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Part Name: Revolution Speed Sensor
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Part No: 51-7579
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Applicable Models: CAT Excavator
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Delivery Options : Express freight / Standard (sea) Freight
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Condition/Options: New/ OEM replacement / Genuine original
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Warranty : 6 months
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MOQ : 1 Piece
Global Market Caterpillar Hydraulic Cylinder - Growshine International Supply - August 29, 2025
Need a Specific Part? We Can Help!
We offer custom manufacturing for a wide range of hydraulic components, including Caterpillar boom, arm, and bucket cylinders. If you need a part that's hard to find or requires unique specifications, we can produce it based on your drawings or samples.
Unleashing Peak Performance with Growshine International's Hydraulic Solutions
Welcome to Growshine International, your trusted partner for high-quality engineering machinery parts. We specialize in the import and export of a wide range of components for construction equipment, heavy trucks, agricultural machinery, and automobiles. Our commitment to excellence ensures that you get reliable parts that keep your machinery running smoothly, whether it's on a major construction site or a sprawling farm. Our product line includes everything from precision-engineered hydraulic cylinders to essential engine components, all designed for durability and performance. We proudly serve the global market with a focus on delivering value and exceptional service.
When it comes to the heart of your excavator's power, nothing is more critical than a reliable hydraulic system. That's why Growshine International offers a comprehensive inventory of Caterpillar hydraulic cylinders, including boom cylinders , arm cylinders , and bucket cylinders . These components are vital for the smooth operation and precise control of your excavator's attachments. We supply everything you need, from a Caterpillar 320D excavator arm, boom, and bucket cylinder to complete hydraulic assemblies. We understand the demands of the industry and provide both OEM and high-quality aftermarket solutions to meet your specific needs.
What is a Bucket Pin (斗轴)?: The bucket pin is a crucial part of an excavator's attachment system. It connects the bucket to the arm and the bucket cylinder, allowing for a full range of motion. For example, a Caterpillar 374F excavator bucket pin. (Русский: Палец ковша, Русский: Caterpillar 374F палец ковша).
Premium Caterpillar Hydraulic Cylinder Products from Growshine
At Growshine, we take pride in our extensive catalog of Caterpillar hydraulic cylinder parts. Our selection covers a wide range of models, ensuring you can find the exact component you need. From the popular CAT 320 series to the heavy-duty CAT 395, we have the hydraulic cylinders, seals, and pins to get your machine back in action. Our inventory includes original and high-quality replacement parts to guarantee perfect fit and function.
The hydraulic cylinders we offer are meticulously manufactured to withstand extreme pressure and harsh working conditions. For instance, the CAT 395 bucket cylinder part number 564-4933, 5644933 and its counterpart, the arm cylinder 564-4946, 5644946, are engineered for exceptional strength and longevity. We also provide essential seals and pins, such as the Caterpillar 395 bucket arm cylinder pin 5696064, a crucial component for linkage durability.
What is an Arm Cylinder (小臂油缸)?: The arm cylinder is a hydraulic cylinder responsible for extending and retracting the excavator's arm. It's located between the boom and the arm. A good example is the Caterpillar 349D2 excavator arm cylinder. (Русский: Цилиндр стрелы, Русский: Caterpillar 349D2 цилиндр стрелы).
Common Question & Answer:
Q: How often should I replace the seals in my excavator's hydraulic cylinder?
A: The replacement frequency depends on the operating environment and usage. Generally, it's recommended to inspect seals during routine maintenance and replace them immediately if you notice any signs of leakage, such as oil streaks on the cylinder rod. A leaking seal can lead to a loss of hydraulic pressure and affect the machine's performance.
Comprehensive Inventory for Caterpillar and Other Brands
Our extensive product range isn't limited to just a few models. We stock parts for a wide array of Caterpillar excavators, from the CAT 313 and CAT 315 to the massive CAT 6015B. Whether you're looking for a CAT 320C bucket cylinder 204-3689, 2043689 or a repair kit for a CAT 336D arm cylinder, you can find it in our catalog. Our commitment to providing a full spectrum of solutions for construction equipment and heavy trucks is what sets us apart.
We also offer components for other major brands, including Hitachi , Hyundai , LiuGong , and Sany . Our goal is to be a one-stop-shop for all your heavy machinery parts needs. We have everything from hydraulic cylinder assemblies for Hyundai excavators to crucial parts like the CAT 345GC hydraulic arm cylinder 545-9084, 5459084.
What is a Bucket Cylinder (铲斗油缸)?: A bucket cylinder is a hydraulic cylinder that controls the opening and closing movement of the excavator's bucket. For example, a CAT 320C excavator bucket cylinder. (Русский: Цилиндр ковша, Русский: CAT 320C цилиндр ковша).
What is a Hydraulic Pump (液压泵)?: A hydraulic pump is a component that converts mechanical power into hydraulic energy, driving the fluid to power the hydraulic cylinders. A Caterpillar 320D hydraulic pump is a key component in its hydraulic system. (Русский: Гидравлический насос, Русский: Caterpillar 320D гидравлический насос).
Common Question & Answer:
Q: What are the common causes of hydraulic cylinder failure?
A: Common causes include seal failure leading to leakage, contamination of hydraulic fluid, bent or damaged piston rods, and excessive pressure or overloading. Regular inspection and using clean, high-quality hydraulic oil are crucial for prevention.
Solutions for Heavy-Duty Machinery and Custom Parts
Our expertise extends to larger machines like the CAT 390, CAT 390F, and CAT 395 series. We offer custom-made parts to meet unique requirements, including the CAT 390 excavator arm cylinder and other specialized components. We understand that every machine is unique, and our ability to provide customized solutions sets us apart in the market. Whether you need a simple pin or a complex hydraulic assembly, we are equipped to deliver.
We are also a leading supplier of parts for agricultural machinery and automobiles. Our services include finding and supplying the right part for your specific model, ensuring a perfect fit and long-term reliability. We specialize in engine components, transmission parts, and other crucial elements for heavy-duty applications.
What is a Final Drive (终传动)?: The final drive is the last component in a machine's drivetrain, connecting the engine's power to the tracks or wheels. It provides the final torque multiplication. A Caterpillar 349D2 final drive is a heavy-duty component designed for high-load applications. (Русский: Бортовой редуктор, Русский: Caterpillar 349D2 бортовой редуктор).
What is an Oil Cooler (机油冷却器)?: An oil cooler is a heat exchanger used to cool engine oil, ensuring it maintains optimal viscosity and lubrication properties. A CAT 336D engine oil cooler is crucial for preventing engine overheating. (Русский: Масляный радиатор, Русский: CAT 336D масляный радиатор).
Troubleshooting a Common Issue:
Problem: The arm on a CAT 320D excavator is drifting or not holding its position when the controls are released.
Solution: This is a common issue often caused by internal leakage in the arm cylinder's piston seal or a faulty holding valve. To diagnose, first, check for external leaks on the cylinder. If none are present, the issue is likely internal. The solution is to replace the cylinder's internal seals using a high-quality repair kit like the one we supply. If the problem persists, the holding valve might need to be inspected and replaced.
Quality and Reliability with Growshine International
At Growshine International, we are more than just a parts supplier. We are a reliable partner for your business, offering high-quality solutions for all your needs in construction equipment parts, heavy truck parts, agricultural machinery parts, and auto parts. Our dedication to quality is unwavering, with parts like the CAT 336 C9.3 hydraulic bucket cylinder 522-3895, 5223895 and the CAT 390F arm cylinder repair kit 519-1485, 5191485 demonstrating our commitment to performance and durability.
We also provide crucial components for various systems, including undercarriage parts , engine components , and hydraulic systems . Our long-term partnership with trusted manufacturers ensures a steady supply of genuine and high-quality aftermarket parts.
What is a Piston Rod (活塞杆)?: The piston rod is a key component of a hydraulic cylinder that connects the piston to the external mechanism being moved. A Caterpillar 345 excavator arm cylinder piston rod is a critical component for the machine's movement. (Русский: Шток поршня, Русский: Caterpillar 345 шток поршня).
What is a Boom Cylinder (大臂油缸)?: A boom cylinder is a hydraulic cylinder that lifts and lowers the excavator's main boom. A Caterpillar 349D excavator boom cylinder is essential for lifting heavy loads. (Русский: Цилиндр подъема стрелы, Русский: Caterpillar 349D цилиндр подъема стрелы).
What is a Diesel Engine (柴油机)?: A diesel engine is an internal combustion engine that uses the heat of compression to ignite the fuel. It is the primary power source for most heavy machinery. The Caterpillar 336D diesel engine is a powerful and reliable workhorse. (Русский: Дизельный двигатель, Русский: Caterpillar 336D дизельный двигатель).
What is a Track Adjuster (涨紧油缸)?: A track adjuster is a hydraulic cylinder that maintains the proper tension of an excavator's track. It's a critical part of the undercarriage. A Caterpillar 326 track adjuster hydraulic cylinder is vital for smooth operation. (Русский: Натяжитель гусеницы, Русский: Caterpillar 326 натяжитель гусеницы).
Common Question & Answer:
Q: How do I know if my hydraulic oil is contaminated?
A: Signs of contamination include a milky or cloudy appearance (indicating water), a dark or burnt smell, and visible particles when a sample is taken. Contaminated oil can cause premature wear and failure of hydraulic components. Regular fluid analysis and filtration are highly recommended.
Product Catalog
| No. | Brand | Product Description | Part Number(s) |
|---|---|---|---|
| 1 | CAT | 395 Excavator Bucket Cylinder Barrel | 564-4933, 5644933 |
| 2 | CAT | 395 Bucket Arm Cylinder Pin | 5696064 |
| 3 | CAT | 320C Excavator Bucket Cylinder | 204-3689, 2043689 |
| 4 | CAT | 320C Hydraulic Cylinder | 204-3696, 2043696 |
| 5 | CAT | 395 Bucket Cylinder / Arm Hydraulic Cylinder | 564-4946, 5644946 |
| 6 | CAT | 374F Excavator Bucket Pin Arm Cylinder Pin Bucket Shaft | 212-2896, 2122896 |
| 7 | CAT | 6015B Bucket Cylinder | 425-0739, 4250739 |
| 8 | CAT | 6015B Arm Hydraulic Cylinder | 468-5595, 4685595 |
| 9 | CAT | 336DL Excavator Arm Cylinder Seal Kit | 370-1871, 3701871 |
| 10 | CAT | E390 Hydraulic Part Arm Bucket Cylinder | 3624589 |
| 11 | CAT | 390F Excavator Parts Arm Cylinder Repair Kit | 518-9271, 5189271 |
| 12 | CAT | 374F Excavator Parts Arm Cylinder Repair Kit | 370-1871, 3701871 |
| 13 | CAT | 374F Excavator Parts Bucket Arm Cylinder Assembly Repair Kit | 570-1986, 5701986 |
| 14 | CAT | 345GC Hydraulic Arm Cylinder | 545-9084, 5459084 |
| 15 | CAT | Arm Cylinder Seal Kit | 6255801 |
| 16 | CAT | 390F Excavator Parts Arm Cylinder Repair Kit | 519-1485, 5191485 |
| 17 | CAT | 390F 390D Bucket Cylinder Barrel Arm Cylinder | 362-4564, 3624564 |
| 18 | CAT | 320 323 Bucket Hydraulic Cylinder Arm Cylinder | 490-4180, 4904180 |
| 19 | CAT | 336GC C7.1 Bucket Cylinder Hydraulic Bucket Cylinder | 512-2366, 5122366 |
| 20 | CAT | 336 C9.3 Hydraulic Bucket Cylinder | 522-3895, 5223895 |
| 21 | CAT | 320C Hydraulic Bucket Cylinder | 490-4177, 4904177 |
| 22 | CAT | CAT 5N-7408/5N7408 Cylinder | 5N-7408, 5N7408 |
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