Part Name: Starter Relay
Part No: 21Q6-30300
Applicable Models: 21Q6-30300
Delivery Options : Express freight / Standard (sea) Freight
Condition/Options: New/ OEM replacement / Genuine original
Warranty : 6 months
MOQ : 1 Piece
Growshine Starter Relay 21Q6-30300 21Q630300 for Specific Application Equipment - 21Q6-30300
Growshine International offers **Customized Development and Production Services** for a wide range of Spare Parts, including Relays, Solenoids, Sensors, and more, tailored to your exact specifications!
Product Title: Growshine Starter Relay 21Q6-30300 21Q630300 for Specific Application Equipment Spare Parts
Product Description: Growshine International (格莳国际) proudly presents the high-quality **Starter Relay** with part number 21Q6-30300 and its non-hyphenated variant 21Q630300. This essential electrical component is designed for reliable performance in various Specific Application Equipment models. As a leading supplier in the import and export trade of **engineering machinery parts**, **heavy truck parts**, **agricultural machinery parts**, and **auto parts**, Growshine ensures that this Starter Relay meets stringent quality standards. We are your trusted partner for OEM quality spare parts and reliable machinery components. Find the perfect Starter Relay replacement and keep your equipment running smoothly.
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Product Application and Details: The 21Q6-30300 Starter Relay, also known as 21Q630300, is a critical component in the starting circuit of compatible Specific Application Equipment. It acts as an electromagnetic switch, allowing a small current from the ignition switch to activate a much larger current needed to turn the starter motor, ensuring a powerful and consistent engine start. Growshine International specializes in providing a complete range of engineering machinery spare parts, including various **Relays**, **Solenoids**, **Sensors**, **Hydraulic components**, and **Engine parts**. We serve the international market with premium **heavy truck parts**, **agricultural machinery parts**, and **auto parts**. Contact us for your next procurement of high-durability machine parts and precision engine components.
Equipment: Excavator, Komatsu PC300-8
Fault: The machine will not start, and the only sound is a single "click" when the key is turned to the start position.
Possible Cause & Solution: This often indicates a fault with the Starter Relay or Solenoid. The "click" is the solenoid engaging, but not enough current is flowing to the starter motor.
Check/Action: Check the battery voltage and terminals. If the battery is good, test the **Starter Relay** (21Q6-30300 or equivalent) for continuity and proper function. If the relay is faulty, replace it with a high-quality unit like the Growshine 21Q630300 to restore proper starting function.
Essential Machinery Component Terminology:
Hydraulic Pump: Converts mechanical power into hydraulic energy to move fluid. **Installed in the main power unit/engine bay.** Caterpillar 345D Hydraulic Pump (Катерпиллер 345D Гидравлический насос | 卡特彼勒 345D 液压泵).
Fuel Injector: Sprays fuel into the engine's cylinders. **Installed in the engine cylinder head.** Cummins ISX Diesel Fuel Injector (Камминз ISX Дизельный инжектор | 康明斯 ISX 柴油喷油器).
Transmission Oil Cooler: Regulates the temperature of the transmission fluid. **Installed near the transmission or radiator.** Volvo VNL Transmission Oil Cooler (Вольво ВНЛ Охладитель трансмиссионного масла | 沃尔沃 VNL 变速箱油冷却器).
Water Pump: Circulates coolant through the engine block and radiator. **Installed on the engine block/front of the engine.** John Deere 8400R Water Pump (Джон Дир 8400R Водяной насос | 约翰迪尔 8400R 水泵).
Brake Caliper: Houses the brake pads and pistons to apply friction to the rotors. **Installed on the wheel hub assembly.** Mercedes-Benz C-Class Brake Caliper (Мерседес-Бенц C-Класс Тормозной суппорт | 梅赛德斯-奔驰 C 级 刹车卡钳).
Turbocharger: Compresses the air entering the engine for increased power. **Installed on the engine exhaust manifold.** Garrett GT45 Turbocharger (Гарретт GT45 Турбонагнетатель | 盖瑞特 GT45 涡轮增压器). Click here for Garrett Turbocharger List!
Solenoid Valve: Controls the flow of fluid or air using an electrical signal. **Installed in hydraulic or pneumatic circuits.** JCB 3CX Solenoid Valve (Джи-Си-Би 3CX Электромагнитный клапан | 杰西博 3CX 电磁阀).
Steering Tie Rod: Connects the steering rack to the steering knuckle. **Installed in the steering system/under the vehicle.** Toyota Hilux Steering Tie Rod (Тойота Хайлюкс Рулевая тяга | 丰田海拉克斯 转向拉杆).
Track Roller: Supports the weight of the machine and guides the track chain. **Installed on the undercarriage.** Hitachi EX200 Track Roller (Хитачи EX200 Опорный каток | 日立 EX200 履带支重轮).
Air Filter Element: Filters dust and debris from the air intake. **Installed in the air intake housing.** MAN TGS Air Filter Element (МАН TGS Элемент воздушного фильтра | 曼 TGS 空气滤清器滤芯).
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Growshine International (格莳国际) Business Scope: We specialize in the import and export trade of comprehensive spare parts for global markets. Our core business includes high-quality engineering machinery parts, robust heavy truck parts, durable agricultural machinery parts, and reliable auto parts. We offer everything from engine components like the Starter Relay 21Q6-30300, hydraulic pump components, to various filters and electrical parts. Our commitment is to global clients needing **efficient parts procurement** and **stable supply chain solutions** for construction equipment maintenance and fleet management.
Product Catalogs & Resources: Explore our wide range of products for all your machinery needs:
For Container Handling Equipment: KALMAR Product List - Click to View!
For Hydraulic System Solutions: Hydraulic Products - Click for Details!
Specialized Hydraulic Pumps: Hydraulic Pump Related Products - Click Here!
Comprehensive Caterpillar Parts: Caterpillar Products - Click to Explore!
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