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Part Name: Sensor
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Part No: 4921519
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Applicable Models: jcb
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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
Your Premier Source for Excavator Slewing Rings in the Brazilian Market: A Guide to Komatsu & Hitachi Parts - October 2, 2025
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Custom Parts Development Services
Need a specific slewing ring, swing gear, or turntable bearing that's hard to find? Growshine offers professional custom development and manufacturing services for a wide range of machinery components. We turn your specifications into high-performance parts. Contact us to discuss your unique requirements!
Welcome to Growshine International, your professional partner in sourcing high-quality machinery components. As a leading trading company specializing in the import and export of construction machinery parts, heavy truck parts, agricultural machinery parts, and auto parts, we are dedicated to connecting global customers with reliable and cost-effective solutions from China. If you are looking for a trusted sourcing construction machinery parts from China partner, you've come to the right place. We understand the critical role these components play in your operations, which is why we offer a vast inventory of parts for leading brands.
At the core of every excavator's mobility is the slewing ring, also known as a swing circle or turntable bearing. This vital component allows the machine's upper structure to rotate smoothly and withstand immense loads. We proudly offer a comprehensive range of slewing bearings for various models, including the popular Komatsu PC200-8 slewing ring bearing and the robust Hitachi ZX200 swing circle for sale. Our commitment at Growshine is to provide durable parts that meet or exceed OEM specifications, ensuring your equipment operates at peak efficiency.
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Our inventory covers a wide array of brands. Whether you need a Doosan DX225 swing gear China sourced part like 109-00162, an affordable Kobelco SK210LC slew ring such as YN40F00004F1, or a Liebherr excavator R974 swing bearing alternative like 939731201, Growshine International is your go-to supplier. We streamline the procurement process, offering global shipping for heavy machinery parts and ensuring you receive the right component quickly and efficiently. Our expertise in heavy truck engine parts international trade and as a wholesale supplier of excavator undercarriage parts makes us a versatile partner for all your needs.
Understanding Key Machinery Components
Example: (中) 卡特彼勒 D6R 推土机行走马达; (英) Caterpillar D6R Bulldozer Final Drive; (Рус) Бортовой редуктор бульдозера Caterpillar D6R.
Example: (中) 小松 PC200-7 挖掘机液压主泵; (英) Komatsu PC200-7 Excavator Main Hydraulic Pump; (Рус) Главный гидравлический насос экскаватора Komatsu PC200-7.
Example: (中) 康明斯 QSK60 发动机涡轮增压器; (英) Cummins QSK60 Engine Turbocharger; (Рус) Турбокомпрессор двигателя Cummins QSK60.
Example: (中) 沃尔沃 EC480D 挖掘机主控制阀; (英) Volvo EC480D Excavator Main Control Valve; (Рус) Главный распределительный клапан экскаватора Volvo EC480D.
Example: (中) 日立 ZX330 挖掘机履带板; (英) Hitachi ZX330 Excavator Track Shoe; (Рус) Башмак гусеницы экскаватора Hitachi ZX330.
Example: (中) 斯堪尼亚 DC13 卡车发动机喷油器; (英) Scania DC13 Truck Engine Fuel Injector; (Рус) Топливная форсунка двигателя грузовика Scania DC13.
Example: (中) 约翰迪尔 8R 拖拉机启动马达; (英) John Deere 8R Tractor Starter Motor; (Рус) Стартер трактора John Deere 8R.
Example: (中) 曼恩 TGX 重卡交流发电机; (英) MAN TGX Heavy Truck Alternator; (Рус) Генератор переменного тока тяжелого грузовика MAN TGX.
Example: (中) 现代 R210 挖掘机斗齿; (英) Hyundai R210 Excavator Bucket Teeth; (Рус) Зубья ковша экскаватора Hyundai R210.
Example: (中) 凯斯 580SN 挖掘装载机散热器; (英) Case 580SN Backhoe Loader Radiator; (Рус) Радиатор экскаватора-погрузчика Case 580SN.
Troubleshooting Guide: Caterpillar 320D Excavator Experiencing Slow Swing Function
A slow or weak swing function is a common issue that can significantly reduce productivity. Here is a step-by-step approach to diagnosing and resolving the problem:
- Check Hydraulic Fluid Level and Condition: Low hydraulic fluid is the simplest cause. Ensure the fluid is at the correct level in the reservoir. Also, check for contamination (e.g., water, debris) or a dark, burnt smell, which indicates overheating and fluid degradation. If contaminated, the fluid and filters must be replaced.
- Inspect the Swing Motor Case Drain Filter: A clogged case drain filter can cause excessive backpressure in the swing motor, leading to sluggish performance and potential seal failure. Locate the filter, remove it, and inspect for metal particles. Heavy contamination suggests internal wear in the swing motor.
- Test Swing Relief Valve Pressure: The swing relief valves control the maximum pressure in the swing circuit. If a valve is stuck open or set too low, pressure will be lost, resulting in weak swing torque. A hydraulic technician should use a pressure gauge to test and adjust the relief valve settings according to the service manual.
- Evaluate the Swing Motor and Swing Drive Gearbox: If the pressures are correct, the issue may lie within the swing motor or the planetary gearbox. Listen for unusual grinding noises during operation, which could indicate gear damage or bearing failure. An oil sample from the swing drive can be analyzed for metal content to diagnose internal wear.
- Check Pilot System Pressure: The joystick sends a low-pressure pilot signal to the main control valve to actuate the swing function. If this pilot pressure is low, the main valve spool will not shift fully, causing slow operation. This requires checking the pilot pump and associated lines.
By following these steps, you can systematically identify the root cause of a slow swing problem on a Caterpillar 320D and perform the necessary repairs to restore its performance.
Below is a comprehensive list of the slewing rings we offer. You can find parts for a wide range of machinery, from a JCB JS130 revolving gear manufacturer to a supplier for a Samsung MX292 Excavators Swing Ring Gear. Each part number is listed for your convenience. If you don't see what you need, contact us for our custom agricultural equipment parts manufacturing capabilities.
Slewing Ring & Swing Circle Product List
| No. (序号) | Part Number (零件号) | Brand & Model (品牌/型号) | Inquiry (垂询) |
|---|---|---|---|
| 1 | 81n4-01022gg, 81n401022gg | Hyundai Slewing Ring | Click to Inquire |
| 2 | 209-25-00102, 2092500102 | Komatsu PC800LC-8 | Click to Inquire |
| 3 | Yn40f00037f1 | Kobelco E215b | Click to Inquire |
| 4 | 20y-25-00301, 20y2500301 | Komatsu PC210nlc-7K | Click to Inquire |
| 5 | 939731201 | Liebherr R974 | Click to Inquire |
| 6 | Yn40f00004f1 | Kobelco Sk210LC-6 | Click to Inquire |
| 7 | 20y-25-21200, 20y2521200 | Komatsu PC220-6 | Click to Inquire |
| 8 | 21n-25-00201, 21n2500201 | Komatsu PC1250 | Click to Inquire |
| 9 | 9321216 | Hitachi Zx870-3 | Click to Inquire |
| 10 | 221-6764, 2216764 | Caterpillar 322c | Click to Inquire |
| 11 | PC2000-8 | Komatsu PC2000-8 | Click to Inquire |
| 12 | 333/P7280, 333P7280 | JCB 205 | Click to Inquire |
| 13 | Jnb0146 | JCB Js130 | Click to Inquire |
| 14 | Tr-100m-1-00101, Tr100m100101 | Excavator Slewing Ring | Click to Inquire |
| 15 | 370-023-05570, 37002305570 | Excavator Slewing Ring | Click to Inquire |
| 16 | 397-9666, 3979666 | Caterpillar 365cl | Click to Inquire |
| 17 | 378-9586, 3789586 | Caterpillar Cat374f | Click to Inquire |
| 18 | 109-00030b, 10900030b | Doosan 255LC-V | Click to Inquire |
| 19 | Clg904 | Liugong Clg904 | Click to Inquire |
| 20 | Swe50n9 | Sunward Swe50n9 | Click to Inquire |
| 21 | Bt160c | Takeuchi Bt160c | Click to Inquire |
| 22 | LG6215 | Lonking LG6215 | Click to Inquire |
| 23 | Mx292 | Samsung Mx292 | Click to Inquire |
| 24 | Clg907D | Liugong Clg907D | Click to Inquire |
| 25 | 20m-25-81201, 20m2581201 | Komatsu PC18, PC15 | Click to Inquire |
| 26 | 932833001 | Liebherr R914 | Click to Inquire |
| 27 | 114-1505, 1141505 | Caterpillar Cat320b | Click to Inquire |
| 28 | PC200 | Komatsu PC200 | Click to Inquire |
| 29 | 21p-25-K1100, 21p25K1100 | Komatsu PC150lck-6, PC160-6K | Click to Inquire |
| 30 | 206-25-00301, 2062500301 | Komatsu PC240-7 | Click to Inquire |
| 31 | 201-25-61100, 2012561100 | Komatsu PC75uu-2 | Click to Inquire |
| 32 | 203-25-62100, 2032562100 | Komatsu PC100-6, PC120-6 | Click to Inquire |
| 33 | 206-25-11100, 2062511100 | Komatsu PC110r | Click to Inquire |
| 34 | 203-25-51200, 2032551200 | Komatsu PC120-5 | Click to Inquire |
| 35 | PC130-7 | Komatsu PC130-7 | Click to Inquire |
| 36 | 21K-25-00101, 21K2500101 | Komatsu PC160-7 | Click to Inquire |
| 37 | 205-25-00015, 2052500015 | Komatsu PC200 | Click to Inquire |
| 38 | 20y-25-11103, 20y2511103 | Komatsu PC200-5 | Click to Inquire |
| 39 | 206-25-00200, 2062500200 | Komatsu PC200-8 | Click to Inquire |
| 40 | 20y-25-20200, 20y2520200 | Komatsu PC200-6 | Click to Inquire |
| 41 | 20y-25-22200, 20y2522200 | Komatsu PC200-6z | Click to Inquire |
| 42 | 20y-25-21200, 20y2521200 | Komatsu PC200-7 | Click to Inquire |
| 43 | 20y-25-21300, 20y2521300 | Komatsu PC220-7 | Click to Inquire |
| 44 | 207-25-61100, 2072561100 | Komatsu PC300LC-7, PC300-8 | Click to Inquire |
| 45 | 207-25-00121, 2072500121 | Komatsu PC300-8 | Click to Inquire |
| 46 | 207-25-61200, 2072561200 | Komatsu PC340, PC380LC-6K | Click to Inquire |
| 47 | 208-25-61100, 2082561100 | Komatsu PC400-7, PC400, PC450-8 | Click to Inquire |
| 48 | 208-25-52101, 2082552101 | Komatsu PC400LC-5 | Click to Inquire |
| 49 | 208-25-52100, 2082552100 | Komatsu PC400LC-5 | Click to Inquire |
| 50 | 208-25-A2100, 20825A2100 | Komatsu PC400LC-5 | Click to Inquire |
| 51 | 21m-25-11100, 21m2511100 | Komatsu PC600-7, PC600LC-6 | Click to Inquire |
| 52 | 21m-25-11102, 21m2511102 | Komatsu PC600-7 | Click to Inquire |
| 53 | 21m-25-11101, 21m2511101 | Komatsu PC600LC-8 | Click to Inquire |
| 54 | 209-25-71100, 2092571100 | Komatsu PC750 | Click to Inquire |
| 55 | 209-25-00101, 2092500101 | Komatsu PC800-6 | Click to Inquire |
| 56 | PC2000 | Komatsu PC2000 | Click to Inquire |
| 57 | 4193433 | Hitachi Ex60-2, Ex60wd-2 | Click to Inquire |
| 58 | 43767553 | Hitachi Ex60-5 | Click to Inquire |
| 59 | 9098995 | Hitachi Ex100 | Click to Inquire |
| 60 | 9102726 | Hitachi Ex100-3 | Click to Inquire |
| 61 | 9184497 | Hitachi Zx135 | Click to Inquire |
| 62 | 9146953 | Hitachi Ex150-5 | Click to Inquire |
| 63 | 9098993 | Hitachi Ex200 | Click to Inquire |
| 64 | 9260971 | Hitachi Zx200LC-5g, Zx200-3, Zx200-5g, Zx330-3LC | Click to Inquire |
| 65 | 9148123 | Hitachi Ex200-3 | Click to Inquire |
| 66 | 9196732 | Hitachi Zx200, Zx225us, Zx240 | Click to Inquire |
| 67 | 9102727 | Hitachi Ex200, Ex210-5 | Click to Inquire |
| 68 | 9169646 | Hitachi Zx210lck, Zx225usr | Click to Inquire |
| 69 | 9262248 | Hitachi Zx220 | Click to Inquire |
| 70 | 9154037 | Hitachi Ex220-1, Ex270-5, Zx230 | Click to Inquire |
| 71 | 9275368 | Hitachi Zx210W-1 | Click to Inquire |
| 72 | 9159646 | Hitachi Zx230 | Click to Inquire |
| 73 | 9245728 | Hitachi Zx240 | Click to Inquire |
| 74 | 9112188 | Hitachi Ex300-3 | Click to Inquire |
| 75 | 9245698 | Hitachi Zx330LC-5g, Zx350-3 | Click to Inquire |
| 76 | 9166468 | Hitachi Zx370 | Click to Inquire |
| 77 | 9169894 | Hitachi Zx370 | Click to Inquire |
| 78 | 9099074 | Hitachi Kh180-3 | Click to Inquire |
| 79 | 1214DBS110t | Hitachi He6010b | Click to Inquire |
| 80 | Ex400-3/5 | Hitachi Ex400-3/5 | Click to Inquire |
| 81 | 9129521 | Hitachi Ex400-5, Zx450 | Click to Inquire |
| 82 | 9247287 | Hitachi Zx450-3, Zx470-3 | Click to Inquire |
| 83 | Yc400LC-8 | Yuchai Yc400LC-8 | Click to Inquire |
| 84 | 6016584 | Hitachi Zx650lch | Click to Inquire |
| 85 | 9229741 | Hitachi Zx800ld | Click to Inquire |
| 86 | Yc225-8 | Yuchai Yc225-8 | Click to Inquire |
| 87 | 6023643 | Hitachi Zx870 | Click to Inquire |
| 88 | 109-00165, 10900165 | Doosan S140LC-V | Click to Inquire |
| 89 | Dh220-3 | Doosan Dh220-3 | Click to Inquire |
| 90 | 109-00149, 10900149 | Doosan Solar55-Vplus | Click to Inquire |
| 91 | 140109-00048A, 14010900048A | Doosan Dh220LC, Dx225lca | Click to Inquire |
| 92 | 109-00162, 10900162 | Doosan Dx225 | Click to Inquire |
| 93 | 109-00162A, 10900162A | Doosan Dx225LC, Dx225lca | Click to Inquire |
| 94 | 140109-00045, 14010900045 | Doosan S225nlc-V | Click to Inquire |
| 95 | 109-00052, 10900052 | Doosan SL220LC-V, 225nlc-V | Click to Inquire |
| 96 | 180-00297D3, 18000297D3 | Doosan 255LC-V | Click to Inquire |
| 97 | 140109-00042, 14010900042 | Doosan 255LC-V | Click to Inquire |
| 98 | 140109-00043, 14010900043 | Doosan 255LC-V | Click to Inquire |
| 99 | 109-00157, 10900157 | Doosan 300-V | Click to Inquire |
| 100 | 140109-00010, 14010900010 | Doosan Dx300lca | Click to Inquire |
| 101 | 140109-00010A, 14010900010A | Doosan Dx300lca | Click to Inquire |
| 102 | 140109-00038, 14010900038 | Doosan S340 | Click to Inquire |
As a global enterprise, Growshine International is committed to expanding its reach and providing exceptional service. We manage a network of platforms to better serve our diverse clientele. You can find more information about our products and services on our company websites: ar-excel.com, ampleresiliencesoft.com, cgsc66.com, cgsc-equip.com, en.xinsheng2024.com, and hi-part.cn. We continuously update our offerings to include parts like export quality semi-truck brake components and provide clarity on topics like genuine vs aftermarket excavator parts to help you make informed decisions.
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