
Part Name: Starter Relay
Part No: OEM
Applicable Models: Komatsu WA500-1
Delivery Options : Express freight / Standard (sea) Freight
Condition/Options: New/ OEM replacement / Genuine original
Warranty : 6 months
MOQ : 1 Piece
Need a specific Starter Relay or other specialized part? We support Custom Development and OEM Manufacturing for all types of Starter Relays, solenoids, and various engine electrical components for construction machinery, heavy trucks, agricultural equipment, and automobiles. Contact Growshine for your customized parts solution!
Product Introduction: Welcome to Growshine International's premium selection of engine electrical parts. We are proud to present the reliable OEM Starter Relay for Yanmar engines and equipment. This essential electrical component ensures the smooth starting of your machinery. Our product features the precise OEM part number 129930-77950 and its non-hyphenated variant 12993077950. Growshine is your trusted source for high-quality, durable spare parts.
Core Product Details and Application: This Starter Relay, often serving as a preheating or glow plug relay, is specifically designed for Yanmar diesel engines used in various applications, including agricultural equipment and construction machinery. The OEM number 129930-77950 guarantees compatibility and performance, making it a critical component for engine electrical systems. Whether you are maintaining a mini-excavator or a tractor, relying on genuine-quality parts like this relay is vital for operational efficiency and reducing costly downtime. Our focus is on providing robust engineering machinery accessories and heavy truck accessories.
Growshine International - Your Global Parts Partner: Growshine International specializes in the import and export trade of engineering machinery parts, heavy truck parts, agricultural equipment parts, and automobile parts. We ensure all our products, including the 129930-77950 Yanmar Starter Relay, meet stringent quality standards. Our extensive inventory includes everything from hydraulic pumps and transmission gears to engine rebuild kits and fuel injectors.
Long-Tail SEO Keywords for Better Searchability: Yanmar engine starting problem fix, where to buy 129930-77950 relay, affordable Yanmar starter parts, construction equipment electrical components supplier, heavy duty truck starter relay replacement, agricultural machinery electrical systems, OEM quality tractor parts, reliable diesel engine spare parts, international trade of engineering parts, wholesale heavy truck accessories, engine electrical harness repair, fast shipping for 12993077950, excavator engine relay switch, high-quality auto engine parts, reliable Yanmar solenoid valve, construction machinery parts wholesale, heavy machinery component exporter, engine parts sourcing services, import heavy truck spare parts, genuine OEM 129930-77950.
Component Knowledge Corner - Part 1:
Hydraulic Pump: Converts mechanical power into hydraulic energy (flow and pressure). Installed on the engine or transmission.
Example Keyword: Caterpillar 345D Hydraulic Main Pump, Катерпиллер 345Д Главный Гидравлический Насос, 卡特彼勒 345D 液压主泵.Turbocharger: Increases engine power by forcing extra air into the combustion chamber. Installed on the exhaust manifold.
Example Keyword: Cummins ISX15 Garrett Turbocharger, Камминс ИСХ15 Гарретт Турбокомпрессор, 康明斯 ISX15 盖瑞特 涡轮增压器. (Click here for Garrett Turbocharger list!)Water Pump: Circulates coolant through the engine block and radiator to prevent overheating. Installed on the engine block/front.
Example Keyword: Volvo VNL D13 Water Pump, Вольво ВНЛ Д13 Водяной Насос, 沃尔沃 VNL D13 水泵.Fuel Injector: Sprays fuel into the engine's combustion chamber. Installed in the cylinder head/manifold.
Example Keyword: John Deere 8320R Fuel Injector, Джон Дир 8320Р Топливная Форсунка, 约翰迪尔 8320R 燃油喷射器.
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Component Knowledge Corner - Part 2:
Starter Motor: Electric motor that rotates the engine to initiate its operation. Installed near the flywheel/transmission housing.
Example Keyword: Komatsu PC200-8 Starter Motor, Комацу PC200-8 Стартер, 小松 PC200-8 启动马达.Transmission Gear: Part of the gearbox that changes the speed and torque ratio. Installed inside the transmission.
Example Keyword: ZF 16S181 Transmission Gear, ЗФ 16С181 Коробка Передач, ZF 16S181 变速箱齿轮.Brake Caliper: Houses the brake pads and pistons; essential for stopping the vehicle. Installed on the wheel assembly/axle.
Example Keyword: Mercedes-Benz Actros MP4 Brake Caliper, Мерседес-Бенц Актрос МП4 Тормозной Суппорт, 梅赛德斯-奔驰 Actros MP4 刹车卡钳.
We also supply a full range of parts for KALMAR equipment! (View KALMAR Product List!)
🔧 Machinery Fault and Solution:
Equipment: Heavy Truck - Freightliner Cascadia DD15
Fault: The engine cranks but will not start, or starts intermittently. The dashboard shows an electrical fault code. Often, this is caused by a faulty Starter Relay, such as the equivalent for this heavy-duty application, or a failing solenoid.
Solution: 1. Check the battery voltage and connections to ensure adequate power supply. 2. Test the continuity and resistance of the Starter Relay (e.g., $129930-77950$ equivalent) using a multimeter. 3. If the relay does not click or pass the required current to the starter solenoid when the key is turned, it is likely the culprit and must be replaced with a new, OEM-quality part. 4. Inspect wiring harness for corrosion or damage. Replacing the faulty relay often resolves the no-start issue immediately, restoring reliable starting capability.
Component Knowledge Corner - Part 3:
Seal Kit: A collection of rubber/plastic seals (O-rings, etc.) to prevent fluid leakage. Installed in hydraulic cylinders, pumps, etc.
Example Keyword: Caterpillar 320 GC Hydraulic Cylinder Seal Kit, Катерпиллер 320 ГК Комплект Уплотнений Гидравлического Цилиндра, 卡特彼勒 320 GC 液压油缸密封套件. (Explore Caterpillar Parts!)Piston Ring: Seals the combustion chamber, regulates oil consumption, and transfers heat. Installed on the piston.
Example Keyword: Kubota V2403 Piston Ring Set, Кубота В2403 Комплект Поршневых Колец, 久保田 V2403 活塞环套装.Track Roller: Supports the weight of the machine and guides the track chain. Installed on the undercarriage/track frame.
Example Keyword: Hitachi ZX470LCH Track Roller, Хитачи ЗХ470ЛЧ Опорный Каток, 日立 ZX470LCH 履带支重轮.
Looking for a wide range of high-quality Hydraulic Products? (Click here for Hydraulic Parts!) For specific Hydraulic Pump related products, click here!
Growshine International Business Scope: We operate globally, ensuring a steady supply of high-demand spare parts. Our business encompasses strict quality control, efficient global logistics, and competitive pricing for all sectors: Engine Parts, Transmission Systems, Hydraulic Components, Electrical Systems (like the 129930-77950 Starter Relay), and Undercarriage Parts. We are committed to being the one-stop solution for all your construction, heavy truck, and agriculture machinery part needs.
Component Knowledge Corner - Part 4:
Air Filter: Cleans the air entering the engine for optimal combustion. Installed in the air intake system.
Example Keyword: Ford F-150 Air Filter Element, Форд Ф-150 Воздушный Фильтр, 福特 F-150 空气滤清器元件.Differential Assembly: Allows wheels on the same axle to rotate at different speeds when cornering. Installed in the axle housing.
Example Keyword: Scania R450 Differential Assembly, Скания Р450 Дифференциал, 斯堪尼亚 R450 差速器总成.Sensor (e.g., Pressure Sensor): Monitors physical conditions to provide data to the machine's ECU. Installed on various systems (engine, hydraulic, etc.).
Example Keyword: Komatsu WA500-7 Hydraulic Pressure Sensor, Комацу WA500-7 Датчик Гидравлического Давления, 小松 WA500-7 液压压力传感器.
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