Sensor 4921519

Part Name: Sensor  Part No: 4921519 Applicable Models: jcb Delivery Options : Express freight / Standard (sea) Freight Condition/Options:  New/ OEM replacement / Genuine original Warranty : 6 months MOQ : 1 Piece

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发布日期:2025-10-02 22:17:10

WhatsApp: +8618929544937

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格莳国际 工程机械 重卡 农机 汽配
  • Part Name: Sensor 

  • Part No: 4921519

  • Applicable Models: jcb

  • Delivery Options : Express freight / Standard (sea) Freight

  • Condition/Options:  New/ OEM replacement / Genuine original

  • Warranty : 6 months

  • 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

Final Drive (行走马达): This component, located in the undercarriage of tracked machines like excavators and bulldozers, provides the final gear reduction and transmits power to the tracks, enabling movement.
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.
Hydraulic Pump (液压泵): The heart of the hydraulic system, it converts mechanical energy into hydraulic energy, pumping fluid to power cylinders, motors, and other actuators.
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.
Turbocharger (涡轮增压器): An air compressor driven by the engine's exhaust gases. It forces more air into the engine's cylinders, increasing power and efficiency.
Example: (中) 康明斯 QSK60 发动机涡轮增压器; (英) Cummins QSK60 Engine Turbocharger; (Рус) Турбокомпрессор двигателя Cummins QSK60.
Control Valve (控制阀): Directs the flow of hydraulic fluid to different parts of the machine, allowing the operator to control its movements with precision. It is typically located in the main control block.
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.
Track Shoe (履带板): The individual plates that form the track chain of a crawler machine. They provide traction and support the machine's weight on the ground.
Example: (中) 日立 ZX330 挖掘机履带板; (英) Hitachi ZX330 Excavator Track Shoe; (Рус) Башмак гусеницы экскаватора Hitachi ZX330.
Fuel Injector (喷油器): A critical engine component that sprays a fine mist of fuel into the combustion chamber at the correct moment for ignition.
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.
Starter Motor (启动马达): An electric motor that engages with the engine's flywheel to crank the engine and start the combustion process.
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.
Alternator (交流发电机): Part of the vehicle's charging system, it generates electricity to recharge the battery and power the electrical systems while the engine is running.
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.
Bucket Teeth (斗齿): Replaceable ground-engaging tools attached to the cutting edge of an excavator or loader bucket. They are designed for penetration and wear resistance.
Example: (中) 现代 R210 挖掘机斗齿; (英) Hyundai R210 Excavator Bucket Teeth; (Рус) Зубья ковша экскаватора Hyundai R210.
Radiator (散热器): A heat exchanger used to cool the engine. It transfers thermal energy from the engine coolant to the ambient air.
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:

  1. 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.
  2. 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.
  3. 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.
  4. 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.
  5. 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)
181n4-01022gg, 81n401022ggHyundai Slewing RingClick to Inquire
2209-25-00102, 2092500102Komatsu PC800LC-8Click to Inquire
3Yn40f00037f1Kobelco E215bClick to Inquire
420y-25-00301, 20y2500301Komatsu PC210nlc-7KClick to Inquire
5939731201Liebherr R974Click to Inquire
6Yn40f00004f1Kobelco Sk210LC-6Click to Inquire
720y-25-21200, 20y2521200Komatsu PC220-6Click to Inquire
821n-25-00201, 21n2500201Komatsu PC1250Click to Inquire
99321216Hitachi Zx870-3Click to Inquire
10221-6764, 2216764Caterpillar 322cClick to Inquire
11PC2000-8Komatsu PC2000-8Click to Inquire
12333/P7280, 333P7280JCB 205Click to Inquire
13Jnb0146JCB Js130Click to Inquire
14Tr-100m-1-00101, Tr100m100101Excavator Slewing RingClick to Inquire
15370-023-05570, 37002305570Excavator Slewing RingClick to Inquire
16397-9666, 3979666Caterpillar 365clClick to Inquire
17378-9586, 3789586Caterpillar Cat374fClick to Inquire
18109-00030b, 10900030bDoosan 255LC-VClick to Inquire
19Clg904Liugong Clg904Click to Inquire
20Swe50n9Sunward Swe50n9Click to Inquire
21Bt160cTakeuchi Bt160cClick to Inquire
22LG6215Lonking LG6215Click to Inquire
23Mx292Samsung Mx292Click to Inquire
24Clg907DLiugong Clg907DClick to Inquire
2520m-25-81201, 20m2581201Komatsu PC18, PC15Click to Inquire
26932833001Liebherr R914Click to Inquire
27114-1505, 1141505Caterpillar Cat320bClick to Inquire
28PC200Komatsu PC200Click to Inquire
2921p-25-K1100, 21p25K1100Komatsu PC150lck-6, PC160-6KClick to Inquire
30206-25-00301, 2062500301Komatsu PC240-7Click to Inquire
31201-25-61100, 2012561100Komatsu PC75uu-2Click to Inquire
32203-25-62100, 2032562100Komatsu PC100-6, PC120-6Click to Inquire
33206-25-11100, 2062511100Komatsu PC110rClick to Inquire
34203-25-51200, 2032551200Komatsu PC120-5Click to Inquire
35PC130-7Komatsu PC130-7Click to Inquire
3621K-25-00101, 21K2500101Komatsu PC160-7Click to Inquire
37205-25-00015, 2052500015Komatsu PC200Click to Inquire
3820y-25-11103, 20y2511103Komatsu PC200-5Click to Inquire
39206-25-00200, 2062500200Komatsu PC200-8Click to Inquire
4020y-25-20200, 20y2520200Komatsu PC200-6Click to Inquire
4120y-25-22200, 20y2522200Komatsu PC200-6zClick to Inquire
4220y-25-21200, 20y2521200Komatsu PC200-7Click to Inquire
4320y-25-21300, 20y2521300Komatsu PC220-7Click to Inquire
44207-25-61100, 2072561100Komatsu PC300LC-7, PC300-8Click to Inquire
45207-25-00121, 2072500121Komatsu PC300-8Click to Inquire
46207-25-61200, 2072561200Komatsu PC340, PC380LC-6KClick to Inquire
47208-25-61100, 2082561100Komatsu PC400-7, PC400, PC450-8Click to Inquire
48208-25-52101, 2082552101Komatsu PC400LC-5Click to Inquire
49208-25-52100, 2082552100Komatsu PC400LC-5Click to Inquire
50208-25-A2100, 20825A2100Komatsu PC400LC-5Click to Inquire
5121m-25-11100, 21m2511100Komatsu PC600-7, PC600LC-6Click to Inquire
5221m-25-11102, 21m2511102Komatsu PC600-7Click to Inquire
5321m-25-11101, 21m2511101Komatsu PC600LC-8Click to Inquire
54209-25-71100, 2092571100Komatsu PC750Click to Inquire
55209-25-00101, 2092500101Komatsu PC800-6Click to Inquire
56PC2000Komatsu PC2000Click to Inquire
574193433Hitachi Ex60-2, Ex60wd-2Click to Inquire
5843767553Hitachi Ex60-5Click to Inquire
599098995Hitachi Ex100Click to Inquire
609102726Hitachi Ex100-3Click to Inquire
619184497Hitachi Zx135Click to Inquire
629146953Hitachi Ex150-5Click to Inquire
639098993Hitachi Ex200Click to Inquire
649260971Hitachi Zx200LC-5g, Zx200-3, Zx200-5g, Zx330-3LCClick to Inquire
659148123Hitachi Ex200-3Click to Inquire
669196732Hitachi Zx200, Zx225us, Zx240Click to Inquire
679102727Hitachi Ex200, Ex210-5Click to Inquire
689169646Hitachi Zx210lck, Zx225usrClick to Inquire
699262248Hitachi Zx220Click to Inquire
709154037Hitachi Ex220-1, Ex270-5, Zx230Click to Inquire
719275368Hitachi Zx210W-1Click to Inquire
729159646Hitachi Zx230Click to Inquire
739245728Hitachi Zx240Click to Inquire
749112188Hitachi Ex300-3Click to Inquire
759245698Hitachi Zx330LC-5g, Zx350-3Click to Inquire
769166468Hitachi Zx370Click to Inquire
779169894Hitachi Zx370Click to Inquire
789099074Hitachi Kh180-3Click to Inquire
791214DBS110tHitachi He6010bClick to Inquire
80Ex400-3/5Hitachi Ex400-3/5Click to Inquire
819129521Hitachi Ex400-5, Zx450Click to Inquire
829247287Hitachi Zx450-3, Zx470-3Click to Inquire
83Yc400LC-8Yuchai Yc400LC-8Click to Inquire
846016584Hitachi Zx650lchClick to Inquire
859229741Hitachi Zx800ldClick to Inquire
86Yc225-8Yuchai Yc225-8Click to Inquire
876023643Hitachi Zx870Click to Inquire
88109-00165, 10900165Doosan S140LC-VClick to Inquire
89Dh220-3Doosan Dh220-3Click to Inquire
90109-00149, 10900149Doosan Solar55-VplusClick to Inquire
91140109-00048A, 14010900048ADoosan Dh220LC, Dx225lcaClick to Inquire
92109-00162, 10900162Doosan Dx225Click to Inquire
93109-00162A, 10900162ADoosan Dx225LC, Dx225lcaClick to Inquire
94140109-00045, 14010900045Doosan S225nlc-VClick to Inquire
95109-00052, 10900052Doosan SL220LC-V, 225nlc-VClick to Inquire
96180-00297D3, 18000297D3Doosan 255LC-VClick to Inquire
97140109-00042, 14010900042Doosan 255LC-VClick to Inquire
98140109-00043, 14010900043Doosan 255LC-VClick to Inquire
99109-00157, 10900157Doosan 300-VClick to Inquire
100140109-00010, 14010900010Doosan Dx300lcaClick to Inquire
101140109-00010A, 14010900010ADoosan Dx300lcaClick to Inquire
102140109-00038, 14010900038Doosan S340Click 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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