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BIG END BUSH in Engine Drive Components

Engine drive components form the backbone of every power unit, converting combustion energy into reliable, controllable torque. As an article category, Engine drive components include the parts that transmit and stabilize loads between the piston, connecting rod, crankshaft, and the driven equipment. Bearings, bushings, couplings, gear trains, and vibration dampers work together to keep forces aligned, friction minimized, and motion precise—under continuous thermal and mechanical stress.

Within this system, the BIG END BUSH is a pivotal element. It supports the crankpin interface at the connecting rod’s big end and enables smooth rotation on a thin, pressurized oil film. In a marine engine or high-output diesel engine, this plain bearing has to tolerate high mean effective pressures, cyclic loads, and fluctuating temperatures while protecting both the connecting rod and crankshaft from wear. As a result, Engine drive components—and especially the BIG END BUSH—are decisive for performance, efficiency, and operational safety.

Technical function of Engine drive components and the BIG END BUSH in a diesel engine

Engine drive components orchestrate the conversion of reciprocating motion into rotary output. The piston transfers force to the connecting rod; the rod’s BIG END BUSH rides on the crankpin, and the crankshaft translates the linear thrust into rotation. Surrounding parts—main bearings, thrust elements, couplings, and torsional dampers—ensure alignment, absorb shocks, and manage torsional vibration. When designed and maintained correctly, this chain of parts minimizes energy losses and heat generation, supports high specific loads, and ensures stable lubrication even at low speeds and high cylinder pressures typical of marine and stationary gas engines.

The BIG END BUSH for a diesel engine operates under hydrodynamic lubrication. Correct radial clearance allows an oil wedge to form as the journal rotates, separating metal surfaces and carrying load on a pressurized film. Material architecture is critical: tri‑metal or bi‑metal bearing systems with a steel backing, intermediate layer, and soft overlay balance fatigue strength, embeddability, and seizure resistance. Oil grooves and holes are precisely placed to sustain film integrity across the load zone, while the bush’s crush and interference fit stabilize heat transfer and prevent spin. In a marine engine, the BIG END BUSH must also resist corrosive environments, start‑stop cycles, and long service intervals; in this context, BIG END BUSH OEM parts optimized for the application secure dependable lubrication at both idle and full load.

  • · Precise torque transmission from piston to crankshaft.
  • · Hydrodynamic oil film stability under high cyclical loads.
  • · Low friction and controlled wear through advanced bearing layers.
  • · Tight clearances for hot/cold running conditions.
  • · Resistance to cavitation, fretting, and corrosion.
  • · Effective heat dissipation from bearing to connecting rod.
  • · Compatibility with diesel and gas engine duty cycles.
  • · Measurable performance via oil pressure, temperature, and vibration trends.

Hydrodynamic behavior of a BIG END BUSH in a marine engine

At operating speed, the crankpin drags oil into a converging gap, building pressure that centers the journal. If clearance is too tight, the oil film collapses and heat escalates; if too loose, peak film pressure drops and the journal contacts the overlay. Proper bush geometry, sphericity, and surface finish sustain film thickness through reversal and top-dead-center load spikes. This precise interplay is why the BIG END BUSH is central to both mechanical efficiency and bearing life in demanding marine and power‑generation settings.

Why Engine drive components—especially the BIG END BUSH—are critical for reliability

Durable Engine drive components protect the most expensive assets in a powertrain: the crankshaft and connecting rods. When a BIG END BUSH wears past limits, symptoms cascade quickly—elevated bearing metal in oil analysis, rising bearing temperature, reduced oil pressure margin, and audible knock under load. Continued operation can lead to overlay fatigue, lining delamination, ovality, scoring of the crankpin, and ultimately seizure. The knock‑on effects include unplanned downtime, major overhauls, and potential secondary damage to pistons, liners, or gear trains.

Conversely, a healthy BIG END BUSH maintains alignment, smooths torque delivery, and lowers frictional losses. It protects oil quality by reducing debris generation, supports consistent fuel consumption, and stabilizes emissions by keeping combustion timing predictable. For fleet owners and plant operators, that translates into higher availability and longer overhaul intervals—key metrics for lifecycle cost control.

Advantages of OEM spare parts suitable for Engine drive components and the BIG END BUSH

Choosing OEM spare parts suitable for Engine drive components delivers measurable value from day one of installation. These parts are engineered for the exact crankpin diameter, bearing crush, oil groove geometry, and overlay thickness specified by the engine maker—ensuring the oil film forms as designed across the entire duty range. For a BIG END BUSH, this means proven metallurgy, controlled porosity, and consistent hardness that resist fatigue at high mean effective pressure.

Beyond fit and metallurgy, OEM spare parts suitable for a BIG END BUSH and related components offer predictable installation and performance outcomes. Machining tolerances, edge chamfers, and bore alignment are held tightly, reducing time spent on blue‑printing, line‑boring, or trial fitting. Traceable production and batch consistency support confident maintenance planning across multi‑engine fleets.

Why OEM spare parts suitable for the BIG END BUSH and Engine drive components make sense:

  • · Exact clearances and geometry for stable hydrodynamic lubrication.
  • · Verified material systems for fatigue strength and seizure resistance.
  • · Consistent surface finish and overlay thickness for low friction.
  • · Faster, risk‑reduced installation with predictable crush and fit.
  • · Documented traceability to support compliance and audits.
  • · Longer service life and optimized total cost of ownership.

MOPA: your partner for OEM spare parts BIG END BUSH and Engine drive components

MOPA supplies OEM spare parts suitable for Engine drive components across leading diesel and gas engine platforms—covering the BIG END BUSH, main bearings, thrust elements, couplings, and more. Customers benefit from fast response, stringent quality control, and secure global logistics that keep vessels and plants on schedule. From marine engine operators to power‑generation sites, MOPA combines technical expertise with transparent processes to ensure you receive the right components, on time, with full part traceability.

Our team supports specification checks (dimensions, materials, clearances), cross‑references part numbers, and aligns deliveries with maintenance windows. With regional stock, export documentation support, and consolidated shipments, MOPA streamlines procurement while protecting your operational uptime.

Conclusion: BIG END BUSH and Engine drive components matter

Engine drive components determine how efficiently and safely an engine turns fuel into productive power, and the BIG END BUSH is a core element in that chain. Selecting OEM spare parts suitable for the BIG END BUSH and related components secures lubrication stability, reliability, and long service life—while safeguarding your budget through predictable performance.

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BIG END BUSH - 12029452 suitable for MWM & Deutz engines
Essential Small End Bush for Efficient EnginesDiscover the small end bush with the comparison number 12029452 – an essential OEM spare part for efficient engine operation. This small end bush is suitable for MWM & Deutz engines of models 602 and 604 DIESEL. It ensures a reliable connection and secures optimal performance of our engine types. Its excellent construction is crucial for smooth operation.
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€105.53* €117.26*(10% saved)
BIG END BUSH - 12185002 suitable for MWM & Deutz engines
Versatile Small End Bush 12185002The small end bush with the comparison number 12185002 is an essential product for high-performance engines. This OEM spare part stands out due to its high quality and durability, making it perfect for demanding applications. With optimal fit, the small end bush is crucial for the smooth operation of your machines.
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BIG END BUSH - 360104310014 suitable for MWM & Deutz engines
Maximum Efficiency: Small End Bush for Engine SystemsThe small end bush with the comparison number 360104310014 is an indispensable OEM replacement part in the fields of marine and stationary engines. This product is suitable for MWM & Deutz engines and ensures that the performance and efficiency of your engines are maintained. MOPA Motorparts relies on top-quality materials and craftsmanship to optimize the durability and performance of the engines.
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€105.53* €117.26*(10% saved)
SMALL END BUSH - 85000011339 suitable for MAN D engines
SMALL END BUSH with the comparison number 85000011339 suitable for MAN D engines
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BIG END BUSH - 12171247 suitable for MWM & Deutz engines
Small End Bush with Comparison Number 12171247Discover the small end bush with comparison number 12171247, an essential OEM replacement part for your engine applications. This product is specifically designed and suitable for use in various areas. With an optimal fit, the small end bush is ideally compatible with MWM & Deutz engines of the series 441 and the engine types TBD441. Rely on dependable performance and quality in your engine operation.
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€466.83* €518.70*(10% saved)
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BIG END BUSH - 02108088 suitable for Deutz engines
Custom Small End Bush for Engines Discover the small end bush with the comparison number 02108088 – an essential engine drive component precisely tailored to meet the requirements suitable for Deutz engines. Weighing only 0.028 kg, this product impresses with a thoughtful design that significantly supports the performance and lifespan of your drive system.
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€7.00* €7.77*(10% saved)
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BIG END BUSH - 02138563 suitable for Deutz engines
Compact Small End Bush for Engine ApplicationsDiscover the small end bush with the comparison number 02138563 – an essential OEM replacement part specifically designed for engine performance. Our small end bush ensures optimal connection in machine mechanics and is key to smooth engine operation.
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€4.91* €5.46*(10% saved)
BIG END BUSH - 03305471 suitable for MWM & Deutz engines
Product Description of the Small End BushThe small end bush with the comparison number 03305471 is an essential product within the engine drive components. It offers outstanding performance and thus constitutes the ideal choice for maintenance and repair work on high-performance engines. As an OEM replacement part, it meets the highest standards and supports the longevity of your engines.
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SMALL END BEARING - 02153244 suitable for MWM & Deutz engines
Perfect Small End Bush Suitable for MWM & Deutz EnginesDiscover the excellent small end bush, an essential component for your applications. With the comparison number 02153244, this product is ideally suited for use in engines of the series 816, including engine types such as BA6M816, BA8M816, BAM816, and SBA12M816. Enhance the performance of your systems and neutralize potential safety-related deficiencies with this essential component that can be seamlessly integrated.
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€10.24* €11.38*(10% saved)
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BIG END BUSH - 03358824 suitable for Deutz engines
Efficient Small End Bush – Compare 03358824!The small end bush with the comparison number 03358824 is an essential OEM replacement part suitable for the reliable operation of engines. With its precise fit and manufacturing to high standards, it ensures that your engine operates smoothly. The dimensions of the product, measuring 4.8 cm in length and width and 3.9 cm in height, ensure that this component can be ideally integrated into your system.Suitable for Deutz Engines – Precise SolutionsThis product is suitable for Deutz engines of the series 413, particularly for the type F5L413FR. As an OEM replacement part, it offers the quality you can expect from purchases of this kind. Our small end bush supports optimal functionality and durability. With regular use, it contributes to the stability and lifespan of the engines, which is particularly important in challenging operations.
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€15.21* €16.90*(10% saved)
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BIG END BUSH - 12851470 suitable for Deutz engines
Precision Component – Small End Bush Discover our Small End Bush, an essential OEM replacement part with the comparison number 12851470. This precisely manufactured product is designed for use in demanding environments and ensures the reliable function of your engines. Weighing only 0.016 kg, it is particularly lightweight yet robust and durable.Professional Quality for Deutz Engines Our Small End Bush is suitable for Deutz engines and combines the advantages of OEM replacement parts with the high quality you expect from us. It ensures optimal performance of your equipment and minimizes maintenance effort. Count on an OEM replacement part that is tailored to the design and performance of Deutz and stands up to your original component.
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€10.65* €11.83*(10% saved)
BIG END BUSH - 03376070 suitable for MWM & Deutz engines
Precise Performance: The Small End Bush 03376070The MOPA Motorparts small end bush (comparison number: 03376070) offers a top-notch solution for engine applications. This quality product impresses with its precise fit and is specifically designed to deliver optimal performance in engines compatible with MWM & Deutz engines. Whether diesel or gas variant, the small end bush ensures longevity and maximum efficiency.Take Advantage of OEM Spare Parts AvailabilityThanks to our large inventory, we always have an extensive selection of OEM spare parts, including this small end bush. The component (comparison number: 03376070) is ideally suited to minimize downtime. We are available for quick access.
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SMALL END BUSH - 12184147 suitable for MWM & Deutz engines
Small end bush: Comparison number 12184147The small end bush with the comparison number 12184147 is an important OEM replacement part specifically designed for engines used in marine and stationary applications. This small end bush ensures top-notch power transmission, thereby contributing to the efficiency of the engines. Thanks to its precise design, the small end bush provides optimal performance and longevity, which are essential for your engine technology requirements as well as reliability.
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€678.60* €754.00*(10% saved)
BIG END BUSH - 51024051010 suitable for MAN D-engines
Robust Small End Bush: Comparison Number 51024051010The small end bush with the comparison number 51024051010 is an indispensable OEM replacement part designed specifically for engines. This small end bush belongs to the article group of engine drive components and is suitable for MAN D engines. With a weight of only 0.07 kg, the product can be effortlessly installed and provides a durable solution.Quality through OEM Replacement PartsWhen choosing replacement parts, OEM replacement parts are the best choice to ensure functional excellence. Our products are specifically designed for MAN D engines while supporting use in demanding environments through robust materials.
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BIG END BUSH - 03371612 suitable for Deutz engines
Optimally Machined Small End Bush – Comparison Number 03371612The small end bush with the comparison number 03371612 is an indispensable OEM replacement part for your engine applications. This product ensures that your machines operate smoothly. Its exact fit makes it an ideal choice for various engines. The specifications of the bush also support long-term and reliable use.Suitable for Deutz EnginesThis small end bush is specifically suitable for Deutz engines and related series such as 912 and 913. Our bush fits important engine types including BF6L913C, F4L912, and F6L912. This ensures that this OEM replacement part provides optimal operation for your engines. With a weight of only 0.045 kg and compact dimensions – 3.8 cm in length and width, 4 cm in height – it facilitates any installation.
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€4.27* €4.75*(10% saved)
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BIG END BUSH - 12343081 suitable for MWM & Deutz engines
Optimal Small End Bush with Comparison Number 12343081Experience the top-notch small end bush with comparison number 12343081, an OEM replacement part that is perfectly suited for your engine's performance. This small end bush ensures a reliable connection in engines. Its precision and manufacturing quality make it an ideal choice for demanding applications in marine and stationary use.
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€29.84* €33.15*(10% saved)
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BIG END BUSH - 51024051011 suitable for MAN D-engines
Precise Product Description: Small End Bush Discover the Small End Bush, an essential product compatible with MAN D engines. With the comparison number 51024051011, this component represents a crucial part in the Engine drive components category. Its lightweight design of only 0.06 kg ensures that this OEM replacement part can be integrated effortlessly and offers exceptional durability.Advantages of OEM Replacement PartsThoroughly considered, the Small End Bush with comparison number 51024051011 provides the significant advantage of being developed as an OEM replacement part. Unlike aftermarket alternatives that can bring potential uncertainties in quality, this replacement part assures adherence to manufacturer standards. This means that fit accuracy is assured, and it promotes excellent performance of your engines.
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€23.27* €25.86*(10% saved)
BIG END BUSH - 02280090 suitable for MWM & Deutz engines
Efficient Replacement Part Suitable for MWM & Deutz Engines Choose the small end bush with the comparison number 02280090, an indispensable component specifically manufactured for MWM & Deutz engines. This high-performance part helps to optimize the functionality of engines and is ideally suited for use in marine and stationary applications.Reliable OEM Replacement Part for Long-lasting Performance This product is a replacement part known for its high quality. Suitable for MWM & Deutz engines, the small end bush meets the stringent requirements of professional applications and is tested in industrial environments.
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BIG END BUSH - 04112148 suitable for Deutz engines
Optimal Performance: Small end bush part number 04112148 Discover the OEM replacement part Small end bush, part number 04112148, ideally suited for high-performance Deutz engines. This engine drive component is your key to high operational reliability. Weighing only 0.03 kg, this product offers easy handling and installation, allowing you to be ready for use quickly.Reliability of OEM replacement parts The Small end bush impresses with all the features you expect from compelling OEM replacement parts. It is suitable for engines that require stability and durability. Standard testing confirms that all products are competitive, thereby reducing unexpected downtime.
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€6.69* €7.44*(10% saved)
BIG END BUSH - 03310667 suitable for MWM & Deutz engines
Reliable Small End Bush for EnginesOur small end bush with the comparison number 03310667 is an essential OEM replacement part specifically designed for use in diesel and gas engines. This product is the result of decades of expertise and ensures precise performance.Suitable for MWM & Deutz EnginesThe small end bush is suitable for MWM & Deutz engines and ensures that the engine runs smoothly and efficiently. Thanks to the high quality, you can rely on the long-term operation of your engines.
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SMALL END BUSH - 622604313014 suitable for MWM & Deutz engines
SMALL END BUSH with the comparison number 622604313014 suitable for MWM & Deutz engines
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€13.46* €14.95*(10% saved)
BIG END BUSH - 03352388 suitable for MWM & Deutz engines
Robust Replacement Part Compatible with MWM & Deutz EnginesDiscover the OEM replacement part, the small end bush with the comparison number 03352388. This product is crucial for the performance of your engines, ensuring they operate efficiently and reliably. The combination of precise manufacturing and a weight of 0.775 kg ensures a long lifespan that you need for your engines.
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BIG END BUSH - 623304310014 suitable for MWM & Deutz engines
Small end bush: Essential Replacement PartDiscover the small end bush with the comparison number 623304310014 – an indispensable product specifically designed for MWM & Deutz engines. This OEM replacement part enables optimal function and safety in operation. Weighing 0.123 kg, the small end bush also offers convenience during installation and handling.Efficient Solutions Suitable for MWM & Deutz EnginesThe small end bush is suitable for MWM & Deutz engines and impresses with its remarkable quality. As an OEM replacement part, it provides the precision you can expect when maintaining your engines. Rely on our decades of experience, which Webmechanik makes available to you in perfect measure.
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BIG END BUSH - 5610381150 suitable for MTU engines
Precision in Every Detail: Comparison Number 5610381150 Discover the quality of the small end bush with the comparison number 5610381150. This product impresses with precision and reliability and is specifically designed to harmonize optimally with MTU engines. Our products are OEM replacement components that meet the demands for performance and durability in marine and stationary applications.Optimal Use for Engines The small end bush is the key to efficient engine performance. Suitable for MTU engines, it ensures that every component functions seamlessly. At MOPA Motorparts, we ensure that all replacement components meet the highest standards so that your engine operates reliably at all times.
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€378.68* €420.76*(10% saved)