Komatsu Excavator Speed Sensor and Other High-Quality Parts - March 25, 2025

Engine and Related Parts

Ensure your Komatsu engine runs smoothly with our range of high-performance parts. We offer the Belt 6732-81-3340, 6732813340, designed for Komatsu Engine S4D102 S6D102 in Excavator models PC100-6, PC120-6, PC130-6, and PW200-7.

Speed Sensor

Maintain accurate readings with our reliable Speed Sensor 7861-93-2330, 7861932330, compatible with Komatsu Engines S4D95LE, SA12V170E, SA6D125E, SA6D140E, SAA12V140E, SAA4D102E, SAA4D95LE, and SAA6D102E.

Pilot Valve Seal Kits

We supply Pilot Valve Seal Kits for various Komatsu excavators, including the PC56, PC200-7, PC78, PC300, PC300-1, PC300-2, PC300-3, PC300-5, PC300-5C, PC300-5K, PC300-6, PC300-6Z, PC300-7, PC300-8, and PC120.

Main Relief Valves

Control hydraulic pressure effectively with our Main Relief Valve 709-70-51200, 7097051200, suitable for Komatsu PC200-3, PC200LC-3, PC220-3, PC220LC-3, PF5-1, PF5LC-1, PW210-1, PW200-1, PC240LC-3K, and PC240-3K. We also offer the Main Relief Valve 700-90-51001, 7009051001, for Komatsu PC200-1 and PC220-1.

Cylinder Seal Kits

Maintain hydraulic cylinder integrity with our Arm Cylinder Seal Kit 707-98-58240, 7079858240, for Komatsu PC220-8, PC220LC-8, PC240-8K, PC240LC-8K, PC220LL-8, PC240LC-8, and PC200LC-8. We also provide Boom Cylinder Seal Kits for Komatsu PC300, PC300-1, PC300-2, PC300-3, PC300-5, PC300-6, PC300-7, PC300-8, PC220-6, PC60-3, PC40-1, PC40-2, PC40-3, PC40-5, PC40-6, PC40-7, PC20-7, PC75, PC160, and 707-98-46280, 7079846280, for PC200-8, PC200LC-8, PC210-8K, and PC230NHD-8K. Additionally, we have Adjust Cylinder Seal Kits for Komatsu PC30, PC78US-10, PC78US-5, PC78US-6, PC78US-8, PC78UU-6, PC78UU-8, PC78MR-6, PC220-7, PC40, PC150, PC56, PC100-1, PC100-2, PC100-3, PC100-5, PC100-6, PC120, PC220-6, PC220-8, and PC45. Our Bucket Cylinder Seal Kit 707-99-57200, 7079957200, fits Komatsu PC410-5, PC400-5, and PC400-6, and another Bucket Cylinder Seal Kit is available for PC100-1, PC100-2, PC100-3, PC100-5, and PC100-6. We also offer Arm Cylinder Seal Kits for PC30 and 707-98-48610, 7079848610, for PC160LC-7, PC180LC-7, PC200-8, PC200LC-8, PC210-8K, and PC228US-3E0, as well as for PC120-6E.

Control and Drive Components

Enhance your excavator's operation with our Travel Control Pressure Switch 20Y-06-21710, 20Y0621710, for Komatsu Excavator PC100-6, PC120-6, PC200-6, PC220-6, PC300-6, and PC400-6. We also supply the Swing Motor Machinery Carrier 22U-26-21572, 22U2621572, for Komatsu HB205-1, PC200-7, PC210-10, PC228US-3, PW200-7, PW220-7H, and PC238USLC-11. Find the KOMATSU PC100-5 Ram pump behind shaft, KOMATSU PC200-6 Travel Cycloid Disk Assembly, KOMATSU PC200-6 Travel Motor Drive Plate, KOMATSU PC210-7Swing Second Class four star Frame(cast steel), KOMATSU 4D102 Swing motor First class Sun gear, KOMATSU PC80 Travel Motor Assembly, KOMATSU PC120-5 Travel Motor shaft, KOMATSU PC200-6(6D95) Travel motor Second class three star frame, KOMATSU PC50-2 Travel motor Pump shaft, KOMATSU PC120-6(4D102) Swing Motor First Class three star Frame Assembly, KOMATSU PC100-5 Travel Cycloid Disk Assembly, KOMATSU PC120-5 Travel Motor Drive Plate(pin roller shell), KOMATSU PC120-6(4D102) Swing motor First class three star frame, KOMATSU PC200-5 Travel motor pump connecting shaft, and KOMATSU PC120-6(4D102) Swing Reduction 2nd four star Carrier.

Exhaust and Filtration

We offer the Muffler 6754-11-5350, 6754115350, for Komatsu Engine SAA6D107E-1A Excavator PC200-8, PC200F-8, PC200LC-8, PC220LC-8, PC270LC-8, PC290LC-8K, and PC290NLC-8K. Our range also includes the Muffler Silencer 620-41-15252, 6204-11-5253, 6204115253, for Komatsu Engine 4D95L Excavator PW60-3, PW60S-3, PC60U-5, PC60-5, PC60L-5, PC80LC-3, PC80-3, and PC75UU-1. Ensure clean hydraulics with our Hydraulic Filter 070-63-01100, 0706301100, for Komatsu D65PX-12, D65P-12, D65EX-12, D65E-12, and D60P-12. We also supply Oil Filters 6735-51-5141, 6735515141, for Komatsu PC200-6, PC210-6, PC210-6D, PC210LC-6, PC220-6, PC230-6, and PC250-6, and 6136-51-5120, 6136515120, for PC200-2 and PC200LC-2.

Hoses and Mountings

Find durable Engine Mounting Rubber Cushion Feet Bumpers for Komatsu Excavator PC220-7. We also offer the Engine 6D102 Head Cover Hose 6130-12-8720, 6130128720, compatible with Komatsu Excavator PC200-7 and PC220-7, as well as for PC300-7 and PC360-7. Our range includes Intake Hose 201-01-6441, 201016441, for Komatsu Excavator PC60-7 Engine 4D102 and Intercooler Hose 6738-11-4870, 6738114870, for Komatsu Excavator PC200-7.

Pumps and Valves

We stock Pilot Gear Pumps 704-24-28230, 7042428230, for KOMATSU Excavator PC200-5 and PC200LC-5, and for KOMATSU Excavator PC50UU. Our inventory includes Main Valve Seal Kits for Komatsu Excavator PC50FR-1, PC50FR-2, PC50MR-2, PC50UD-2, PC50UU-1, PC50UU-2, PC50UUM-2, and PC40-1, PC40-2, PC40-3, PC40-5, PC40-6, PC40-7, as well as for PC78MR-6, PC78US-10, PC78US-5, PC78US-6, PC78US-8, PC78UU-10, PC78UU-6, and PC78UU-8. We also offer Main Pump Seal Kits for Komatsu Excavator PC300, PC300-1, PC300-2, PC300-3, PC300-5, PC300-5C, PC300-5K, PC300-6, PC300-6Z, PC300-7, PC300-8, PC100-1, PC100-2, PC100-3, PC100-5, PC100-6, PC55, PC50, PC150, PC160, and PC220-7. Find the Relief Valve 723-40-56900, 7234056900, for Komatsu Excavator PC200-7, PC220-7, PC228USLC-3, PC230-7, PC270-7, PC300LC-7, PC350-7, and PC360-7. We also supply Solenoid Valves 206-60-51130, 2066051130, 206-60-51131, 2066051131, and 206-605-1132, 2066051132, for Komatsu Excavator PC120-6 Engine 6D102 and the Second Overflow Valve for Komatsu Excavator PC200-8.

Other Components

Our extensive inventory includes Fan Belt 9pk1180 for Komatsu Excavator PC350-6 Engine 6D108 and for PC300-5 Engine NT855, as well as 8pk1610 for Komatsu Excavator PC300-7. We offer Fan Support 4932910, 4932910, for Cummins Engine 4BT Komatsu 6D102 Excavator PC200-6, PC200-7, and PC200-8. Find the Swing Motor Case 22U-26-21190, 22U2621190, for Komatsu Excavator PC210-7, PC228US-3, PC230NHD-7, PW200-7, and PW220-7. We also stock Throttle Cable for Komatsu Excavator PC220-8, Lower Roller Track Roller Bottom Roller 20Y-30-00012, 20Y3000012, for Komatsu Excavator PC200-5, PC210-6, PC220-5, PC220-6, and PC230-6, Counterbalance for Komatsu Excavator PC200-5, Swivel Joint Seal Kit for Komatsu PC75 Excavator and PC120, Controller Connector Plugs for Komatsu Excavator PC200-8, PC220-8, PC300-8, and PC400-8, Water Tank Radiator Core D60 ASS'Y 195-03-22130, 1950322130, for Komatsu D355A-3 and PC600-1, Hydraulic Oil Cooler 201-03-72121, 2010372121, 201-03-72300, 2010372300, and 201-03-72122, 2010372122, for Komatsu Excavator PC60-7, PC70-7, and PC70-7-B, Hub TZ810B1001-00, TZ810B100100, for Komatsu Excavator PC60-6, PC60-7, PC70-6, PC70-7, PC75-1, PC75R-2, PC75UD-3, PC75US-3, and PC75UU-2, Travel Framework Floating Seal for Komatsu Excavator PC200-1, PC200-2, PC200-3, PC200-5, PC200-6, PC200-7, and PC200-8, Travel motor Pump shaft for Komatsu PC120-6, Swing 2nd JDB Copper Bush for Komatsu Excavator PC60-7, Swing Vertical Shaft 20Y-26-21142, 20Y2621142, for KOMATSU Excavator PC200-7 BP500 PC210 PC228 PC228US, Display Screen Meter Liquid Crystal LCD for Komatsu Excavator PC60-7, Swing 1st Three Planetary Gear for Komatsu Excavator PC200-6, Travel Motor Shaft TZ500D1015-00, TZ500D101500, for Komatsu Excavator PC60-7, PC60-7-B, PC70-7, PC70-7-B, PC75UU-3, PC78MR-6, PC78US-6, and PC78UU-6, Front Idler 201-30-52110, 2013052110, for Komatsu Excavator PC60-5, PC60-6, and PC70-6, Swing Reduction 2nd four star Carrier for KOMATSU PC120-6(4D102), Sensor Plug for Komatsu Excavator PC60-6, Oil Tank Gauge 203-60-31160, 2036031160, for Komatsu PC120-7, PC200-7, PC200-8, PC300-8, PC240-8, PC220-7, PC100-5, PC120-5, PC130-5, and PC150-5, Swing Machinery Planetary Carrier 201-26-61211, 2012661211, for Komatsu PC60-6, PC70-6, and JV100A-2T, Swivel Center Joint Cover Cap for KOMATSU PC210-8, Travel Motor Drive Plate for KOMATSU PC120-5, Carrier Assembly 201-26-71121, 2012671121, for Komatsu Excavator PC60-7, PC60-7E, PC60-7S, PC70-7, PC70-7E, PC75-1, PC75R-2, PC75UD-3, PC75US-3, PC75UU-3, PC78US-5, and PW75-1, PW75R-2, Hydraulic Pump 708-2L-00112, 7082L00112, for Komatsu PC270-7 Refit, Swing Machinery Prop Shaft 206-26-69111, 2062669111, for KOMATSU PC200-8, PC228US-8, PC210-8K, and HB205-1, Bearing 120SLE2111, 120SLE2111, for Koyo NTN NSK Komatsu Excavator PC210-7, Final Drive Travel Motor Large Bearing TZ200A1021-01, TZ200A102101, BA180-4BWSA, BA1804BWSA, for Komatsu Excavator PC100-3, PC150-3, and PC120-3, Travel Large Bearing SF4444VPX1, SF4444VPX1, for Komatsu Engine 6D102 Excavator PC200-6, and Alternator for Komatsu Engine 6D114 Excavator PC360-7. We also offer Pilot Valve Seal Kit for Komatsu Excavator PC120-6 Engine 4D95 and Speed Sensor for Komatsu Excavator PC120-6 Engine 4D95.

Overhaul and Seal Kits

We provide the Overhaul Rebuild Kit for Komatsu S6D108-1, SA6D108-1, and SAA6D108E-2 Engines used in PC300-6, PC300-5, PC350-6, PC310, PC350, and PC300LC-5.

名词解释 (Glossary)

风扇马达 (Fēngshàn Mǎdá / Fan Motor / Вентиляторный Двигатель)

安装部位 (Ānzhuāng Bùwèi / Installation Location / Место Установки): 发动机冷却系统 (Fādòngjī Lěngquè Xìtǒng / Engine Cooling System / Система Охлаждения Двигателя)

举例 (Jǔlì / Example / Пример): 卡特彼勒 345D 风扇马达 (Kǎtèbǐlè 345D Fēngshàn Mǎdá / Caterpillar 345D Fan Motor / Вентиляторный Двигатель Caterpillar 345D)

名词解释 (Glossary)

主泵 (Zhǔ Bèng / Main Pump / Главный Насос)

安装部位 (Ānzhuāng Bùwèi / Installation Location / Место Установки): 液压系统 (Yèyā Xìtǒng / Hydraulic System / Гидравлическая Система)

举例 (Jǔlì / Example / Пример): 小松 PC200-8 主泵 (Xiǎosōng PC200-8 Zhǔ Bèng / Komatsu PC200-8 Main Pump / Главный Насос Komatsu PC200-8)

名词解释 (Glossary)

液压油缸 (Yèyā Yóugāng / Hydraulic Cylinder / Гидравлический Цилиндр)

安装部位 (Ānzhuāng Bùwèi / Installation Location / Место Установки): 工作装置 (Gōngzuò Zhuāngzhì / Working Device / Рабочее Оборудование)

举例 (Jǔlì / Example / Пример): 日立 ZX200 斗杆油缸 (Rìlì ZX200 Dǒugān Yóugāng / Hitachi ZX200 Arm Cylinder / Гидравлический Цилиндр Рукояти Hitachi ZX200)

名词解释 (Glossary)

行走马达 (Xíngzǒu Mǎdá / Travel Motor / Ходовой Двигатель)

安装部位 (Ānzhuāng Bùwèi / Installation Location / Место Установки): 行走机构 (Xíngzǒu Jīgòu / Traveling Mechanism / Ходовая Часть)

举例 (Jǔlì / Example / Пример): 神钢 SK350 行走马达 (Shēngāng SK350 Xíngzǒu Mǎdá / Kobelco SK350 Travel Motor / Ходовой Двигатель Kobelco SK350)

名词解释 (Glossary)

回转支承 (Huízhuǎn Zhīchēng / Swing Bearing / Опорно-поворотное Устройство)

安装部位 (Ānzhuāng Bùwèi / Installation Location / Место Установки): 上部结构与下部结构连接处 (Shàngbù Jiégòu yǔ Xiàbù Jiégòu Liánjiē Chù / Connection Point of Upper and Lower Structures / Место Соединения Верхней и Нижней Конструкций)

举例 (Jǔlì / Example / Пример): 沃尔沃 EC220 回转支承 (Wò'ěrwò EC220 Huízhuǎn Zhīchēng / Volvo EC220 Swing Bearing / Опорно-поворотное Устройство Volvo EC220)

名词解释 (Glossary)

涡轮增压器 (Wōlún Zēngyāqì / Turbocharger / Турбокомпрессор)

安装部位 (Ānzhuāng Bùwèi / Installation Location / Место Установки): 发动机进气系统 (Fādòngjī Jìnqì Xìtǒng / Engine Intake System / Система Впуска Двигателя)

举例 (Jǔlì / Example / Пример): 康明斯 ISX15 涡轮增压器 (Kāngmíngsī ISX15 Wōlún Zēngyāqì / Cummins ISX15 Turbocharger / Турбокомпрессор Cummins ISX15)

名词解释 (Glossary)

喷油器 (Pēnyóuqì / Fuel Injector / Топливная Форсунка)

安装部位 (Ānzhuāng Bùwèi / Installation Location / Место Установки): 发动机燃油系统 (Fādòngjī Rányóu Xìtǒng / Engine Fuel System / Топливная Система Двигателя)

举例 (Jǔlì / Example / Пример): 奔驰 Actros 喷油器 (Bēnchí Actros Pēnyóuqì / Mercedes-Benz Actros Fuel Injector / Топливная Форсунка Mercedes-Benz Actros)

名词解释 (Glossary)

空气滤清器 (Kōngqì Lǜqīngqì / Air Filter / Воздушный Фильтр)

举例 (Jǔlì / Example / Пример): 约翰迪尔 8R 空气滤清器 (Yuēhàndí'ěr 8R Kōngqì Lǜqīngqì / John Deere 8R Air Filter / Воздушный Фильтр John Deere 8R)

名词解释 (Glossary)

刹车片 (Shāchē Piàn / Brake Pad / Тормозная Колодка)

安装部位 (Ānzhuāng Bùwèi / Installation Location / Место Установки): 车轮制动系统 (Chēlún Zhìdòng Xìtǒng / Wheel Braking System / Тормозная Система Колеса)

举例 (Jǔlì / Example / Пример): 东风天龙刹车片 (Dōngfēng Tiānlóng Shāchē Piàn / Dongfeng Tianlong Brake Pad / Тормозная Колодка Dongfeng Tianlong)

名词解释 (Glossary)

火花塞 (Huǒhuāsāi / Spark Plug / Свеча Зажигания)

安装部位 (Ānzhuāng Bùwèi / Installation Location / Место Установки): 发动机点火系统 (Fādòngjī Diǎnhuǒ Xìtǒng / Engine Ignition System / Система Зажигания Двигателя)

举例 (Jǔlì / Example / Пример): 本田 Civic 火花塞 (Běntián Civic Huǒhuāsāi / Honda Civic Spark Plug / Свеча Зажигания Honda Civic)

工程机械小常识 (Common Knowledge of Engineering Machinery)

挖掘机工作时发动机过热是什么原因？ (Wājuéjī gōngzuò shí fādòngjī guòrè shì shénme yuányīn? / What are the reasons for excavator engine overheating during operation? / Каковы причины перегрева двигателя экскаватора во время работы?)

常见原因包括冷却液不足、散热器堵塞、风扇故障、水泵故障、节温器故障等。(Chángjiàn yuányīn bāokuò lěngquèyè bùzú, sànrèqì dǔsè, fēngshàn gùzhàng, shuǐbèng gùzhàng, jiéwēnqì gùzhàng děng. / Common reasons include insufficient coolant, radiator blockage, fan failure, water pump failure, thermostat failure, etc. / Распространенные причины включают недостаток охлаждающей жидкости, засорение радиатора, неисправность вентилятора, неисправность водяного насоса, неисправность термостата и т. д.)

工程机械小常识 (Common Knowledge of Engineering Machinery)

如何判断挖掘机液压油是否需要更换？ (Rúhé pànduàn wājuéjī yèyāyóu shìfǒu xūyào gēnghuàn? / How to determine if the excavator hydraulic oil needs to be replaced? / Как определить, нуждается ли гидравлическое масло экскаватора в замене?)

可以通过观察油的颜色、气味以及检查油的清洁度来判断。如果油变黑、有异味或含有杂质，则需要更换。(Kěyǐ tōngguò guānchá yóu de yánsè, qìwèi yǐjí jiǎnchá yóu de qīngjiédù lái pànduàn. Rúguǒ yóu biàn hēi, yǒu yìwèi huò hányǒu zázhì, zé xūyào gēnghuàn. / You can judge by observing the color and smell of the oil, as well as checking its cleanliness. If the oil turns black, has an odor, or contains impurities, it needs to be replaced. / Определить это можно, наблюдая за цветом и запахом масла, а также проверяя его чистоту. Если масло почернело, имеет запах или содержит примеси, его необходимо заменить.)

工程机械小常识 (Common Knowledge of Engineering Machinery)

挖掘机启动困难可能有哪些原因？ (Wājuéjī qǐdòng kùnnán kěnéng yǒu nǎxiē yuányīn? / What could be the reasons for difficulty in starting an excavator? / Каковы могут быть причины затрудненного запуска экскаватора?)

可能的原因包括电池电量不足、启动马达故障、燃油系统故障、发动机故障等。(Kěnéng de yuányīn bāokuò diànchí diànliàng bùzú, qǐdòng mǎdá gùzhàng, rányóu xìtǒng gùzhàng, fādòngjī gùzhàng děng. / Possible reasons include insufficient battery power, starter motor failure, fuel system failure, engine failure, etc. / Возможные причины включают недостаточный заряд аккумулятора, неисправность стартера, неисправность топливной системы, неисправность двигателя и т. д.)

工程机械故障排除 (Engineering Machinery Troubleshooting)

故障现象 (Gùzhàng Xiànxiàng / Fault Phenomenon / Проявление Неисправности): 小松 PC200-7 挖掘机出现行走跑偏 (Xiǎosōng PC200-7 wājuéjī chūxiàn xíngzǒu pǎopiān / Komatsu PC200-7 excavator has travel deviation / Экскаватор Komatsu PC200-7 имеет отклонение при движении).

可能原因 (Kěnéng Yuányīn / Possible Causes / Возможные Причины):

行走马达故障 (Xíngzǒu Mǎdá Gùzhàng / Travel Motor Failure / Неисправность Ходового Двигателя)
行走减速器故障 (Xíngzǒu Jiǎnsùqì Gùzhàng / Travel Reducer Failure / Неисправность Ходового Редуктора)
履带张紧度不一致 (Lǚdài Zhāngjǐndù Bù Yīzhì / Uneven Track Tension / Неравномерное Натяжение Гусениц)
主控阀故障 (Zhǔkòng Fá Gùzhàng / Main Control Valve Failure / Неисправность Главного Распределительного Клапана)
液压油路堵塞 (Yèyā Yóulù Dǔsè / Hydraulic Oil Circuit Blockage / Засорение Гидравлической Масляной Магистрали)

处理方案 (Chǔlǐ Fāng'àn / Troubleshooting Steps / Способы Устранения):

检查行走马达和减速器是否有异响或漏油，必要时进行维修或更换。(Jiǎnchá xíngzǒu mǎdá hé jiǎnsùqì shìfǒu yǒu yìxiǎng huò lòuyóu, bìyào shí jìnxíng wéixiū huò gēnghuàn. / Check the travel motor and reducer for abnormal noise or oil leakage, repair or replace if necessary. / Проверьте ходовой двигатель и редуктор на наличие посторонних шумов или утечек масла, при необходимости отремонтируйте или замените.)
调整履带张紧度，确保两侧履带张紧度一致。(Tiáozhěng lǚdài zhāngjǐndù, quèbǎo liǎngcè lǚdài zhāngjǐndù yīzhì. / Adjust the track tension to ensure it is consistent on both sides. / Отрегулируйте натяжение гусениц, убедившись, что оно одинаково с обеих сторон.)
检查主控阀是否有卡滞现象，清洗或更换主控阀。(Jiǎnchá zhǔkòng fá shìfǒu yǒu kǎzhì xiànxiàng, qīngxǐ huò gēnghuàn zhǔkòng fá. / Check the main control valve for sticking, clean or replace the main control valve. / Проверьте главный распределительный клапан на заедание, очистите или замените его.)
检查液压油路是否有堵塞，清理堵塞物。(Jiǎnchá yèyā yóulù shìfǒu yǒu dǔsè, qīnglǐ dǔsè wù. / Check the hydraulic oil circuit for blockages and clear any obstructions. / Проверьте гидравлическую масляную магистраль на наличие засоров и устраните их.)
如果以上方法无法解决问题，建议联系专业的维修人员进行检查和维修。(Rúguǒ yǐshàng fāngfǎ wúfǎ jiějué wèntí, jiànyì liánxì zhuānyè de wéixiū rényuán jìnxíng jiǎnchá hé wéixiū. / If the above methods cannot solve the problem, it is recommended to contact professional maintenance personnel for inspection and repair. / Если вышеуказанные методы не могут решить проблему, рекомендуется обратиться к профессиональному обслуживающему персоналу для проверки и ремонта.)

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