CAT 125-1302 Starter Magnetic Relay Switch | Caterpillar 320C 3516B Electrical Parts

125-1302 Caterpillar Starter Magnetic Relay Switch

OEM-quality starter magnetic relay switch for Caterpillar heavy machinery and diesel engines, compatible with Caterpillar 320C excavators and 3516B diesel engines. Acts as a heavy-duty electromagnetic switch to engage high-amperage current from the battery directly to the starter motor upon receiving the ignition signal, ensuring smooth, instantaneous engine cranking and protecting ignition circuits from overload. Manufactured to OEM specifications with heavy-duty copper contacts, robust solenoid windings, and a sealed corrosion-resistant housing engineered to perform reliably under high vibration, moisture, and extreme temperatures. Essential for starting system repairs, starter solenoid replacement, and electrical maintenance. Ideal for global parts retailers, equipment repair shops, and heavy machinery workshops.

Part Specifications

• Part Number: 125-1302
• Brand: Caterpillar (CAT)
• Component: Starter Magnetic Relay Switch (Relay AS-Magnetic)
• Condition: New / OEM Replacement
• Country of Origin: China
• HS Code: 8536.49
• Application: Heavy Machinery / Construction / Marine / Power Generation

Compatible Equipment & Engine Models

• Caterpillar Excavators: 320C
• Caterpillar Engines: 3516B
• Please confirm compatibility with your machine or engine serial number before ordering.

Cross Reference Numbers

125-1302 | 1251302 | CAT1251302

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