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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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NON-RETURN VALVE - 88521206008 suitable for MAN D engines

NON-RETURN VALVE - 88521206008 suitable for MAN D engines

Non-return valve - Comparison Number 88521206008Discover our non-return valve with the comparison number 88521206008, specifically designed to ensure reliable performance. This product is suitable for MAN D engines and falls under the category of valves. Weighing only 0.03 kg, it is perfect for the requirements in marine and stationary applications, combining quality with functionality.Original Equipment Manufacturer Quality for Increased EfficiencyRely on our OEM spare parts that provide you with original equipment manufacturer quality. The non-return valve is an important component compatible with MAN D engines and offers a cost-effective solution for your engine challenges. At MOPA Motorparts, we focus on precise materials and modern manufacturing technologies to ensure the longevity and efficiency of our products.

Sale price: €70.04Regular price:€77.82(10% saved)
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NON-RETURN VALVE - 88521206006 suitable for MAN D engines

NON-RETURN VALVE - 88521206006 suitable for MAN D engines

Safe Non-return valve with reference number 88521206006 Our non-return valve with reference number 88521206006 represents a reliable choice for your needs. This OEM spare part is specifically designed to optimize the performance of engines. It combines the highest manufacturing standards for a long lifespan and significant efficiency.Perfectly suitable for MAN D engines The non-return valve is suitable for MAN D engines and offers excellent fit accuracy. Weighing 0.16 kg, our product combines lightweight with stability, making it the ideal choice for maritime and stationary use.

Sale price: €59.67Regular price:€66.30(10% saved)
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THROTTLE VALVE - 88521206004 suitable for MAN D engines

THROTTLE VALVE - 88521206004 suitable for MAN D engines

Efficient Throttle Valve for MAN D EnginesDiscover the throttle valve (comparison number: 88521206004), an essential product from the category Valves. This OEM replacement part is suitable for MAN D engines and ensures optimal air supply, which is crucial for the efficiency of your drive system. Weighing only 0.018 kg, this throttle valve combines lightness and robustness, making it ideal for marine and stationary applications.

VALVE - 88272006017 suitable for MAN D engines

VALVE - 88272006017 suitable for MAN D engines

Valve: Your Reliable Replacement PartDiscover our valve with the comparison number 88272006017, a tailor-made OEM replacement part that fits perfectly for MAN D engines. This product not only offers high quality but also excellent performance for your engines.OEM Replacement Parts for the Highest StandardsOur replacement parts are designed for MAN D engines and ensure that your engines operate efficiently. With the comparison number 88272006017, you will receive a part that can be perfectly integrated into the system.

PRESSURE CONTROL VALVE - 88264830004 suitable for MAN D engines

PRESSURE CONTROL VALVE - 88264830004 suitable for MAN D engines

High-Performance Pressure Control Valve with Comparison Number 88264830004Discover our pressure control valve, marked with the comparison number 88264830004, specifically designed for MAN D engines. This OEM spare part provides the reliability and performance your engines need. Rely on OEM spare parts to ensure the highest quality and optimal performance for your systems.

SOLENOID VALVE - 88259026021 suitable for MAN D engines

SOLENOID VALVE - 88259026021 suitable for MAN D engines

Precise Quality: Solenoid Valve with Comparison Number 88259026021 Discover our reliable solenoid valve with comparison number 88259026021, specially designed to meet the highest demands. Structurally robust and well-manufactured, this product provides the reliability you need for engines. The solenoid valve weighs 1.58 kg and is an ideal choice for your requirements.OEM Spare Parts Perfectly Fit for MAN D Engines Our OEM spare parts, such as the solenoid valve with comparison number 88259026021, are compatible with MAN D engines. These parts offer the original equipment manufacturer quality that is crucial for the long-term performance of your engines. Compared to aftermarket products, our solenoid valve and other OEM spare parts provide the reliability you desire.

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SOLENOID VALVE - 88259026020 suitable for MAN D engines

SOLENOID VALVE - 88259026020 suitable for MAN D engines

Solenoid valve with comparison number 88259026020Discover our solenoid valve, listed under the comparison number 88259026020. This replacement part is ideally suited for various engine requirements. Weighing 1.4 kg, the product is characterized by its quality and durability. It can be found in the category of valves and offers reliable functionality in demanding operations.

Sale price: €499.65Regular price:€555.17(10% saved)
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SAFETY VALVE - 88255030028 suitable for MAN D engines

SAFETY VALVE - 88255030028 suitable for MAN D engines

Innovation Power of the Safety ValveDiscover our safety valve with the comparison number 88255030028, specifically designed to ensure optimal functionality for engines. This product belongs to the category of valves and meets the highest standards. Weighing just 0.24 kg, it is an extremely functional and reliable component, perfectly suitable for use in marine applications and stationary engines.Suitable for MAN D Engines in OEM QualityThis safety valve is compatible with MAN D engines and offers you excellent fit accuracy. As an OEM replacement part, it ensures that you receive a product in OEM quality. At MOPA Motorparts, we provide solutions that are particularly distinguished by their durability and performance, even under challenging operating conditions.

THROTTLE VALVE - 88156070001 suitable for MAN D engines

THROTTLE VALVE - 88156070001 suitable for MAN D engines

Throttle Valve for MAN D EnginesDiscover the throttle valve with the comparison number 88156070001, which is suitable for MAN D engines. This OEM replacement part offers you the quality you can expect from a high-quality manufacturer. Weighing only 0.285 kg, the throttle valve is lightweight yet robust, making it ideal for your engines.

SAFETY VALVE - 88054056203 suitable for MAN D engines

SAFETY VALVE - 88054056203 suitable for MAN D engines

Safety valve suitable for MAN D engines – Reliable ProtectionDiscover our safety valve, designed as an OEM replacement part and specifically tailored for MAN D engines. With the comparison number 88054056203, this product offers an effective safety solution for your diesel or gas engines. Its lightweight design of only 0.275 kg makes it ideal for various applications and ensures smooth operation of your machines.OEM replacement parts of the highest qualityThis safety valve is an OEM replacement part that meets the high standards of the industry. By integrating a product with the comparison number 88054056203 into your systems, you ensure durability and efficiency. The precise fit of the valve optimizes the performance of your engines, while experienced users benefit from competitive prices.

EXHAUST VALVE - 88041010233 suitable for MAN D engines

EXHAUST VALVE - 88041010233 suitable for MAN D engines

Exhaust Valve with Comparison Number 88041010233Discover our exhaust valve with the comparison number 88041010233, which is optimally suited for MAN D engines. This product is a reliable OEM replacement part that meets the stringent standards of the manufacturer. Weighing only 0.16 kg, it combines robustness with a thoughtful design that is perfectly tailored for use in marine and stationary applications.Quality Control through Internal InspectionsOur OEM replacement parts undergo comprehensive internal inspections to ensure they meet the high demands of the industry. The exhaust valve, suitable for MAN D engines, has been carefully developed to provide maximum efficiency. Additionally, we offer products suitable for renowned manufacturers such as MWM, Mercedes-Benz, Deutz, Volvo, MTU, Bosch, and Detroit Diesel.

INLET VALVE - 88041010232 suitable for MAN D engines

INLET VALVE - 88041010232 suitable for MAN D engines

Premium Inlet Valve: Comparison Number 88041010232Discover our inlet valve, identified by the comparison number 88041010232, which perfectly fits MAN D engines. This product is part of the category valves and stands for optimal performance and reliability in your application. Weighing only 0.206 kg, it contributes to the efficiency and functionality of your system.

INLET VALVE - 88041010213 suitable for MAN D engines

INLET VALVE - 88041010213 suitable for MAN D engines

Reliable Product: Inlet Valve Comparison Number 88041010213The inlet valve with the comparison number 88041010213 offers you a reliable solution for your engine needs. It belongs to the category of valves and is compatible with various applications in marine and stationary use. This OEM spare part enables precise performance and long service life.

EXHAUST VALVE - 88041010212 suitable for MAN D engines

EXHAUST VALVE - 88041010212 suitable for MAN D engines

OEM Replacement Part for the Highest StandardsDiscover the exhaust valve with the comparison number 88041010212, an essential OEM replacement part for MAN D Engines. This product is perfectly suited to optimize the performance of your engines. With a lightweight of only 0.21 kg, it impresses with durability and outstanding fit.Precision and ReliabilityThe exhaust valve meets the highest quality standards and is designed for MAN D Engines. It is a component that meets the demands of modern engine technology, particularly in marine and stationary applications. Rely on the precision and reliability of this OEM replacement part to keep your engines running efficiently.

EXHAUST VALVE - 88041010203 suitable for MAN D engines

EXHAUST VALVE - 88041010203 suitable for MAN D engines

Efficient Exhaust Valve Suitable for MAN D Engines Discover our product, the exhaust valve with the reference number 88041010203, which is ideally suited for MAN D engines. This OEM replacement part offers you not only high efficiency but also reliable performance in demanding applications. Weighing 0.21 kg, this component impresses with excellent properties and a long lifespan.Quality of OEM Replacement Parts The exhaust valve, suitable for MAN D engines, belongs to the article group of valves and plays a central role in the engine's function. Its design allows for effective regulation of the exhaust flow. As a provider of OEM replacement parts, we ensure that all products meet the highest standards and are well-suited for long-term use in your engines.

EXHAUST VALVE - 88041010008 suitable for MAN D engines

EXHAUST VALVE - 88041010008 suitable for MAN D engines

Exhaust valve suitable for MAN D enginesDiscover our exhaust valve with the comparison number 88041010008, specifically designed for MAN D engines. This product belongs to the article group "Valves" and combines quality and precision. Weighing only 0.28 kg, this replacement part is a must-have for any application, whether in marine or stationary engines as well as locomotives.

INLET VALVE - 88041010007 suitable for MAN D engines

INLET VALVE - 88041010007 suitable for MAN D engines

Excellent Inlet Valve: Comparison Number 88041010007Discover the inlet valve with comparison number 88041010007, an essential OEM replacement part for your engines. This product is indispensable for the performance and efficiency of your machines. Weighing 0.37 kg, the inlet valve offers an ideal combination of stability and user-friendliness.

INLET VALVE - 88041010004 suitable for MAN D engines

INLET VALVE - 88041010004 suitable for MAN D engines

Efficient Inlet Valve with Comparison Number 88041010004Our inlet valve with the comparison number 88041010004 is a top-quality OEM spare part, suitable for MAN D engines. Weighing only 0.3 kg, it offers an ideal combination of lightness and functionality. This component ensures that your engines operate optimally and is designed with the highest precision.Quality-Conscious Range for EnginesWe exclusively offer OEM spare parts that meet the highest standards. The inlet valve has been designed for MAN D engines to optimize operational performance and efficiency. Rely on our years of experience to maintain your engines reliably and extend their lifespan.

EXHAUST VALVE - 88041010003 suitable for MAN D engines

EXHAUST VALVE - 88041010003 suitable for MAN D engines

Efficient Exhaust Valve with Comparison Number 88041010003 Discover our exhaust valve, suitable for MAN D engines, with the comparison number 88041010003. This product is a crucial component for the performance of your engines in marine and stationary applications. Weighing only 0.13 kg, it combines lightness and robustness, making it ideal for demanding operations.Excellent Replacement Parts for Demanding Applications Our exhaust valve meets the strict quality standards of OEM replacement parts. This means it is made from specialized components and provides the reliability you can expect from a product. At MOPA Motorparts, we offer products that fit precisely to MAN D engines and ensure that all parts undergo rigorous internal controls.

OIL PRESSURE VALVE - 88016014201 suitable for MAN D engines

OIL PRESSURE VALVE - 88016014201 suitable for MAN D engines

Oil pressure valve suitable for MAN D enginesDiscover our oil pressure valve, designed to fit MAN D engines. With the comparison number 88016014201, this product offers top performance and reliability for your engine. As it belongs to our category of valves, it is the ideal choice for demanding applications in diesel and gas engines. Weighing only 0.005 kg, this OEM replacement part impresses with its lightness and robust functionality.

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5/2-WAY VALVE - 0029978336 suitable for MTU engines

5/2-WAY VALVE - 0029978336 suitable for MTU engines

Powerful 5/2-Way Valve for Your ApplicationsDiscover our 5/2-way valve (comparison number: 0029978336), which is considered an essential OEM spare part. This product is suitable for MTU engines and offers reliable performance. Weighing only 0.493 kg, it is easy to integrate and optimally supports the efficiency of your engine applications.

Sale price: €594.57Regular price:€660.63(10% saved)
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DELIVERY VALVE - 8691800019 suitable for MTU engines

DELIVERY VALVE - 8691800019 suitable for MTU engines

Delivery valve with comparison number 8691800019 Discover our delivery valve, comparison number 8691800019, which is perfectly suitable for MTU engines. This OEM replacement part meets the highest quality standards and ensures reliable performance in demanding applications.Efficient fit for your needs The delivery valve is designed for MTU engines and belongs to the group of valves. This combination ensures that all engines in marine and stationary applications operate efficiently and last longer.

Sale price: €1,511.08Regular price:€1,678.98(10% saved)
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CONTROL SLIDE - 2-SA062621/2.5.7-79 suitable for MTU engines

CONTROL SLIDE - 2-SA062621/2.5.7-79 suitable for MTU engines

CONTROL SLIDE with the comparison number 2-SA062621/2.5.7-79 suitable for MTU engines

Sale price: €936.00Regular price:€1,040.00(10% saved)
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SOLENOID VALVE - 3413371602 suitable for Bosch engines

SOLENOID VALVE - 3413371602 suitable for Bosch engines

SOLENOID VALVE with the comparison number 3413371602 suitable for Bosch engines

Sale price: €702.00Regular price:€780.00(10% saved)
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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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