 915016012002Discover our exceptional plug, comparison number 915016012002, which is ideal for your MTU engines. This top-quality OEM replacement part belongs to the category of locking parts and offers you the quality that is essential for your applications. Suitable for MTU, this product ensures exact fit and the highest standards of origin.Our Quality Claim “Suitable for” EnginesOur OEM replacement parts are specifically designed to optimally support your diesel and gas engines. The plug, comparison number 915016012002, is precisely manufactured and demonstrates the highest efficiency in use for suitable MTU engines. Benefit from our many years of experience in providing engine replacement parts for marine and stationary applications.
SLOTTED PLUG - 915015048000 suitable for MTU engines
Slotted Plug – Optimal Product for Your Requirements Discover our product, the Slotted Plug (Comparison number: 915015048000), a reliable OEM replacement part compatible with MTU engines. This locking part impresses with its precise fit and ensures the efficient operation of your engines.Quality Inspections through Internal Control Systems Our OEM replacement parts are subject to strict internal controls, allowing you to rely on the durability of the products. With our Slotted Plug, you ensure that your diesel and gas engines operate optimally.
SLOTTED PLUG - 915015035001 suitable for MTU engines
Slotted plug with comparison number 915015035001Discover our slotted plug with the comparison number 915015035001, designed as a OEM replacement part. This product is suitable for MTU engines and belongs to the category of locking parts. It optimizes the performance of your machines and contributes to efficiency improvement.
- 915015035000 suitable for MTU engines
Reliable Plug for EnginesDiscover our product, the plug with the comparison number 915015035000. This OEM replacement part is designed to support the optimal operation of your engines. The precision of the plug ensures that it is suitable for MTU engines and meets all performance requirements.Efficient Solutions that ConvinceWith the comparison number 915015035000, we focus on offering replacement parts that fit perfectly. This replacement part is a reliable choice for operators looking for a customized solution to enhance the efficiency of their systems. Our OEM replacement parts support a variety of applications in marine and stationary environments.
PLUG - 915015030000 suitable for MTU engines
Excellent Product: Plug for Your NeedsDiscover our plug with the comparison number 915015030000, a crucial OEM replacement part that optimally supports your MTU engines. This product impresses with top-notch craftsmanship and features that ensure a long lifespan for your machines. Weighing only 0.001 kg, this plug can be effortlessly integrated into your existing systems.Suitable for MTU: Powerful and EfficientThis OEM replacement part is suitable for MTU, specifically designed to support the series 538 and engine type 16V538TB90. With the comparison number 915015030000, you can be confident that all dimensions and technical specifications are precisely adhered to. Do not compromise on quality and performance – choose a product that meets your engine's specifications.
SLOTTED PLUG - 915015024002 suitable for MTU engines
Slotted Plug - The Product in DetailDiscover our slotted plug with the comparison number 915015024002. This OEM replacement part belongs to the group of locking parts and is specifically designed for MTU engines. At MOPA Motorparts, we place great importance on quality and compatibility to meet your specific requirements in marine and stationary applications.
SLOTTED PLUG - 915015020001 suitable for MTU engines
Essential Replacement Part: Slotted PlugDiscover the slotted plug with the comparison number 915015020001, an essential replacement part for your engines. This component ensures reliable sealing and can be easily integrated into various applications in marine and stationary use.
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.