Part Name: Starter Relay
Part No: 87861-74-5-100
Applicable Models: PC200
Delivery Options : Express freight / Standard (sea) Freight
Condition/Options: New/ OEM replacement / Genuine original
Warranty : 6 months
MOQ : 1 Piece
Growshine Komatsu PC200-8 Starter Relay 7861-74-5100, 7861745100 - Essential Engine Electrical Component
Discover the reliable Starter Relay for your Komatsu PC200-8 Excavator, proudly supplied by Growshine International. We specialize in high-quality Komatsu excavator electrical parts and genuine construction machinery spares.
Product Details: Komatsu PC200-8 Starter Relay
This essential electrical component is a high-performance Starter Relay designed for the Komatsu PC200-8 series excavator. The primary part number is 7861-74-5100, also searchable as 7861745100. As a leading supplier of Komatsu PC200-8 replacement parts, Growshine International ensures this relay meets rigorous quality standards for reliable engine start-up. Whether you need excavator engine electrical components or Komatsu genuine spare parts online, trust our catalog.
Growshine International is committed to providing high-quality aftermarket construction parts, including this PC200-8 Starter Relay. We are your reliable source for Komatsu heavy equipment parts shipping worldwide.
Customization and Development Services for Engineering Parts
Beyond our stocked items like the Starter Relay 7861-74-5100, Growshine International (格莳国际) offers comprehensive custom parts manufacturing services. If you require specialized engineering machinery components, heavy-duty truck electrical relays, custom agricultural equipment sensors, or auto parts development that are not readily available, our team can support the custom development of various spare parts to meet your exact specifications. Contact us for your unique OEM quality replacement parts development needs!
Growshine International: Your Global Parts Supplier
Growshine International (格莳国际) is a specialized company in the import and export trade of spare parts for engineering machinery parts, heavy truck parts, agricultural machinery parts, and auto parts. Our extensive product range includes essential components like the Komatsu PC200-8 Starter Relay 7861745100, ensuring that your equipment, from Komatsu excavators to diverse heavy-duty vehicles, maintains peak operational efficiency. We focus on providing reliable heavy equipment spare parts solutions and global sourcing of construction equipment components.
We supply a wide array of products including excavator hydraulic pumps, heavy truck brake systems, tractor engine overhaul kits, and automotive sensors and switches. Find affordable construction equipment parts and quality heavy machinery spare parts here. Looking for other electrical parts? Explore our range of Denso relays: Denso Relays 156700-1840, 156700-2190, 156700-3250, 156700-2770 are on sale! Click to view promotion! (Clickable Link)
Key Component Glossary (Engineering Machinery, Heavy Truck, Agricultural Machinery, Auto Parts)
Location: Inside the hydraulic cylinder (e.g., boom, arm). Function: Prevents fluid leakage and contamination.
Example: Caterpillar 345D Boom Cylinder Seal Kit (English), Катерпиллер 345D Комплект уплотнений цилиндра стрелы (Russian), 卡特彼勒 345D动臂油缸密封件 (Chinese). Keyword: Caterpillar 345D Boom Cylinder Seal Kit.
Location: Engine cylinder head. Function: Sprays fuel into the combustion chamber.
Example: Cummins ISX Engine Fuel Injector (English), Инжектор топлива двигателя Cummins ISX (Russian), 康明斯 ISX 发动机燃油喷射器 (Chinese). Keyword: Cummins ISX Fuel Injector.
Location: Engine block/front of the engine. Function: Circulates coolant through the engine.
Example: John Deere 8320R Tractor Water Pump (English), Водяной насос трактора John Deere 8320R (Russian), 约翰迪尔 8320R 拖拉机水泵 (Chinese). Keyword: John Deere 8320R Water Pump.
Location: Near the wheel hub. Function: Measures wheel speed for the Anti-lock Braking System.
Example: Mercedes-Benz E-Class ABS Sensor (English), Датчик ABS Mercedes-Benz E-Class (Russian), 梅赛德斯-奔驰 E 级 ABS 传感器 (Chinese). Keyword: Mercedes-Benz E-Class ABS Sensor.
Location: Exhaust manifold. Function: Compresses air to force more air into the engine, increasing power.
Example: Volvo FH16 Turbocharger (English), Турбонагнетатель Volvo FH16 (Russian), 沃尔沃 FH16 涡轮增压器 (Chinese). Keyword: Volvo FH16 Turbocharger. Check our Garrett Turbocharger list! (Clickable Link)
Location: Between the engine and transmission. Function: Transfers rotational power from the engine to the transmission.
Example: Komatsu WA470 Wheel Loader Torque Converter (English), Гидротрансформатор погрузчика Komatsu WA470 (Russian), 小松 WA470 轮式装载机变矩器 (Chinese). Keyword: Komatsu WA470 Torque Converter.
Location: Hydraulic system line or reservoir. Function: Removes contaminants from the hydraulic fluid.
Example: Kalmar DRF450 Reach Stacker Hydraulic Oil Filter (English), Гидравлический масляный фильтр ричстакера Kalmar DRF450 (Russian), 卡尔玛 DRF450 集装箱堆高机液压油滤清器 (Chinese). Keyword: Kalmar DRF450 Hydraulic Oil Filter. Explore our KALMAR product list! (Clickable Link)
Location: Steering linkage (front axle). Function: Connects the steering rack to the steering knuckle.
Example: Scania R-series Truck Tie Rod End (English), Наконечник рулевой тяги грузовика Scania R-series (Russian), 斯堪尼亚 R 系列卡车横拉杆球头 (Chinese). Keyword: Scania R-series Tie Rod End.
Location: Engine bay, driven by a belt. Function: Generates electrical power to run the car's electrical systems and charge the battery.
Example: Toyota Hilux Alternator (English), Генератор Toyota Hilux (Russian), 丰田海拉克斯发电机 (Chinese). Keyword: Toyota Hilux Alternator.
Location: At the end of the drivetrain, connected to the track or wheel. Function: Reduces speed and increases torque to the tracks/wheels.
Example: Doosan DX225LCA Final Drive Assembly (English), Бортовой редуктор Doosan DX225LCA (Russian), 斗山 DX225LCA 终传动总成 (Chinese). Keyword: Doosan DX225LCA Final Drive.
Our Business Scope and Featured Products
Growshine International is your trusted partner for reliable aftermarket parts supply. We offer competitive pricing and excellent service for a full spectrum of parts. Our offerings include hydraulic system components for excavators, engine maintenance kits for heavy trucks, precision components for agricultural machinery, and electrical parts for passenger vehicles. Looking for excavator final drive seals or a heavy truck air brake valve? We have you covered.
We invite you to check our specialized product categories:
Explore our full range of Hydraulic Products (Click to view), essential for excavator operation.
Need a Hydraulic Pump? See related products here! (Clickable Link).
For Caterpillar machine owners, visit our Caterpillar Product Search (Clickable Link) for parts like Caterpillar engine sensor replacement.
Our commitment is to be the best global parts import and export solution provider, stocking popular items like the Starter Relay 7861-74-5100 and sourcing hard-to-find heavy equipment spares.
Troubleshooting: Common Heavy Truck Fault
Fault: Engine Cranks but Won't Start on a Scania R450 Truck
Possible Cause: One common cause, especially in older Scania R450 heavy trucks, is a failure in the low-pressure fuel system, such as a clogged fuel filter or a faulty electric fuel pump. A simple check of the starter relay (similar to the 7861745100 in function, but truck specific) should also be made, but if the engine cranks well, the relay is likely fine. However, a less common but significant issue is Engine Control Unit (ECU) communication failure due to a short in a wiring harness or poor grounding.
Treatment Plan:
Inspect and replace the Scania fuel filters. This is the most frequent fix.
Test the Scania R450 electric fuel pump pressure and current draw. Replace if out of specification.
If steps 1 & 2 fail, perform a diagnostic scan to check for ECU fault codes. If communication is lost or a specific sensor (e.g., crankshaft position sensor) is reported faulty, check the related wiring harness for visible damage, corrosion, or loose connections.
Ensure all main battery grounds and engine grounds are clean and tight. A poor ground can mimic many complex electrical faults.
