
Global Komatsu Fuel System Solutions: Growshine International – Your Trusted Partner for Heavy Equipment Spares (July 9, 2025)

At Growshine International, we understand the critical role that reliable spare parts play in keeping your machinery operational and efficient. As a leading global import and export trade company, we specialize in providing high-quality construction machinery parts, heavy truck parts, agricultural machinery parts, and auto parts. Our extensive inventory includes a wide array of genuine Komatsu parts, ensuring your equipment performs at its best. Whether you are searching for a Komatsu fuel injector, a robust Komatsu cylinder head, or essential Komatsu engine components, Growshine International is your trusted partner.
Komatsu Parts: Essential Components for Peak Performance
Maintaining the efficiency and longevity of your Komatsu heavy equipment requires access to top-tier replacement parts. We offer a comprehensive selection of Komatsu spare parts designed to meet rigorous standards. Below is a detailed list of some of the Komatsu genuine parts and Komatsu aftermarket parts we supply:
| No. | English Name | Komatsu Part Number |
|---|---|---|
| 1. | Fuel Injector | 6745-11-3102, 6745113102 |
| 2. | Connector | 6745-71-5541, 6745715541 |
| 3. | Gasket Kit | 4089978 |
| 4. | Repair Kit | 4089759 |
| 5. | Cylinder Head | 6745-11-1190, 6745111190 |
| 6. | Valve Cover Gasket | 6745-11-8170, 6745118170 |
| 7. | Seal | 6745-11-8160, 6745118160 |
| 8. | Turbocharger | 67445-81-8080, 67445818080 |
| 9. | Gasket | 6745-11-7811, 6745117811 |
| 10. | Rocker Arm | 6745-41-5402, 6745415402 |
| 11. | Rocker Arm | 6745-41-5202, 6745415202 |
| 12. | Cylinder Liner | 6745-01-5620, 6745015620 |
| 13. | Seal | 6242-01-1520, 6242011520 |
| 14. | Bushings | 6746-21-1410, 6746211410 |
| 15. | Oil Seal | 6742-1-0550, 674210550 |
| 16. | Oil Seal | 6732-21-3220, 6732213220 |
| 17. | Rocker | 6745-41-2100, 6745412100 |
| 18. | Main Bearings | 6745-31-1120, 6745311120 |
| 19. | Connecting Rod Bearings | 6743-31-3210, 6743313210 |
| 20. | Piston Group Assembly | 6745-31-2150, 6745312150 |
| 21. | Piston Ring | 6746-31-2020, 6746312020 |
| 22. | Camshaft | 6745-41-1110, 6745411110 |
| 23. | Fuel Tube | 6745-71-4150, 6745714150 |
| 24. | Fuel Tube | 6745-71-4111, 6745714111 |
| 25. | Fuel Tube | 6745-72-4210, 6745724210 |
| 26. | Fuel Tube | 6745-4141, 67454141 |
| 27. | Sensor | 6754-1212, 67541212 |
| 28. | Sensor | 6745-71-4330, 6745714330 |
| 29. | Connector | 6754-71-4330, 6754714330 |
| 30. | Pump | 6745-71-1150, 6745711150 |
| 31. | Fuel Injector | 6745-11-3102, 6745113102 |
| 32. | Thermostat | 6745-61-1111, 6745611111 |
| 33. | Water Pump | 6743-61-1532, 6743611532 |
| 34. | Pulley | 6754-61-4120, 6754614120 |
| 35. | Belt | 6741-61-1621, 6741611621 |
| 36. | Alternator | 600-861-6111, 6008616111 |
| 37. | Starter | 600-863-5712, 6008635712 |
| 38. | Fuel Rail | 6271-81-2981, 6271812981 |
Understanding Your Parts: Key Component Explanations
To help you better understand the critical engine components and machinery parts, here are some essential definitions:
Fuel Injector: A critical component of the fuel system that atomizes fuel and sprays it into the engine's combustion chamber.
Example: Komatsu PC200-8 Excavator Fuel Injector (Комацу PC200-8 Экскаватор Топливная форсунка / Комацу PC200-8 Екскаватор Паливна форсунка).Cylinder Head: The part of the engine that sits above the cylinders, forming the combustion chambers. It houses the valves and spark plugs/injectors.
Example: Caterpillar 320D Excavator Cylinder Head (Катерпиллер 320D Экскаватор Головка блока цилиндров / Катерпіллер 320D Екскаватор Головка блоку циліндрів).Turbocharger: A forced induction device that increases an internal combustion engine's power output by forcing extra air into the combustion chamber. It's usually mounted on the engine's exhaust manifold.
Example: Volvo EC480D Excavator Turbocharger (Вольво EC480D Экскаватор Турбокомпрессор / Вольво EC480D Екскаватор Турбокомпресор).Rocker Arm: Part of the valve train in an internal combustion engine, converting the upward movement of the pushrod (or direct action from the camshaft) into the downward movement of the valve. Located in the cylinder head.
Example: Cummins ISX Engine Rocker Arm (Камминз ISX Двигатель Коромысло / Каммінс ISX Двигун Коромисло).Cylinder Liner: A cylindrical part installed in the engine block to form a cylinder. It provides a wear-resistant surface for the piston to slide against.
Example: Deutz TCD 2013 Engine Cylinder Liner (Дойц TCD 2013 Двигатель Гильза цилиндра / Дойц TCD 2013 Двигун Гільза циліндра).Main Bearings: Bearings that support the crankshaft within the engine block, allowing it to rotate smoothly. Located in the engine block.
Example: John Deere 6068 Engine Main Bearings (Джон Дир 6068 Двигатель Коренные подшипники / Джон Дір 6068 Двигун Коренні підшипники).Connecting Rod Bearings: Bearings that connect the connecting rod to the crankshaft, facilitating the transfer of power from the piston to the crankshaft. Located in the connecting rod.
Example: Mack MP8 Engine Connecting Rod Bearings (Мак MP8 Двигатель Шатунные подшипники / Мак MP8 Двигун Шатунні підшипники).Camshaft: A shaft in an internal combustion engine that controls the opening and closing of the intake and exhaust valves. Located in the engine block or cylinder head.
Example: Mercedes-Benz OM457 Engine Camshaft (Мерседес-Бенц OM457 Двигатель Распредвал / Мерседес-Бенц OM457 Двигун Розподільний вал).Water Pump: Circulates coolant through the engine's cooling system to dissipate heat. Mounted on the engine block.
Example: Kubota V2203 Engine Water Pump (Кубота V2203 Двигатель Водяной насос / Кубота V2203 Двигун Водяний насос).Alternator: Generates electrical power for the vehicle's electrical system and recharges the battery. Usually belt-driven by the engine.
Example: Scania R450 Truck Alternator (Скания R450 Грузовик Генератор / Сканія R450 Вантажівка Генератор).
Growshine International: Your Partner in Global Parts Supply Chain
Growshine International prides itself on being a premier provider of heavy equipment spares. Our business encompasses the import and export of a vast range of products, including Komatsu excavator parts, Komatsu dozer parts, and Komatsu wheel loader parts. We are dedicated to delivering not only genuine Komatsu parts but also high-quality Komatsu aftermarket solutions to meet diverse customer needs and budgets.
Our commitment extends beyond just parts. We offer a holistic approach to your machinery maintenance needs, including hydraulic parts, undercarriage parts, electrical parts, filters, pumps, shafts, bearings, seals, gears, and valves. We are a reliable machinery parts wholesaler and industrial parts supplier, ensuring global parts supply and efficient logistics solutions.
Common Questions & Solutions
Here are some frequently asked questions and practical solutions related to heavy machinery maintenance:
Why is my excavator's hydraulic system overheating?
Overheating can be caused by low hydraulic fluid levels, clogged filters, worn pumps, or a faulty cooling fan. Regularly check fluid levels, replace filters as per manufacturer's recommendations, and inspect pumps and fans for wear or damage.How often should I replace engine oil in my heavy truck?
Engine oil change intervals vary depending on the truck model, engine type, and operating conditions. Always refer to your truck's owner's manual for specific recommendations. Using high-quality oil and filters can extend these intervals.What are the signs of a failing turbocharger in my agricultural tractor?
Symptoms include reduced engine power, excessive exhaust smoke (especially blue or black), whining noises from the turbo, and increased oil consumption. If you notice these signs, it's crucial to have the turbocharger inspected promptly to prevent further engine damage.
Troubleshooting: Komatsu PC300-7 Excavator Engine Overheating
Problem: Your Komatsu PC300-7 excavator engine is consistently overheating, leading to shutdowns or reduced performance.
Possible Causes & Solutions:
Low Coolant Level or Leaks: Check the coolant reservoir and radiator. Top up if low. Inspect all hoses, radiator, and water pump for visible leaks. A pressure test can identify hidden leaks.
Solution: Refill with correct coolant mixture. Replace any cracked hoses or a faulty Komatsu PC300-7 Water Pump (6743-61-1532, 6743611532).
Clogged Radiator or Cooler Fins: Dirt, debris, or mud can accumulate on the radiator and oil cooler fins, blocking airflow and reducing cooling efficiency.
Solution: Clean the radiator and coolers thoroughly with compressed air or a pressure washer (being careful not to damage the fins). Ensure proper airflow around the engine compartment.
Faulty Thermostat: A stuck-closed thermostat prevents coolant from circulating to the radiator, causing the engine to overheat.
Solution: Test the thermostat by placing it in hot water to see if it opens. If not, replace with a genuine Komatsu PC300-7 Thermostat (6745-61-1111, 6745611111).
Worn Water Pump: An inefficient water pump might not circulate coolant effectively. Signs include leaks around the pump shaft or unusual noises.
Solution: Inspect the Komatsu PC300-7 Water Pump (6743-61-1532, 6743611532) for signs of wear or failure. Replace if necessary.
Fan Belt Issues: A loose, worn, or broken fan belt will prevent the cooling fan from operating at full capacity, leading to poor cooling.
Solution: Check the tension and condition of the Komatsu PC300-7 Fan Belt (6741-61-1621, 6741611621). Adjust tension or replace the belt if it's worn or cracked.
Contaminated Oil: If engine oil is severely degraded or contaminated, it can contribute to overheating due to increased friction.
Solution: Perform an oil and filter change using recommended Komatsu engine oil and Komatsu oil filters.
Always consult a qualified technician for complex repairs and use genuine Komatsu parts for optimal performance and safety.