Engine valve – precision control for marine and industrial engines
Engine valves are essential components in every combustion engine, ensuring precise control over intake and exhaust processes. Whether in marine engines, gas-powered generators, stationary industrial motors, or locomotive engines, the right engine valve ensures operational efficiency, combustion accuracy, and long service life. Choosing OEM-quality engine valve parts is critical for long-term performance, safety, and cost-efficiency.
Choose from following:
VALVE - 51521600002 suitable for MAN D-engines
Powerful Valve – Ideal for Your ApplicationsDiscover our qualitatively excellent valve that provides you with a reliable and effective solution. With the reference number 51521600002, this product is an OEM replacement part specifically designed for various engine requirements. Weighing 0.708 kg, it ensures a robust construction that meets the high standards of the industry.OEM Replacement Parts – Your Best ChoiceOur valve is suitable for MAN D engines and meets the renowned original equipment manufacturer quality. Choose OEM replacement parts to ensure the optimal functionality of your machines. This replacement part ensures a perfect fit and proves to be durable in application.
2/2-WAY VALVE - 51259027007 suitable for MAN D-engines
Professional 2/2-way valve for efficient applicationsDiscover our 2/2-way valve, perfectly suited for various industrial applications. With the comparison number 51259027007, this product is specifically designed to ensure reliable functions. It is an essential component for engine operators.Comparison number 51259027007 for quality-conscious usersThe 2/2-way valve impresses with its quality and compliance with strict safety standards, making it ideal when you rely on reliable OEM spare parts. A robust component that maximizes the functionality of devices and increases durability. Thanks to the correct setting, this product is suitable for MAN D engines, making it ideal for efficiently supporting your operations.
SOLENOID VALVE - 51259020130 suitable for MAN D-engines
Premium OEM Spare Parts for Your RequirementsThe solenoid valve with the comparison number 51259020130 is an attractive OEM spare part, specifically suitable for MAN D engines. This product ensures high performance and reliability for diesel and gas engines in marine and stationary applications.Suitable Solution with Precise ViewWith this comparison number 51259020130, you receive a compatible solenoid valve that integrates optimally into the existing engines. MOPA Motorparts exclusively offers high-quality OEM spare parts that are tailored to the specific requirements of MAN D engines.
VALVE - 51259020126 suitable for MAN D-engines
Premium Valve: Comparison Number 51259020126Discover our Valve with the comparison number 51259020126, which is perfectly suited for your needs in the world of engines. As an OEM spare part, this product impresses with quality and durability, specifically designed to meet the demanding requirements of engines.Tailored for MAN D EnginesThis OEM spare part is suitable for MAN D engines and offers you top performance and reliability. Our valves are precision-engineered to ensure effective functionality in operation – crucial for your engine operation in maritime and stationary applications.
VALVE - 51259020125 suitable for MAN D-engines
Precise Performance of the Valve Discover our OEM replacement part, the valve with the comparison number 51259020125. This precise product is an essential component for your requirements in the marine and stationary fields. As part of the valves category, it ensures that you have optimal access to replacement parts to enhance the efficiency of your drives.
VALVE - 51259020124 suitable for MAN D-engines
Valve with Comparison Number 51259020124 in DetailChoose our valve, which is suitable for MAN D engines, and experience its precision and performance. With the comparison number 51259020124, we offer you a top-quality OEM replacement part specifically developed for the demanding requirements in various applications.
VALVE - 51259020123 suitable for MAN D-engines
Excellent Valve for Highest Demands The valve with the comparison number 51259020123 is an indispensable replacement part for anyone relying on engine performance. This product combines state-of-the-art technology with excellent fit. Whether in marine applications or stationary operation, this valve always ensures the necessary operational performance of your machines.Reliable OEM Replacement Parts for MAN D Our valve is an OEM replacement part specifically designed for MAN D engines. This quality not only ensures long usage but also the efficiency you need for your engines. Rely on high-quality OEM replacement parts to optimize the performance of your MAN D engines.
SOLENOID VALVE - 51259020068 suitable for MAN D-engines
Reliable Solenoid Valve Compatible with MAN D EnginesExperience the operational solenoid valve with part number 51259020068, specifically designed for your needs. This product is an indispensable solution for engines due to its robust construction and precise functionality. It is compatible with MAN D engines and falls under the category of valves. Weighing only 0.212 kg, you can unlock the full potential of your machinery technology.
SOLENOID VALVE - 51259020065 suitable for MAN D-engines
Solenoid Valve for Efficient Engine ControlOur reliable solenoid valve with the reference number 51259020065 is an essential product for your engine equipment. Suitable for MAN D engines, this top-quality OEM spare part provides a solid solution for applications in the field of diesel and gas engines to ensure efficient functionality.Optimal Efficiency for MAN D EnginesThe solenoid valve of this reference number supports the precise control of the engine system. Suitable for MAN D engines, this OEM spare part is well suited to maintain the operational safety and lifespan of your machines. Rely on quality and benefit from an attractive price-performance ratio.
SOLENOID VALVE - 51259020060 suitable for MAN D-engines
Solenoid valve with comparison number 51259020060Discover the solenoid valve with comparison number 51259020060, a reliable OEM spare part. This product belongs to the group of valves and supports optimal functionality in various applications, without neglecting the specific requirements of the industry. Weighing only 0.13 kg, the solenoid valve is ideal for specialized uses.Efficient part, suitable for MAN D enginesThe solenoid valve is perfectly compatible with MAN D and offers a specialized solution for your engine requirements. As an OEM spare part, you benefit from the first-class quality that is appreciated in various applications. Ensure the smooth operation of your machines without concerns about performance losses.
SOLENOID VALVE - 51259020059 suitable for MAN D-engines
Solenoid Valve: Precise Control Discover our solenoid valve (comparison number: 51259020059), a fundamental product from the group of valves, suitable for MAN D engines. Weighing only 0.13 kg, this replacement part combines robustness and efficiency – perfect for marine applications and stationary use, where reliability is crucial.OEM Replacement Parts: Quality for Engines As an OEM replacement part, our solenoid valve meets the highest demands for performance and function. Designed for MAN D, it ensures precise control of operating currents and stands for maximum readiness for use. Invest in quality and find replacement parts that meet your needs.
AIR SUPPLY VALVE - 1417413092 suitable for Bosch engines
Air Supply Valve: Your Solution for EnginesDiscover our reliable air supply valve, comparison number 1417413092, an OEM replacement part specifically designed for MAN D engines. Weighing only 0.013 kg, this product offers an excellent solution for your engine requirements and impresses with precise accuracy.
PRESSURE RELIEF VALVE - 51131150039 suitable for MAN D-engines
Reliable Pressure Relief Valve for Powerful EnginesExperience the premium pressure relief valve with the comparison number 51131150039, a tailored OEM spare part specifically designed for applications in marine and stationary engines. This airtight component weighs only 0.14 kg and ensures reliable protection and functionality within your engines.Expertise for Premium OEM Spare PartsOur product is exactly the right spare part suitable for MAN D engines, providing the quality you need for long-term security. Compared to aftermarket solutions, our OEM spare parts offer a precise fit and fully comply with the manufacturer's specifications, ensuring your engine operates optimally in all situations.
VALVE - 51131150038 suitable for MAN D-engines
Powerful Valve Suitable for MAN D EnginesDiscover the valve with the comparison number 51131150038, an outstanding OEM spare part that offers both quality and reliability. This spare part is specially suitable for MAN D engines, making it the ideal choice for any demanding application in marine and stationary technology as well as in locomotives.Convincing Quality – Comparison Number 51131150038Thanks to OEM standards, this product meets the highest requirements and ensures that your engines function optimally. The valve weighs only 0.08 kg, significantly facilitating handling. Due to its excellent craftsmanship, it is designed for long life and optimal performance, meeting the needs of diesel and gas engines.
PRESSURE RELIEF VALVE - 51131150037 suitable for MAN D-engines
Pressure Relief Valve: Quality for Engine PerformanceDiscover our pressure relief valve, comparison number 51131150037, which is suitable for MAN D engines. Weighing only 0.143 kg, this OEM replacement part impresses with its excellent quality and durability. As part of our product range, this valve offers a reliable solution for optimal operation in your engine's performance.Efficient Pressure RegulationThe pressure relief valve, suitable for MAN D, plays a central role in pressure regulation within the engine. Through precise adjustment, it ensures that engines are protected from overload, helping you avoid costly damage. Rely on this OEM replacement part to enhance the performance and lifespan of your engines.
VALVE - 51131150030 suitable for MAN D-engines
VALVE with the comparison number 51131150030 suitable for MAN D-engines
VALVE - 51131090028 suitable for MAN D-engines
Precision with Comparison Number 51131090028The intelligent valve with comparison number 51131090028 is an essential product for any application with MAN D engines. Weighing only 0.006 kg, this component ensures reliable performance and correct functionality in daily use. The quality of this spare part contributes to optimal engine outfitting, thus supporting the efficiency and longevity of your machines.Trustworthiness of OEM Spare PartsOur valve is an OEM spare part specifically designed for MAN D engines. By using our OEM spare parts, you secure the best possible performance of the engines. The comparison number 51131090028 allows you to quickly identify the right product and make your operational processes as efficient as possible.
SOLENOID VALVE - 51131090022 suitable for MAN D-engines
Discover the Solenoid ValveExperience our solenoid valve, marked with the comparison number 51131090022. This product is specifically designed and suitable for MAN D engines to enhance their efficiency and performance. With the precise fit of the OEM spare parts, you achieve not only perfect accuracy but also the highest quality.Essential for MAN D EnginesThe solenoid valve plays a crucial role in the functionality of engines. For optimal performance in continuous operation, our OEM spare parts are indispensable, especially when it comes to reliable engines for stationary and marine applications. Weighing 5.58 kg, this product combines robust features in a compact design.
SOLENOID VALVE - 51131090019 suitable for MAN D-engines
Quality Solenoid Valve for High-Performance EnginesDiscover our solenoid valve, which is listed under the comparison number 51131090019. This product belongs to the category of valves and is specifically designed for MAN D engines. The excellent craftsmanship ensures optimal functionality, which is especially essential in the marine and stationary sectors.Suitable for MAN D - Perfect Fit and FunctionWith a weight of 4.206 kg, our OEM replacement part meets all expectations for efficient engine performance. The solenoid valve is designed as an OEM replacement part and offers the same quality as the components provided by the equipment manufacturers. Rely on outstanding efficiency and durability when using this product.
THROTTLE VALVE - 51131056021 suitable for MAN D-engines
Efficient Throttle Valve for Your MAN D EnginesDiscover the throttle valve replacement part, suitable for MAN D engines. With the comparison number 51131056021, this OEM replacement part ensures optimal performance of your engines. Rely on quality and expertise to keep your diesel and gas engines running reliably at all times.Comparison Number 51131056021 – Your SolutionThe comparison number 51131056021 is your essential reference for top-class engine performance. This OEM replacement part impresses with high reliability and functionality. Trust the throttle valve product, specifically designed for the challenges of your MAN D engines, to avoid delays in your operations.
THROTTLE VALVE - 51131056020 suitable for MAN D-engines
Optimal Throttle Valve for Your ApplicationsDiscover the throttle valve, a high-quality OEM replacement part suitable for MAN D engines. This product ensures top-notch air regulation and is essential for use in marine and stationary applications. The comparison number 51131056020 uniquely identifies this product and ensures its quality.
- 51131056019 suitable for MAN D-engines
Quality Product for Efficient EnginesExperience the throttle valve dv-e5 dmr57, our OEM replacement part with the comparison number 51131056019. This product is specifically manufactured as a damping element to support optimal performance in engines. Trust our decades of expertise!
THROTTLE VALVE - 51131056018 suitable for MAN D-engines
Precise Product for EnginesDiscover our OEM replacement part, the throttle valve with the comparison number 51131056018. This replacement part is suitable for MAN D engines and ensures that your engine operates efficiently. OEM replacement parts are characterized by their quality and precise fit, which is essential for the longevity and optimal performance of your engine.
THROTTLE VALVE - 51131056009 suitable for MAN D-engines
Throttle Valve - Efficient Solution for MAN D EnginesDiscover the throttle valve with the comparison number 51131056009, a precise OEM replacement part, suitable for MAN D engines. This product ensures durability and optimization of your machine performance. Rely on extensive experience in engine technology.For Smooth Performance – Fit MattersThe throttle valve is essential for the efficient operation of engines. With the comparison number 51131056009, you receive an OEM replacement part that has been specifically developed, suitable for MAN D engines. Count on high standards and quality in your applications.
What is an engine valve?
An engine valve is a mechanical component that opens and closes to control the flow of gases into and out of the engine cylinders. Typically made from heat-resistant metals, each valve for engine operation must withstand extreme temperatures and high-pressure environments.
There are two primary types: intake valves, which allow the air-fuel mixture to enter the combustion chamber, and exhaust valves, which release burned gases after combustion. The opening and closing cycles of these valves are precisely timed to the engine’s rotation, ensuring seamless combustion and power delivery.
Function and benefits of engine valves
The valves engines rely on must perform under extreme stress. The proper functioning of each valve of engine directly impacts power output, fuel efficiency, and emissions. Worn or faulty motor valves can lead to misfires, reduced engine performance, overheating, or even total engine failure.
Here are the key benefits of using high-quality engine valve parts:
- Optimized sealing and compression
- Efficient combustion and power delivery
- Extended engine life and maintenance intervals
- Reduced emissions and fuel consumption
- Enhanced thermal and mechanical durability
Types, materials and OEM compatibility
Depending on the application, engine valves differ in design and construction. Intake valves are optimized for cooler airflow, while exhaust valves endure hotter temperatures and aggressive gases. Materials range from hardened steel to titanium alloys, often with surface treatments like nitriding or chrome plating for added wear resistance.
Our engine valve parts meet strict OEM standards, ensuring full compatibility with a wide range of engine models. This includes precise dimensions, material specifications, and valve timing synchronization. Whether you're replacing a single motor valve or sourcing complete valves engines sets, our parts are engineered for lasting reliability and performance.
Use cases and industrial relevance
Engine valves play a central role in marine propulsion systems, stationary power units, gas engine installations, and locomotive drives. In these environments, any failure in the valve for engine functionality can cause severe operational downtime. That’s why OEM-compliant, technically precise engine valve parts are essential across all heavy-duty applications.
Buying advantages with us
We supply only OEM-grade motor valves and engine valve parts, ensuring a precise fit and high durability. With fast DHL Express delivery worldwide, technical customer support, and a wide selection tailored for marine and industrial engines, we help you keep operations running with confidence. Easy online ordering and multiple payment options make the procurement process efficient and secure.
Frequently asked questions about engine valves
What is an engine valve?
An engine valve controls the flow of air, fuel, and exhaust gases in a combustion engine. It opens and closes at precisely timed intervals, supporting efficient combustion and power output.
What are the parts of a engine valve?
Typical parts of a engine valve include:
- Valve head (seals against the seat)
- Valve stem (guides the motion)
- Valve seat (provides the sealing surface)
- Spring and cotters (ensure return and retention)
- Guide (ensures proper alignment and reduces friction)
Related components for sealing and engine control
Engine valves operate in conjunction with other vital components such as gaskets, hoses, valve guides, springs, and cooling systems. These elements must work together to maintain compression, regulate temperature, and ensure overall engine stability—especially in demanding marine and industrial settings.