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 - 3582636 suitable for Volvo/Volvo Penta engines
Robust Plug for Your ApplicationsDiscover our plug (comparison number: 3582636), an OEM spare part designed to optimize the performance of your engines. This part belongs to the group of locking parts and offers reliable functionality. Weighing only 0.026 kg, the plug is ideally suited to the needs of high-performance applications.OEM Spare Parts Compatible with Volvo/Volvo Penta EnginesThis plug is chosen to provide strong performance compatible with Volvo/Volvo Penta engines. The comparison number 3582636 ensures that the part meets strict criteria essential for efficient use. Rely on our additional range to ensure that your machines operate at their best.
PLUG - 3582174 suitable for Volvo/Volvo Penta engines
Advantages of the Plug in DetailDiscover our plug, which includes OEM replacement parts, with the comparison number 3582174, specifically designed for use in engines. Weighing only 0.036 kg, the plug is not only lightweight but also offers excellent performance. This product is suitable for Volvo/Volvo Penta engines and is ideal for applications in marine and stationary technology.Convincing Quality and FunctionalityOur OEM replacement parts meet high demands for performance and precision, ensuring that this plug provides the optimal fit for your requirements. The comparison number 3582174 stands for reliability in application, and the plug ensures that your applications function optimally, compatible with Volvo/Volvo Penta engines.
PLUG - 3581976 suitable for Volvo/Volvo Penta engines
Precise Requirements: Plug Comparison Number 3581976The Plug (comparison number: 3581976) is an essential OEM spare part categorized under Locking parts. Weighing only 0.018 kg, this product offers compact dimensions without compromising on quality. Each product has been carefully developed to ensure outstanding structure and durability, making it indispensable for those with high demands regarding the efficiency of engines.Unmatched Quality of OEM Spare PartsThe OEM spare part is suitable for Volvo/Volvo Penta engines and supports the top-notch functionality of these machines. With permanent testing criteria linked to the defined standards of the manufacturer, we ensure that every customer receives a reliable product that meets and exceeds their expectations.
PLUG - 3581973 suitable for Volvo/Volvo Penta engines
Efficient Plug for Volvo/Volvo PentaThe plug with the reference number 3581973 is an excellent OEM spare part specifically designed for engines from Volvo/Volvo Penta. Weighing only 0.011 kg, this item combines lightweight construction with outstanding functionality. We meet your requirements for quality and durability through the best materials and workmanship.
PLUG - 3581687 suitable for Volvo/Volvo Penta engines
Innovative Product: Plug for Various Engine ApplicationsDiscover the plug with the comparison number 3581687 – an important OEM replacement part that is perfectly suited to support your systems. This product is custom-fitted for Volvo/Volvo Penta engines, combining quality and functionality. Weighing only 0.075 kg, it integrates seamlessly into your system, ensuring optimal performance.
PLUG - 3581563 suitable for Volvo/Volvo Penta engines
Premium Plug with Comparison Number 3581563 Discover the plug, comparison number 3581563, compatible with engine systems from Volvo/Volvo Penta. This high-quality OEM replacement part ensures maximum efficiency and durability of your engines. By using premium materials and precise craftsmanship, you receive a product that delivers reliable performance.
PLUG - 3580477 suitable for Volvo/Volvo Penta engines
Plug Suitable for Your NeedsDiscover our meticulously crafted plug, listed under the comparison number 3580477. This product is suitable for Volvo/Volvo Penta engines and belongs to the category of locking parts. With a weight of only 0.001 kg, the plug is ideal for various applications where precision and reliability are required.
PLUG - 3580455 suitable for Volvo/Volvo Penta engines
Robust Features of the Plug 3580455Discover our plug that offers both functionality and durability. This product corresponds to the comparison number 3580455 and is an essential locking part that helps optimize the performance of your system. Manufactured to industry-specific standards, it ensures a reliable connection in your engine-driven applications.Suitable for OEM Parts from Volvo/Volvo PentaOur plug is specifically designed for Volvo/Volvo Penta engines. This provides business customers optimal compatibility and performance in a variety of marine-application-based systems. By using locking parts, you optimize the lifespan of your engines.
PLUG - 3580364 suitable for Volvo/Volvo Penta engines
Quality Assurance with the PlugThe Plug with the reference number 3580364 is a top-quality OEM spare part that is crucial for the functionality of your engines. This product is specifically designed to be suitable for Volvo/Volvo Penta engines and belongs to the group of Locking parts. Weighing only 0.007 kg, it combines lightness and reliability for outstanding performance.Perfect Fit for Optimal PerformanceThe reference number 3580364 ensures that this product meets the specific requirements of all Volvo/Volvo Penta engines. By choosing to rely exclusively on OEM spare parts, we confirm that every component is bound to the highest standards of manufacturer quality. OEM parts often exceed the standards of aftermarket products by providing precision and durability.
PLUG - 3580091 suitable for Volvo/Volvo Penta engines
Analysis: Plug with Comparison Number 3580091Discover our Plug with the comparison number 3580091, specially designed for Volvo/Volvo Penta engines. This product belongs to the category of locking parts and is synonymous with excellent quality and durability. Ideal for diesel and gas engines in marine and stationary applications, as well as in locomotives.OEM Replacement Parts: For Optimal PerformanceOur OEM replacement part offers you a precise and reliable solution. Compared to the aftermarket, you benefit from unique craftsmanship and functionality. Every detail has been carefully crafted to ensure that the Plug is optimally fitting for Volvo/Volvo Penta engines, ensuring superior performance.
- 3529971230 suitable for MTU engines
Efficient Performance Enhancement with Our PlugDiscover our plug, the OEM replacement part that makes the best use for your engines. The reference number 3529971230 assures you that you are receiving a tested product manufactured under the strict requirements of the Original Equipment Manufacturer. Weighing only 0.018 kg, this plug optimizes your applications and ensures excellent performance.Suitable for MTU EnginesThis plug is specifically designed for MTU engines and ensures maximum efficiency in demanding environments. The precision in manufacturing makes this replacement part the ideal choice for operators of marine and stationary engines. With impressive durability, it secures your need for reliability.
- 3529971130 suitable for MTU engines
Efficient Plug, Suitable for MTU EnginesDiscover the product with the reference number 3529971130, a powerful plug specifically designed to optimize the efficiency of your MTU engines. This premium replacement part contributes to the durability and reliability of your system with its precise fit and brings renewed performance to your machines.
PLUG - 3529970730 suitable for MTU engines
Efficient OEM Spare Parts – Your Reliable PlugDiscover our premium product, the Plug with the comparison number 3529970730. These OEM spare parts are specially selected to support diesel and gas engines at optimal performance. With our long-standing expertise, MOPA Motorparts provides you with the best product solutions that meet the requirements and standards of the industry.Optimizing Your Machines – Suitable for MTU EnginesThe Plug, which is perfectly designed for MTU engines, enables smooth operation in your machines. Weighing just 0.046 kg, this OEM spare part is designed for user-friendly handling, making the replacement straightforward. Trust in our experience with products tailored to meet your needs.
PLUG - 3520160161 suitable for MTU engines
Quality Plug - Comparison Number 3520160161Discover our new product, the Plug with the comparison number 3520160161. It offers a reliable solution for engines that require high performance. This replacement part is designed to function optimally and is suitable for MTU engines in operation.
PLUG - 3520110135 suitable for MTU engines
Plug with Comparison Number 3520110135Discover our plug, which is equipped with the comparison number 3520110135. This essential OEM spare part is ideally suited to support the performance and reliability of your engines. With precise processing, this product meets a variety of requirements.Reliable Quality for Your NeedsThe plug, compatible with MTU engines, offers you the usual original equipment manufacturer quality. You can rely on the durability and performance of this OEM spare part. Each product undergoes strict internal controls to ensure the highest standards.
PLUG - 347822R1 suitable for MTU engines
Plug with Comparison Number 347822R1Discover the plug with the comparison number 347822R1, a part suitable for MTU engines. This product belongs to the group of locking parts and is specifically designed to efficiently maintain your engines and enhance their performance.Quality through OEM Spare PartsThe part with the comparison number offers unique safety features that effectively support your engines. Thanks to this product, it is ensured that your engines always operate optimally.
PLUG - 3469970230 suitable for MTU engines
Ideally Suitable Replacement PartDiscover our OEM replacement part equipped with the reference number 3469970230. The Plug is suitable for MTU engines and belongs to the group of Locking parts. By using this replacement part, you ensure the optimal functionality of your machines and systems.
PLUG - 3469970130 suitable for MTU engines
Plug: Optimal Solution for Your RequirementsThe Plug with the reference number 3469970130 is an essential OEM spare part specifically designed for MTU engines. This product offers outstanding performance and perfect integration into your application. Trust in quality that meets the demands of MTU.
CORE PLUG HOLE - 3469970020 suitable for MTU engines
CORE PLUG HOLE with the comparison number 3469970020 suitable for MTU engines
PLUG - 3464210011 suitable for MTU engines
High-Performance Plug for EnginesDiscover our plug, which has the reference number 3464210011, an essential locking part. This product supports the maximum efficiency of your engines, which require high-quality materials and craftsmanship.Quality OEM Replacement Parts ComparedOur OEM replacement parts offer you an excellent choice compared to aftermarket solutions. The plug is optimally suited for MTU engines, contributing to a long-lasting use.
PLUG - 3413453600 suitable for MTU engines
Flexible Plug: Comparison Number 3413453600 The product with the comparison number 3413453600 is a reliable plug that is ideally suited for your requirements. With this OEM replacement part, you ensure the efficiency of your engines and securely switch to top quality without compromise.Perfect Fit for MTU Engines This plug is specifically designed to fit MTU engines. Due to its precise fit, it is well suited for marine and stationary engines and demonstrates its strengths even in demanding situations.
PLUG - 3269970103 suitable for MTU engines
Plug with Comparison Number 3269970103Discover the OEM replacement part Plug with comparison number 3269970103, suitable for MTU engines. Our product ensures performance stability in demanding applications and belongs to the category "Locking parts". With this high manufacturing quality, you enhance the efficiency of your engines.
PLUG - 3242510083 suitable for MTU engines
Efficient Plug with Comparison Number 3242510083 Our product, the plug with the comparison number 3242510083, is an essential component in the category of locking parts. Designed as an OEM replacement part, it meets quality standards specifically tailored for demanding applications.
PLUG - 3177470 suitable for Volvo/Volvo Penta engines
Plug for Unrestricted ApplicabilityThe OEM spare part plug (reference number 3177470) is an essential component suitable for Volvo/Volvo Penta engines. Its excellent craftsmanship enables smooth functionality in your drive system.
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.