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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.

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VALVE - 81461610004 suitable for MAN D engines

VALVE - 81461610004 suitable for MAN D engines

OE Replacement Part with Comparison Number 81461610004Discover the valve with the comparison number 81461610004. This OEM replacement part is an essential component specifically designed to enhance the efficiency of your engine. Weighing only 0.004 kg, it impresses with its precise fit and quality.Suitable for MAN D EnginesThe valve is suitable for MAN D engines and offers you the security and precision you need. Each part undergoes strict quality controls to ensure optimal performance. Rely on the high standards that this OEM replacement part meets to serve your engine technology requirements.

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VALVE - 81459056100 suitable for MAN D engines

VALVE - 81459056100 suitable for MAN D engines

Premium Valve suitable for MAN D enginesDiscover our premium valve with the comparison number 81459056100, perfectly suited for MAN D engines. This OEM spare part offers excellent fit and ensures optimal function of your engines.Trust in first-class OEM spare partsOur OEM spare parts are characterized by first-class quality. The valve was specifically developed for MAN D to optimize the durability and efficiency of your machines. Rely on our reliable products that meet high manufacturer specifications.

Sale price: €11.19Regular price:€12.43(10% saved)
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VALVE - 81459056088 suitable for MAN D engines

VALVE - 81459056088 suitable for MAN D engines

Efficiency and Reliability: Valve 81459056088The valve with the reference number 81459056088 is an essential OEM replacement part specifically designed to optimize the performance of your engines. Weighing only 0.05 kg, this product ensures efficient operation and is particularly suitable for marine and stationary applications. These products represent outstanding quality and durability in use.Suitable for MAN D Engines: Quality for Your OperationsThis valve is suitable for MAN D engines and ensures that your machines operate under optimal conditions. Using OEM replacement parts assures that you receive the reliability and efficiency your applications need. The large inventory of MOPA Motorparts allows you to quickly and easily access a wide range of replacement parts.

Sale price: €8.12Regular price:€9.02(10% saved)
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VALVE - 81459056081 suitable for MAN D engines

VALVE - 81459056081 suitable for MAN D engines

Excellent Valve Suitable for MAN D EnginesDiscover our valve with the comparison number 81459056081, an OEM replacement part specifically designed for the needs of MAN D engines. This product ensures optimal engine performance and reliability in your applications.

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VALVE - 81459056074 suitable for MAN D engines

VALVE - 81459056074 suitable for MAN D engines

Premium Valve for MAN D Engines: Comparison Number 81459056074 Discover our premium valve, suitable for MAN D engines, which is an essential component for your engines. With the comparison number 81459056074, you receive a product that is critical for the reliability and performance of your diesel or gas engine.OEM Spare Parts in Top Quality Our valves are available as OEM spare parts, which stands for Original Equipment Manufacturer. This ensures that you receive a product that is perfectly suited for the application. Weighing 0.11 kg, this spare part offers excellent handling characteristics and is particularly suitable for marine and stationary engines as well as locomotives.

Sale price: €87.12Regular price:€96.80(10% saved)
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VALVE - 81459050223 suitable for MAN D engines

VALVE - 81459050223 suitable for MAN D engines

Premium Valve suitable for MAN D EnginesDiscover our valve, suitable for MAN D engines with the comparison number 81459050223. This OEM replacement part offers the highest reliability and optimal performance in marine and stationary applications.

Sale price: €54.66Regular price:€60.74(10% saved)
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VALVE - 81459050137 suitable for MAN D engines

VALVE - 81459050137 suitable for MAN D engines

Robust Valve for Reliable Engine PerformanceDiscover our robust valve, suitable for MAN D engines, under the comparison number 81459050137. Our OEM replacement part offers the highest quality and optimal fit that you can expect from a product of reputable origin.

Sale price: €59.37Regular price:€65.96(10% saved)
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CHECK VALVE - 81436216001 suitable for MAN D engines

CHECK VALVE - 81436216001 suitable for MAN D engines

CHECK VALVE with the comparison number 81436216001 suitable for MAN D engines

VALVE - 81436196006 suitable for MAN D engines

VALVE - 81436196006 suitable for MAN D engines

Efficient Valve with Comparison Number 81436196006Experience the valve with comparison number 81436196006, suitable for MAN D engines. This OEM replacement part impresses with excellent performance and reliability that only a manufacturer can provide. Weighing 1.155 kg, it is ideally suited for demanding marine and stationary applications.Large Selection of OEM Replacement PartsOur valve belongs to the category of valves and is part of an extensive inventory of over 1 million replacement parts. Each product is designed as an OEM replacement part to meet the highest standards. You can rely on our product selection being specifically tailored to engines, ensuring smooth operation.

VALVE - 81436196004 suitable for MAN D engines

VALVE - 81436196004 suitable for MAN D engines

Premium Valve Suitable for MAN D EnginesExperience the premium valve with the comparison number 81436196004, specifically designed for MAN D engines. This OEM replacement part offers outstanding quality and reliability necessary for marine and stationary applications. Weighing 1.005 kg, this product is a valuable addition to your engines.

RELAY VALVE - 81436099008 suitable for MAN D engines

RELAY VALVE - 81436099008 suitable for MAN D engines

Relay valve suitable for MAN D enginesDiscover the relay valve with the comparison number 81436099008, an essential OEM spare part, suitable for MAN D engines. This product from the category Valves ensures that your engine operates optimally. Its low weight of only 0.001 kg facilitates integration into your applications and saves time during installation.

RELAY VALVE - 81436096008 suitable for MAN D engines

RELAY VALVE - 81436096008 suitable for MAN D engines

Robust Relay Valve – Your Solution for EnginesDiscover our Relay valve, which is optimally suited for the requirements of compatible with MAN D engines. With the comparison number 81436096008, this OEM spare part is one of the essential components of your engines. The relay valve weighs 1.05 kg and is designed for long-term reliability to perform well in demanding applications such as marine and stationary uses.Compatible with MAN D – Quality that ImpressesThis OEM spare part is not only compatible with MAN D engines, but it is also part of a broad category of valves. Each valve is characterized by proven technology and high-quality standards to optimize the efficiency and performance of your engines. With the relay valve, you are well-equipped to minimize downtime and ensure the functionality of your systems.

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 - 81423866107 suitable for MAN D engines

- 81423866107 suitable for MAN D engines

Control valve suitable for MAN D enginesDiscover our control valve (reference number: 81423866107), an outstanding product specifically designed for MAN D engines. In the category of valves, this OEM replacement part meets the highest demands for performance and functionality. Whether in marine or stationary use, this replacement part ensures optimal performance.

Sale price: €11,359.53Regular price:€12,621.70(10% saved)
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VALVE - 81423866103 suitable for MAN D engines

VALVE - 81423866103 suitable for MAN D engines

Excellent Valve for Engine TypesDiscover our OEM replacement part, the valve (comparison number: 81423866103), suitable for MAN D engines. This product is designed for various applications in marine, stationary, and locomotive use. Rely on our expertise and the quality of our OEM replacement parts.

Sale price: €3,476.19Regular price:€3,862.43(10% saved)
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 - 81423866099 suitable for MAN D engines

- 81423866099 suitable for MAN D engines

Precise Solutions in the Valve Sector Discover our control valve, which is marked with the comparison number 81423866099. This product impresses with its precise craftsmanship and is perfectly suited for the most demanding applications in marine and stationary engines.Spare Parts for Maximum Efficiency The control valve is a spare part developed with high quality standards. Suitable for MAN D engines, it offers reliable performance and a long service life to optimally support the efficiency of your engine.

Sale price: €8,002.92Regular price:€8,892.13(10% saved)
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VALVE - 81423866092 suitable for MAN D engines

VALVE - 81423866092 suitable for MAN D engines

Reliable Valve - Comparison Number 81423866092 Our product, the valve with the comparison number 81423866092, is an indispensable OEM spare part. This valve ensures long-lasting performance and is ideal for applications in marine and stationary sectors.Perfectly Suited for MAN D Engines This OEM spare part is suitable for MAN D engines and offers a precise solution to ensure the efficiency of your drive systems. Our valves are specifically designed to meet the demands of your engines.

Sale price: €879.72Regular price:€977.47(10% saved)
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VALVE - 81423866089 suitable for MAN D engines

VALVE - 81423866089 suitable for MAN D engines

Precision Valve for MAN D EnginesDiscover the valve with the comparison number 81423866089, an OEM replacement part suitable for MAN D engines. This product offers the highest precision and reliability for your engines, making it the ideal choice for various applications.

Sale price: €2,229.20Regular price:€2,476.89(10% saved)
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4/2-WAY SOLENOID VALVE - 81423866086 suitable for MAN D engines

4/2-WAY SOLENOID VALVE - 81423866086 suitable for MAN D engines

Maximum Efficiency for Your EnginesExplore our 4/2-way solenoid valve, marked with the comparison number 81423866086. This OEM replacement part impresses with reliable performance and is optimally suited for MAN D engines. Rely on efficiency in your marine and stationary applications.OEM Replacement Parts for the Highest StandardsWe offer you a wide selection of OEM replacement parts, including our 4/2-way solenoid valve, designed specifically for MAN D engines. Our over 1 million replacement parts ensure that you find exactly the right product for your specific requirements.

Sale price: €653.39Regular price:€725.99(10% saved)
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VALVE BLOCK - 81423866082 suitable for MAN D engines

VALVE BLOCK - 81423866082 suitable for MAN D engines

Improved Solution: Valve block with reference number 81423866082Discover our Valve block, an OEM replacement part that is marked with the reference number 81423866082. This product is specifically suitable for MAN D engines and offers the reliable performance you can expect from a supplier. Weighing 8.17 kg, the valve block boasts a robust construction and durability, making it ideal for marine and stationary applications.

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SOLENOID VALVE - 81423866081 suitable for MAN D engines

SOLENOID VALVE - 81423866081 suitable for MAN D engines

Solenoid Valve: Precision Technology for Your EnginesDiscover our solenoid valve, specifically designed for MAN D engines. With the comparison number 81423866081, this OEM replacement part is essential for the efficient control of your engines. Thanks to its precise design, our product ensures smooth functionality and contributes to optimizing the performance of your diesel and gas engines.Quality and Performance for MAN D EnginesOur solenoid valve, identifiable by the comparison number 81423866081, is an OEM replacement part suitable for MAN D engines and meets the highest standards in engine technology. Weighing only 0.4 kg, the product can be easily integrated and optimizes the control of your system.

Sale price: €521.00Regular price:€578.89(10% saved)
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CONTROL VALVE - 81423866078 suitable for MAN D engines

CONTROL VALVE - 81423866078 suitable for MAN D engines

Precise Solution: Control Valve Compatible with MAN DDiscover our control valve, comparison number 81423866078, designed as an OEM replacement part. This product is specifically suited for MAN D engines and offers excellent performance. Weighing 12.46 kg, the control valve combines robustness and efficiency, essential for use in marine and stationary applications.OEM Replacement Parts: Quality You Can Rely OnOur products are 100% OEM replacement parts that meet the stringent quality standards essential for engines. The control valve with the comparison number 81423866078 impresses with its accuracy and durability, ensuring your machines can operate efficiently. We ensure you receive top-quality replacement parts that perform perfectly.

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 - 81423866072 suitable for MAN D engines

- 81423866072 suitable for MAN D engines

Excellent Control Valve for Optimal Application Discover the control valve with the comparison number 81423866072. This product is an essential OEM spare part and offers the reliability you need for your applications.

Sale price: €5,466.24Regular price:€6,073.60(10% saved)
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CONTROL VALVE - 81423866071 suitable for MAN D engines

CONTROL VALVE - 81423866071 suitable for MAN D engines

Precise Control Valve with Comparison Number 81423866071The control valve with the comparison number 81423866071 is a reliable product that meets the requirements of MAN D engines. This OEM spare part has been developed for precise control of engine parameters and contributes to the efficiency of your diesel or gas engine. Weighing 1.91 kg, it combines stability and excellent performance that optimizes the functionality of the engines.Suitable for MAN D EnginesOur control valve is specifically suitable for MAN D engines and ensures that your engine's performance remains at the highest level. As an OEM spare part, it complies with all specifications and standards, so you can rely on its quality. Every component we distribute undergoes strict internal controls to provide you with the best possible quality.

CONTROL VALVE - 81423866068 suitable for MAN D engines

CONTROL VALVE - 81423866068 suitable for MAN D engines

Control valve with comparison number 81423866068Discover our control valve with the comparison number 81423866068, specifically designed to ensure optimal performance of your engines. Weighing 6.21 kg, this robust component is essential for the smooth operation of your applications in marine and stationary use.Quality of OEM replacement partsThe control valve is an OEM replacement part that undergoes strict quality inspections. This ensures that the product meets the requirements of MAN D engines and offers a long service life. Our satisfied customers trust in the quality we have built over the last 25 years.

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.

Engine valve for industrial and marine engines – suitable for MTU, Deutz, MAN, Volvo Penta and MWM – replacement parts

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.

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