Core functions and importance
The Mitsubishi S4S diesel engine assembly is the core power source of the engine, integrating multiple key components. Its performance is directly related to the entire power system:
Power output reliability: Ensure continuous and stable power transmission, suitable for various heavy equipment
Fuel efficiency optimization: Advanced combustion chamber design (direct injection combustion chamber) offers higher fuel efficiency
Emission control: Meets Euro III emission standards and has excellent environmental protection performance
Compatibility guarantee: Specifically designed for Mitsubishi S4S series engines, it perfectly matches without the need for additional adjustments
Highlights of technical specifications
Based on the technical characteristics of the Mitsubishi S4S diesel engine, this assembly may include the following technical parameters:
Specific specifications of parameter categories
Engine type 4: Circulating water-cooled in-line diesel engine
The number of cylinders is 4
Maintenance and Care guide
Proper maintenance can significantly extend the service life of diesel engine assemblies and maintain optimal performance:
Daily inspection: Regularly check the oil level and quality to ensure the normal operation of the lubrication system. Check the coolant level to prevent the engine from overheating.
Fuel system maintenance: Use high-quality diesel (ASTM No.2-D), and replace the fuel filter regularly to prevent impurities from damaging the high-pressure fuel pump and injectors.
Air filtration system: Regularly clean and replace the air filter, especially in high-dust environments, to prevent premature wear.
Cooling system maintenance: Regularly inspect the water pump, radiator and coolant to ensure that the engine operates at an appropriate temperature.
Maintenance priorities in different usage scenarios:
Key inspection frequencies for application scenario maintenance
Forklift power should focus on the wear of the engine caused by frequent starts and stops, and strengthen the maintenance of the lubrication system every 250 working hours
The cooling system and oil condition monitoring of the generator set during continuous operation should be conducted once a month
Strengthen the maintenance of air filters and fuel filters for construction machinery to adapt to high-dust environments every 120 working hours
Anti-corrosion treatment for ship power and maintenance of the cooling system should be carried out every two weeks
Frequently Asked Questions
Q1: Under what circumstances is it necessary to consider replacing the diesel engine assembly?
A: When the engine experiences severe oil burning (abnormal increase in oil consumption), a significant drop in power (which cannot be restored through adjustment), abnormal knocking sounds (which may indicate wear of the crankshaft connecting rod mechanism), or insufficient compression pressure, it may be necessary to replace the entire assembly. For multi-cylinder engines, if multiple cylinders experience severe wear simultaneously, replacing the assembly is often more economical than repairing them individually.
Q2: What should be noted after replacing the diesel engine assembly?
A: After replacement, it is essential to carry out appropriate running-in operations: Avoid full-load operation during the initial stage and gradually increase the load. At the same time, closely monitor parameters such as oil pressure and coolant temperature to ensure the normal operation of all systems. After the first operation, the sealing of all connection parts should be checked, and the first oil and filter replacement should be carried out at the prescribed time.
Q3: How to distinguish original factory assemblies from reliable alternatives?
A: Original factory assemblies usually have clear original packaging and markings, with finely processed surfaces of components and uniform materials. Reliable quality substitutes should have clear manufacturer information and complete quality inspection reports. It is recommended to ask suppliers to provide material certificates and durability test data to avoid using counterfeits without any quality guarantee.
Procurement suggestions and channel selection
For the purchase of the Mitsubishi 32A89-61600 diesel engine assembly, it is necessary to choose a supplier with a good reputation. We recommend purchasing the Mitsubishi 32A89-61600 diesel engine assembly from Ningbo Qiuning Company. They offer genuine and original factory accessories to ensure quality and performance. For customers with limited budgets, we can also offer economical spare parts that have been tested in practice as alternative solutions. These economical spare parts are not brand-authorized products, but they can still provide reliable performance. When making a purchase, please weigh the performance and budget based on your actual needs.
Choose our advantages
Quality Assurance: We ensure that every product undergoes strict testing, and the original factory parts are guaranteed to be fully compatible with your Mitsubishi engine.
Professional technical support: We offer installation guidance and technical consultation to help you solve various problems related to diesel engine systems.
Flexible solutions: Offer genuine products and proven economical alternatives to meet the needs of different budgets.
Fast supply: Abundant inventory, prompt response, and reduced downtime of your equipment.
Contact information
Welcome to contact us at any time for product details, technical consultation and quotations
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Wechat /WhatsApp/ Phone: +8615888032469
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Email: allen@perkins-rx.com
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Website: http://www.cnqn.net/
Our professional team can provide you with comprehensive technical support, from product selection to installation guidance, to ensure that your Mitsubishi diesel engine always remains in the best working condition. We understand the impact of heavy equipment downtime on your business, and therefore are committed to providing fast and reliable solutions.
日本三菱Mitsubishi柴油发电机常见型号配件及柴油机过滤器：8DC7、8DC8、8DC9、8DC11、10DC、S4E、S4E2、S4Q2、S4S-T、S4K-T、4DQ5、ADQ7、4DR5、4G15、4G32、4G33、4G41、S6K、S6E、S6S、6D15C、6D16、6D16-T、6D22-T、6D22-TC、6D24、6DR5、S6B-PTA1、S6B-PTA2、S6B3-PTA、S6A-PTAA、S6A3-PTAA、S6R-PTA-S、S6R2-PTA、S6R2-PTA、S12H-PTA、S12R-PTA-S、S12R-PTA2、S12R-PTAA2-S、S16R-PTA、S16R-PTA2、S12R-PTAA2-S.
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Mitsubishi S12R-PTA， S12R-PTA2，S12R-PTAA2 Engine spare parts
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Number
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Part description
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P/N
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1
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Ring group, piston
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37517-10010
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2
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Cylinder liner, cylinder
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37507-82600
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3
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O-ring, cylinder liner
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37507-32400
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O-ring, cylinder liner
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37107-04201
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O-ring, cylinder liner
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37107-04300
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4
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piston
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37517-30101,37517-17700
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5
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Sales, piston
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37517-18100
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6
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Gasket kit, major overhaul
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37794-90270
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7
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Gasket, cylinder head
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37501-12200
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8
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Seals, oil
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37511-04300
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9
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Seals, oil
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37711-04300
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10
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intake valve
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37504-40200
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11
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Guidance, intake valve
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37101-10600
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12
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Valve seat, intake valve
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37501-13100
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13
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exhaust valve
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37504-40200
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14
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Guide rail, exhaust valve
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37101-10600
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15
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Valve seat, exhaust valve
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37501-13100
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16
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Bearing group, main bearing (standard)
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37709-12010
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Bearing group, main (0.25)
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37709-12020
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Bearing assembly, main (0.50)
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37709-12030
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Bearing group, main (0.75)
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37709-12040
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Bearing assembly, main engine (1.00)
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37709-12050
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17
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Bearings, connecting rods (standard)
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37519-13100
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Bearings, connecting rods (0.25)
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37519-13200
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Bearings, connecting rods (0.50)
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37519-13300
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Bearings, connecting rods (0.75)
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37519-13400
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Bearings, connecting rods (1.00)
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37519-13500
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18
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Bearings, thrust (standard)
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37709-28100
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Bearing, thrust (0.25)
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37709-28200
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Bearing, thrust (0.50)
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37709-28300
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Bearing, thrust (0.75)
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37709-28400
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19
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Starter Big Butt
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37766-20201
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20
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Cylinder Head Assembly
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37501-80050
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21
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AC generator
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04343-38000
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22
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Water pump assembly, water
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37545-80011,37745-60011
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23
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Tip assembly, nozzle
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37560-17500,37560-17700,
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37561-17500
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24
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Nozzle assembly
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37560-39002,37560-22012
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25
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Pump, feed
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04245-01120
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26
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Pump assembly injection
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48273-00005,48274-00005,
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PS6-HL-50，PS6-HR-50;
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48A50-08005，48A60-08005，
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27
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speed controller
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04410-53100，XS-400B-03
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28
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Governor actuator
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04410-32011，SG4017BR-01
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29
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Turbocharger
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49182-03471,49182-03481,
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49182-03880,49182-03890,
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49182-03821,49182-03830
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30
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DC solenoid valve
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04400-08801,04400-08901
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04400-09201
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WOODWARD 2370-24ESU1B5S
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31
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Pump assembly oil
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37735-00031
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32
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Nozzle assembly
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37560-39002,37560-22012
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33
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Triangle belt, AC generator
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37768-04200
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34
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Oil element, full flow rate
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37540-11100
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35
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Oil element, bass
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37540-02100
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36
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Fuel element
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32562-60300
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37
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Cleaning agent components, air
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47220-39802,47220-47800
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